diff --git a/.agents/skills/polyxml-core-engine/SKILL.md b/.agents/skills/polyxml-core-engine/SKILL.md
index 86dd4b3..ce4802c 100644
--- a/.agents/skills/polyxml-core-engine/SKILL.md
+++ b/.agents/skills/polyxml-core-engine/SKILL.md
@@ -267,6 +267,13 @@ randomized hasher and an eviction nonce; FIFO would miss on every access for a
 cycle of 17 patterns. Public schema metadata remains mutable before sharing,
 so avoid cached flags that become stale after edits.
 
+The `xsi:type` variant registry shares an atomic populated flag with its locked
+vector across schema clones. Update the flag under the write lock in
+`set_variants`, including when clearing the registry; empty dispatch checks can
+then avoid a read lock. Nonempty vector snapshots and QName lookups remain
+locked. Preserve sequential clone/update tests, concurrent snapshots, and full
+`test_xsi_type` dispatch/error/round-trip coverage when changing the registry.
+
 The serializer writes directly into an append-only byte vector and checks for
 lexical-list obligations before traversing repeated values. Ordinary nested
 records validate their own fields. Lexical lists append tokens to one string;
diff --git a/.agents/skills/polyxml-runtime-investigation/SKILL.md b/.agents/skills/polyxml-runtime-investigation/SKILL.md
index b43445f..fcbb696 100644
--- a/.agents/skills/polyxml-runtime-investigation/SKILL.md
+++ b/.agents/skills/polyxml-runtime-investigation/SKILL.md
@@ -23,6 +23,19 @@ separate from the schema-driven `PolyValue` runtime.
   synchronize and rebuild an editable binding. After preparing its environment,
   use `uv run --no-sync` for companion runs. If a build overlaps timing, retain
   and mark that attempt as contaminated, then repeat it.
+  Use worktree-owned workspace build targets for tests, CLI and native bindings.
+  A shared debug target can retain an unchanged test executable linked to an
+  earlier worktree implementation, as well as stale top-level CLI aliases.
+  Even a Cargo compile message does not prove every executable was relinked.
+  Verify discriminating fixtures or symbols when switching revisions; discard
+  mismatched preflights and rerun in an isolated target. Standalone comparison
+  consumers use separate baseline/current targets, explicit dependency paths
+  and Cargo-reported hashed executable artifacts; keep them separate from
+  workspace build caches and retain artifact provenance.
+- Preflight the exact PATH used by the quality gate as well as timing tools.
+  A locally installed TypeScript compiler needs its node_modules/.bin on PATH;
+  having Node available does not make tsc available. Record missing-tool failures
+  and rerun the complete gate with the prepared toolchain environment.
 - Run heavy work serially, with one Cargo worker and the repository memory cap.
   Short comparisons screen hypotheses. Repeat retained improvements with longer
   measurements, alternating revision order and preserving every raw sample.
@@ -35,6 +48,10 @@ separate from the schema-driven `PolyValue` runtime.
 - Preserve validation, errors, split Text/CData/GeneralRef handling, nil reads,
   nesting and metadata mutation semantics. Borrow scalar metadata from the schema
   owned by a frame instead of cloning rich scalar definitions per element.
+  Profile empty `xsi:type` registry checks too: a shared flag maintained by the
+  registration setter can avoid locks without caching mutable field metadata.
+  Compare an empty registry with actual populated dispatch using `variants.rs`;
+  do not assume a plain-record gain also proves polymorphic throughput.
 - Include the 17-pattern cycle when changing eviction: a 16-entry FIFO has
   systematic misses, while salted victim selection preserves reuse at the same
   capacity. Confirm hot cases too; pressure improvements alone do not establish
diff --git a/benchmarks/rust-runtime-investigation/README.md b/benchmarks/rust-runtime-investigation/README.md
index 8c2e4f4..340b561 100644
--- a/benchmarks/rust-runtime-investigation/README.md
+++ b/benchmarks/rust-runtime-investigation/README.md
@@ -113,3 +113,9 @@ For the generated sensor control, run the XML/Serde regression runner and use
 its output directory. This computes each process's median of seven timing
 samples, then the median across processes; it retains the process deltas. The
 statistic differs from the Criterion process means above.
+
+`variants.rs` compares 1,000 ordinary nested items with 1,000 items selected by
+namespaced `xsi:type`. It verifies every scalar payload and the concrete schema,
+then checks the XML round trip before measuring. Use the alternate `--harness`
+argument to check both empty-registry and populated-dispatch paths when changing
+registry synchronization.
diff --git a/benchmarks/rust-runtime-investigation/variants.rs b/benchmarks/rust-runtime-investigation/variants.rs
new file mode 100644
index 0000000..00483f7
--- /dev/null
+++ b/benchmarks/rust-runtime-investigation/variants.rs
@@ -0,0 +1,85 @@
+use criterion::{
+    criterion_group, criterion_main, BenchmarkId, Criterion, SamplingMode, Throughput,
+};
+use polyxml::schema::{FieldKind, FieldSchema, ModelSchema, ScalarType, ValueType};
+use polyxml::{deserialize, serialize, PolyValue};
+use std::{hint::black_box, sync::Arc};
+
+fn model(name: &str, namespace: Option<&str>) -> Arc<ModelSchema> {
+    let mut builder = ModelSchema::builder(name).field(FieldSchema::new(
+        "value",
+        b"Value",
+        FieldKind::Element,
+        ValueType::Scalar(ScalarType::Int),
+    ));
+    if let Some(namespace) = namespace {
+        builder = builder.namespace(namespace);
+    }
+    builder.build()
+}
+
+fn fixture(registered: bool, count: usize) -> (Arc<ModelSchema>, Vec<u8>) {
+    let base = model("Base", None);
+    if registered {
+        base.set_variants(vec![model("Derived", Some("urn:derived"))]);
+    }
+    let schema = ModelSchema::builder("Root")
+        .field(FieldSchema::new(
+            "items",
+            b"Item",
+            FieldKind::Element,
+            ValueType::List(Box::new(ValueType::Nested(base))),
+        ))
+        .build();
+    let mut xml = String::from(
+        "<Root xmlns:i='http://www.w3.org/2001/XMLSchema-instance' xmlns:d='urn:derived'>",
+    );
+    for index in 0..count {
+        let selector = if registered {
+            " i:type='d:Derived'"
+        } else {
+            ""
+        };
+        xml.push_str(&format!("<Item{selector}><Value>{index}</Value></Item>"));
+    }
+    xml.push_str("</Root>");
+    let value = deserialize(xml.as_bytes(), Arc::clone(&schema)).unwrap();
+    let items = value.get("items").unwrap().as_list().unwrap();
+    assert_eq!(items.len(), count);
+    for (index, item) in items.iter().enumerate() {
+        assert_eq!(item.get("value"), Some(&PolyValue::Int(index as i64)));
+        let PolyValue::Record { schema, .. } = item else {
+            panic!("expected record")
+        };
+        assert_eq!(schema.name, if registered { "Derived" } else { "Base" });
+    }
+    let output = serialize("Root", &value, &schema, None).unwrap();
+    assert_eq!(value, deserialize(&output, Arc::clone(&schema)).unwrap());
+    (schema, xml.into_bytes())
+}
+
+fn benchmarks(c: &mut Criterion) {
+    for operation in ["variant_read", "variant_write"] {
+        let mut group = c.benchmark_group(operation);
+        group.sampling_mode(SamplingMode::Flat);
+        for (kind, registered) in [("empty_registry", false), ("registered", true)] {
+            let (schema, xml) = fixture(registered, 1000);
+            let value = deserialize(&xml, Arc::clone(&schema)).unwrap();
+            group.throughput(Throughput::Bytes(xml.len() as u64));
+            group.bench_function(BenchmarkId::new(kind, 1000), |b| {
+                if operation == "variant_read" {
+                    b.iter(|| {
+                        black_box(deserialize(black_box(&xml), Arc::clone(&schema)).unwrap())
+                    });
+                } else {
+                    b.iter(|| {
+                        black_box(serialize("Root", black_box(&value), &schema, None).unwrap())
+                    });
+                }
+            });
+        }
+        group.finish();
+    }
+}
+criterion_group!(benches, benchmarks);
+criterion_main!(benches);
diff --git a/crates/polyxml-core/src/schema.rs b/crates/polyxml-core/src/schema.rs
index 920a2a1..8724531 100644
--- a/crates/polyxml-core/src/schema.rs
+++ b/crates/polyxml-core/src/schema.rs
@@ -1,4 +1,5 @@
 use std::collections::HashMap;
+use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::{Arc, RwLock};
 
 #[derive(Debug, Clone, PartialEq, Eq)]
@@ -106,6 +107,12 @@ impl FieldSchema {
     }
 }
 
+#[derive(Debug, Default)]
+struct VariantRegistry {
+    schemas: RwLock<Vec<Arc<ModelSchema>>>,
+    populated: AtomicBool,
+}
+
 #[derive(Debug, Clone)]
 pub struct ModelSchema {
     pub name: String,
@@ -125,7 +132,7 @@ pub struct ModelSchema {
     pub content_pattern: Option<regex::Regex>,
     /// Concrete derivations eligible for `xsi:type` dispatch. Python may
     /// refresh this registry when subclasses are defined after first use.
-    variants: Arc<RwLock<Vec<Arc<ModelSchema>>>>,
+    variants: Arc<VariantRegistry>,
 }
 
 impl ModelSchema {
@@ -136,12 +143,27 @@ impl ModelSchema {
     /// Register the concrete derivations eligible for `xsi:type` dispatch.
     /// Replaces the registry when subclasses are discovered after first use.
     pub fn set_variants(&self, variants: Vec<Arc<ModelSchema>>) {
-        *self.variants.write().unwrap_or_else(|p| p.into_inner()) = variants;
+        let mut registered = self
+            .variants
+            .schemas
+            .write()
+            .unwrap_or_else(|p| p.into_inner());
+        *registered = variants;
+        // Publish emptiness while holding the registry lock. Cloned schemas
+        // share this flag, so later registration/clearing cannot leave a stale
+        // per-schema dispatch plan. Nonempty lookups still use the lock.
+        self.variants
+            .populated
+            .store(!registered.is_empty(), Ordering::Release);
     }
 
     /// Registered derivations for `xsi:type` dispatch (empty when none).
     pub fn variants(&self) -> Vec<Arc<ModelSchema>> {
+        if !self.has_variants() {
+            return Vec::new();
+        }
         self.variants
+            .schemas
             .read()
             .unwrap_or_else(|p| p.into_inner())
             .clone()
@@ -149,16 +171,16 @@ impl ModelSchema {
 
     /// Whether any `xsi:type` derivations are registered for this type.
     pub fn has_variants(&self) -> bool {
-        !self
-            .variants
-            .read()
-            .unwrap_or_else(|p| p.into_inner())
-            .is_empty()
+        self.variants.populated.load(Ordering::Acquire)
     }
 
     /// Look up a derivation by the QName local part of an `xsi:type` value.
     pub fn find_variant(&self, local: &[u8]) -> Option<Arc<ModelSchema>> {
+        if !self.has_variants() {
+            return None;
+        }
         self.variants
+            .schemas
             .read()
             .unwrap_or_else(|p| p.into_inner())
             .iter()
@@ -168,7 +190,11 @@ impl ModelSchema {
 
     /// Look up a derivation by its complete QName.
     pub fn find_variant_qname(&self, namespace: &str, local: &[u8]) -> Option<Arc<ModelSchema>> {
+        if !self.has_variants() {
+            return None;
+        }
         self.variants
+            .schemas
             .read()
             .unwrap_or_else(|p| p.into_inner())
             .iter()
@@ -180,7 +206,11 @@ impl ModelSchema {
 
     /// Whether `candidate` is a registered derivation of `self`.
     pub fn matches_variant(&self, candidate: &ModelSchema) -> bool {
+        if !self.has_variants() {
+            return false;
+        }
         self.variants
+            .schemas
             .read()
             .unwrap_or_else(|p| p.into_inner())
             .iter()
@@ -655,7 +685,7 @@ impl ModelSchemaBuilder {
             is_abstract: self.is_abstract,
             strict_root: self.strict_root,
             content_pattern: self.content_pattern,
-            variants: Arc::new(RwLock::new(Vec::new())),
+            variants: Arc::new(VariantRegistry::default()),
         })
     }
 }
diff --git a/crates/polyxml-core/tests/test_variant_registry.rs b/crates/polyxml-core/tests/test_variant_registry.rs
new file mode 100644
index 0000000..9502c68
--- /dev/null
+++ b/crates/polyxml-core/tests/test_variant_registry.rs
@@ -0,0 +1,75 @@
+use std::sync::Arc;
+
+use polyxml::schema::ModelSchema;
+
+#[test]
+fn registration_and_clearing_are_visible_to_schema_clones() {
+    let base = ModelSchema::builder("Base").build();
+    let clone = (*base).clone();
+    let derived = ModelSchema::builder("Derived")
+        .namespace("urn:derived")
+        .build();
+    assert!(!clone.has_variants());
+    assert!(clone.variants().is_empty());
+    base.set_variants(vec![Arc::clone(&derived)]);
+    assert!(clone.has_variants());
+    assert!(Arc::ptr_eq(&clone.variants()[0], &derived));
+    assert!(Arc::ptr_eq(
+        &clone.find_variant(b"Derived").unwrap(),
+        &derived
+    ));
+    assert!(clone.find_variant_qname("urn:other", b"Derived").is_none());
+    assert!(Arc::ptr_eq(
+        &clone.find_variant_qname("urn:derived", b"Derived").unwrap(),
+        &derived
+    ));
+    assert!(clone.matches_variant(&derived));
+    clone.set_variants(Vec::new());
+    assert!(!base.has_variants());
+    assert!(base.variants().is_empty());
+    assert!(base.find_variant(b"Derived").is_none());
+    assert!(!base.matches_variant(&derived));
+    clone.set_variants(vec![Arc::clone(&derived)]);
+    assert!(base.has_variants());
+    assert!(base.matches_variant(&derived));
+}
+
+#[test]
+fn concurrent_registry_updates_keep_complete_variant_snapshots() {
+    let base = ModelSchema::builder("Base").build();
+    let derived = ModelSchema::builder("Derived").build();
+    std::thread::scope(|scope| {
+        scope.spawn(|| {
+            for index in 0..4096 {
+                base.set_variants(if index % 2 == 0 {
+                    Vec::new()
+                } else {
+                    vec![Arc::clone(&derived)]
+                });
+            }
+            base.set_variants(vec![Arc::clone(&derived)]);
+        });
+        for _ in 0..4 {
+            scope.spawn(|| {
+                for _ in 0..4096 {
+                    // These calls can observe different registry revisions.
+                    // Each populated snapshot must contain the original Arc.
+                    let _ = base.has_variants();
+                    let variants = base.variants();
+                    assert!(variants.len() <= 1);
+                    for variant in variants {
+                        assert!(Arc::ptr_eq(&variant, &derived));
+                    }
+                    if let Some(variant) = base.find_variant(b"Derived") {
+                        assert!(Arc::ptr_eq(&variant, &derived));
+                    }
+                }
+            });
+        }
+    });
+    assert!(base.has_variants());
+    assert!(Arc::ptr_eq(&base.variants()[0], &derived));
+    base.set_variants(Vec::new());
+    assert!(!base.has_variants());
+    assert!(base.variants().is_empty());
+}
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/SHA256SUMS b/research/data/runtime-followups-2026-10-03/performance-experiments/SHA256SUMS
new file mode 100644
index 0000000..3d7763a
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/SHA256SUMS
@@ -0,0 +1,325 @@
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+d8ed59800765f5889de5fe94a4606802c3084b946bd43f4ed9cc5620663ed00b  attribute-fast-screen.tar.gz
+6efc4d7824c9d5632393592e979035083781b129f29b684c20b674446aadc2c6  attribute-fast.patch
+9e99be1bea3b5602be4920c53c9b517d8c6bb161afae51a8176bc3eb04affda6  borrow-schema-screen.tar.gz
+68e90c9af143b078ee4ea5613a369ed72980f7d3e1004dcbf968738267e073d9  borrow-schema-tests.txt
+f1ed9c87133c6da1a55a1d069d8213047c23c8ac3af0f90ba8510eec4a9bf6eb  borrow-schema.patch
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+c8fd688a4a07f28fe31946942c6dae91a7fce48a0050dd58550d4e9f2d67f2c6  combined-registry-attribute-core/current-2/serialization/catalog_items/1000/base/benchmark.json
+d565ddac0ff6ca9e488abe0b8fa8340c597b10e42413d6d237e98aa007cc78a8  combined-registry-attribute-core/current-2/serialization/catalog_items/1000/base/estimates.json
+85c19a0abd7f0684e7a0eaaaa695440ef9d9fb91a936976071444a6ff5beed93  combined-registry-attribute-core/current-2/serialization/catalog_items/1000/base/sample.json
+fc33a98e4e858ec0f7a399e352f0d73a8877e9b04f2adf2ed28a69062ab75d09  combined-registry-attribute-core/current-2/serialization/catalog_items/1000/base/tukey.json
+c8fd688a4a07f28fe31946942c6dae91a7fce48a0050dd58550d4e9f2d67f2c6  combined-registry-attribute-core/current-2/serialization/catalog_items/1000/new/benchmark.json
+d565ddac0ff6ca9e488abe0b8fa8340c597b10e42413d6d237e98aa007cc78a8  combined-registry-attribute-core/current-2/serialization/catalog_items/1000/new/estimates.json
+85c19a0abd7f0684e7a0eaaaa695440ef9d9fb91a936976071444a6ff5beed93  combined-registry-attribute-core/current-2/serialization/catalog_items/1000/new/sample.json
+fc33a98e4e858ec0f7a399e352f0d73a8877e9b04f2adf2ed28a69062ab75d09  combined-registry-attribute-core/current-2/serialization/catalog_items/1000/new/tukey.json
+ab2b4d0591784e51d10e172fdc50c3d056aba94e803ca35633e3eb41866b37dd  combined-registry-attribute-core/current-2/serialization/catalog_items/10000/base/benchmark.json
+b242ed026b122064415a1bd4d8fef921ee2bc2583e183a515abaa8e50af4bcee  combined-registry-attribute-core/current-2/serialization/catalog_items/10000/base/estimates.json
+03ed2915b11762b995a686df57a6bd3e5136afa985097aee486b6ac760902883  combined-registry-attribute-core/current-2/serialization/catalog_items/10000/base/sample.json
+876a727c1ea698902c404d7fbc084abd0a3a7d88501e769cbb0e4329990bb590  combined-registry-attribute-core/current-2/serialization/catalog_items/10000/base/tukey.json
+ab2b4d0591784e51d10e172fdc50c3d056aba94e803ca35633e3eb41866b37dd  combined-registry-attribute-core/current-2/serialization/catalog_items/10000/new/benchmark.json
+b242ed026b122064415a1bd4d8fef921ee2bc2583e183a515abaa8e50af4bcee  combined-registry-attribute-core/current-2/serialization/catalog_items/10000/new/estimates.json
+03ed2915b11762b995a686df57a6bd3e5136afa985097aee486b6ac760902883  combined-registry-attribute-core/current-2/serialization/catalog_items/10000/new/sample.json
+876a727c1ea698902c404d7fbc084abd0a3a7d88501e769cbb0e4329990bb590  combined-registry-attribute-core/current-2/serialization/catalog_items/10000/new/tukey.json
+7ec2a49ce4ced0e9c3f1e30853291da13b5dbab719bdab7fb39143d96a820f77  combined-registry-attribute-core/current-2/serialization/sensor_micro/base/benchmark.json
+0ab227a9d9bae5f202d5546feabce5290a1183fa53d7b8436cfdb52866e35f8a  combined-registry-attribute-core/current-2/serialization/sensor_micro/base/estimates.json
+0a53e97937ae6fee0523cb980b4db874d3950f5ca823e99e849ec9723db5701c  combined-registry-attribute-core/current-2/serialization/sensor_micro/base/sample.json
+14da7cd8560a8f2946287cdf1c7da1897d5c9a472d346851c3b15f14985c8a1e  combined-registry-attribute-core/current-2/serialization/sensor_micro/base/tukey.json
+7ec2a49ce4ced0e9c3f1e30853291da13b5dbab719bdab7fb39143d96a820f77  combined-registry-attribute-core/current-2/serialization/sensor_micro/new/benchmark.json
+0ab227a9d9bae5f202d5546feabce5290a1183fa53d7b8436cfdb52866e35f8a  combined-registry-attribute-core/current-2/serialization/sensor_micro/new/estimates.json
+0a53e97937ae6fee0523cb980b4db874d3950f5ca823e99e849ec9723db5701c  combined-registry-attribute-core/current-2/serialization/sensor_micro/new/sample.json
+14da7cd8560a8f2946287cdf1c7da1897d5c9a472d346851c3b15f14985c8a1e  combined-registry-attribute-core/current-2/serialization/sensor_micro/new/tukey.json
+c3678c108363c0cd7d550a46af06fcc3b89427ba5efc0ceab64fb96c60bcc33a  combined-registry-attribute-core/current-2.txt
+9667d37e0e18ff513058d0313b6d779a645c1a2e2d37ad09f1d44420f1f11cbc  combined-registry-attribute-core/current-build.txt
+a73a0247ac41e366eb762eb403780712b9132618b99e02b49fe6ded9862f65c5  combined-registry-attribute-core/current.lock
+543d6b07b2f53e0773ee0c93580197fb497083e93cc525333a822770fa5372b9  combined-registry-attribute-core/harness.rs
+f348f7acb4983b2e21666a1ea4bcdd5faff6f87ac70ab7e913dbaae526a3ae47  combined-registry-attribute-core/metadata.json
+479ce83e26332c3366ce22817bae80dc22d62191b380dd9476ef02b2740f21cb  combined-registry-attribute-core/summary.json
+361ceb1ad031e27d95c89c3830bc273109487f9f9d06dffe20c07e5ae26de9e2  combined-registry-attribute.patch
+c8fc1e0d2f409d969bd0052f4a143d972369c08ade66a2ced81b474a623859ac  compact-frames-screen.tar.gz
+7d10e91036fe40e63bd43c83b0450611bd9ee8216bf14cda6f488c9aafa404a7  compact-frames-tests.txt
+a1517c48c784c62cc4c9326bb4e2869b4ad461c9264e5c0c375870d860fffa4d  compact-frames.patch
+09f54b5a5d6dc3c5187dbe8aca8372cbd8917ab9f24dd1839e990be0602f8382  isolated-mixed-writer-tests.txt
+efc08c6b9efd8fd45d57accf1f22c3714d66aff1fd88c9ca3a0e778559be70bf  manifest.json
+94ec8f6088a9f4b9321dee4d8a3498eec4e52be0bdbaab8b7d080c83d02a931f  quality-gate-missing-tsc.txt
+d4aa026ec0307f81a049e2c82ade47cc6014e2f0ed54de2016185a6eab7bc618  quality-gate.txt
+aef25aeb15c598d76da91aefa4405c1ae36c6390e7ec1bca4000818d9ba00c9d  read-fixed-guard.patch
+aef1b2005dd39b1b39b6134ea4ce866f6f45437f93ffc488b39443f3b5951e42  read-fixed-guard.tar.gz
+a76e000ad3d29edcef0acbf6f4a3f626859df52c9a9ba36f10f45416d758c0ae  rejected-shared-workspace-test-preflight.txt
+bdc64991185aede07e5c420fe627d4d57e3a8ede2ee0d9603929ce3de13e64dc  variant-registry-all-empty-screen.tar.gz
+57d43a66f55eef5fb613c36254c3cdc2bb6ee13dc2b51ff6b7334c345e86978b  variant-registry-diagnostics.tar.gz
+50c8aaf98b60dd2894ec41f77a8e6f53fabfd35e24b21a56eb74a346da827713  variant-registry-final-core.tar.gz
+b726f55cabb2400d42c45bdc7d1f740f637c5ff286f5a6f63ea17c1135807d3d  variant-registry-final-dispatch.tar.gz
+6cc4d4cf265fc32fa8d60e263e5993360546daee19e3c965499b2c0174d1faf7  variant-registry-screen.tar.gz
+46653b2008d1cb10d5791d151e60688ed2ee90fe05d2ff2bfd8a41cfb8e55d45  variant-registry.patch
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/attribute-fast-final-core.tar.gz b/research/data/runtime-followups-2026-10-03/performance-experiments/attribute-fast-final-core.tar.gz
new file mode 100644
index 0000000..d45ee5c
Binary files /dev/null and b/research/data/runtime-followups-2026-10-03/performance-experiments/attribute-fast-final-core.tar.gz differ
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/attribute-fast-focused-tests.txt b/research/data/runtime-followups-2026-10-03/performance-experiments/attribute-fast-focused-tests.txt
new file mode 100644
index 0000000..f2829dc
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/attribute-fast-focused-tests.txt
@@ -0,0 +1,67 @@
+memcap: <=7740 MiB (60% of 12900 MiB available) [systemd MemoryMax, swap off]
+   Compiling polyxml v0.34.6 (/home/bailey/github/polyxml-attribute-fast/crates/polyxml-core)
+    Finished `test` profile [unoptimized + debuginfo] target(s) in 1.68s
+     Running tests/test_any_attribute.rs (/home/bailey/github/PolyXML/target/followup-borrow-verification/debug/deps/test_any_attribute-f8564805a9b9d00f)
+
+running 1 test
+test test_any_attribute_schema_parser_and_runtime_roundtrip ... ok
+
+test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_any_element.rs (/home/bailey/github/PolyXML/target/followup-borrow-verification/debug/deps/test_any_element-48a6e5ab2c28f2fe)
+
+running 2 tests
+test test_any_element_go_codegen ... ok
+test test_any_element_schema_parser_and_runtime_roundtrip ... ok
+
+test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_runtime_fast_paths.rs (/home/bailey/github/PolyXML/target/followup-borrow-verification/debug/deps/test_runtime_fast_paths-cb1357dd8af777c0)
+
+running 6 tests
+test repeated_lexical_lists_keep_whitespace_validation ... ok
+test repeated_nested_records_validate_their_own_lexical_lists ... ok
+test lexical_list_formatting_preserves_escaping_empty_lists_and_long_numbers ... ok
+test indexed_scalar_state_preserves_enum_pattern_and_split_text ... ok
+test cached_patterns_keep_raw_restriction_and_trimmed_pattern_semantics ... ok
+test unified_scalar_state_keeps_mixed_branch_order_nil_and_nested_frames ... ok
+
+test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_security.rs (/home/bailey/github/PolyXML/target/followup-borrow-verification/debug/deps/test_security-e324fcc17a7a8524)
+
+running 6 tests
+test test_malformed_unclosed_cdata_rejection ... ok
+test test_cdata_section_handling ... ok
+test test_numeric_character_references ... ok
+test test_max_depth_recursion_limit ... ok
+test test_xml_entity_roundtrip_escaping ... ok
+test unsupported_general_entities_are_rejected ... ok
+
+test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_value_constraints.rs (/home/bailey/github/PolyXML/target/followup-borrow-verification/debug/deps/test_value_constraints-22fd91427282898a)
+
+running 2 tests
+test fixed_constraints_cover_input_and_output_in_value_space ... ok
+test repeated_particle_cardinality_belongs_to_the_group ... ok
+
+test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_xsi_type.rs (/home/bailey/github/PolyXML/target/followup-borrow-verification/debug/deps/test_xsi_type-c45053350e445953)
+
+running 11 tests
+test abstract_type_without_derivations_errors ... ok
+test plain_type_attribute_is_not_mistaken_for_dispatch ... ok
+test from_ir_flattens_base_fields_and_registers_variants ... ok
+test abstract_type_requires_concrete_selector ... ok
+test iterparse_dispatches_each_streamed_item ... ok
+test nil_abstract_complex_type_skips_concrete_dispatch ... ok
+test nested_xsi_type_dispatch_and_round_trip ... ok
+test unknown_xsi_type_on_abstract_type_errors ... ok
+test root_xsi_type_dispatch_including_empty_element ... ok
+test variant_serialization_requires_namespaces ... ok
+test xsi_type_resolves_namespace_inherited_from_parent ... ok
+
+test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/attribute-fast-screen.tar.gz b/research/data/runtime-followups-2026-10-03/performance-experiments/attribute-fast-screen.tar.gz
new file mode 100644
index 0000000..b363083
Binary files /dev/null and b/research/data/runtime-followups-2026-10-03/performance-experiments/attribute-fast-screen.tar.gz differ
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/attribute-fast.patch b/research/data/runtime-followups-2026-10-03/performance-experiments/attribute-fast.patch
new file mode 100644
index 0000000..1150e94
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/attribute-fast.patch
@@ -0,0 +1,34 @@
+diff --git a/crates/polyxml-core/src/parser.rs b/crates/polyxml-core/src/parser.rs
+index afc027e..43f50c0 100644
+--- a/crates/polyxml-core/src/parser.rs
++++ b/crates/polyxml-core/src/parser.rs
+@@ -154,6 +154,9 @@ fn parse_field_scalar(
+ pub struct XmlDeserializer;
+ 
+ fn is_nil_element(e: &BytesStart) -> bool {
++    if e.attributes_raw().is_empty() {
++        return false;
++    }
+     for attr in e.attributes().flatten() {
+         let raw_key = attr.key.as_ref();
+         if raw_key == "xmlns" || raw_key.starts_with("xmlns:") {
+@@ -172,6 +175,9 @@ fn is_nil_element(e: &BytesStart) -> bool {
+ /// Extend inherited namespace bindings for this element. Elements without
+ /// declarations share the existing map.
+ fn namespace_scope(parent: &NamespaceScope, e: &BytesStart) -> NamespaceScope {
++    if e.attributes_raw().is_empty() {
++        return Arc::clone(parent);
++    }
+     let mut scope = None;
+     for attr in e.attributes().flatten() {
+         let key = attr.key.as_ref();
+@@ -995,6 +1001,9 @@ impl XmlDeserializer {
+     }
+ 
+     pub(crate) fn parse_attributes(e: &BytesStart, frame: &mut StackFrame) -> Result<()> {
++        if frame.schema.attribute_map.is_empty() && frame.schema.any_attribute_field.is_none() {
++            return Ok(());
++        }
+         let mut any_attrs: Option<HashMap<String, PolyValue>> = None;
+         for attr in e.attributes().flatten() {
+             let raw_key = attr.key.as_ref();
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/borrow-schema-screen.tar.gz b/research/data/runtime-followups-2026-10-03/performance-experiments/borrow-schema-screen.tar.gz
new file mode 100644
index 0000000..887771b
Binary files /dev/null and b/research/data/runtime-followups-2026-10-03/performance-experiments/borrow-schema-screen.tar.gz differ
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/borrow-schema-tests.txt b/research/data/runtime-followups-2026-10-03/performance-experiments/borrow-schema-tests.txt
new file mode 100644
index 0000000..0d9d7da
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/borrow-schema-tests.txt
@@ -0,0 +1,68 @@
+memcap: <=7716 MiB (60% of 12861 MiB available) [systemd MemoryMax, swap off]
+   Compiling polyxml v0.34.6 (/home/bailey/github/polyxml-borrow-schema/crates/polyxml-core)
+   Compiling phf v0.14.0
+    Finished `test` profile [unoptimized + debuginfo] target(s) in 8.41s
+     Running tests/test_any_attribute.rs (/home/bailey/github/PolyXML/target/followup-borrow-verification/debug/deps/test_any_attribute-f8564805a9b9d00f)
+
+running 1 test
+test test_any_attribute_schema_parser_and_runtime_roundtrip ... ok
+
+test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_any_element.rs (/home/bailey/github/PolyXML/target/followup-borrow-verification/debug/deps/test_any_element-48a6e5ab2c28f2fe)
+
+running 2 tests
+test test_any_element_go_codegen ... ok
+test test_any_element_schema_parser_and_runtime_roundtrip ... ok
+
+test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_runtime_fast_paths.rs (/home/bailey/github/PolyXML/target/followup-borrow-verification/debug/deps/test_runtime_fast_paths-cb1357dd8af777c0)
+
+running 6 tests
+test repeated_nested_records_validate_their_own_lexical_lists ... ok
+test repeated_lexical_lists_keep_whitespace_validation ... ok
+test lexical_list_formatting_preserves_escaping_empty_lists_and_long_numbers ... ok
+test indexed_scalar_state_preserves_enum_pattern_and_split_text ... ok
+test cached_patterns_keep_raw_restriction_and_trimmed_pattern_semantics ... ok
+test unified_scalar_state_keeps_mixed_branch_order_nil_and_nested_frames ... ok
+
+test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_security.rs (/home/bailey/github/PolyXML/target/followup-borrow-verification/debug/deps/test_security-e324fcc17a7a8524)
+
+running 6 tests
+test test_malformed_unclosed_cdata_rejection ... ok
+test test_cdata_section_handling ... ok
+test test_numeric_character_references ... ok
+test unsupported_general_entities_are_rejected ... ok
+test test_xml_entity_roundtrip_escaping ... ok
+test test_max_depth_recursion_limit ... ok
+
+test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_value_constraints.rs (/home/bailey/github/PolyXML/target/followup-borrow-verification/debug/deps/test_value_constraints-22fd91427282898a)
+
+running 2 tests
+test fixed_constraints_cover_input_and_output_in_value_space ... ok
+test repeated_particle_cardinality_belongs_to_the_group ... ok
+
+test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_xsi_type.rs (/home/bailey/github/PolyXML/target/followup-borrow-verification/debug/deps/test_xsi_type-c45053350e445953)
+
+running 11 tests
+test abstract_type_without_derivations_errors ... ok
+test plain_type_attribute_is_not_mistaken_for_dispatch ... ok
+test abstract_type_requires_concrete_selector ... ok
+test nil_abstract_complex_type_skips_concrete_dispatch ... ok
+test from_ir_flattens_base_fields_and_registers_variants ... ok
+test xsi_type_resolves_namespace_inherited_from_parent ... ok
+test variant_serialization_requires_namespaces ... ok
+test iterparse_dispatches_each_streamed_item ... ok
+test unknown_xsi_type_on_abstract_type_errors ... ok
+test root_xsi_type_dispatch_including_empty_element ... ok
+test nested_xsi_type_dispatch_and_round_trip ... ok
+
+test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/borrow-schema.patch b/research/data/runtime-followups-2026-10-03/performance-experiments/borrow-schema.patch
new file mode 100644
index 0000000..ee99ac2
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/borrow-schema.patch
@@ -0,0 +1,59 @@
+diff --git a/crates/polyxml-core/src/parser.rs b/crates/polyxml-core/src/parser.rs
+index afc027e..5f2a8e0 100644
+--- a/crates/polyxml-core/src/parser.rs
++++ b/crates/polyxml-core/src/parser.rs
+@@ -470,7 +470,7 @@ impl XmlDeserializer {
+                     let local_name = e.local_name();
+                     let is_nil = is_nil_element(e);
+ 
+-                    let current_schema = Arc::clone(&stack.last().unwrap().schema);
++                    let current_schema = &stack.last().unwrap().schema;
+                     if let Some(&field_idx) = current_schema
+                         .element_map
+                         .get(local_name.as_ref().as_bytes())
+@@ -549,10 +549,11 @@ impl XmlDeserializer {
+                         {
+                             let branch = &mixed.branches[branch_index];
+                             if is_nil {
++                                let kind = branch.variant_name.clone();
+                                 stack
+                                     .last_mut()
+                                     .unwrap()
+-                                    .push_mixed_item(&branch.variant_name, PolyValue::Null);
++                                    .push_mixed_item(kind, PolyValue::Null);
+                                 unknown_depth = 1;
+                             } else {
+                                 match &branch.val_type {
+@@ -654,7 +655,7 @@ impl XmlDeserializer {
+                     let scope = namespace_scope(namespace_stack.last().unwrap(), e);
+                     let is_nil = is_nil_element(e);
+ 
+-                    let current_schema = Arc::clone(&stack.last().unwrap().schema);
++                    let current_schema = &stack.last().unwrap().schema;
+                     if let Some(&field_idx) = current_schema
+                         .element_map
+                         .get(local_name.as_ref().as_bytes())
+@@ -732,10 +733,8 @@ impl XmlDeserializer {
+                                     ValueType::List(_) => PolyValue::Null,
+                                 }
+                             };
+-                            stack
+-                                .last_mut()
+-                                .unwrap()
+-                                .push_mixed_item(&branch.variant_name, value);
++                            let kind = branch.variant_name.clone();
++                            stack.last_mut().unwrap().push_mixed_item(kind, value);
+                         }
+                     } else if let Some(any_idx) = current_schema.any_element_field {
+                         let (ns, local) = resolve_element_qname(e, &scope);
+@@ -771,8 +770,9 @@ impl XmlDeserializer {
+                             obj.insert("text".to_string(), PolyValue::String(String::new()));
+                             obj.insert("children".to_string(), PolyValue::List(Vec::new()));
+                             let poly_obj = PolyValue::Object(obj);
++                            let repeated = matches!(any_field.val_type, ValueType::List(_));
+                             let parent_frame = stack.last_mut().unwrap();
+-                            if matches!(any_field.val_type, ValueType::List(_)) {
++                            if repeated {
+                                 parent_frame.push_list_item(any_idx, poly_obj);
+                             } else {
+                                 parent_frame.values[any_idx] = Some(poly_obj);
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0.txt b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0.txt
new file mode 100644
index 0000000..b3b47b8
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0.txt
@@ -0,0 +1,65 @@
+memcap: <=7679 MiB (60% of 12798 MiB available) [systemd MemoryMax, swap off]
+Benchmarking deserialization/sensor_micro
+Benchmarking deserialization/sensor_micro: Warming up for 3.0000 s
+Benchmarking deserialization/sensor_micro: Collecting 100 samples in estimated 5.0001 s (5.1M iterations)
+Benchmarking deserialization/sensor_micro: Analyzing
+deserialization/sensor_micro
+                        time:   [972.79 ns 979.23 ns 987.21 ns]
+                        thrpt:  [90.807 MiB/s 91.547 MiB/s 92.153 MiB/s]
+Found 9 outliers among 100 measurements (9.00%)
+  3 (3.00%) high mild
+  6 (6.00%) high severe
+Benchmarking deserialization/catalog_items/1000
+Benchmarking deserialization/catalog_items/1000: Warming up for 3.0000 s
+Benchmarking deserialization/catalog_items/1000: Collecting 100 samples in estimated 7.9475 s (10k iterations)
+Benchmarking deserialization/catalog_items/1000: Analyzing
+deserialization/catalog_items/1000
+                        time:   [786.72 µs 791.17 µs 796.46 µs]
+                        thrpt:  [76.527 MiB/s 77.038 MiB/s 77.474 MiB/s]
+Found 11 outliers among 100 measurements (11.00%)
+  4 (4.00%) high mild
+  7 (7.00%) high severe
+Benchmarking deserialization/catalog_items/10000
+Benchmarking deserialization/catalog_items/10000: Warming up for 3.0000 s
+Benchmarking deserialization/catalog_items/10000: Collecting 100 samples in estimated 5.5476 s (700 iterations)
+Benchmarking deserialization/catalog_items/10000: Analyzing
+deserialization/catalog_items/10000
+                        time:   [7.8591 ms 7.8832 ms 7.9104 ms]
+                        thrpt:  [80.644 MiB/s 80.922 MiB/s 81.170 MiB/s]
+Found 6 outliers among 100 measurements (6.00%)
+  2 (2.00%) high mild
+  4 (4.00%) high severe
+
+Benchmarking serialization/sensor_micro
+Benchmarking serialization/sensor_micro: Warming up for 3.0000 s
+Benchmarking serialization/sensor_micro: Collecting 100 samples in estimated 5.0003 s (22M iterations)
+Benchmarking serialization/sensor_micro: Analyzing
+serialization/sensor_micro
+                        time:   [225.51 ns 226.48 ns 227.61 ns]
+                        thrpt:  [393.85 MiB/s 395.81 MiB/s 397.52 MiB/s]
+Found 13 outliers among 100 measurements (13.00%)
+  4 (4.00%) high mild
+  9 (9.00%) high severe
+Benchmarking serialization/catalog_items/1000
+Benchmarking serialization/catalog_items/1000: Warming up for 3.0000 s
+Benchmarking serialization/catalog_items/1000: Collecting 100 samples in estimated 5.3892 s (30k iterations)
+Benchmarking serialization/catalog_items/1000: Analyzing
+serialization/catalog_items/1000
+                        time:   [177.68 µs 178.61 µs 179.73 µs]
+                        thrpt:  [336.48 MiB/s 338.58 MiB/s 340.34 MiB/s]
+Found 11 outliers among 100 measurements (11.00%)
+  3 (3.00%) high mild
+  8 (8.00%) high severe
+Benchmarking serialization/catalog_items/10000
+Benchmarking serialization/catalog_items/10000: Warming up for 3.0000 s
+
+Warning: Unable to complete 100 samples in 5.0s. You may wish to increase target time to 9.1s, enable flat sampling, or reduce sample count to 50.
+Benchmarking serialization/catalog_items/10000: Collecting 100 samples in estimated 9.1228 s (5050 iterations)
+Benchmarking serialization/catalog_items/10000: Analyzing
+serialization/catalog_items/10000
+                        time:   [1.7793 ms 1.7854 ms 1.7924 ms]
+                        thrpt:  [353.24 MiB/s 354.62 MiB/s 355.84 MiB/s]
+Found 8 outliers among 100 measurements (8.00%)
+  5 (5.00%) high mild
+  3 (3.00%) high severe
+
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/1000/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/1000/base/benchmark.json
new file mode 100644
index 0000000..2364a25
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/1000/base/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"deserialization","function_id":"catalog_items","value_str":"1000","throughput":{"Bytes":63911},"full_id":"deserialization/catalog_items/1000","directory_name":"deserialization/catalog_items/1000","title":"deserialization/catalog_items/1000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/1000/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/1000/base/estimates.json
new file mode 100644
index 0000000..90d9c75
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/1000/base/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":791295.5965576116,"upper_bound":807947.6041901344},"point_estimate":798960.7753875297,"standard_error":4273.780934670834},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":780731.9299999999,"upper_bound":787563.1849315069},"point_estimate":783947.8251201923,"standard_error":1674.8906584056133},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":6247.412436543911,"upper_bound":14985.897852488499},"point_estimate":10474.853718822145,"standard_error":2087.698964479828},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":786717.9306118542,"upper_bound":796455.5973271026},"point_estimate":791172.0527560218,"standard_error":2496.940309466609},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":24080.619399530628,"upper_bound":58168.59741809627},"point_estimate":43006.41128336148,"standard_error":8656.766444130439}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/1000/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/1000/base/sample.json
new file mode 100644
index 0000000..9fa0fe8
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/1000/base/sample.json
@@ -0,0 +1 @@
+{"sampling_mode":"Linear","iters":[2.0,4.0,6.0,8.0,10.0,12.0,14.0,16.0,18.0,20.0,22.0,24.0,26.0,28.0,30.0,32.0,34.0,36.0,38.0,40.0,42.0,44.0,46.0,48.0,50.0,52.0,54.0,56.0,58.0,60.0,62.0,64.0,66.0,68.0,70.0,72.0,74.0,76.0,78.0,80.0,82.0,84.0,86.0,88.0,90.0,92.0,94.0,96.0,98.0,100.0,102.0,104.0,106.0,108.0,110.0,112.0,114.0,116.0,118.0,120.0,122.0,124.0,126.0,128.0,130.0,132.0,134.0,136.0,138.0,140.0,142.0,144.0,146.0,148.0,150.0,152.0,154.0,156.0,158.0,160.0,162.0,164.0,166.0,168.0,170.0,172.0,174.0,176.0,178.0,180.0,182.0,184.0,186.0,188.0,190.0,192.0,194.0,196.0,198.0,200.0],"times":[1639047.0,3106841.0,4628444.0,6265859.0,8658375.0,9370980.0,11019538.0,12549025.0,14077985.0,16180729.0,19459241.0,23818575.0,20197428.0,22098079.0,23909470.0,25072927.0,26875297.0,35003460.0,29876288.0,32486623.0,43396629.0,36569604.0,38316415.0,39879318.0,39560753.0,40508770.0,42057923.0,43951868.0,46161848.0,47061395.0,48370907.0,50183121.0,53975556.0,52536386.0,54259546.0,55965470.0,59785704.0,59174033.0,60532184.0,62015337.0,64124411.0,65371036.0,67371297.0,68366905.0,69956615.0,71415530.0,72911190.0,74491341.0,78739624.0,78054886.0,80017077.0,83305170.0,82273305.0,98242515.0,85455548.0,87180567.0,88607961.0,90371766.0,91650739.0,94262495.0,96813336.0,96378648.0,103432346.0,99337542.0,101891970.0,102654059.0,106766983.0,109057273.0,106859747.0,108968056.0,117477313.0,120151423.0,114984225.0,122277702.0,119996197.0,121364399.0,126809252.0,134369112.0,122837804.0,126866752.0,132219683.0,129774766.0,129610636.0,131027051.0,132424464.0,136113069.0,136928876.0,138631013.0,138722946.0,140630707.0,144315941.0,143201374.0,144676101.0,146278187.0,150223700.0,150238712.0,150898526.0,152580332.0,154136133.0,158155181.0]}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/1000/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/1000/base/tukey.json
new file mode 100644
index 0000000..7220009
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/1000/base/tukey.json
@@ -0,0 +1 @@
+[716261.8497114463,747225.339844325,829794.6468653347,860758.1369982134]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/1000/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/1000/new/benchmark.json
new file mode 100644
index 0000000..2364a25
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/1000/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"deserialization","function_id":"catalog_items","value_str":"1000","throughput":{"Bytes":63911},"full_id":"deserialization/catalog_items/1000","directory_name":"deserialization/catalog_items/1000","title":"deserialization/catalog_items/1000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/1000/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/1000/new/estimates.json
new file mode 100644
index 0000000..90d9c75
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/1000/new/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":791295.5965576116,"upper_bound":807947.6041901344},"point_estimate":798960.7753875297,"standard_error":4273.780934670834},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":780731.9299999999,"upper_bound":787563.1849315069},"point_estimate":783947.8251201923,"standard_error":1674.8906584056133},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":6247.412436543911,"upper_bound":14985.897852488499},"point_estimate":10474.853718822145,"standard_error":2087.698964479828},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":786717.9306118542,"upper_bound":796455.5973271026},"point_estimate":791172.0527560218,"standard_error":2496.940309466609},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":24080.619399530628,"upper_bound":58168.59741809627},"point_estimate":43006.41128336148,"standard_error":8656.766444130439}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/1000/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/1000/new/sample.json
new file mode 100644
index 0000000..9fa0fe8
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/1000/new/sample.json
@@ -0,0 +1 @@
+{"sampling_mode":"Linear","iters":[2.0,4.0,6.0,8.0,10.0,12.0,14.0,16.0,18.0,20.0,22.0,24.0,26.0,28.0,30.0,32.0,34.0,36.0,38.0,40.0,42.0,44.0,46.0,48.0,50.0,52.0,54.0,56.0,58.0,60.0,62.0,64.0,66.0,68.0,70.0,72.0,74.0,76.0,78.0,80.0,82.0,84.0,86.0,88.0,90.0,92.0,94.0,96.0,98.0,100.0,102.0,104.0,106.0,108.0,110.0,112.0,114.0,116.0,118.0,120.0,122.0,124.0,126.0,128.0,130.0,132.0,134.0,136.0,138.0,140.0,142.0,144.0,146.0,148.0,150.0,152.0,154.0,156.0,158.0,160.0,162.0,164.0,166.0,168.0,170.0,172.0,174.0,176.0,178.0,180.0,182.0,184.0,186.0,188.0,190.0,192.0,194.0,196.0,198.0,200.0],"times":[1639047.0,3106841.0,4628444.0,6265859.0,8658375.0,9370980.0,11019538.0,12549025.0,14077985.0,16180729.0,19459241.0,23818575.0,20197428.0,22098079.0,23909470.0,25072927.0,26875297.0,35003460.0,29876288.0,32486623.0,43396629.0,36569604.0,38316415.0,39879318.0,39560753.0,40508770.0,42057923.0,43951868.0,46161848.0,47061395.0,48370907.0,50183121.0,53975556.0,52536386.0,54259546.0,55965470.0,59785704.0,59174033.0,60532184.0,62015337.0,64124411.0,65371036.0,67371297.0,68366905.0,69956615.0,71415530.0,72911190.0,74491341.0,78739624.0,78054886.0,80017077.0,83305170.0,82273305.0,98242515.0,85455548.0,87180567.0,88607961.0,90371766.0,91650739.0,94262495.0,96813336.0,96378648.0,103432346.0,99337542.0,101891970.0,102654059.0,106766983.0,109057273.0,106859747.0,108968056.0,117477313.0,120151423.0,114984225.0,122277702.0,119996197.0,121364399.0,126809252.0,134369112.0,122837804.0,126866752.0,132219683.0,129774766.0,129610636.0,131027051.0,132424464.0,136113069.0,136928876.0,138631013.0,138722946.0,140630707.0,144315941.0,143201374.0,144676101.0,146278187.0,150223700.0,150238712.0,150898526.0,152580332.0,154136133.0,158155181.0]}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/1000/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/1000/new/tukey.json
new file mode 100644
index 0000000..7220009
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/1000/new/tukey.json
@@ -0,0 +1 @@
+[716261.8497114463,747225.339844325,829794.6468653347,860758.1369982134]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/10000/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/10000/base/benchmark.json
new file mode 100644
index 0000000..8e57074
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/10000/base/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"deserialization","function_id":"catalog_items","value_str":"10000","throughput":{"Bytes":668911},"full_id":"deserialization/catalog_items/10000","directory_name":"deserialization/catalog_items/10000","title":"deserialization/catalog_items/10000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/10000/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/10000/base/estimates.json
new file mode 100644
index 0000000..631ccd5
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/10000/base/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":7859090.189785714,"upper_bound":7910400.333928573},"point_estimate":7883168.992857142,"standard_error":13119.369239789283},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":7827300.77857143,"upper_bound":7865048.571428572},"point_estimate":7843225.785714285,"standard_error":9976.652260293558},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":49981.304412655256,"upper_bound":92994.81254901185},"point_estimate":66344.97212214119,"standard_error":11261.507809775367},"slope":null,"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":87903.4970176678,"upper_bound":168912.59731974255},"point_estimate":131615.46648096017,"standard_error":20744.139076902182}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/10000/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/10000/base/sample.json
new file mode 100644
index 0000000..e2c4d17
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/10000/base/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/10000/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/10000/base/tukey.json
new file mode 100644
index 0000000..22b007d
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/10000/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/10000/new/benchmark.json
new file mode 100644
index 0000000..8e57074
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/10000/new/benchmark.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/10000/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/10000/new/estimates.json
new file mode 100644
index 0000000..631ccd5
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/10000/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/10000/new/sample.json
new file mode 100644
index 0000000..e2c4d17
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/10000/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/catalog_items/10000/new/tukey.json
new file mode 100644
index 0000000..22b007d
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@@ -0,0 +1 @@
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/sensor_micro/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/sensor_micro/base/benchmark.json
new file mode 100644
index 0000000..8822cdb
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/sensor_micro/base/benchmark.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/sensor_micro/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/sensor_micro/base/estimates.json
new file mode 100644
index 0000000..3c9c851
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/sensor_micro/base/estimates.json
@@ -0,0 +1 @@
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/sensor_micro/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/sensor_micro/base/sample.json
new file mode 100644
index 0000000..daa8815
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/sensor_micro/base/sample.json
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/sensor_micro/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/sensor_micro/base/tukey.json
new file mode 100644
index 0000000..b45ea9c
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/sensor_micro/base/tukey.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/sensor_micro/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/sensor_micro/new/benchmark.json
new file mode 100644
index 0000000..8822cdb
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/sensor_micro/new/benchmark.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/sensor_micro/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/sensor_micro/new/estimates.json
new file mode 100644
index 0000000..3c9c851
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/sensor_micro/new/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/sensor_micro/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/sensor_micro/new/sample.json
new file mode 100644
index 0000000..daa8815
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/sensor_micro/new/sample.json
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/sensor_micro/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/sensor_micro/new/tukey.json
new file mode 100644
index 0000000..b45ea9c
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/deserialization/sensor_micro/new/tukey.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/1000/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/1000/base/benchmark.json
new file mode 100644
index 0000000..077740d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/1000/base/benchmark.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/1000/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/1000/base/estimates.json
new file mode 100644
index 0000000..d390ad6
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/1000/base/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/1000/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/1000/base/sample.json
new file mode 100644
index 0000000..259d8f8
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/1000/base/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/1000/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/1000/base/tukey.json
new file mode 100644
index 0000000..baa2bae
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/1000/base/tukey.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/1000/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/1000/new/benchmark.json
new file mode 100644
index 0000000..077740d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/1000/new/benchmark.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/1000/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/1000/new/estimates.json
new file mode 100644
index 0000000..d390ad6
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/1000/new/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/1000/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/1000/new/sample.json
new file mode 100644
index 0000000..259d8f8
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/1000/new/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/1000/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/1000/new/tukey.json
new file mode 100644
index 0000000..baa2bae
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/1000/new/tukey.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/10000/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/10000/base/benchmark.json
new file mode 100644
index 0000000..108dc8d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/10000/base/benchmark.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/10000/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/10000/base/estimates.json
new file mode 100644
index 0000000..c49b27e
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/10000/base/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/10000/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/10000/base/sample.json
new file mode 100644
index 0000000..8b8bde4
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/10000/base/sample.json
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/10000/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/10000/base/tukey.json
new file mode 100644
index 0000000..c8abc2a
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/10000/base/tukey.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/10000/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/10000/new/benchmark.json
new file mode 100644
index 0000000..108dc8d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/10000/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"serialization","function_id":"catalog_items","value_str":"10000","throughput":{"Bytes":663911},"full_id":"serialization/catalog_items/10000","directory_name":"serialization/catalog_items/10000","title":"serialization/catalog_items/10000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/10000/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/10000/new/estimates.json
new file mode 100644
index 0000000..c49b27e
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/10000/new/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/10000/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/10000/new/sample.json
new file mode 100644
index 0000000..8b8bde4
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/10000/new/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/10000/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/10000/new/tukey.json
new file mode 100644
index 0000000..c8abc2a
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/catalog_items/10000/new/tukey.json
@@ -0,0 +1 @@
+[1709054.4701449275,1738644.8875905797,1817552.6674456522,1847143.0848913044]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/sensor_micro/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/sensor_micro/base/benchmark.json
new file mode 100644
index 0000000..9ae1c29
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/sensor_micro/base/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"serialization","function_id":"sensor_micro","value_str":null,"throughput":{"Bytes":94},"full_id":"serialization/sensor_micro","directory_name":"serialization/sensor_micro","title":"serialization/sensor_micro"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/sensor_micro/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/sensor_micro/base/estimates.json
new file mode 100644
index 0000000..8e8c4e0
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/sensor_micro/base/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/sensor_micro/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/sensor_micro/base/sample.json
new file mode 100644
index 0000000..2c5e633
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/sensor_micro/base/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/sensor_micro/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/sensor_micro/base/tukey.json
new file mode 100644
index 0000000..41f1736
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/sensor_micro/base/tukey.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/sensor_micro/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/sensor_micro/new/benchmark.json
new file mode 100644
index 0000000..9ae1c29
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/sensor_micro/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"serialization","function_id":"sensor_micro","value_str":null,"throughput":{"Bytes":94},"full_id":"serialization/sensor_micro","directory_name":"serialization/sensor_micro","title":"serialization/sensor_micro"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/sensor_micro/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/sensor_micro/new/estimates.json
new file mode 100644
index 0000000..8e8c4e0
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/sensor_micro/new/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":225.89919133709734,"upper_bound":233.20354532167548},"point_estimate":228.995417607084,"standard_error":1.8917378873143864},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":224.23189409682138,"upper_bound":225.1442476941207},"point_estimate":224.68469179332263,"standard_error":0.25367840619222504},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":1.5449557496727158,"upper_bound":2.7727541072202952},"point_estimate":2.1523788874323913,"standard_error":0.31336661016376044},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":225.51339194778174,"upper_bound":227.6149005520645},"point_estimate":226.48356285240314,"standard_error":0.5388032087959043},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":4.784838687704334,"upper_bound":29.074909548335103},"point_estimate":19.04810146849849,"standard_error":6.536263469833669}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/sensor_micro/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/sensor_micro/new/sample.json
new file mode 100644
index 0000000..2c5e633
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/sensor_micro/new/sample.json
@@ -0,0 +1 @@
+{"sampling_mode":"Linear","iters":[4331.0,8662.0,12993.0,17324.0,21655.0,25986.0,30317.0,34648.0,38979.0,43310.0,47641.0,51972.0,56303.0,60634.0,64965.0,69296.0,73627.0,77958.0,82289.0,86620.0,90951.0,95282.0,99613.0,103944.0,108275.0,112606.0,116937.0,121268.0,125599.0,129930.0,134261.0,138592.0,142923.0,147254.0,151585.0,155916.0,160247.0,164578.0,168909.0,173240.0,177571.0,181902.0,186233.0,190564.0,194895.0,199226.0,203557.0,207888.0,212219.0,216550.0,220881.0,225212.0,229543.0,233874.0,238205.0,242536.0,246867.0,251198.0,255529.0,259860.0,264191.0,268522.0,272853.0,277184.0,281515.0,285846.0,290177.0,294508.0,298839.0,303170.0,307501.0,311832.0,316163.0,320494.0,324825.0,329156.0,333487.0,337818.0,342149.0,346480.0,350811.0,355142.0,359473.0,363804.0,368135.0,372466.0,376797.0,381128.0,385459.0,389790.0,394121.0,398452.0,402783.0,407114.0,411445.0,415776.0,420107.0,424438.0,428769.0,433100.0],"times":[1071229.0,1920153.0,2920697.0,3877782.0,4889836.0,5767261.0,6725269.0,7746496.0,8601055.0,9695428.0,10685917.0,11961780.0,12683561.0,13519958.0,22884606.0,24907168.0,16472561.0,17331464.0,18367535.0,19479481.0,20273659.0,21884336.0,22502450.0,23308768.0,24875748.0,25453837.0,26469098.0,27360724.0,28039606.0,28944247.0,29918968.0,30921406.0,32047895.0,33934328.0,34518687.0,35735420.0,39470199.0,37088417.0,37703667.0,38582417.0,39681553.0,40914722.0,41758359.0,42612831.0,43466540.0,44776645.0,45387513.0,51837315.0,51787577.0,48514431.0,49679689.0,51050838.0,52635636.0,52299610.0,55860175.0,57677297.0,55374810.0,61763254.0,57644289.0,58489757.0,59063574.0,59907939.0,60962470.0,61966615.0,63196541.0,64893792.0,65396792.0,66288271.0,67194044.0,68091906.0,68638754.0,70586530.0,71811893.0,73482580.0,72689347.0,76642817.0,75039652.0,75230963.0,76412280.0,77677816.0,78153073.0,79159107.0,80979555.0,81644569.0,87234389.0,83920726.0,87444370.0,84956203.0,89050708.0,86881490.0,88624773.0,89403240.0,92009424.0,91255682.0,92875530.0,93969441.0,94362907.0,96060014.0,96215786.0,96833660.0]}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/sensor_micro/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/sensor_micro/new/tukey.json
new file mode 100644
index 0000000..41f1736
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-0/serialization/sensor_micro/new/tukey.json
@@ -0,0 +1 @@
+[214.51103585763067,218.98452168836673,230.91381723699624,235.38730306773232]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1.txt b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1.txt
new file mode 100644
index 0000000..45d4835
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1.txt
@@ -0,0 +1,65 @@
+memcap: <=7717 MiB (60% of 12862 MiB available) [systemd MemoryMax, swap off]
+Benchmarking deserialization/sensor_micro
+Benchmarking deserialization/sensor_micro: Warming up for 3.0000 s
+Benchmarking deserialization/sensor_micro: Collecting 100 samples in estimated 5.0029 s (5.2M iterations)
+Benchmarking deserialization/sensor_micro: Analyzing
+deserialization/sensor_micro
+                        time:   [968.69 ns 976.79 ns 987.98 ns]
+                        thrpt:  [90.736 MiB/s 91.775 MiB/s 92.543 MiB/s]
+Found 10 outliers among 100 measurements (10.00%)
+  3 (3.00%) high mild
+  7 (7.00%) high severe
+Benchmarking deserialization/catalog_items/1000
+Benchmarking deserialization/catalog_items/1000: Warming up for 3.0000 s
+Benchmarking deserialization/catalog_items/1000: Collecting 100 samples in estimated 7.9453 s (10k iterations)
+Benchmarking deserialization/catalog_items/1000: Analyzing
+deserialization/catalog_items/1000
+                        time:   [783.14 µs 786.22 µs 789.79 µs]
+                        thrpt:  [77.173 MiB/s 77.523 MiB/s 77.828 MiB/s]
+Found 11 outliers among 100 measurements (11.00%)
+  4 (4.00%) high mild
+  7 (7.00%) high severe
+Benchmarking deserialization/catalog_items/10000
+Benchmarking deserialization/catalog_items/10000: Warming up for 3.0000 s
+Benchmarking deserialization/catalog_items/10000: Collecting 100 samples in estimated 5.5974 s (700 iterations)
+Benchmarking deserialization/catalog_items/10000: Analyzing
+deserialization/catalog_items/10000
+                        time:   [7.9658 ms 8.0215 ms 8.0955 ms]
+                        thrpt:  [78.800 MiB/s 79.526 MiB/s 80.083 MiB/s]
+Found 11 outliers among 100 measurements (11.00%)
+  7 (7.00%) high mild
+  4 (4.00%) high severe
+
+Benchmarking serialization/sensor_micro
+Benchmarking serialization/sensor_micro: Warming up for 3.0000 s
+Benchmarking serialization/sensor_micro: Collecting 100 samples in estimated 5.0004 s (22M iterations)
+Benchmarking serialization/sensor_micro: Analyzing
+serialization/sensor_micro
+                        time:   [224.98 ns 225.82 ns 226.85 ns]
+                        thrpt:  [395.18 MiB/s 396.97 MiB/s 398.46 MiB/s]
+Found 7 outliers among 100 measurements (7.00%)
+  3 (3.00%) high mild
+  4 (4.00%) high severe
+Benchmarking serialization/catalog_items/1000
+Benchmarking serialization/catalog_items/1000: Warming up for 3.0000 s
+Benchmarking serialization/catalog_items/1000: Collecting 100 samples in estimated 5.3948 s (30k iterations)
+Benchmarking serialization/catalog_items/1000: Analyzing
+serialization/catalog_items/1000
+                        time:   [177.46 µs 179.01 µs 181.47 µs]
+                        thrpt:  [333.23 MiB/s 337.82 MiB/s 340.78 MiB/s]
+Found 5 outliers among 100 measurements (5.00%)
+  4 (4.00%) high mild
+  1 (1.00%) high severe
+Benchmarking serialization/catalog_items/10000
+Benchmarking serialization/catalog_items/10000: Warming up for 3.0000 s
+
+Warning: Unable to complete 100 samples in 5.0s. You may wish to increase target time to 9.0s, enable flat sampling, or reduce sample count to 50.
+Benchmarking serialization/catalog_items/10000: Collecting 100 samples in estimated 9.0262 s (5050 iterations)
+Benchmarking serialization/catalog_items/10000: Analyzing
+serialization/catalog_items/10000
+                        time:   [1.7859 ms 1.7962 ms 1.8077 ms]
+                        thrpt:  [350.26 MiB/s 352.50 MiB/s 354.54 MiB/s]
+Found 8 outliers among 100 measurements (8.00%)
+  5 (5.00%) high mild
+  3 (3.00%) high severe
+
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/1000/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/1000/base/benchmark.json
new file mode 100644
index 0000000..2364a25
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/1000/base/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"deserialization","function_id":"catalog_items","value_str":"1000","throughput":{"Bytes":63911},"full_id":"deserialization/catalog_items/1000","directory_name":"deserialization/catalog_items/1000","title":"deserialization/catalog_items/1000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/1000/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/1000/base/estimates.json
new file mode 100644
index 0000000..8d48c8d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/1000/base/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":782207.1240353667,"upper_bound":789859.4677298237},"point_estimate":785630.0261727816,"standard_error":1968.1546199716377},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":778737.9662162162,"upper_bound":782489.574074074},"point_estimate":780441.2826828344,"standard_error":1087.4168004950347},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":4962.619960926627,"upper_bound":8918.078584200413},"point_estimate":6431.718672335978,"standard_error":1031.8853726054997},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":783140.0148603974,"upper_bound":789789.9847787856},"point_estimate":786220.7930249742,"standard_error":1697.4770484924995},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":9620.881283761588,"upper_bound":28140.397326680883},"point_estimate":19772.883559744798,"standard_error":4901.064311487351}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/1000/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/1000/base/sample.json
new file mode 100644
index 0000000..0f60fdf
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/1000/base/sample.json
@@ -0,0 +1 @@
+{"sampling_mode":"Linear","iters":[2.0,4.0,6.0,8.0,10.0,12.0,14.0,16.0,18.0,20.0,22.0,24.0,26.0,28.0,30.0,32.0,34.0,36.0,38.0,40.0,42.0,44.0,46.0,48.0,50.0,52.0,54.0,56.0,58.0,60.0,62.0,64.0,66.0,68.0,70.0,72.0,74.0,76.0,78.0,80.0,82.0,84.0,86.0,88.0,90.0,92.0,94.0,96.0,98.0,100.0,102.0,104.0,106.0,108.0,110.0,112.0,114.0,116.0,118.0,120.0,122.0,124.0,126.0,128.0,130.0,132.0,134.0,136.0,138.0,140.0,142.0,144.0,146.0,148.0,150.0,152.0,154.0,156.0,158.0,160.0,162.0,164.0,166.0,168.0,170.0,172.0,174.0,176.0,178.0,180.0,182.0,184.0,186.0,188.0,190.0,192.0,194.0,196.0,198.0,200.0],"times":[1576346.0,3252209.0,4614831.0,6229240.0,7818515.0,9661070.0,11076303.0,12459952.0,13935275.0,15701955.0,16947953.0,21608674.0,20085569.0,21999372.0,23240476.0,24799764.0,26302610.0,27911389.0,29736770.0,30885694.0,34365395.0,34003806.0,36551888.0,37275621.0,38796003.0,40476558.0,41889151.0,43487097.0,45270181.0,47069658.0,49331099.0,49619184.0,51479861.0,53204703.0,54865400.0,56160491.0,57349347.0,62144477.0,60386982.0,62540890.0,63700282.0,65268109.0,69547748.0,68331078.0,69429891.0,71539573.0,72790823.0,74282302.0,76687843.0,77936097.0,79326659.0,80826985.0,82178004.0,84508874.0,86389201.0,101121268.0,88171605.0,90763948.0,92308752.0,93848023.0,94955605.0,96640030.0,98396448.0,99769842.0,101773519.0,103305964.0,104391951.0,105634718.0,106987887.0,108882909.0,111138258.0,115091369.0,113193152.0,115265498.0,116511404.0,124177706.0,120955967.0,121259824.0,123338484.0,125507828.0,126819588.0,128870318.0,135322582.0,133698123.0,135778223.0,133764717.0,136227914.0,137260232.0,138137202.0,141219858.0,142025921.0,144798958.0,148319469.0,149136728.0,151128152.0,149021683.0,151952708.0,155258954.0,158037397.0,156867875.0]}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/1000/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/1000/base/tukey.json
new file mode 100644
index 0000000..54f3293
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/1000/base/tukey.json
@@ -0,0 +1 @@
+[750032.3269480518,763285.5926542208,798627.6345373378,811880.9002435067]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/1000/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/1000/new/benchmark.json
new file mode 100644
index 0000000..2364a25
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/1000/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"deserialization","function_id":"catalog_items","value_str":"1000","throughput":{"Bytes":63911},"full_id":"deserialization/catalog_items/1000","directory_name":"deserialization/catalog_items/1000","title":"deserialization/catalog_items/1000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/1000/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/1000/new/estimates.json
new file mode 100644
index 0000000..8d48c8d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/1000/new/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":782207.1240353667,"upper_bound":789859.4677298237},"point_estimate":785630.0261727816,"standard_error":1968.1546199716377},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":778737.9662162162,"upper_bound":782489.574074074},"point_estimate":780441.2826828344,"standard_error":1087.4168004950347},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":4962.619960926627,"upper_bound":8918.078584200413},"point_estimate":6431.718672335978,"standard_error":1031.8853726054997},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":783140.0148603974,"upper_bound":789789.9847787856},"point_estimate":786220.7930249742,"standard_error":1697.4770484924995},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":9620.881283761588,"upper_bound":28140.397326680883},"point_estimate":19772.883559744798,"standard_error":4901.064311487351}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/1000/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/1000/new/sample.json
new file mode 100644
index 0000000..0f60fdf
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/1000/new/sample.json
@@ -0,0 +1 @@
+{"sampling_mode":"Linear","iters":[2.0,4.0,6.0,8.0,10.0,12.0,14.0,16.0,18.0,20.0,22.0,24.0,26.0,28.0,30.0,32.0,34.0,36.0,38.0,40.0,42.0,44.0,46.0,48.0,50.0,52.0,54.0,56.0,58.0,60.0,62.0,64.0,66.0,68.0,70.0,72.0,74.0,76.0,78.0,80.0,82.0,84.0,86.0,88.0,90.0,92.0,94.0,96.0,98.0,100.0,102.0,104.0,106.0,108.0,110.0,112.0,114.0,116.0,118.0,120.0,122.0,124.0,126.0,128.0,130.0,132.0,134.0,136.0,138.0,140.0,142.0,144.0,146.0,148.0,150.0,152.0,154.0,156.0,158.0,160.0,162.0,164.0,166.0,168.0,170.0,172.0,174.0,176.0,178.0,180.0,182.0,184.0,186.0,188.0,190.0,192.0,194.0,196.0,198.0,200.0],"times":[1576346.0,3252209.0,4614831.0,6229240.0,7818515.0,9661070.0,11076303.0,12459952.0,13935275.0,15701955.0,16947953.0,21608674.0,20085569.0,21999372.0,23240476.0,24799764.0,26302610.0,27911389.0,29736770.0,30885694.0,34365395.0,34003806.0,36551888.0,37275621.0,38796003.0,40476558.0,41889151.0,43487097.0,45270181.0,47069658.0,49331099.0,49619184.0,51479861.0,53204703.0,54865400.0,56160491.0,57349347.0,62144477.0,60386982.0,62540890.0,63700282.0,65268109.0,69547748.0,68331078.0,69429891.0,71539573.0,72790823.0,74282302.0,76687843.0,77936097.0,79326659.0,80826985.0,82178004.0,84508874.0,86389201.0,101121268.0,88171605.0,90763948.0,92308752.0,93848023.0,94955605.0,96640030.0,98396448.0,99769842.0,101773519.0,103305964.0,104391951.0,105634718.0,106987887.0,108882909.0,111138258.0,115091369.0,113193152.0,115265498.0,116511404.0,124177706.0,120955967.0,121259824.0,123338484.0,125507828.0,126819588.0,128870318.0,135322582.0,133698123.0,135778223.0,133764717.0,136227914.0,137260232.0,138137202.0,141219858.0,142025921.0,144798958.0,148319469.0,149136728.0,151128152.0,149021683.0,151952708.0,155258954.0,158037397.0,156867875.0]}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/1000/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/1000/new/tukey.json
new file mode 100644
index 0000000..54f3293
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/1000/new/tukey.json
@@ -0,0 +1 @@
+[750032.3269480518,763285.5926542208,798627.6345373378,811880.9002435067]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/10000/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/10000/base/benchmark.json
new file mode 100644
index 0000000..8e57074
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/10000/base/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"deserialization","function_id":"catalog_items","value_str":"10000","throughput":{"Bytes":668911},"full_id":"deserialization/catalog_items/10000","directory_name":"deserialization/catalog_items/10000","title":"deserialization/catalog_items/10000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/10000/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/10000/base/estimates.json
new file mode 100644
index 0000000..2a58f3c
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/10000/base/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/10000/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/10000/base/sample.json
new file mode 100644
index 0000000..1d7854d
--- /dev/null
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/10000/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/10000/base/tukey.json
new file mode 100644
index 0000000..8e06528
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/10000/base/tukey.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/10000/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/10000/new/benchmark.json
new file mode 100644
index 0000000..8e57074
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/10000/new/benchmark.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/10000/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/10000/new/estimates.json
new file mode 100644
index 0000000..2a58f3c
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/10000/new/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/10000/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/10000/new/sample.json
new file mode 100644
index 0000000..1d7854d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/10000/new/sample.json
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/10000/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/10000/new/tukey.json
new file mode 100644
index 0000000..8e06528
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/catalog_items/10000/new/tukey.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/sensor_micro/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/sensor_micro/base/benchmark.json
new file mode 100644
index 0000000..8822cdb
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/sensor_micro/base/benchmark.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/sensor_micro/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/sensor_micro/base/estimates.json
new file mode 100644
index 0000000..1b99775
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/sensor_micro/base/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/sensor_micro/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/sensor_micro/base/sample.json
new file mode 100644
index 0000000..9605eec
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/sensor_micro/base/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/sensor_micro/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/sensor_micro/base/tukey.json
new file mode 100644
index 0000000..3e95b1c
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/sensor_micro/base/tukey.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/sensor_micro/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/sensor_micro/new/benchmark.json
new file mode 100644
index 0000000..8822cdb
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/sensor_micro/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"deserialization","function_id":"sensor_micro","value_str":null,"throughput":{"Bytes":94},"full_id":"deserialization/sensor_micro","directory_name":"deserialization/sensor_micro","title":"deserialization/sensor_micro"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/sensor_micro/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/sensor_micro/new/estimates.json
new file mode 100644
index 0000000..1b99775
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/sensor_micro/new/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/sensor_micro/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/sensor_micro/new/sample.json
new file mode 100644
index 0000000..9605eec
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/sensor_micro/new/sample.json
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/sensor_micro/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/sensor_micro/new/tukey.json
new file mode 100644
index 0000000..3e95b1c
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/deserialization/sensor_micro/new/tukey.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/1000/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/1000/base/benchmark.json
new file mode 100644
index 0000000..077740d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/1000/base/benchmark.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/1000/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/1000/base/estimates.json
new file mode 100644
index 0000000..6f64b92
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/1000/base/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/1000/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/1000/base/sample.json
new file mode 100644
index 0000000..d2818a9
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/1000/base/sample.json
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/1000/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/1000/base/tukey.json
new file mode 100644
index 0000000..4306534
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/1000/base/tukey.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/1000/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/1000/new/benchmark.json
new file mode 100644
index 0000000..077740d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/1000/new/benchmark.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/1000/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/1000/new/estimates.json
new file mode 100644
index 0000000..6f64b92
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/1000/new/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/1000/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/1000/new/sample.json
new file mode 100644
index 0000000..d2818a9
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/1000/new/sample.json
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/1000/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/1000/new/tukey.json
new file mode 100644
index 0000000..4306534
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/1000/new/tukey.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/10000/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/10000/base/benchmark.json
new file mode 100644
index 0000000..108dc8d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/10000/base/benchmark.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/10000/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/10000/base/estimates.json
new file mode 100644
index 0000000..917bd6a
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/10000/base/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/10000/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/10000/base/sample.json
new file mode 100644
index 0000000..8d0430f
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/10000/base/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/10000/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/10000/base/tukey.json
new file mode 100644
index 0000000..c7375ab
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/10000/base/tukey.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/10000/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/10000/new/benchmark.json
new file mode 100644
index 0000000..108dc8d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/10000/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"serialization","function_id":"catalog_items","value_str":"10000","throughput":{"Bytes":663911},"full_id":"serialization/catalog_items/10000","directory_name":"serialization/catalog_items/10000","title":"serialization/catalog_items/10000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/10000/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/10000/new/estimates.json
new file mode 100644
index 0000000..917bd6a
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/10000/new/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/10000/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/10000/new/sample.json
new file mode 100644
index 0000000..8d0430f
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/10000/new/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/10000/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/10000/new/tukey.json
new file mode 100644
index 0000000..c7375ab
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/catalog_items/10000/new/tukey.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/sensor_micro/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/sensor_micro/base/benchmark.json
new file mode 100644
index 0000000..9ae1c29
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/sensor_micro/base/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"serialization","function_id":"sensor_micro","value_str":null,"throughput":{"Bytes":94},"full_id":"serialization/sensor_micro","directory_name":"serialization/sensor_micro","title":"serialization/sensor_micro"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/sensor_micro/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/sensor_micro/base/estimates.json
new file mode 100644
index 0000000..dcb5ab8
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/sensor_micro/base/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/sensor_micro/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/sensor_micro/base/sample.json
new file mode 100644
index 0000000..500a051
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/sensor_micro/base/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/sensor_micro/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/sensor_micro/base/tukey.json
new file mode 100644
index 0000000..8600890
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/sensor_micro/base/tukey.json
@@ -0,0 +1 @@
+[216.1598603091472,219.97698924899282,230.15599975524776,233.97312869509335]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/sensor_micro/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/sensor_micro/new/benchmark.json
new file mode 100644
index 0000000..9ae1c29
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/sensor_micro/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"serialization","function_id":"sensor_micro","value_str":null,"throughput":{"Bytes":94},"full_id":"serialization/sensor_micro","directory_name":"serialization/sensor_micro","title":"serialization/sensor_micro"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/sensor_micro/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/sensor_micro/new/estimates.json
new file mode 100644
index 0000000..dcb5ab8
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/sensor_micro/new/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":224.9242009658034,"upper_bound":226.28061755410195},"point_estimate":225.5634597917243,"standard_error":0.34667066643983174},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":224.04811267970172,"upper_bound":225.1364445029856},"point_estimate":224.41267803888084,"standard_error":0.3064511244001218},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":1.2883938163189115,"upper_bound":2.454553943239509},"point_estimate":1.7248869099768827,"standard_error":0.2754360504590772},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":224.97735728785452,"upper_bound":226.84954194265674},"point_estimate":225.82496135961992,"standard_error":0.48114454853478406},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":2.407675379598186,"upper_bound":4.4356661453751745},"point_estimate":3.4941759874976848,"standard_error":0.5176812661449182}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/sensor_micro/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/sensor_micro/new/sample.json
new file mode 100644
index 0000000..500a051
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/sensor_micro/new/sample.json
@@ -0,0 +1 @@
+{"sampling_mode":"Linear","iters":[4380.0,8760.0,13140.0,17520.0,21900.0,26280.0,30660.0,35040.0,39420.0,43800.0,48180.0,52560.0,56940.0,61320.0,65700.0,70080.0,74460.0,78840.0,83220.0,87600.0,91980.0,96360.0,100740.0,105120.0,109500.0,113880.0,118260.0,122640.0,127020.0,131400.0,135780.0,140160.0,144540.0,148920.0,153300.0,157680.0,162060.0,166440.0,170820.0,175200.0,179580.0,183960.0,188340.0,192720.0,197100.0,201480.0,205860.0,210240.0,214620.0,219000.0,223380.0,227760.0,232140.0,236520.0,240900.0,245280.0,249660.0,254040.0,258420.0,262800.0,267180.0,271560.0,275940.0,280320.0,284700.0,289080.0,293460.0,297840.0,302220.0,306600.0,310980.0,315360.0,319740.0,324120.0,328500.0,332880.0,337260.0,341640.0,346020.0,350400.0,354780.0,359160.0,363540.0,367920.0,372300.0,376680.0,381060.0,385440.0,389820.0,394200.0,398580.0,402960.0,407340.0,411720.0,416100.0,420480.0,424860.0,429240.0,433620.0,438000.0],"times":[1007939.0,1942098.0,3049315.0,3981747.0,4854951.0,5865964.0,6914403.0,7740514.0,8823693.0,9984882.0,10790533.0,11758152.0,12834147.0,13696189.0,14893313.0,16250285.0,16679132.0,17697184.0,18812589.0,19617654.0,20441318.0,21799011.0,22623047.0,23440683.0,24533278.0,25522877.0,26691424.0,27196935.0,28294976.0,29266157.0,30804709.0,31166685.0,32382552.0,33930143.0,34388139.0,35516215.0,36467332.0,37094787.0,38111550.0,39214593.0,41725288.0,40997812.0,42896629.0,43732027.0,44052715.0,46021644.0,47160250.0,47279279.0,48036131.0,49316405.0,50060178.0,51358400.0,51959224.0,52592246.0,53678027.0,55148542.0,55949173.0,57883906.0,57899517.0,58899420.0,59860137.0,60964270.0,62559043.0,64211343.0,65292906.0,68202997.0,70171112.0,71950489.0,67758302.0,68435267.0,69637403.0,71129735.0,71619965.0,73141131.0,73947328.0,74518111.0,76999133.0,77824360.0,78436304.0,78813411.0,80249678.0,80579610.0,81548942.0,82144207.0,83320954.0,84975609.0,85217213.0,86251739.0,86956380.0,93714543.0,89713911.0,90988818.0,91262078.0,91922310.0,92886523.0,94406122.0,95774813.0,96089579.0,98674370.0,98791990.0]}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/sensor_micro/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/sensor_micro/new/tukey.json
new file mode 100644
index 0000000..8600890
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-1/serialization/sensor_micro/new/tukey.json
@@ -0,0 +1 @@
+[216.1598603091472,219.97698924899282,230.15599975524776,233.97312869509335]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2.txt b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2.txt
new file mode 100644
index 0000000..9a2e876
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2.txt
@@ -0,0 +1,65 @@
+memcap: <=7721 MiB (60% of 12869 MiB available) [systemd MemoryMax, swap off]
+Benchmarking deserialization/sensor_micro
+Benchmarking deserialization/sensor_micro: Warming up for 3.0000 s
+Benchmarking deserialization/sensor_micro: Collecting 100 samples in estimated 5.0004 s (5.1M iterations)
+Benchmarking deserialization/sensor_micro: Analyzing
+deserialization/sensor_micro
+                        time:   [969.17 ns 974.70 ns 981.17 ns]
+                        thrpt:  [91.366 MiB/s 91.972 MiB/s 92.497 MiB/s]
+Found 14 outliers among 100 measurements (14.00%)
+  9 (9.00%) high mild
+  5 (5.00%) high severe
+Benchmarking deserialization/catalog_items/1000
+Benchmarking deserialization/catalog_items/1000: Warming up for 3.0000 s
+Benchmarking deserialization/catalog_items/1000: Collecting 100 samples in estimated 8.0178 s (10k iterations)
+Benchmarking deserialization/catalog_items/1000: Analyzing
+deserialization/catalog_items/1000
+                        time:   [782.57 µs 786.98 µs 792.35 µs]
+                        thrpt:  [76.923 MiB/s 77.449 MiB/s 77.885 MiB/s]
+Found 8 outliers among 100 measurements (8.00%)
+  5 (5.00%) high mild
+  3 (3.00%) high severe
+Benchmarking deserialization/catalog_items/10000
+Benchmarking deserialization/catalog_items/10000: Warming up for 3.0000 s
+Benchmarking deserialization/catalog_items/10000: Collecting 100 samples in estimated 5.5677 s (700 iterations)
+Benchmarking deserialization/catalog_items/10000: Analyzing
+deserialization/catalog_items/10000
+                        time:   [7.9025 ms 7.9553 ms 8.0179 ms]
+                        thrpt:  [79.563 MiB/s 80.188 MiB/s 80.724 MiB/s]
+Found 13 outliers among 100 measurements (13.00%)
+  5 (5.00%) high mild
+  8 (8.00%) high severe
+
+Benchmarking serialization/sensor_micro
+Benchmarking serialization/sensor_micro: Warming up for 3.0000 s
+Benchmarking serialization/sensor_micro: Collecting 100 samples in estimated 5.0007 s (22M iterations)
+Benchmarking serialization/sensor_micro: Analyzing
+serialization/sensor_micro
+                        time:   [225.32 ns 227.06 ns 229.18 ns]
+                        thrpt:  [391.15 MiB/s 394.82 MiB/s 397.85 MiB/s]
+Found 11 outliers among 100 measurements (11.00%)
+  4 (4.00%) high mild
+  7 (7.00%) high severe
+Benchmarking serialization/catalog_items/1000
+Benchmarking serialization/catalog_items/1000: Warming up for 3.0000 s
+Benchmarking serialization/catalog_items/1000: Collecting 100 samples in estimated 5.4187 s (30k iterations)
+Benchmarking serialization/catalog_items/1000: Analyzing
+serialization/catalog_items/1000
+                        time:   [176.93 µs 177.45 µs 178.05 µs]
+                        thrpt:  [339.65 MiB/s 340.79 MiB/s 341.78 MiB/s]
+Found 7 outliers among 100 measurements (7.00%)
+  2 (2.00%) high mild
+  5 (5.00%) high severe
+Benchmarking serialization/catalog_items/10000
+Benchmarking serialization/catalog_items/10000: Warming up for 3.0000 s
+
+Warning: Unable to complete 100 samples in 5.0s. You may wish to increase target time to 9.1s, enable flat sampling, or reduce sample count to 50.
+Benchmarking serialization/catalog_items/10000: Collecting 100 samples in estimated 9.0502 s (5050 iterations)
+Benchmarking serialization/catalog_items/10000: Analyzing
+serialization/catalog_items/10000
+                        time:   [1.8186 ms 1.8539 ms 1.8947 ms]
+                        thrpt:  [334.18 MiB/s 341.52 MiB/s 348.15 MiB/s]
+Found 14 outliers among 100 measurements (14.00%)
+  6 (6.00%) high mild
+  8 (8.00%) high severe
+
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/1000/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/1000/base/benchmark.json
new file mode 100644
index 0000000..2364a25
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/1000/base/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"deserialization","function_id":"catalog_items","value_str":"1000","throughput":{"Bytes":63911},"full_id":"deserialization/catalog_items/1000","directory_name":"deserialization/catalog_items/1000","title":"deserialization/catalog_items/1000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/1000/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/1000/base/estimates.json
new file mode 100644
index 0000000..82c6e26
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/1000/base/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":784670.0418452171,"upper_bound":794608.2931641726},"point_estimate":789190.6971912745,"standard_error":2547.8518144736636},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":778471.1048534799,"upper_bound":782317.0396825396},"point_estimate":780663.4399350649,"standard_error":1038.032924591344},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":5163.667060599352,"upper_bound":10792.929647118217},"point_estimate":7971.797624541917,"standard_error":1515.7806438615266},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":782566.1503339584,"upper_bound":792350.1520176603},"point_estimate":786976.4518368554,"standard_error":2505.3831362831697},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":14401.803843362462,"upper_bound":35788.71851207234},"point_estimate":25661.520169974112,"standard_error":5556.318271266768}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/1000/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/1000/base/sample.json
new file mode 100644
index 0000000..3ac1195
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/1000/base/sample.json
@@ -0,0 +1 @@
+{"sampling_mode":"Linear","iters":[2.0,4.0,6.0,8.0,10.0,12.0,14.0,16.0,18.0,20.0,22.0,24.0,26.0,28.0,30.0,32.0,34.0,36.0,38.0,40.0,42.0,44.0,46.0,48.0,50.0,52.0,54.0,56.0,58.0,60.0,62.0,64.0,66.0,68.0,70.0,72.0,74.0,76.0,78.0,80.0,82.0,84.0,86.0,88.0,90.0,92.0,94.0,96.0,98.0,100.0,102.0,104.0,106.0,108.0,110.0,112.0,114.0,116.0,118.0,120.0,122.0,124.0,126.0,128.0,130.0,132.0,134.0,136.0,138.0,140.0,142.0,144.0,146.0,148.0,150.0,152.0,154.0,156.0,158.0,160.0,162.0,164.0,166.0,168.0,170.0,172.0,174.0,176.0,178.0,180.0,182.0,184.0,186.0,188.0,190.0,192.0,194.0,196.0,198.0,200.0],"times":[1585870.0,3342990.0,4823266.0,6171546.0,7820797.0,9361250.0,13277394.0,12434339.0,14116167.0,15909090.0,17044422.0,18525954.0,20195041.0,22503445.0,23284215.0,24808747.0,26215888.0,28590586.0,30991915.0,32626268.0,32684612.0,34157405.0,36163467.0,39586424.0,38717767.0,40609306.0,41830295.0,43402104.0,45133865.0,46504629.0,48236118.0,50837694.0,51340827.0,54287660.0,54120057.0,56740556.0,58540431.0,59915911.0,60736307.0,61982100.0,65132428.0,66714771.0,74471206.0,70916031.0,70112434.0,75198829.0,73285031.0,74292837.0,76747973.0,77607114.0,79869550.0,86327469.0,82454130.0,83633727.0,85472131.0,87436137.0,88323624.0,90673638.0,91409752.0,93726127.0,95443498.0,97286753.0,98571947.0,114997071.0,100500880.0,103185976.0,109900596.0,105704458.0,106906464.0,108958025.0,110557674.0,114317296.0,114068320.0,115860634.0,116719579.0,118717308.0,119980422.0,122281481.0,123711386.0,127888019.0,126209993.0,127260741.0,129023024.0,137408950.0,132293799.0,133058209.0,136674153.0,137393887.0,138141573.0,140227452.0,144513212.0,142655150.0,145476972.0,146233095.0,150618910.0,148941510.0,151325812.0,155501038.0,153410652.0,167750309.0]}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/1000/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/1000/base/tukey.json
new file mode 100644
index 0000000..c8bf01a
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/1000/base/tukey.json
@@ -0,0 +1 @@
+[725921.24512987,751092.432224026,818215.5978084416,843386.7849025974]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/1000/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/1000/new/benchmark.json
new file mode 100644
index 0000000..2364a25
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/1000/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"deserialization","function_id":"catalog_items","value_str":"1000","throughput":{"Bytes":63911},"full_id":"deserialization/catalog_items/1000","directory_name":"deserialization/catalog_items/1000","title":"deserialization/catalog_items/1000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/1000/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/1000/new/estimates.json
new file mode 100644
index 0000000..82c6e26
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/1000/new/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":784670.0418452171,"upper_bound":794608.2931641726},"point_estimate":789190.6971912745,"standard_error":2547.8518144736636},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":778471.1048534799,"upper_bound":782317.0396825396},"point_estimate":780663.4399350649,"standard_error":1038.032924591344},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":5163.667060599352,"upper_bound":10792.929647118217},"point_estimate":7971.797624541917,"standard_error":1515.7806438615266},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":782566.1503339584,"upper_bound":792350.1520176603},"point_estimate":786976.4518368554,"standard_error":2505.3831362831697},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":14401.803843362462,"upper_bound":35788.71851207234},"point_estimate":25661.520169974112,"standard_error":5556.318271266768}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/1000/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/1000/new/sample.json
new file mode 100644
index 0000000..3ac1195
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/1000/new/sample.json
@@ -0,0 +1 @@
+{"sampling_mode":"Linear","iters":[2.0,4.0,6.0,8.0,10.0,12.0,14.0,16.0,18.0,20.0,22.0,24.0,26.0,28.0,30.0,32.0,34.0,36.0,38.0,40.0,42.0,44.0,46.0,48.0,50.0,52.0,54.0,56.0,58.0,60.0,62.0,64.0,66.0,68.0,70.0,72.0,74.0,76.0,78.0,80.0,82.0,84.0,86.0,88.0,90.0,92.0,94.0,96.0,98.0,100.0,102.0,104.0,106.0,108.0,110.0,112.0,114.0,116.0,118.0,120.0,122.0,124.0,126.0,128.0,130.0,132.0,134.0,136.0,138.0,140.0,142.0,144.0,146.0,148.0,150.0,152.0,154.0,156.0,158.0,160.0,162.0,164.0,166.0,168.0,170.0,172.0,174.0,176.0,178.0,180.0,182.0,184.0,186.0,188.0,190.0,192.0,194.0,196.0,198.0,200.0],"times":[1585870.0,3342990.0,4823266.0,6171546.0,7820797.0,9361250.0,13277394.0,12434339.0,14116167.0,15909090.0,17044422.0,18525954.0,20195041.0,22503445.0,23284215.0,24808747.0,26215888.0,28590586.0,30991915.0,32626268.0,32684612.0,34157405.0,36163467.0,39586424.0,38717767.0,40609306.0,41830295.0,43402104.0,45133865.0,46504629.0,48236118.0,50837694.0,51340827.0,54287660.0,54120057.0,56740556.0,58540431.0,59915911.0,60736307.0,61982100.0,65132428.0,66714771.0,74471206.0,70916031.0,70112434.0,75198829.0,73285031.0,74292837.0,76747973.0,77607114.0,79869550.0,86327469.0,82454130.0,83633727.0,85472131.0,87436137.0,88323624.0,90673638.0,91409752.0,93726127.0,95443498.0,97286753.0,98571947.0,114997071.0,100500880.0,103185976.0,109900596.0,105704458.0,106906464.0,108958025.0,110557674.0,114317296.0,114068320.0,115860634.0,116719579.0,118717308.0,119980422.0,122281481.0,123711386.0,127888019.0,126209993.0,127260741.0,129023024.0,137408950.0,132293799.0,133058209.0,136674153.0,137393887.0,138141573.0,140227452.0,144513212.0,142655150.0,145476972.0,146233095.0,150618910.0,148941510.0,151325812.0,155501038.0,153410652.0,167750309.0]}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/1000/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/1000/new/tukey.json
new file mode 100644
index 0000000..c8bf01a
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/1000/new/tukey.json
@@ -0,0 +1 @@
+[725921.24512987,751092.432224026,818215.5978084416,843386.7849025974]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/10000/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/10000/base/benchmark.json
new file mode 100644
index 0000000..8e57074
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/10000/base/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"deserialization","function_id":"catalog_items","value_str":"10000","throughput":{"Bytes":668911},"full_id":"deserialization/catalog_items/10000","directory_name":"deserialization/catalog_items/10000","title":"deserialization/catalog_items/10000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/10000/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/10000/base/estimates.json
new file mode 100644
index 0000000..c3c08e0
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/10000/base/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/10000/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/10000/base/sample.json
new file mode 100644
index 0000000..c2c660f
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/10000/base/sample.json
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/10000/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/10000/base/tukey.json
new file mode 100644
index 0000000..451d1a9
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/10000/base/tukey.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/10000/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/10000/new/benchmark.json
new file mode 100644
index 0000000..8e57074
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/10000/new/benchmark.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/10000/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/10000/new/estimates.json
new file mode 100644
index 0000000..c3c08e0
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/10000/new/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/10000/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/10000/new/sample.json
new file mode 100644
index 0000000..c2c660f
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/10000/new/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/10000/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/10000/new/tukey.json
new file mode 100644
index 0000000..451d1a9
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/catalog_items/10000/new/tukey.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/sensor_micro/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/sensor_micro/base/benchmark.json
new file mode 100644
index 0000000..8822cdb
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/sensor_micro/base/benchmark.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/sensor_micro/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/sensor_micro/base/estimates.json
new file mode 100644
index 0000000..1b39590
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/sensor_micro/base/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/sensor_micro/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/sensor_micro/base/sample.json
new file mode 100644
index 0000000..d83fdee
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/sensor_micro/base/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/sensor_micro/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/sensor_micro/base/tukey.json
new file mode 100644
index 0000000..5dd0507
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/sensor_micro/base/tukey.json
@@ -0,0 +1 @@
+[916.389512166018,938.4774127957435,997.3784811416781,1019.4663817714036]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/sensor_micro/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/sensor_micro/new/benchmark.json
new file mode 100644
index 0000000..8822cdb
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/sensor_micro/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"deserialization","function_id":"sensor_micro","value_str":null,"throughput":{"Bytes":94},"full_id":"deserialization/sensor_micro","directory_name":"deserialization/sensor_micro","title":"deserialization/sensor_micro"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/sensor_micro/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/sensor_micro/new/estimates.json
new file mode 100644
index 0000000..1b39590
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/sensor_micro/new/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/sensor_micro/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/sensor_micro/new/sample.json
new file mode 100644
index 0000000..d83fdee
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/sensor_micro/new/sample.json
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/sensor_micro/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/sensor_micro/new/tukey.json
new file mode 100644
index 0000000..5dd0507
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/deserialization/sensor_micro/new/tukey.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/1000/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/1000/base/benchmark.json
new file mode 100644
index 0000000..077740d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/1000/base/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"serialization","function_id":"catalog_items","value_str":"1000","throughput":{"Bytes":63411},"full_id":"serialization/catalog_items/1000","directory_name":"serialization/catalog_items/1000","title":"serialization/catalog_items/1000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/1000/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/1000/base/estimates.json
new file mode 100644
index 0000000..95ee3b4
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/1000/base/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/1000/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/1000/base/sample.json
new file mode 100644
index 0000000..500710a
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/1000/base/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/1000/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/1000/base/tukey.json
new file mode 100644
index 0000000..2fab925
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/1000/base/tukey.json
@@ -0,0 +1 @@
+[167835.84621090032,171870.01265648374,182627.78984470625,186661.9562902897]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/1000/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/1000/new/benchmark.json
new file mode 100644
index 0000000..077740d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/1000/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"serialization","function_id":"catalog_items","value_str":"1000","throughput":{"Bytes":63411},"full_id":"serialization/catalog_items/1000","directory_name":"serialization/catalog_items/1000","title":"serialization/catalog_items/1000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/1000/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/1000/new/estimates.json
new file mode 100644
index 0000000..95ee3b4
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/1000/new/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":177309.1110682692,"upper_bound":179616.67478112257},"point_estimate":178287.9904270703,"standard_error":596.1268086997642},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":176300.9693877551,"upper_bound":177135.64112276613},"point_estimate":176612.1171507064,"standard_error":219.15317387868498},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":960.3208990343982,"upper_bound":2010.6282165922303},"point_estimate":1458.0967237016273,"standard_error":269.64958843698946},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":176934.53331327997,"upper_bound":178046.04724562925},"point_estimate":177452.954702724,"standard_error":284.48334360653416},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":2470.5203127665736,"upper_bound":9250.314253539413},"point_estimate":5966.220917024158,"standard_error":1990.2992664459657}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/1000/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/1000/new/sample.json
new file mode 100644
index 0000000..500710a
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/1000/new/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/1000/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/1000/new/tukey.json
new file mode 100644
index 0000000..2fab925
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/1000/new/tukey.json
@@ -0,0 +1 @@
+[167835.84621090032,171870.01265648374,182627.78984470625,186661.9562902897]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/10000/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/10000/base/benchmark.json
new file mode 100644
index 0000000..108dc8d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/10000/base/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"serialization","function_id":"catalog_items","value_str":"10000","throughput":{"Bytes":663911},"full_id":"serialization/catalog_items/10000","directory_name":"serialization/catalog_items/10000","title":"serialization/catalog_items/10000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/10000/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/10000/base/estimates.json
new file mode 100644
index 0000000..7be54fb
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/10000/base/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":1803586.690858,"upper_bound":1840220.847117122},"point_estimate":1820118.9438290582,"standard_error":9434.505392752879},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":1781925.4583333333,"upper_bound":1797027.5076923077},"point_estimate":1788443.3928571427,"standard_error":3979.5711371244574},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":11668.916245731336,"upper_bound":28357.26654424988},"point_estimate":18193.179573110236,"standard_error":3985.9400682861947},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":1818643.0428494925,"upper_bound":1894664.5750367765},"point_estimate":1853907.4200591105,"standard_error":19617.3403139743},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":52005.692940096436,"upper_bound":134859.82549583056},"point_estimate":94736.88417429304,"standard_error":21962.254250396527}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/10000/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/10000/base/sample.json
new file mode 100644
index 0000000..580d6fd
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/10000/base/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/10000/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/10000/base/tukey.json
new file mode 100644
index 0000000..89a75c5
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/10000/base/tukey.json
@@ -0,0 +1 @@
+[1674417.1042708335,1726220.1065104168,1864361.4458159723,1916164.4480555556]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/10000/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/10000/new/benchmark.json
new file mode 100644
index 0000000..108dc8d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/10000/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"serialization","function_id":"catalog_items","value_str":"10000","throughput":{"Bytes":663911},"full_id":"serialization/catalog_items/10000","directory_name":"serialization/catalog_items/10000","title":"serialization/catalog_items/10000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/10000/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/10000/new/estimates.json
new file mode 100644
index 0000000..7be54fb
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/10000/new/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/10000/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/10000/new/sample.json
new file mode 100644
index 0000000..580d6fd
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/10000/new/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/10000/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/10000/new/tukey.json
new file mode 100644
index 0000000..89a75c5
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/catalog_items/10000/new/tukey.json
@@ -0,0 +1 @@
+[1674417.1042708335,1726220.1065104168,1864361.4458159723,1916164.4480555556]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/sensor_micro/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/sensor_micro/base/benchmark.json
new file mode 100644
index 0000000..9ae1c29
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/sensor_micro/base/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"serialization","function_id":"sensor_micro","value_str":null,"throughput":{"Bytes":94},"full_id":"serialization/sensor_micro","directory_name":"serialization/sensor_micro","title":"serialization/sensor_micro"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/sensor_micro/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/sensor_micro/base/estimates.json
new file mode 100644
index 0000000..54da69e
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/sensor_micro/base/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":225.0686614468257,"upper_bound":227.24277367713145},"point_estimate":226.0632235067906,"standard_error":0.5554465166915109},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":224.01794768201555,"upper_bound":224.96148946469975},"point_estimate":224.44299182816724,"standard_error":0.25606884125945806},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":1.211226923003238,"upper_bound":2.154550043953596},"point_estimate":1.6268131225360645,"standard_error":0.24072088348347356},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":225.32234702595224,"upper_bound":229.1834547907037},"point_estimate":227.0558781049177,"standard_error":0.9955497413117136},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":3.279853139565905,"upper_bound":7.528650299315664},"point_estimate":5.561546363111269,"standard_error":1.0854890938764552}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/sensor_micro/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/sensor_micro/base/sample.json
new file mode 100644
index 0000000..3d4b702
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/sensor_micro/base/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/sensor_micro/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/sensor_micro/base/tukey.json
new file mode 100644
index 0000000..dceee2c
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/sensor_micro/base/tukey.json
@@ -0,0 +1 @@
+[216.37034744725824,219.98017649874325,229.60638730270327,233.21621635418828]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/sensor_micro/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/sensor_micro/new/benchmark.json
new file mode 100644
index 0000000..9ae1c29
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/sensor_micro/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"serialization","function_id":"sensor_micro","value_str":null,"throughput":{"Bytes":94},"full_id":"serialization/sensor_micro","directory_name":"serialization/sensor_micro","title":"serialization/sensor_micro"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/sensor_micro/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/sensor_micro/new/estimates.json
new file mode 100644
index 0000000..54da69e
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/sensor_micro/new/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":225.0686614468257,"upper_bound":227.24277367713145},"point_estimate":226.0632235067906,"standard_error":0.5554465166915109},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":224.01794768201555,"upper_bound":224.96148946469975},"point_estimate":224.44299182816724,"standard_error":0.25606884125945806},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":1.211226923003238,"upper_bound":2.154550043953596},"point_estimate":1.6268131225360645,"standard_error":0.24072088348347356},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":225.32234702595224,"upper_bound":229.1834547907037},"point_estimate":227.0558781049177,"standard_error":0.9955497413117136},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":3.279853139565905,"upper_bound":7.528650299315664},"point_estimate":5.561546363111269,"standard_error":1.0854890938764552}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/sensor_micro/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/baseline-2/serialization/sensor_micro/new/sample.json
new file mode 100644
index 0000000..3d4b702
--- /dev/null
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0.txt b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0.txt
new file mode 100644
index 0000000..df2e315
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0.txt
@@ -0,0 +1,65 @@
+memcap: <=7722 MiB (60% of 12871 MiB available) [systemd MemoryMax, swap off]
+Benchmarking deserialization/sensor_micro
+Benchmarking deserialization/sensor_micro: Warming up for 3.0000 s
+Benchmarking deserialization/sensor_micro: Collecting 100 samples in estimated 5.0004 s (5.3M iterations)
+Benchmarking deserialization/sensor_micro: Analyzing
+deserialization/sensor_micro
+                        time:   [925.83 ns 932.08 ns 940.15 ns]
+                        thrpt:  [95.352 MiB/s 96.177 MiB/s 96.827 MiB/s]
+Found 9 outliers among 100 measurements (9.00%)
+  4 (4.00%) high mild
+  5 (5.00%) high severe
+Benchmarking deserialization/catalog_items/1000
+Benchmarking deserialization/catalog_items/1000: Warming up for 3.0000 s
+Benchmarking deserialization/catalog_items/1000: Collecting 100 samples in estimated 7.5668 s (10k iterations)
+Benchmarking deserialization/catalog_items/1000: Analyzing
+deserialization/catalog_items/1000
+                        time:   [761.37 µs 768.03 µs 777.11 µs]
+                        thrpt:  [78.432 MiB/s 79.360 MiB/s 80.053 MiB/s]
+Found 9 outliers among 100 measurements (9.00%)
+  3 (3.00%) high mild
+  6 (6.00%) high severe
+Benchmarking deserialization/catalog_items/10000
+Benchmarking deserialization/catalog_items/10000: Warming up for 3.0000 s
+Benchmarking deserialization/catalog_items/10000: Collecting 100 samples in estimated 5.3390 s (700 iterations)
+Benchmarking deserialization/catalog_items/10000: Analyzing
+deserialization/catalog_items/10000
+                        time:   [7.5568 ms 7.5938 ms 7.6362 ms]
+                        thrpt:  [83.540 MiB/s 84.006 MiB/s 84.417 MiB/s]
+Found 11 outliers among 100 measurements (11.00%)
+  6 (6.00%) high mild
+  5 (5.00%) high severe
+
+Benchmarking serialization/sensor_micro
+Benchmarking serialization/sensor_micro: Warming up for 3.0000 s
+Benchmarking serialization/sensor_micro: Collecting 100 samples in estimated 5.0010 s (21M iterations)
+Benchmarking serialization/sensor_micro: Analyzing
+serialization/sensor_micro
+                        time:   [232.78 ns 234.25 ns 236.66 ns]
+                        thrpt:  [378.79 MiB/s 382.69 MiB/s 385.11 MiB/s]
+Found 12 outliers among 100 measurements (12.00%)
+  5 (5.00%) high mild
+  7 (7.00%) high severe
+Benchmarking serialization/catalog_items/1000
+Benchmarking serialization/catalog_items/1000: Warming up for 3.0000 s
+Benchmarking serialization/catalog_items/1000: Collecting 100 samples in estimated 5.3374 s (30k iterations)
+Benchmarking serialization/catalog_items/1000: Analyzing
+serialization/catalog_items/1000
+                        time:   [174.68 µs 175.13 µs 175.66 µs]
+                        thrpt:  [344.26 MiB/s 345.30 MiB/s 346.20 MiB/s]
+Found 12 outliers among 100 measurements (12.00%)
+  3 (3.00%) high mild
+  9 (9.00%) high severe
+Benchmarking serialization/catalog_items/10000
+Benchmarking serialization/catalog_items/10000: Warming up for 3.0000 s
+
+Warning: Unable to complete 100 samples in 5.0s. You may wish to increase target time to 9.0s, enable flat sampling, or reduce sample count to 50.
+Benchmarking serialization/catalog_items/10000: Collecting 100 samples in estimated 8.9555 s (5050 iterations)
+Benchmarking serialization/catalog_items/10000: Analyzing
+serialization/catalog_items/10000
+                        time:   [1.7893 ms 1.8310 ms 1.8910 ms]
+                        thrpt:  [334.83 MiB/s 345.79 MiB/s 353.86 MiB/s]
+Found 8 outliers among 100 measurements (8.00%)
+  4 (4.00%) high mild
+  4 (4.00%) high severe
+
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/1000/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/1000/base/benchmark.json
new file mode 100644
index 0000000..2364a25
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/1000/base/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"deserialization","function_id":"catalog_items","value_str":"1000","throughput":{"Bytes":63911},"full_id":"deserialization/catalog_items/1000","directory_name":"deserialization/catalog_items/1000","title":"deserialization/catalog_items/1000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/1000/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/1000/base/estimates.json
new file mode 100644
index 0000000..7db679c
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/1000/base/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":756728.0802774625,"upper_bound":766504.6790133109},"point_estimate":761319.7858169902,"standard_error":2497.2585789894356},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":751265.8523924248,"upper_bound":757727.8703703703},"point_estimate":754677.556372549,"standard_error":1846.5899226867618},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":9013.797730593289,"upper_bound":15882.086484880107},"point_estimate":12124.987792692975,"standard_error":1756.6127270371428},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":761374.72135039,"upper_bound":777112.2495242736},"point_estimate":768027.3376488843,"standard_error":4094.2938158488078},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":17083.038229696405,"upper_bound":32247.10498050633},"point_estimate":25058.068844350193,"standard_error":3890.3216799656975}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/1000/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/1000/base/sample.json
new file mode 100644
index 0000000..6037ea9
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/1000/base/sample.json
@@ -0,0 +1 @@
+{"sampling_mode":"Linear","iters":[2.0,4.0,6.0,8.0,10.0,12.0,14.0,16.0,18.0,20.0,22.0,24.0,26.0,28.0,30.0,32.0,34.0,36.0,38.0,40.0,42.0,44.0,46.0,48.0,50.0,52.0,54.0,56.0,58.0,60.0,62.0,64.0,66.0,68.0,70.0,72.0,74.0,76.0,78.0,80.0,82.0,84.0,86.0,88.0,90.0,92.0,94.0,96.0,98.0,100.0,102.0,104.0,106.0,108.0,110.0,112.0,114.0,116.0,118.0,120.0,122.0,124.0,126.0,128.0,130.0,132.0,134.0,136.0,138.0,140.0,142.0,144.0,146.0,148.0,150.0,152.0,154.0,156.0,158.0,160.0,162.0,164.0,166.0,168.0,170.0,172.0,174.0,176.0,178.0,180.0,182.0,184.0,186.0,188.0,190.0,192.0,194.0,196.0,198.0,200.0],"times":[1552934.0,3062350.0,4575057.0,5932419.0,7354882.0,8898357.0,10400264.0,11774264.0,13320781.0,14893713.0,16444574.0,17754847.0,19299483.0,21181409.0,22151324.0,23750037.0,25146107.0,26946615.0,29870265.0,29876650.0,31515974.0,32629323.0,34233003.0,35620687.0,37111024.0,38628545.0,40917305.0,46801144.0,43240870.0,45011050.0,45983639.0,47744020.0,49350617.0,51317681.0,52650353.0,53804074.0,57475747.0,56762291.0,58461541.0,59996389.0,61407982.0,63393400.0,64541225.0,65718381.0,67296090.0,69609487.0,70213602.0,71745805.0,73409473.0,83611341.0,82785088.0,82060836.0,81251486.0,80951109.0,91945966.0,84285049.0,85063506.0,88794692.0,89717773.0,90154198.0,92569404.0,95337176.0,95452825.0,99163758.0,97761480.0,100552171.0,101226177.0,102964870.0,110613846.0,106372083.0,117621767.0,114494347.0,114208961.0,113507149.0,123608547.0,117036797.0,117526050.0,119533501.0,120407801.0,123670624.0,124716607.0,124304154.0,125784525.0,126575710.0,127801008.0,130488342.0,131397255.0,134920003.0,134505274.0,135463217.0,137314942.0,138279491.0,142047375.0,143770691.0,144823242.0,145405678.0,145696470.0,148928513.0,176049112.0,153519938.0]}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/1000/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/1000/base/tukey.json
new file mode 100644
index 0000000..c3366d3
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/1000/base/tukey.json
@@ -0,0 +1 @@
+[692288.1682257279,719742.787791942,792955.1066351796,820409.7262013936]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/1000/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/1000/new/benchmark.json
new file mode 100644
index 0000000..2364a25
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/1000/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"deserialization","function_id":"catalog_items","value_str":"1000","throughput":{"Bytes":63911},"full_id":"deserialization/catalog_items/1000","directory_name":"deserialization/catalog_items/1000","title":"deserialization/catalog_items/1000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/1000/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/1000/new/estimates.json
new file mode 100644
index 0000000..7db679c
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/1000/new/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/1000/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/1000/new/sample.json
new file mode 100644
index 0000000..6037ea9
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/1000/new/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/1000/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/1000/new/tukey.json
new file mode 100644
index 0000000..c3366d3
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/1000/new/tukey.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/10000/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/10000/base/benchmark.json
new file mode 100644
index 0000000..8e57074
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/10000/base/benchmark.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/10000/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/10000/base/estimates.json
new file mode 100644
index 0000000..1fbe509
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/10000/base/estimates.json
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/10000/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/10000/base/sample.json
new file mode 100644
index 0000000..cc9ee42
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/10000/base/sample.json
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/10000/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/10000/base/tukey.json
new file mode 100644
index 0000000..1950fa7
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/10000/base/tukey.json
@@ -0,0 +1 @@
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/10000/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/10000/new/benchmark.json
new file mode 100644
index 0000000..8e57074
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/10000/new/benchmark.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/10000/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/10000/new/estimates.json
new file mode 100644
index 0000000..1fbe509
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/10000/new/estimates.json
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/10000/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/10000/new/sample.json
new file mode 100644
index 0000000..cc9ee42
--- /dev/null
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/10000/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/10000/new/tukey.json
new file mode 100644
index 0000000..1950fa7
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/catalog_items/10000/new/tukey.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/sensor_micro/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/sensor_micro/base/benchmark.json
new file mode 100644
index 0000000..8822cdb
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/sensor_micro/base/benchmark.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/sensor_micro/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/sensor_micro/base/estimates.json
new file mode 100644
index 0000000..59d6d47
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/sensor_micro/base/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/sensor_micro/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/sensor_micro/base/sample.json
new file mode 100644
index 0000000..924978b
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/sensor_micro/base/sample.json
@@ -0,0 +1 @@
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/sensor_micro/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/sensor_micro/base/tukey.json
new file mode 100644
index 0000000..21df989
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/sensor_micro/base/tukey.json
@@ -0,0 +1 @@
+[870.1154375666217,893.5484638107823,956.0365337952107,979.4695600393715]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/sensor_micro/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/sensor_micro/new/benchmark.json
new file mode 100644
index 0000000..8822cdb
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/sensor_micro/new/benchmark.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/sensor_micro/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/sensor_micro/new/estimates.json
new file mode 100644
index 0000000..59d6d47
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/sensor_micro/new/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/sensor_micro/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/sensor_micro/new/sample.json
new file mode 100644
index 0000000..924978b
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/sensor_micro/new/sample.json
@@ -0,0 +1 @@
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/sensor_micro/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/sensor_micro/new/tukey.json
new file mode 100644
index 0000000..21df989
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/deserialization/sensor_micro/new/tukey.json
@@ -0,0 +1 @@
+[870.1154375666217,893.5484638107823,956.0365337952107,979.4695600393715]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/1000/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/1000/base/benchmark.json
new file mode 100644
index 0000000..077740d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/1000/base/benchmark.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/1000/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/1000/base/estimates.json
new file mode 100644
index 0000000..0828e0e
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/1000/base/estimates.json
@@ -0,0 +1 @@
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/1000/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/1000/base/sample.json
new file mode 100644
index 0000000..58e7db1
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/1000/base/sample.json
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/1000/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/1000/base/tukey.json
new file mode 100644
index 0000000..ed4e488
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/1000/base/tukey.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/1000/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/1000/new/benchmark.json
new file mode 100644
index 0000000..077740d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/1000/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"serialization","function_id":"catalog_items","value_str":"1000","throughput":{"Bytes":63411},"full_id":"serialization/catalog_items/1000","directory_name":"serialization/catalog_items/1000","title":"serialization/catalog_items/1000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/1000/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/1000/new/estimates.json
new file mode 100644
index 0000000..0828e0e
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/1000/new/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":175182.82977197025,"upper_bound":177062.97592994536},"point_estimate":176060.5997688246,"standard_error":480.12887266199334},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":174078.76096491228,"upper_bound":174715.5575757576},"point_estimate":174371.80893162393,"standard_error":175.79774855253152},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":868.641748661641,"upper_bound":1732.082048675928},"point_estimate":1184.9812923142551,"standard_error":225.59254721887564},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":174678.81830675923,"upper_bound":175662.2596469533},"point_estimate":175134.57185360327,"standard_error":252.06818447559803},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":3247.357897945324,"upper_bound":6047.074547104248},"point_estimate":4809.007490763179,"standard_error":713.5529468194494}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/1000/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/1000/new/sample.json
new file mode 100644
index 0000000..58e7db1
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/1000/new/sample.json
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/1000/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/1000/new/tukey.json
new file mode 100644
index 0000000..ed4e488
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/1000/new/tukey.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/10000/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/10000/base/benchmark.json
new file mode 100644
index 0000000..108dc8d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/10000/base/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"serialization","function_id":"catalog_items","value_str":"10000","throughput":{"Bytes":663911},"full_id":"serialization/catalog_items/10000","directory_name":"serialization/catalog_items/10000","title":"serialization/catalog_items/10000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/10000/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/10000/base/estimates.json
new file mode 100644
index 0000000..7f4153e
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/10000/base/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/10000/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/10000/base/sample.json
new file mode 100644
index 0000000..3f998cd
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/10000/base/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/10000/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/10000/base/tukey.json
new file mode 100644
index 0000000..b0ae8c8
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/10000/base/tukey.json
@@ -0,0 +1 @@
+[1652884.9906462582,1709416.1857993195,1860166.0395408163,1916697.2346938776]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/10000/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/10000/new/benchmark.json
new file mode 100644
index 0000000..108dc8d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/10000/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"serialization","function_id":"catalog_items","value_str":"10000","throughput":{"Bytes":663911},"full_id":"serialization/catalog_items/10000","directory_name":"serialization/catalog_items/10000","title":"serialization/catalog_items/10000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/10000/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/10000/new/estimates.json
new file mode 100644
index 0000000..7f4153e
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/10000/new/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/10000/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/10000/new/sample.json
new file mode 100644
index 0000000..3f998cd
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/10000/new/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/10000/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/10000/new/tukey.json
new file mode 100644
index 0000000..b0ae8c8
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/catalog_items/10000/new/tukey.json
@@ -0,0 +1 @@
+[1652884.9906462582,1709416.1857993195,1860166.0395408163,1916697.2346938776]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/sensor_micro/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/sensor_micro/base/benchmark.json
new file mode 100644
index 0000000..9ae1c29
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/sensor_micro/base/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"serialization","function_id":"sensor_micro","value_str":null,"throughput":{"Bytes":94},"full_id":"serialization/sensor_micro","directory_name":"serialization/sensor_micro","title":"serialization/sensor_micro"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/sensor_micro/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/sensor_micro/base/estimates.json
new file mode 100644
index 0000000..a0d58bc
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/sensor_micro/base/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":232.8141189762846,"upper_bound":235.2661979103697},"point_estimate":233.87284823826917,"standard_error":0.6308312312547608},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":232.10726666804234,"upper_bound":232.9022530468967},"point_estimate":232.4687775442403,"standard_error":0.21488777794406613},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":1.306313714982725,"upper_bound":2.2235170031368154},"point_estimate":1.7310737708809696,"standard_error":0.23415196012664166},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":232.7805301614283,"upper_bound":236.6594858209817},"point_estimate":234.25220117114034,"standard_error":1.0343926197261868},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":2.953071274751933,"upper_bound":9.649751397456047},"point_estimate":6.329679568803697,"standard_error":1.9670109766440766}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/sensor_micro/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/sensor_micro/base/sample.json
new file mode 100644
index 0000000..c4ce342
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/sensor_micro/base/sample.json
@@ -0,0 +1 @@
+{"sampling_mode":"Linear","iters":[4214.0,8428.0,12642.0,16856.0,21070.0,25284.0,29498.0,33712.0,37926.0,42140.0,46354.0,50568.0,54782.0,58996.0,63210.0,67424.0,71638.0,75852.0,80066.0,84280.0,88494.0,92708.0,96922.0,101136.0,105350.0,109564.0,113778.0,117992.0,122206.0,126420.0,130634.0,134848.0,139062.0,143276.0,147490.0,151704.0,155918.0,160132.0,164346.0,168560.0,172774.0,176988.0,181202.0,185416.0,189630.0,193844.0,198058.0,202272.0,206486.0,210700.0,214914.0,219128.0,223342.0,227556.0,231770.0,235984.0,240198.0,244412.0,248626.0,252840.0,257054.0,261268.0,265482.0,269696.0,273910.0,278124.0,282338.0,286552.0,290766.0,294980.0,299194.0,303408.0,307622.0,311836.0,316050.0,320264.0,324478.0,328692.0,332906.0,337120.0,341334.0,345548.0,349762.0,353976.0,358190.0,362404.0,366618.0,370832.0,375046.0,379260.0,383474.0,387688.0,391902.0,396116.0,400330.0,404544.0,408758.0,412972.0,417186.0,421400.0],"times":[1011198.0,1972340.0,2899703.0,3910234.0,4997795.0,5873522.0,6890717.0,7723415.0,8817830.0,9603213.0,10633310.0,11694572.0,13042587.0,13714295.0,14660264.0,15695536.0,16447413.0,17437838.0,18542948.0,19385942.0,20445387.0,21424450.0,22490306.0,23445464.0,24534627.0,25572758.0,26409648.0,27388093.0,28209104.0,29944435.0,30397883.0,30825983.0,32064210.0,32904913.0,34619161.0,37663029.0,36508141.0,37190154.0,38262494.0,39342983.0,40676949.0,40910801.0,42952052.0,46222173.0,44030574.0,44860676.0,46230636.0,47003208.0,48116380.0,52504124.0,51788995.0,51688006.0,52023962.0,52657502.0,53726272.0,54445947.0,57178936.0,58564304.0,58073336.0,58664112.0,60006776.0,63697787.0,61710297.0,62302402.0,63771043.0,64599191.0,65141229.0,66662541.0,67506885.0,68261185.0,69815319.0,70654752.0,72256091.0,72683228.0,73498489.0,74272439.0,75024682.0,75995540.0,76870687.0,81749673.0,96785824.0,80554032.0,80863398.0,82290966.0,83769277.0,85206570.0,84870504.0,86051863.0,86965977.0,88344341.0,89652091.0,89655832.0,91698913.0,92270464.0,91921431.0,93444521.0,95387286.0,96689876.0,97269361.0,97495833.0]}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/sensor_micro/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/sensor_micro/base/tukey.json
new file mode 100644
index 0000000..47ffdfe
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/sensor_micro/base/tukey.json
@@ -0,0 +1 @@
+[224.40875067583892,227.87305879385997,237.11121377524944,240.5755218932705]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/sensor_micro/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/sensor_micro/new/benchmark.json
new file mode 100644
index 0000000..9ae1c29
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/sensor_micro/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"serialization","function_id":"sensor_micro","value_str":null,"throughput":{"Bytes":94},"full_id":"serialization/sensor_micro","directory_name":"serialization/sensor_micro","title":"serialization/sensor_micro"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/sensor_micro/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/sensor_micro/new/estimates.json
new file mode 100644
index 0000000..a0d58bc
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/sensor_micro/new/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":232.8141189762846,"upper_bound":235.2661979103697},"point_estimate":233.87284823826917,"standard_error":0.6308312312547608},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":232.10726666804234,"upper_bound":232.9022530468967},"point_estimate":232.4687775442403,"standard_error":0.21488777794406613},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":1.306313714982725,"upper_bound":2.2235170031368154},"point_estimate":1.7310737708809696,"standard_error":0.23415196012664166},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":232.7805301614283,"upper_bound":236.6594858209817},"point_estimate":234.25220117114034,"standard_error":1.0343926197261868},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":2.953071274751933,"upper_bound":9.649751397456047},"point_estimate":6.329679568803697,"standard_error":1.9670109766440766}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/sensor_micro/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/sensor_micro/new/sample.json
new file mode 100644
index 0000000..c4ce342
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/sensor_micro/new/sample.json
@@ -0,0 +1 @@
+{"sampling_mode":"Linear","iters":[4214.0,8428.0,12642.0,16856.0,21070.0,25284.0,29498.0,33712.0,37926.0,42140.0,46354.0,50568.0,54782.0,58996.0,63210.0,67424.0,71638.0,75852.0,80066.0,84280.0,88494.0,92708.0,96922.0,101136.0,105350.0,109564.0,113778.0,117992.0,122206.0,126420.0,130634.0,134848.0,139062.0,143276.0,147490.0,151704.0,155918.0,160132.0,164346.0,168560.0,172774.0,176988.0,181202.0,185416.0,189630.0,193844.0,198058.0,202272.0,206486.0,210700.0,214914.0,219128.0,223342.0,227556.0,231770.0,235984.0,240198.0,244412.0,248626.0,252840.0,257054.0,261268.0,265482.0,269696.0,273910.0,278124.0,282338.0,286552.0,290766.0,294980.0,299194.0,303408.0,307622.0,311836.0,316050.0,320264.0,324478.0,328692.0,332906.0,337120.0,341334.0,345548.0,349762.0,353976.0,358190.0,362404.0,366618.0,370832.0,375046.0,379260.0,383474.0,387688.0,391902.0,396116.0,400330.0,404544.0,408758.0,412972.0,417186.0,421400.0],"times":[1011198.0,1972340.0,2899703.0,3910234.0,4997795.0,5873522.0,6890717.0,7723415.0,8817830.0,9603213.0,10633310.0,11694572.0,13042587.0,13714295.0,14660264.0,15695536.0,16447413.0,17437838.0,18542948.0,19385942.0,20445387.0,21424450.0,22490306.0,23445464.0,24534627.0,25572758.0,26409648.0,27388093.0,28209104.0,29944435.0,30397883.0,30825983.0,32064210.0,32904913.0,34619161.0,37663029.0,36508141.0,37190154.0,38262494.0,39342983.0,40676949.0,40910801.0,42952052.0,46222173.0,44030574.0,44860676.0,46230636.0,47003208.0,48116380.0,52504124.0,51788995.0,51688006.0,52023962.0,52657502.0,53726272.0,54445947.0,57178936.0,58564304.0,58073336.0,58664112.0,60006776.0,63697787.0,61710297.0,62302402.0,63771043.0,64599191.0,65141229.0,66662541.0,67506885.0,68261185.0,69815319.0,70654752.0,72256091.0,72683228.0,73498489.0,74272439.0,75024682.0,75995540.0,76870687.0,81749673.0,96785824.0,80554032.0,80863398.0,82290966.0,83769277.0,85206570.0,84870504.0,86051863.0,86965977.0,88344341.0,89652091.0,89655832.0,91698913.0,92270464.0,91921431.0,93444521.0,95387286.0,96689876.0,97269361.0,97495833.0]}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/sensor_micro/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/sensor_micro/new/tukey.json
new file mode 100644
index 0000000..47ffdfe
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-0/serialization/sensor_micro/new/tukey.json
@@ -0,0 +1 @@
+[224.40875067583892,227.87305879385997,237.11121377524944,240.5755218932705]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1.txt b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1.txt
new file mode 100644
index 0000000..19c69ab
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1.txt
@@ -0,0 +1,65 @@
+memcap: <=7719 MiB (60% of 12866 MiB available) [systemd MemoryMax, swap off]
+Benchmarking deserialization/sensor_micro
+Benchmarking deserialization/sensor_micro: Warming up for 3.0000 s
+Benchmarking deserialization/sensor_micro: Collecting 100 samples in estimated 5.0008 s (5.3M iterations)
+Benchmarking deserialization/sensor_micro: Analyzing
+deserialization/sensor_micro
+                        time:   [924.28 ns 929.08 ns 935.37 ns]
+                        thrpt:  [95.839 MiB/s 96.489 MiB/s 96.989 MiB/s]
+Found 12 outliers among 100 measurements (12.00%)
+  6 (6.00%) high mild
+  6 (6.00%) high severe
+Benchmarking deserialization/catalog_items/1000
+Benchmarking deserialization/catalog_items/1000: Warming up for 3.0000 s
+Benchmarking deserialization/catalog_items/1000: Collecting 100 samples in estimated 7.5951 s (10k iterations)
+Benchmarking deserialization/catalog_items/1000: Analyzing
+deserialization/catalog_items/1000
+                        time:   [753.62 µs 756.18 µs 759.17 µs]
+                        thrpt:  [80.285 MiB/s 80.603 MiB/s 80.876 MiB/s]
+Found 8 outliers among 100 measurements (8.00%)
+  4 (4.00%) high mild
+  4 (4.00%) high severe
+Benchmarking deserialization/catalog_items/10000
+Benchmarking deserialization/catalog_items/10000: Warming up for 3.0000 s
+Benchmarking deserialization/catalog_items/10000: Collecting 100 samples in estimated 5.3954 s (700 iterations)
+Benchmarking deserialization/catalog_items/10000: Analyzing
+deserialization/catalog_items/10000
+                        time:   [7.5912 ms 7.6398 ms 7.6986 ms]
+                        thrpt:  [82.862 MiB/s 83.500 MiB/s 84.034 MiB/s]
+Found 12 outliers among 100 measurements (12.00%)
+  6 (6.00%) high mild
+  6 (6.00%) high severe
+
+Benchmarking serialization/sensor_micro
+Benchmarking serialization/sensor_micro: Warming up for 3.0000 s
+Benchmarking serialization/sensor_micro: Collecting 100 samples in estimated 5.0002 s (23M iterations)
+Benchmarking serialization/sensor_micro: Analyzing
+serialization/sensor_micro
+                        time:   [218.86 ns 220.50 ns 222.67 ns]
+                        thrpt:  [402.59 MiB/s 406.55 MiB/s 409.60 MiB/s]
+Found 8 outliers among 100 measurements (8.00%)
+  3 (3.00%) high mild
+  5 (5.00%) high severe
+Benchmarking serialization/catalog_items/1000
+Benchmarking serialization/catalog_items/1000: Warming up for 3.0000 s
+Benchmarking serialization/catalog_items/1000: Collecting 100 samples in estimated 5.3466 s (30k iterations)
+Benchmarking serialization/catalog_items/1000: Analyzing
+serialization/catalog_items/1000
+                        time:   [175.61 µs 177.36 µs 179.51 µs]
+                        thrpt:  [336.89 MiB/s 340.96 MiB/s 344.36 MiB/s]
+Found 14 outliers among 100 measurements (14.00%)
+  5 (5.00%) high mild
+  9 (9.00%) high severe
+Benchmarking serialization/catalog_items/10000
+Benchmarking serialization/catalog_items/10000: Warming up for 3.0000 s
+
+Warning: Unable to complete 100 samples in 5.0s. You may wish to increase target time to 9.1s, enable flat sampling, or reduce sample count to 50.
+Benchmarking serialization/catalog_items/10000: Collecting 100 samples in estimated 9.1029 s (5050 iterations)
+Benchmarking serialization/catalog_items/10000: Analyzing
+serialization/catalog_items/10000
+                        time:   [1.7775 ms 1.7862 ms 1.7959 ms]
+                        thrpt:  [352.56 MiB/s 354.46 MiB/s 356.20 MiB/s]
+Found 10 outliers among 100 measurements (10.00%)
+  5 (5.00%) high mild
+  5 (5.00%) high severe
+
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/1000/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/1000/base/benchmark.json
new file mode 100644
index 0000000..2364a25
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/1000/base/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"deserialization","function_id":"catalog_items","value_str":"1000","throughput":{"Bytes":63911},"full_id":"deserialization/catalog_items/1000","directory_name":"deserialization/catalog_items/1000","title":"deserialization/catalog_items/1000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/1000/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/1000/base/estimates.json
new file mode 100644
index 0000000..5a55673
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/1000/base/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":755267.9122115697,"upper_bound":761244.8979476038},"point_estimate":757935.6770922673,"standard_error":1534.3877125481924},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":752149.3714285714,"upper_bound":756153.64375},"point_estimate":753687.9712732919,"standard_error":1086.462287166352},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":5120.275870036793,"upper_bound":8962.901521107728},"point_estimate":6828.362854348291,"standard_error":930.6096688395135},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":753624.375595191,"upper_bound":759173.6798929155},"point_estimate":756182.9385946505,"standard_error":1417.2181586070376},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":8422.721424521107,"upper_bound":22523.88667339167},"point_estimate":15406.745807326057,"standard_error":4010.2113060147735}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/1000/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/1000/base/sample.json
new file mode 100644
index 0000000..91e77ea
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/1000/base/sample.json
@@ -0,0 +1 @@
+{"sampling_mode":"Linear","iters":[2.0,4.0,6.0,8.0,10.0,12.0,14.0,16.0,18.0,20.0,22.0,24.0,26.0,28.0,30.0,32.0,34.0,36.0,38.0,40.0,42.0,44.0,46.0,48.0,50.0,52.0,54.0,56.0,58.0,60.0,62.0,64.0,66.0,68.0,70.0,72.0,74.0,76.0,78.0,80.0,82.0,84.0,86.0,88.0,90.0,92.0,94.0,96.0,98.0,100.0,102.0,104.0,106.0,108.0,110.0,112.0,114.0,116.0,118.0,120.0,122.0,124.0,126.0,128.0,130.0,132.0,134.0,136.0,138.0,140.0,142.0,144.0,146.0,148.0,150.0,152.0,154.0,156.0,158.0,160.0,162.0,164.0,166.0,168.0,170.0,172.0,174.0,176.0,178.0,180.0,182.0,184.0,186.0,188.0,190.0,192.0,194.0,196.0,198.0,200.0],"times":[1508854.0,3013084.0,4594941.0,6085169.0,7583565.0,9043071.0,10669575.0,12249793.0,13418490.0,15145852.0,16479671.0,18187828.0,19729082.0,21065607.0,22464104.0,24052454.0,25572116.0,27016684.0,28491619.0,29860552.0,31653120.0,33384893.0,34613409.0,36589404.0,37490974.0,45181886.0,41133761.0,41699945.0,43593301.0,46724472.0,49718720.0,49219517.0,50690573.0,53624207.0,53053058.0,55077532.0,55683072.0,59016788.0,58403457.0,59779457.0,61540702.0,63486948.0,64574824.0,66218820.0,68379676.0,69343181.0,71436708.0,72104044.0,74418463.0,76004490.0,76890404.0,78822363.0,82610666.0,80948007.0,82611534.0,84219911.0,85534291.0,87833516.0,88392461.0,89962604.0,92147855.0,94653247.0,95519854.0,95979025.0,97366665.0,99460019.0,100569548.0,107606501.0,104773835.0,105300912.0,107389007.0,109155307.0,109775171.0,114055727.0,112007937.0,114658800.0,115470197.0,117921819.0,118713999.0,120984583.0,121990831.0,125325820.0,123572700.0,125856939.0,126418887.0,136403517.0,132740615.0,131705179.0,133183542.0,134475966.0,135620139.0,139082201.0,144031750.0,140771160.0,143398193.0,143611565.0,147748214.0,146653222.0,148850893.0,152473771.0]}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/1000/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/1000/base/tukey.json
new file mode 100644
index 0000000..633eace
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/1000/base/tukey.json
@@ -0,0 +1 @@
+[719373.0013098404,734602.4854596077,775214.4431923205,790443.9273420878]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/1000/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/1000/new/benchmark.json
new file mode 100644
index 0000000..2364a25
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/1000/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"deserialization","function_id":"catalog_items","value_str":"1000","throughput":{"Bytes":63911},"full_id":"deserialization/catalog_items/1000","directory_name":"deserialization/catalog_items/1000","title":"deserialization/catalog_items/1000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/1000/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/1000/new/estimates.json
new file mode 100644
index 0000000..5a55673
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/1000/new/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/1000/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/1000/new/sample.json
new file mode 100644
index 0000000..91e77ea
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/1000/new/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/1000/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/1000/new/tukey.json
new file mode 100644
index 0000000..633eace
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/1000/new/tukey.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/10000/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/10000/base/benchmark.json
new file mode 100644
index 0000000..8e57074
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/10000/base/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"deserialization","function_id":"catalog_items","value_str":"10000","throughput":{"Bytes":668911},"full_id":"deserialization/catalog_items/10000","directory_name":"deserialization/catalog_items/10000","title":"deserialization/catalog_items/10000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/10000/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/10000/base/estimates.json
new file mode 100644
index 0000000..a58ce69
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/10000/base/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/10000/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/10000/base/sample.json
new file mode 100644
index 0000000..8cc6811
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/10000/base/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/10000/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/10000/base/tukey.json
new file mode 100644
index 0000000..d004698
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/10000/base/tukey.json
@@ -0,0 +1 @@
+[7148456.821428572,7331457.410714285,7819458.982142856,8002459.571428571]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/10000/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/10000/new/benchmark.json
new file mode 100644
index 0000000..8e57074
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/10000/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"deserialization","function_id":"catalog_items","value_str":"10000","throughput":{"Bytes":668911},"full_id":"deserialization/catalog_items/10000","directory_name":"deserialization/catalog_items/10000","title":"deserialization/catalog_items/10000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/10000/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/10000/new/estimates.json
new file mode 100644
index 0000000..a58ce69
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/10000/new/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/10000/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/10000/new/sample.json
new file mode 100644
index 0000000..8cc6811
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/10000/new/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/10000/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/10000/new/tukey.json
new file mode 100644
index 0000000..d004698
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/catalog_items/10000/new/tukey.json
@@ -0,0 +1 @@
+[7148456.821428572,7331457.410714285,7819458.982142856,8002459.571428571]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/sensor_micro/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/sensor_micro/base/benchmark.json
new file mode 100644
index 0000000..8822cdb
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/sensor_micro/base/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"deserialization","function_id":"sensor_micro","value_str":null,"throughput":{"Bytes":94},"full_id":"deserialization/sensor_micro","directory_name":"deserialization/sensor_micro","title":"deserialization/sensor_micro"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/sensor_micro/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/sensor_micro/base/estimates.json
new file mode 100644
index 0000000..bc2ef5f
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/sensor_micro/base/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/sensor_micro/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/sensor_micro/base/sample.json
new file mode 100644
index 0000000..e604e6e
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/sensor_micro/base/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/sensor_micro/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/sensor_micro/base/tukey.json
new file mode 100644
index 0000000..7f8b7c1
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/sensor_micro/base/tukey.json
@@ -0,0 +1 @@
+[850.9580498759682,883.6206019541769,970.7207408294003,1003.3832929076091]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/sensor_micro/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/sensor_micro/new/benchmark.json
new file mode 100644
index 0000000..8822cdb
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/sensor_micro/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"deserialization","function_id":"sensor_micro","value_str":null,"throughput":{"Bytes":94},"full_id":"deserialization/sensor_micro","directory_name":"deserialization/sensor_micro","title":"deserialization/sensor_micro"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/sensor_micro/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/sensor_micro/new/estimates.json
new file mode 100644
index 0000000..bc2ef5f
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/sensor_micro/new/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/sensor_micro/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/sensor_micro/new/sample.json
new file mode 100644
index 0000000..e604e6e
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/sensor_micro/new/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/sensor_micro/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/sensor_micro/new/tukey.json
new file mode 100644
index 0000000..7f8b7c1
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/deserialization/sensor_micro/new/tukey.json
@@ -0,0 +1 @@
+[850.9580498759682,883.6206019541769,970.7207408294003,1003.3832929076091]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/1000/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/1000/base/benchmark.json
new file mode 100644
index 0000000..077740d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/1000/base/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"serialization","function_id":"catalog_items","value_str":"1000","throughput":{"Bytes":63411},"full_id":"serialization/catalog_items/1000","directory_name":"serialization/catalog_items/1000","title":"serialization/catalog_items/1000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/1000/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/1000/base/estimates.json
new file mode 100644
index 0000000..8e10e52
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/1000/base/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":175330.01801047122,"upper_bound":177654.7727017771},"point_estimate":176366.68763066386,"standard_error":595.9170986102508},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":174256.13521677328,"upper_bound":175042.28205128206},"point_estimate":174598.28260869565,"standard_error":199.40027674938585},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":1156.413891674069,"upper_bound":1990.1066614140498},"point_estimate":1537.1209861365571,"standard_error":203.6671933232742},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":175611.42334798057,"upper_bound":179505.81318583473},"point_estimate":177362.48539776367,"standard_error":998.1700766310381},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":3190.360229653723,"upper_bound":8644.029697669046},"point_estimate":5993.521398174369,"standard_error":1453.5906684307424}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/1000/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/1000/base/sample.json
new file mode 100644
index 0000000..5fc89f3
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/1000/base/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/1000/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/1000/base/tukey.json
new file mode 100644
index 0000000..6519639
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/1000/base/tukey.json
@@ -0,0 +1 @@
+[167601.76800414882,170669.58329381642,178850.42406626337,181918.23935593097]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/1000/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/1000/new/benchmark.json
new file mode 100644
index 0000000..077740d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/1000/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"serialization","function_id":"catalog_items","value_str":"1000","throughput":{"Bytes":63411},"full_id":"serialization/catalog_items/1000","directory_name":"serialization/catalog_items/1000","title":"serialization/catalog_items/1000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/1000/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/1000/new/estimates.json
new file mode 100644
index 0000000..8e10e52
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/1000/new/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":175330.01801047122,"upper_bound":177654.7727017771},"point_estimate":176366.68763066386,"standard_error":595.9170986102508},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":174256.13521677328,"upper_bound":175042.28205128206},"point_estimate":174598.28260869565,"standard_error":199.40027674938585},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":1156.413891674069,"upper_bound":1990.1066614140498},"point_estimate":1537.1209861365571,"standard_error":203.6671933232742},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":175611.42334798057,"upper_bound":179505.81318583473},"point_estimate":177362.48539776367,"standard_error":998.1700766310381},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":3190.360229653723,"upper_bound":8644.029697669046},"point_estimate":5993.521398174369,"standard_error":1453.5906684307424}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/1000/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/1000/new/sample.json
new file mode 100644
index 0000000..5fc89f3
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/1000/new/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/1000/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/1000/new/tukey.json
new file mode 100644
index 0000000..6519639
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/1000/new/tukey.json
@@ -0,0 +1 @@
+[167601.76800414882,170669.58329381642,178850.42406626337,181918.23935593097]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/10000/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/10000/base/benchmark.json
new file mode 100644
index 0000000..108dc8d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/10000/base/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"serialization","function_id":"catalog_items","value_str":"10000","throughput":{"Bytes":663911},"full_id":"serialization/catalog_items/10000","directory_name":"serialization/catalog_items/10000","title":"serialization/catalog_items/10000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/10000/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/10000/base/estimates.json
new file mode 100644
index 0000000..76f0deb
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/10000/base/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/10000/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/10000/base/sample.json
new file mode 100644
index 0000000..245681d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/10000/base/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/10000/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/10000/base/tukey.json
new file mode 100644
index 0000000..c22df2f
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/10000/base/tukey.json
@@ -0,0 +1 @@
+[1693560.2021236937,1728413.0214338978,1821353.8729277751,1856206.692237979]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/10000/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/10000/new/benchmark.json
new file mode 100644
index 0000000..108dc8d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/10000/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"serialization","function_id":"catalog_items","value_str":"10000","throughput":{"Bytes":663911},"full_id":"serialization/catalog_items/10000","directory_name":"serialization/catalog_items/10000","title":"serialization/catalog_items/10000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/10000/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/10000/new/estimates.json
new file mode 100644
index 0000000..76f0deb
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/10000/new/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/10000/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/10000/new/sample.json
new file mode 100644
index 0000000..245681d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/10000/new/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/10000/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/10000/new/tukey.json
new file mode 100644
index 0000000..c22df2f
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/catalog_items/10000/new/tukey.json
@@ -0,0 +1 @@
+[1693560.2021236937,1728413.0214338978,1821353.8729277751,1856206.692237979]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/sensor_micro/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/sensor_micro/base/benchmark.json
new file mode 100644
index 0000000..9ae1c29
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/sensor_micro/base/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"serialization","function_id":"sensor_micro","value_str":null,"throughput":{"Bytes":94},"full_id":"serialization/sensor_micro","directory_name":"serialization/sensor_micro","title":"serialization/sensor_micro"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/sensor_micro/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/sensor_micro/base/estimates.json
new file mode 100644
index 0000000..4d1938b
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/sensor_micro/base/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":218.94012772374248,"upper_bound":220.85943899393084},"point_estimate":219.81986277546284,"standard_error":0.4917746067486504},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":217.82431154595804,"upper_bound":218.63266641210413},"point_estimate":218.07206210432872,"standard_error":0.19850514926310636},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":1.0270850781553098,"upper_bound":2.320969834588575},"point_estimate":1.7092413171961642,"standard_error":0.3123623893531231},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":218.85878796212228,"upper_bound":222.67243368077857},"point_estimate":220.50224503053283,"standard_error":0.9864706062707079},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":2.993919768152279,"upper_bound":6.819528035375608},"point_estimate":4.943433680331043,"standard_error":1.00375186135653}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/sensor_micro/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/sensor_micro/base/sample.json
new file mode 100644
index 0000000..ebe37b4
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/sensor_micro/base/sample.json
@@ -0,0 +1 @@
+{"sampling_mode":"Linear","iters":[4506.0,9012.0,13518.0,18024.0,22530.0,27036.0,31542.0,36048.0,40554.0,45060.0,49566.0,54072.0,58578.0,63084.0,67590.0,72096.0,76602.0,81108.0,85614.0,90120.0,94626.0,99132.0,103638.0,108144.0,112650.0,117156.0,121662.0,126168.0,130674.0,135180.0,139686.0,144192.0,148698.0,153204.0,157710.0,162216.0,166722.0,171228.0,175734.0,180240.0,184746.0,189252.0,193758.0,198264.0,202770.0,207276.0,211782.0,216288.0,220794.0,225300.0,229806.0,234312.0,238818.0,243324.0,247830.0,252336.0,256842.0,261348.0,265854.0,270360.0,274866.0,279372.0,283878.0,288384.0,292890.0,297396.0,301902.0,306408.0,310914.0,315420.0,319926.0,324432.0,328938.0,333444.0,337950.0,342456.0,346962.0,351468.0,355974.0,360480.0,364986.0,369492.0,373998.0,378504.0,383010.0,387516.0,392022.0,396528.0,401034.0,405540.0,410046.0,414552.0,419058.0,423564.0,428070.0,432576.0,437082.0,441588.0,446094.0,450600.0],"times":[1000356.0,1977639.0,3163160.0,3930431.0,4917595.0,5804135.0,7186926.0,7999587.0,8824004.0,9778693.0,10704978.0,12148863.0,12687583.0,13717831.0,14854092.0,15710049.0,16741919.0,17590986.0,18609161.0,19493517.0,21145867.0,22176389.0,23038574.0,23555193.0,24563534.0,26179012.0,27002987.0,27605678.0,28202024.0,29413246.0,30396390.0,31250184.0,32181522.0,33399369.0,34272904.0,35273817.0,37080653.0,37435254.0,40002726.0,38979729.0,40810710.0,41478906.0,42747218.0,43454218.0,44204096.0,45471297.0,46231786.0,47186455.0,48395776.0,49179357.0,49985956.0,50902546.0,53007255.0,52674475.0,54251036.0,55126666.0,55846589.0,56629766.0,57944946.0,58969525.0,60593366.0,61286012.0,62283424.0,63148128.0,63726514.0,64809178.0,65360043.0,66207692.0,67599248.0,68386868.0,69627628.0,70654702.0,71497939.0,79051202.0,73648732.0,78050779.0,76586221.0,81992807.0,77486374.0,78839906.0,78953884.0,80136899.0,81702494.0,83721627.0,85035820.0,84272881.0,85208657.0,86960885.0,92147454.0,90405318.0,89244460.0,90299504.0,91377339.0,92254276.0,93352479.0,93749055.0,109346182.0,96183997.0,99986250.0,99031188.0]}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/sensor_micro/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/sensor_micro/base/tukey.json
new file mode 100644
index 0000000..74398d8
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/sensor_micro/base/tukey.json
@@ -0,0 +1 @@
+[208.31275027791963,212.8794518505179,225.05732271077994,229.6240242833782]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/sensor_micro/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/sensor_micro/new/benchmark.json
new file mode 100644
index 0000000..9ae1c29
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/sensor_micro/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"serialization","function_id":"sensor_micro","value_str":null,"throughput":{"Bytes":94},"full_id":"serialization/sensor_micro","directory_name":"serialization/sensor_micro","title":"serialization/sensor_micro"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/sensor_micro/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/sensor_micro/new/estimates.json
new file mode 100644
index 0000000..4d1938b
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/sensor_micro/new/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":218.94012772374248,"upper_bound":220.85943899393084},"point_estimate":219.81986277546284,"standard_error":0.4917746067486504},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":217.82431154595804,"upper_bound":218.63266641210413},"point_estimate":218.07206210432872,"standard_error":0.19850514926310636},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":1.0270850781553098,"upper_bound":2.320969834588575},"point_estimate":1.7092413171961642,"standard_error":0.3123623893531231},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":218.85878796212228,"upper_bound":222.67243368077857},"point_estimate":220.50224503053283,"standard_error":0.9864706062707079},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":2.993919768152279,"upper_bound":6.819528035375608},"point_estimate":4.943433680331043,"standard_error":1.00375186135653}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/sensor_micro/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/sensor_micro/new/sample.json
new file mode 100644
index 0000000..ebe37b4
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/sensor_micro/new/sample.json
@@ -0,0 +1 @@
+{"sampling_mode":"Linear","iters":[4506.0,9012.0,13518.0,18024.0,22530.0,27036.0,31542.0,36048.0,40554.0,45060.0,49566.0,54072.0,58578.0,63084.0,67590.0,72096.0,76602.0,81108.0,85614.0,90120.0,94626.0,99132.0,103638.0,108144.0,112650.0,117156.0,121662.0,126168.0,130674.0,135180.0,139686.0,144192.0,148698.0,153204.0,157710.0,162216.0,166722.0,171228.0,175734.0,180240.0,184746.0,189252.0,193758.0,198264.0,202770.0,207276.0,211782.0,216288.0,220794.0,225300.0,229806.0,234312.0,238818.0,243324.0,247830.0,252336.0,256842.0,261348.0,265854.0,270360.0,274866.0,279372.0,283878.0,288384.0,292890.0,297396.0,301902.0,306408.0,310914.0,315420.0,319926.0,324432.0,328938.0,333444.0,337950.0,342456.0,346962.0,351468.0,355974.0,360480.0,364986.0,369492.0,373998.0,378504.0,383010.0,387516.0,392022.0,396528.0,401034.0,405540.0,410046.0,414552.0,419058.0,423564.0,428070.0,432576.0,437082.0,441588.0,446094.0,450600.0],"times":[1000356.0,1977639.0,3163160.0,3930431.0,4917595.0,5804135.0,7186926.0,7999587.0,8824004.0,9778693.0,10704978.0,12148863.0,12687583.0,13717831.0,14854092.0,15710049.0,16741919.0,17590986.0,18609161.0,19493517.0,21145867.0,22176389.0,23038574.0,23555193.0,24563534.0,26179012.0,27002987.0,27605678.0,28202024.0,29413246.0,30396390.0,31250184.0,32181522.0,33399369.0,34272904.0,35273817.0,37080653.0,37435254.0,40002726.0,38979729.0,40810710.0,41478906.0,42747218.0,43454218.0,44204096.0,45471297.0,46231786.0,47186455.0,48395776.0,49179357.0,49985956.0,50902546.0,53007255.0,52674475.0,54251036.0,55126666.0,55846589.0,56629766.0,57944946.0,58969525.0,60593366.0,61286012.0,62283424.0,63148128.0,63726514.0,64809178.0,65360043.0,66207692.0,67599248.0,68386868.0,69627628.0,70654702.0,71497939.0,79051202.0,73648732.0,78050779.0,76586221.0,81992807.0,77486374.0,78839906.0,78953884.0,80136899.0,81702494.0,83721627.0,85035820.0,84272881.0,85208657.0,86960885.0,92147454.0,90405318.0,89244460.0,90299504.0,91377339.0,92254276.0,93352479.0,93749055.0,109346182.0,96183997.0,99986250.0,99031188.0]}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/sensor_micro/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/sensor_micro/new/tukey.json
new file mode 100644
index 0000000..74398d8
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-1/serialization/sensor_micro/new/tukey.json
@@ -0,0 +1 @@
+[208.31275027791963,212.8794518505179,225.05732271077994,229.6240242833782]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2.txt b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2.txt
new file mode 100644
index 0000000..1b329dd
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2.txt
@@ -0,0 +1,63 @@
+memcap: <=7723 MiB (60% of 12872 MiB available) [systemd MemoryMax, swap off]
+Benchmarking deserialization/sensor_micro
+Benchmarking deserialization/sensor_micro: Warming up for 3.0000 s
+Benchmarking deserialization/sensor_micro: Collecting 100 samples in estimated 5.0013 s (5.2M iterations)
+Benchmarking deserialization/sensor_micro: Analyzing
+deserialization/sensor_micro
+                        time:   [940.34 ns 946.31 ns 953.13 ns]
+                        thrpt:  [94.054 MiB/s 94.732 MiB/s 95.333 MiB/s]
+Found 7 outliers among 100 measurements (7.00%)
+  2 (2.00%) high mild
+  5 (5.00%) high severe
+Benchmarking deserialization/catalog_items/1000
+Benchmarking deserialization/catalog_items/1000: Warming up for 3.0000 s
+Benchmarking deserialization/catalog_items/1000: Collecting 100 samples in estimated 8.5400 s (10k iterations)
+Benchmarking deserialization/catalog_items/1000: Analyzing
+deserialization/catalog_items/1000
+                        time:   [786.77 µs 807.70 µs 834.13 µs]
+                        thrpt:  [73.071 MiB/s 75.461 MiB/s 77.469 MiB/s]
+Found 17 outliers among 100 measurements (17.00%)
+  6 (6.00%) high mild
+  11 (11.00%) high severe
+Benchmarking deserialization/catalog_items/10000
+Benchmarking deserialization/catalog_items/10000: Warming up for 3.0000 s
+Benchmarking deserialization/catalog_items/10000: Collecting 100 samples in estimated 5.0914 s (600 iterations)
+Benchmarking deserialization/catalog_items/10000: Analyzing
+deserialization/catalog_items/10000
+                        time:   [8.5072 ms 8.7586 ms 9.0397 ms]
+                        thrpt:  [70.569 MiB/s 72.834 MiB/s 74.986 MiB/s]
+Found 10 outliers among 100 measurements (10.00%)
+  7 (7.00%) high mild
+  3 (3.00%) high severe
+
+Benchmarking serialization/sensor_micro
+Benchmarking serialization/sensor_micro: Warming up for 3.0000 s
+Benchmarking serialization/sensor_micro: Collecting 100 samples in estimated 5.0010 s (21M iterations)
+Benchmarking serialization/sensor_micro: Analyzing
+serialization/sensor_micro
+                        time:   [233.23 ns 238.14 ns 243.82 ns]
+                        thrpt:  [367.67 MiB/s 376.45 MiB/s 384.36 MiB/s]
+Found 17 outliers among 100 measurements (17.00%)
+  7 (7.00%) high mild
+  10 (10.00%) high severe
+Benchmarking serialization/catalog_items/1000
+Benchmarking serialization/catalog_items/1000: Warming up for 3.0000 s
+Benchmarking serialization/catalog_items/1000: Collecting 100 samples in estimated 5.6783 s (30k iterations)
+Benchmarking serialization/catalog_items/1000: Analyzing
+serialization/catalog_items/1000
+                        time:   [187.80 µs 192.49 µs 197.96 µs]
+                        thrpt:  [305.49 MiB/s 314.16 MiB/s 322.02 MiB/s]
+Found 7 outliers among 100 measurements (7.00%)
+  4 (4.00%) high mild
+  3 (3.00%) high severe
+Benchmarking serialization/catalog_items/10000
+Benchmarking serialization/catalog_items/10000: Warming up for 3.0000 s
+Benchmarking serialization/catalog_items/10000: Collecting 100 samples in estimated 5.1503 s (2600 iterations)
+Benchmarking serialization/catalog_items/10000: Analyzing
+serialization/catalog_items/10000
+                        time:   [1.9548 ms 2.0031 ms 2.0572 ms]
+                        thrpt:  [307.77 MiB/s 316.08 MiB/s 323.89 MiB/s]
+Found 9 outliers among 100 measurements (9.00%)
+  3 (3.00%) high mild
+  6 (6.00%) high severe
+
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/1000/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/1000/base/benchmark.json
new file mode 100644
index 0000000..2364a25
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/1000/base/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"deserialization","function_id":"catalog_items","value_str":"1000","throughput":{"Bytes":63911},"full_id":"deserialization/catalog_items/1000","directory_name":"deserialization/catalog_items/1000","title":"deserialization/catalog_items/1000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/1000/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/1000/base/estimates.json
new file mode 100644
index 0000000..97b1ebd
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/1000/base/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":810879.8038770421,"upper_bound":869875.0313530246},"point_estimate":838664.3794978337,"standard_error":15081.495606727294},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":760451.9489795918,"upper_bound":779491.6904761905},"point_estimate":765709.0471544715,"standard_error":4538.946370901184},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":10880.290713059092,"upper_bound":40302.08436347998},"point_estimate":19969.132679074162,"standard_error":6679.802776459851},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":786773.5595265846,"upper_bound":834127.1992737168},"point_estimate":807702.4810492094,"standard_error":12147.76988278856},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":108018.63995977645,"upper_bound":187782.25611710188},"point_estimate":151537.04446412332,"standard_error":20436.00338262761}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/1000/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/1000/base/sample.json
new file mode 100644
index 0000000..e98bb8e
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/1000/base/sample.json
@@ -0,0 +1 @@
+{"sampling_mode":"Linear","iters":[2.0,4.0,6.0,8.0,10.0,12.0,14.0,16.0,18.0,20.0,22.0,24.0,26.0,28.0,30.0,32.0,34.0,36.0,38.0,40.0,42.0,44.0,46.0,48.0,50.0,52.0,54.0,56.0,58.0,60.0,62.0,64.0,66.0,68.0,70.0,72.0,74.0,76.0,78.0,80.0,82.0,84.0,86.0,88.0,90.0,92.0,94.0,96.0,98.0,100.0,102.0,104.0,106.0,108.0,110.0,112.0,114.0,116.0,118.0,120.0,122.0,124.0,126.0,128.0,130.0,132.0,134.0,136.0,138.0,140.0,142.0,144.0,146.0,148.0,150.0,152.0,154.0,156.0,158.0,160.0,162.0,164.0,166.0,168.0,170.0,172.0,174.0,176.0,178.0,180.0,182.0,184.0,186.0,188.0,190.0,192.0,194.0,196.0,198.0,200.0],"times":[1580519.0,3001671.0,4559125.0,11447377.0,14242939.0,9906950.0,10535352.0,12182538.0,13814348.0,15195122.0,16573300.0,18080153.0,19618365.0,21465455.0,22973431.0,29061904.0,33136309.0,27374890.0,40961265.0,44956732.0,33450118.0,33445439.0,34944267.0,36311179.0,37783730.0,43067316.0,42515661.0,50641711.0,43619871.0,48608533.0,60177781.0,48939857.0,56699197.0,72734159.0,52791947.0,54670460.0,55651591.0,72805149.0,58679094.0,67692977.0,62782239.0,63823370.0,82714452.0,119581348.0,68100042.0,70501246.0,86913799.0,73443279.0,74884469.0,93039032.0,97774964.0,134763575.0,116901215.0,92113462.0,84348710.0,88350549.0,96553350.0,118297565.0,97504700.0,97785167.0,94091457.0,94221766.0,98215953.0,96106551.0,101726136.0,99265176.0,103700145.0,149319283.0,174099667.0,149339184.0,107569394.0,109569152.0,110956586.0,111571147.0,112366334.0,118011459.0,115836340.0,117833368.0,119952478.0,122785935.0,128068015.0,125398333.0,125183584.0,138420357.0,127517284.0,129711287.0,131677699.0,132266583.0,135310228.0,142680686.0,147964637.0,138869824.0,141307172.0,141873528.0,144680863.0,146104196.0,145950184.0,149048582.0,149663170.0,164442921.0]}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/1000/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/1000/base/tukey.json
new file mode 100644
index 0000000..e7da9ce
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/1000/base/tukey.json
@@ -0,0 +1 @@
+[528373.0018429486,642497.037900641,946827.800721154,1060951.8367788463]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/1000/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/1000/new/benchmark.json
new file mode 100644
index 0000000..2364a25
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/1000/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"deserialization","function_id":"catalog_items","value_str":"1000","throughput":{"Bytes":63911},"full_id":"deserialization/catalog_items/1000","directory_name":"deserialization/catalog_items/1000","title":"deserialization/catalog_items/1000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/1000/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/1000/new/estimates.json
new file mode 100644
index 0000000..97b1ebd
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/1000/new/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/1000/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/1000/new/sample.json
new file mode 100644
index 0000000..e98bb8e
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/1000/new/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/1000/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/1000/new/tukey.json
new file mode 100644
index 0000000..e7da9ce
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/1000/new/tukey.json
@@ -0,0 +1 @@
+[528373.0018429486,642497.037900641,946827.800721154,1060951.8367788463]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/10000/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/10000/base/benchmark.json
new file mode 100644
index 0000000..8e57074
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/10000/base/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"deserialization","function_id":"catalog_items","value_str":"10000","throughput":{"Bytes":668911},"full_id":"deserialization/catalog_items/10000","directory_name":"deserialization/catalog_items/10000","title":"deserialization/catalog_items/10000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/10000/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/10000/base/estimates.json
new file mode 100644
index 0000000..8954f2d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/10000/base/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/10000/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/10000/base/sample.json
new file mode 100644
index 0000000..444ca29
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/10000/base/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/10000/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/10000/base/tukey.json
new file mode 100644
index 0000000..b87606f
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/10000/base/tukey.json
@@ -0,0 +1 @@
+[4386942.375,6145114.875,10833574.875,12591747.375]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/10000/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/10000/new/benchmark.json
new file mode 100644
index 0000000..8e57074
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/10000/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"deserialization","function_id":"catalog_items","value_str":"10000","throughput":{"Bytes":668911},"full_id":"deserialization/catalog_items/10000","directory_name":"deserialization/catalog_items/10000","title":"deserialization/catalog_items/10000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/10000/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/10000/new/estimates.json
new file mode 100644
index 0000000..8954f2d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/10000/new/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/10000/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/10000/new/sample.json
new file mode 100644
index 0000000..444ca29
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/10000/new/sample.json
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/10000/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/10000/new/tukey.json
new file mode 100644
index 0000000..b87606f
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/catalog_items/10000/new/tukey.json
@@ -0,0 +1 @@
+[4386942.375,6145114.875,10833574.875,12591747.375]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/sensor_micro/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/sensor_micro/base/benchmark.json
new file mode 100644
index 0000000..8822cdb
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/sensor_micro/base/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"deserialization","function_id":"sensor_micro","value_str":null,"throughput":{"Bytes":94},"full_id":"deserialization/sensor_micro","directory_name":"deserialization/sensor_micro","title":"deserialization/sensor_micro"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/sensor_micro/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/sensor_micro/base/estimates.json
new file mode 100644
index 0000000..a15ec75
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/sensor_micro/base/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":946.7973302922658,"upper_bound":968.597144024021},"point_estimate":956.6722523759613,"standard_error":5.5879327586075895},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":934.2925158070581,"upper_bound":945.0725048923679},"point_estimate":937.0844748858448,"standard_error":2.603893285634167},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":13.67314680483784,"upper_bound":26.814422553207596},"point_estimate":19.722146073985723,"standard_error":3.3530790197268536},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":940.3432814905588,"upper_bound":953.1268145769268},"point_estimate":946.3075725034898,"standard_error":3.2532641675967513},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":31.873338431347243,"upper_bound":80.01590514167506},"point_estimate":56.01941758096357,"standard_error":13.142959702468016}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/sensor_micro/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/sensor_micro/base/sample.json
new file mode 100644
index 0000000..e385132
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/sensor_micro/base/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/sensor_micro/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/sensor_micro/base/tukey.json
new file mode 100644
index 0000000..e3ce3e5
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/sensor_micro/base/tukey.json
@@ -0,0 +1 @@
+[824.6295050906843,876.4790263423215,1014.7444163466871,1066.5939375983241]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/sensor_micro/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/sensor_micro/new/benchmark.json
new file mode 100644
index 0000000..8822cdb
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/sensor_micro/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"deserialization","function_id":"sensor_micro","value_str":null,"throughput":{"Bytes":94},"full_id":"deserialization/sensor_micro","directory_name":"deserialization/sensor_micro","title":"deserialization/sensor_micro"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/sensor_micro/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/sensor_micro/new/estimates.json
new file mode 100644
index 0000000..a15ec75
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/sensor_micro/new/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/sensor_micro/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/sensor_micro/new/sample.json
new file mode 100644
index 0000000..e385132
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/sensor_micro/new/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/sensor_micro/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/sensor_micro/new/tukey.json
new file mode 100644
index 0000000..e3ce3e5
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/deserialization/sensor_micro/new/tukey.json
@@ -0,0 +1 @@
+[824.6295050906843,876.4790263423215,1014.7444163466871,1066.5939375983241]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/1000/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/1000/base/benchmark.json
new file mode 100644
index 0000000..077740d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/1000/base/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"serialization","function_id":"catalog_items","value_str":"1000","throughput":{"Bytes":63411},"full_id":"serialization/catalog_items/1000","directory_name":"serialization/catalog_items/1000","title":"serialization/catalog_items/1000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/1000/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/1000/base/estimates.json
new file mode 100644
index 0000000..857ec74
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/1000/base/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":185458.17629718376,"upper_bound":193275.84748335826},"point_estimate":189109.25035382443,"standard_error":2003.3589911904198},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":179886.11111111112,"upper_bound":183850.2462962963},"point_estimate":181257.15490196078,"standard_error":1199.434140306073},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":5078.12870019021,"upper_bound":10917.735613224602},"point_estimate":7173.373803516724,"standard_error":1540.914980103859},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":187795.41104245177,"upper_bound":197956.12098392597},"point_estimate":192492.89759519236,"standard_error":2601.4044056878756},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":12816.49795238994,"upper_bound":26342.529115714224},"point_estimate":20156.726140512084,"standard_error":3436.615558152624}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/1000/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/1000/base/sample.json
new file mode 100644
index 0000000..d5d41e9
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/1000/base/sample.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/1000/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/1000/base/tukey.json
new file mode 100644
index 0000000..57f74d4
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/1000/base/tukey.json
@@ -0,0 +1 @@
+[130598.0729414165,154200.67311286513,217140.9402367281,240743.54040817672]
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/1000/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/1000/new/benchmark.json
new file mode 100644
index 0000000..077740d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/1000/new/benchmark.json
@@ -0,0 +1 @@
+{"group_id":"serialization","function_id":"catalog_items","value_str":"1000","throughput":{"Bytes":63411},"full_id":"serialization/catalog_items/1000","directory_name":"serialization/catalog_items/1000","title":"serialization/catalog_items/1000"}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/1000/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/1000/new/estimates.json
new file mode 100644
index 0000000..857ec74
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/1000/new/estimates.json
@@ -0,0 +1 @@
+{"mean":{"confidence_interval":{"confidence_level":0.95,"lower_bound":185458.17629718376,"upper_bound":193275.84748335826},"point_estimate":189109.25035382443,"standard_error":2003.3589911904198},"median":{"confidence_interval":{"confidence_level":0.95,"lower_bound":179886.11111111112,"upper_bound":183850.2462962963},"point_estimate":181257.15490196078,"standard_error":1199.434140306073},"median_abs_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":5078.12870019021,"upper_bound":10917.735613224602},"point_estimate":7173.373803516724,"standard_error":1540.914980103859},"slope":{"confidence_interval":{"confidence_level":0.95,"lower_bound":187795.41104245177,"upper_bound":197956.12098392597},"point_estimate":192492.89759519236,"standard_error":2601.4044056878756},"std_dev":{"confidence_interval":{"confidence_level":0.95,"lower_bound":12816.49795238994,"upper_bound":26342.529115714224},"point_estimate":20156.726140512084,"standard_error":3436.615558152624}}
\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/1000/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/1000/new/sample.json
new file mode 100644
index 0000000..d5d41e9
--- /dev/null
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/1000/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/1000/new/tukey.json
new file mode 100644
index 0000000..57f74d4
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/1000/new/tukey.json
@@ -0,0 +1 @@
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/10000/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/10000/base/benchmark.json
new file mode 100644
index 0000000..108dc8d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/10000/base/benchmark.json
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/10000/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/10000/base/estimates.json
new file mode 100644
index 0000000..eb1266e
--- /dev/null
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/10000/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/10000/base/sample.json
new file mode 100644
index 0000000..6746492
--- /dev/null
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/10000/base/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/10000/base/tukey.json
new file mode 100644
index 0000000..bb27f1c
--- /dev/null
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@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/10000/new/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/10000/new/benchmark.json
new file mode 100644
index 0000000..108dc8d
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/10000/new/benchmark.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/10000/new/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/10000/new/estimates.json
new file mode 100644
index 0000000..eb1266e
--- /dev/null
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/10000/new/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/10000/new/sample.json
new file mode 100644
index 0000000..6746492
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/10000/new/tukey.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/catalog_items/10000/new/tukey.json
new file mode 100644
index 0000000..bb27f1c
--- /dev/null
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@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/sensor_micro/base/benchmark.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/sensor_micro/base/benchmark.json
new file mode 100644
index 0000000..9ae1c29
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/sensor_micro/base/benchmark.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/sensor_micro/base/estimates.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/sensor_micro/base/estimates.json
new file mode 100644
index 0000000..99ea463
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/sensor_micro/base/estimates.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/sensor_micro/base/sample.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/sensor_micro/base/sample.json
new file mode 100644
index 0000000..081288b
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/current-2/serialization/sensor_micro/base/sample.json
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/harness.rs b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/harness.rs
new file mode 100644
index 0000000..073ad98
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/harness.rs
@@ -0,0 +1,172 @@
+use std::hint::black_box;
+
+use criterion::{criterion_group, criterion_main, BenchmarkId, Criterion, Throughput};
+use polyxml::schema::{FieldKind, FieldSchema, ModelSchema, ScalarType, ValueType};
+use polyxml::{deserialize, serialize};
+use std::sync::Arc;
+
+fn build_sensor_fixture() -> (Arc<ModelSchema>, Vec<u8>) {
+    let schema = ModelSchema::builder("Sensor")
+        .field(FieldSchema::new(
+            "id",
+            b"id",
+            FieldKind::Attribute,
+            ValueType::Scalar(ScalarType::Int),
+        ))
+        .field(FieldSchema::new(
+            "temp",
+            b"temp",
+            FieldKind::Element,
+            ValueType::Scalar(ScalarType::Float),
+        ))
+        .field(FieldSchema::new(
+            "status",
+            b"status",
+            FieldKind::Element,
+            ValueType::Scalar(ScalarType::String),
+        ))
+        .field(FieldSchema::new(
+            "active",
+            b"active",
+            FieldKind::Element,
+            ValueType::Scalar(ScalarType::Bool),
+        ))
+        .build();
+
+    let xml = br#"<Sensor id="1001"><temp>23.75</temp><status>OPERATIONAL</status><active>true</active></Sensor>"#.to_vec();
+    let value = deserialize(&xml, Arc::clone(&schema)).unwrap();
+    let output = serialize("Sensor", &value, &schema, None).unwrap();
+    assert_eq!(value, deserialize(&output, Arc::clone(&schema)).unwrap());
+    (schema, xml)
+}
+
+fn build_catalog_fixture(count: usize) -> (Arc<ModelSchema>, Vec<u8>) {
+    let item_schema = ModelSchema::builder("Item")
+        .field(FieldSchema::new(
+            "id",
+            b"id",
+            FieldKind::Attribute,
+            ValueType::Scalar(ScalarType::Int),
+        ))
+        .field(FieldSchema::new(
+            "name",
+            b"name",
+            FieldKind::Element,
+            ValueType::Scalar(ScalarType::String),
+        ))
+        .field(FieldSchema::new(
+            "price",
+            b"price",
+            FieldKind::Element,
+            ValueType::Scalar(ScalarType::Float),
+        ))
+        .build();
+
+    let catalog_schema = ModelSchema::builder("Catalog")
+        .field(FieldSchema::new(
+            "items",
+            b"item",
+            FieldKind::Element,
+            ValueType::List(Box::new(ValueType::Nested(item_schema))),
+        ))
+        .build();
+
+    let mut xml = String::with_capacity(count * 64 + 32);
+    xml.push_str("<Catalog>");
+    for i in 0..count {
+        use std::fmt::Write;
+        write!(
+            xml,
+            r#"<item id="{i}"><name>Part-{i}</name><price>{:.2}</price></item>"#,
+            (i as f64) * 1.25
+        )
+        .unwrap();
+    }
+    xml.push_str("</Catalog>");
+
+    let xml = xml.into_bytes();
+    let value = deserialize(&xml, Arc::clone(&catalog_schema)).unwrap();
+    assert_eq!(value.get("items").unwrap().as_list().unwrap().len(), count);
+    let output = serialize("Catalog", &value, &catalog_schema, None).unwrap();
+    assert_eq!(value, deserialize(&output, Arc::clone(&catalog_schema)).unwrap());
+    (catalog_schema, xml)
+}
+
+fn bench_deserialization(c: &mut Criterion) {
+    let mut group = c.benchmark_group("deserialization");
+
+    // 1. Sensor Telemetry (Micro)
+    {
+        let (schema, xml) = build_sensor_fixture();
+        group.throughput(Throughput::Bytes(xml.len() as u64));
+        group.bench_function("sensor_micro", |b| {
+            b.iter(|| {
+                let res = deserialize(black_box(&xml), Arc::clone(&schema)).unwrap();
+                black_box(res);
+            });
+        });
+    }
+
+    // 2. Catalog Batch (1,000 and 10,000 items)
+    for &count in &[1_000, 10_000] {
+        let (schema, xml) = build_catalog_fixture(count);
+        group.throughput(Throughput::Bytes(xml.len() as u64));
+        group.bench_with_input(BenchmarkId::new("catalog_items", count), &count, |b, _| {
+            b.iter(|| {
+                let res = deserialize(black_box(&xml), Arc::clone(&schema)).unwrap();
+                black_box(res);
+            });
+        });
+    }
+
+    group.finish();
+}
+
+fn bench_serialization(c: &mut Criterion) {
+    let mut group = c.benchmark_group("serialization");
+
+    // 1. Sensor Telemetry (Micro)
+    {
+        let (schema, xml) = build_sensor_fixture();
+        let val = deserialize(&xml, Arc::clone(&schema)).unwrap();
+        let expected_bytes = serialize("Sensor", &val, &schema, None).unwrap();
+        group.throughput(Throughput::Bytes(expected_bytes.len() as u64));
+        group.bench_function("sensor_micro", |b| {
+            b.iter(|| {
+                let res = serialize(
+                    black_box("Sensor"),
+                    black_box(&val),
+                    black_box(&schema),
+                    black_box(None),
+                )
+                .unwrap();
+                black_box(res);
+            });
+        });
+    }
+
+    // 2. Catalog Batch (1,000 and 10,000 items)
+    for &count in &[1_000, 10_000] {
+        let (schema, xml) = build_catalog_fixture(count);
+        let val = deserialize(&xml, Arc::clone(&schema)).unwrap();
+        let expected_bytes = serialize("Catalog", &val, &schema, None).unwrap();
+        group.throughput(Throughput::Bytes(expected_bytes.len() as u64));
+        group.bench_with_input(BenchmarkId::new("catalog_items", count), &count, |b, _| {
+            b.iter(|| {
+                let res = serialize(
+                    black_box("Catalog"),
+                    black_box(&val),
+                    black_box(&schema),
+                    black_box(None),
+                )
+                .unwrap();
+                black_box(res);
+            });
+        });
+    }
+
+    group.finish();
+}
+
+criterion_group!(benches, bench_deserialization, bench_serialization);
+criterion_main!(benches);
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/metadata.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/metadata.json
new file mode 100644
index 0000000..219edbb
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/metadata.json
@@ -0,0 +1,19 @@
+{
+  "revisions": {
+    "baseline": "1819c91b0808b9242c642d82350d2b657b60108c",
+    "current": "75358852f7a26fa4a98193a506e4cebce375101b"
+  },
+  "core_status": {
+    "baseline": "",
+    "current": ""
+  },
+  "sample_size": 100,
+  "warmup_seconds": 3.0,
+  "measurement_seconds": 5.0,
+  "rounds": 3,
+  "filter": "",
+  "order": "alternate baseline/current per round",
+  "os": "Linux-6.18.40.1-microsoft-standard-WSL2-x86_64-with-glibc2.43",
+  "cpu": "11th Gen Intel(R) Core(TM) i5-11600K @ 3.90GHz",
+  "rustc": "rustc 1.99.0 (b940084d7 2026-09-28)\nbinary: rustc\ncommit-hash: b940084d7eb6a299eb4bfeb8e34901bc051e7ac4\ncommit-date: 2026-09-28\nhost: x86_64-unknown-linux-gnu\nrelease: 1.99.0\nLLVM version: 23.1.1\n"
+}
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/summary.json b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/summary.json
new file mode 100644
index 0000000..a2e9c12
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute-core/summary.json
@@ -0,0 +1,428 @@
+{
+  "deserialization/catalog_items/1000": {
+    "baseline_ns": 789190.6971912745,
+    "candidate_ns": 761319.7858169902,
+    "delta_percent": -3.5315813368653193,
+    "speedup": 1.0366086786308533,
+    "process_deltas_percent": [
+      -4.711243746888838,
+      -3.5251133686206026,
+      6.268913518955022
+    ],
+    "process_estimates": {
+      "baseline": [
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 791295.5965576116,
+            "upper_bound": 807947.6041901344
+          },
+          "point_estimate": 798960.7753875297,
+          "standard_error": 4273.780934670834
+        },
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 782207.1240353667,
+            "upper_bound": 789859.4677298237
+          },
+          "point_estimate": 785630.0261727816,
+          "standard_error": 1968.1546199716377
+        },
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 784670.0418452171,
+            "upper_bound": 794608.2931641726
+          },
+          "point_estimate": 789190.6971912745,
+          "standard_error": 2547.8518144736636
+        }
+      ],
+      "current": [
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 756728.0802774625,
+            "upper_bound": 766504.6790133109
+          },
+          "point_estimate": 761319.7858169902,
+          "standard_error": 2497.2585789894356
+        },
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 755267.9122115697,
+            "upper_bound": 761244.8979476038
+          },
+          "point_estimate": 757935.6770922673,
+          "standard_error": 1534.3877125481924
+        },
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 810879.8038770421,
+            "upper_bound": 869875.0313530246
+          },
+          "point_estimate": 838664.3794978337,
+          "standard_error": 15081.495606727294
+        }
+      ]
+    }
+  },
+  "deserialization/catalog_items/10000": {
+    "baseline_ns": 7955338.324285713,
+    "candidate_ns": 7639783.394285714,
+    "delta_percent": -3.966580893696081,
+    "speedup": 1.0413041723455174,
+    "process_deltas_percent": [
+      -3.670399722742368,
+      -4.759165915803598,
+      10.09729278173821
+    ],
+    "process_estimates": {
+      "baseline": [
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 7859090.189785714,
+            "upper_bound": 7910400.333928573
+          },
+          "point_estimate": 7883168.992857142,
+          "standard_error": 13119.369239789283
+        },
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 7965814.913642855,
+            "upper_bound": 8095452.980607144
+          },
+          "point_estimate": 8021541.881428573,
+          "standard_error": 33446.03678910466
+        },
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 7902489.854464282,
+            "upper_bound": 8017853.829928573
+          },
+          "point_estimate": 7955338.324285713,
+          "standard_error": 29489.23673649763
+        }
+      ],
+      "current": [
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 7556777.279499999,
+            "upper_bound": 7636154.168964284
+          },
+          "point_estimate": 7593825.180000002,
+          "standard_error": 20268.69762123049
+        },
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 7591228.896964289,
+            "upper_bound": 7698633.972214286
+          },
+          "point_estimate": 7639783.394285714,
+          "standard_error": 27456.313528432333
+        },
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 8507238.590625,
+            "upper_bound": 9039663.217625005
+          },
+          "point_estimate": 8758612.126666667,
+          "standard_error": 136002.5850296333
+        }
+      ]
+    }
+  },
+  "deserialization/sensor_micro": {
+    "baseline_ns": 974.9037588771275,
+    "candidate_ns": 935.0887837201394,
+    "delta_percent": -4.083990321551956,
+    "speedup": 1.0425788180225934,
+    "process_deltas_percent": [
+      -4.996469041539175,
+      -4.083990321551956,
+      -1.680239476090306
+    ],
+    "process_estimates": {
+      "baseline": [
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 973.2773408808249,
+            "upper_bound": 987.1525007643144
+          },
+          "point_estimate": 979.630731620905,
+          "standard_error": 3.5424192383632445
+        },
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 969.0310798274186,
+            "upper_bound": 981.753606361157
+          },
+          "point_estimate": 974.9037588771275,
+          "standard_error": 3.2562537365579494
+        },
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 969.0449856731873,
+            "upper_bound": 977.4409164247452
+          },
+          "point_estimate": 973.0213410592216,
+          "standard_error": 2.1494153276342978
+        }
+      ],
+      "current": [
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 926.0840733100691,
+            "upper_bound": 936.0275796270612
+          },
+          "point_estimate": 930.6837853940627,
+          "standard_error": 2.5428616470966214
+        },
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 929.509056727409,
+            "upper_bound": 941.4018995927825
+          },
+          "point_estimate": 935.0887837201394,
+          "standard_error": 3.0384765743760327
+        },
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 946.7973302922658,
+            "upper_bound": 968.597144024021
+          },
+          "point_estimate": 956.6722523759613,
+          "standard_error": 5.5879327586075895
+        }
+      ]
+    }
+  },
+  "serialization/catalog_items/1000": {
+    "baseline_ns": 178343.2537327712,
+    "candidate_ns": 176366.68763066386,
+    "delta_percent": -1.1082931710268196,
+    "speedup": 1.011207139673942,
+    "process_deltas_percent": [
+      -1.2799216769740607,
+      -1.1518720044225494,
+      6.069539457387418
+    ],
+    "process_estimates": {
+      "baseline": [
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 177514.9710052003,
+            "upper_bound": 179277.37352094788
+          },
+          "point_estimate": 178343.2537327712,
+          "standard_error": 449.2748334644314
+        },
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 177589.12502072455,
+            "upper_bound": 179466.28443194425
+          },
+          "point_estimate": 178421.87930817937,
+          "standard_error": 482.11121204347234
+        },
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 177309.1110682692,
+            "upper_bound": 179616.67478112257
+          },
+          "point_estimate": 178287.9904270703,
+          "standard_error": 596.1268086997642
+        }
+      ],
+      "current": [
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 175182.82977197025,
+            "upper_bound": 177062.97592994536
+          },
+          "point_estimate": 176060.5997688246,
+          "standard_error": 480.12887266199334
+        },
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 175330.01801047122,
+            "upper_bound": 177654.7727017771
+          },
+          "point_estimate": 176366.68763066386,
+          "standard_error": 595.9170986102508
+        },
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 185458.17629718376,
+            "upper_bound": 193275.84748335826
+          },
+          "point_estimate": 189109.25035382443,
+          "standard_error": 2003.3589911904198
+        }
+      ]
+    }
+  },
+  "serialization/catalog_items/10000": {
+    "baseline_ns": 1787315.6521489527,
+    "candidate_ns": 1813755.0761269673,
+    "delta_percent": 1.4792811748851165,
+    "speedup": 0.9854228256471803,
+    "process_deltas_percent": [
+      1.7524646137370592,
+      -0.33849274678403596,
+      10.054731369187886
+    ],
+    "process_estimates": {
+      "baseline": [
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 1778406.4599728733,
+            "upper_bound": 1786994.5151738555
+          },
+          "point_estimate": 1782517.0948066665,
+          "standard_error": 2185.2456597824653
+        },
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 1781022.8666719596,
+            "upper_bound": 1794240.351775516
+          },
+          "point_estimate": 1787315.6521489527,
+          "standard_error": 3370.814409598635
+        },
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 1803586.690858,
+            "upper_bound": 1840220.847117122
+          },
+          "point_estimate": 1820118.9438290582,
+          "standard_error": 9434.505392752879
+        }
+      ],
+      "current": [
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 1789031.8361522884,
+            "upper_bound": 1848329.140955493
+          },
+          "point_estimate": 1813755.0761269673,
+          "standard_error": 15381.489562733253
+        },
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 1775013.0380311033,
+            "upper_bound": 1788333.883618734
+          },
+          "point_estimate": 1781265.7183042928,
+          "standard_error": 3402.569566411497
+        },
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 1954841.6337980772,
+            "upper_bound": 2057208.2197403847
+          },
+          "point_estimate": 2003127.0142307698,
+          "standard_error": 26135.700693011528
+        }
+      ]
+    }
+  },
+  "serialization/sensor_micro": {
+    "baseline_ns": 226.0632235067906,
+    "candidate_ns": 233.87284823826917,
+    "delta_percent": 3.454619734396558,
+    "speedup": 0.9666073903392063,
+    "process_deltas_percent": [
+      2.129924992452903,
+      -2.546333090281938,
+      9.382406765243356
+    ],
+    "process_estimates": {
+      "baseline": [
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 225.89919133709734,
+            "upper_bound": 233.20354532167548
+          },
+          "point_estimate": 228.995417607084,
+          "standard_error": 1.8917378873143864
+        },
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 224.9242009658034,
+            "upper_bound": 226.28061755410195
+          },
+          "point_estimate": 225.5634597917243,
+          "standard_error": 0.34667066643983174
+        },
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 225.0686614468257,
+            "upper_bound": 227.24277367713145
+          },
+          "point_estimate": 226.0632235067906,
+          "standard_error": 0.5554465166915109
+        }
+      ],
+      "current": [
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 232.8141189762846,
+            "upper_bound": 235.2661979103697
+          },
+          "point_estimate": 233.87284823826917,
+          "standard_error": 0.6308312312547608
+        },
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 218.94012772374248,
+            "upper_bound": 220.85943899393084
+          },
+          "point_estimate": 219.81986277546284,
+          "standard_error": 0.4917746067486504
+        },
+        {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 238.4345587927512,
+            "upper_bound": 257.3469198119103
+          },
+          "point_estimate": 247.27339468281892,
+          "standard_error": 4.8590321141351716
+        }
+      ]
+    }
+  }
+}
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute.patch b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute.patch
new file mode 100644
index 0000000..88d698b
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/combined-registry-attribute.patch
@@ -0,0 +1,231 @@
+diff --git a/crates/polyxml-core/src/parser.rs b/crates/polyxml-core/src/parser.rs
+index afc027e..43f50c0 100644
+--- a/crates/polyxml-core/src/parser.rs
++++ b/crates/polyxml-core/src/parser.rs
+@@ -154,6 +154,9 @@ fn parse_field_scalar(
+ pub struct XmlDeserializer;
+ 
+ fn is_nil_element(e: &BytesStart) -> bool {
++    if e.attributes_raw().is_empty() {
++        return false;
++    }
+     for attr in e.attributes().flatten() {
+         let raw_key = attr.key.as_ref();
+         if raw_key == "xmlns" || raw_key.starts_with("xmlns:") {
+@@ -172,6 +175,9 @@ fn is_nil_element(e: &BytesStart) -> bool {
+ /// Extend inherited namespace bindings for this element. Elements without
+ /// declarations share the existing map.
+ fn namespace_scope(parent: &NamespaceScope, e: &BytesStart) -> NamespaceScope {
++    if e.attributes_raw().is_empty() {
++        return Arc::clone(parent);
++    }
+     let mut scope = None;
+     for attr in e.attributes().flatten() {
+         let key = attr.key.as_ref();
+@@ -995,6 +1001,9 @@ impl XmlDeserializer {
+     }
+ 
+     pub(crate) fn parse_attributes(e: &BytesStart, frame: &mut StackFrame) -> Result<()> {
++        if frame.schema.attribute_map.is_empty() && frame.schema.any_attribute_field.is_none() {
++            return Ok(());
++        }
+         let mut any_attrs: Option<HashMap<String, PolyValue>> = None;
+         for attr in e.attributes().flatten() {
+             let raw_key = attr.key.as_ref();
+diff --git a/crates/polyxml-core/src/schema.rs b/crates/polyxml-core/src/schema.rs
+index 920a2a1..8724531 100644
+--- a/crates/polyxml-core/src/schema.rs
++++ b/crates/polyxml-core/src/schema.rs
+@@ -1,4 +1,5 @@
+ use std::collections::HashMap;
++use std::sync::atomic::{AtomicBool, Ordering};
+ use std::sync::{Arc, RwLock};
+ 
+ #[derive(Debug, Clone, PartialEq, Eq)]
+@@ -106,6 +107,12 @@ impl FieldSchema {
+     }
+ }
+ 
++#[derive(Debug, Default)]
++struct VariantRegistry {
++    schemas: RwLock<Vec<Arc<ModelSchema>>>,
++    populated: AtomicBool,
++}
++
+ #[derive(Debug, Clone)]
+ pub struct ModelSchema {
+     pub name: String,
+@@ -125,7 +132,7 @@ pub struct ModelSchema {
+     pub content_pattern: Option<regex::Regex>,
+     /// Concrete derivations eligible for `xsi:type` dispatch. Python may
+     /// refresh this registry when subclasses are defined after first use.
+-    variants: Arc<RwLock<Vec<Arc<ModelSchema>>>>,
++    variants: Arc<VariantRegistry>,
+ }
+ 
+ impl ModelSchema {
+@@ -136,12 +143,27 @@ impl ModelSchema {
+     /// Register the concrete derivations eligible for `xsi:type` dispatch.
+     /// Replaces the registry when subclasses are discovered after first use.
+     pub fn set_variants(&self, variants: Vec<Arc<ModelSchema>>) {
+-        *self.variants.write().unwrap_or_else(|p| p.into_inner()) = variants;
++        let mut registered = self
++            .variants
++            .schemas
++            .write()
++            .unwrap_or_else(|p| p.into_inner());
++        *registered = variants;
++        // Publish emptiness while holding the registry lock. Cloned schemas
++        // share this flag, so later registration/clearing cannot leave a stale
++        // per-schema dispatch plan. Nonempty lookups still use the lock.
++        self.variants
++            .populated
++            .store(!registered.is_empty(), Ordering::Release);
+     }
+ 
+     /// Registered derivations for `xsi:type` dispatch (empty when none).
+     pub fn variants(&self) -> Vec<Arc<ModelSchema>> {
++        if !self.has_variants() {
++            return Vec::new();
++        }
+         self.variants
++            .schemas
+             .read()
+             .unwrap_or_else(|p| p.into_inner())
+             .clone()
+@@ -149,16 +171,16 @@ impl ModelSchema {
+ 
+     /// Whether any `xsi:type` derivations are registered for this type.
+     pub fn has_variants(&self) -> bool {
+-        !self
+-            .variants
+-            .read()
+-            .unwrap_or_else(|p| p.into_inner())
+-            .is_empty()
++        self.variants.populated.load(Ordering::Acquire)
+     }
+ 
+     /// Look up a derivation by the QName local part of an `xsi:type` value.
+     pub fn find_variant(&self, local: &[u8]) -> Option<Arc<ModelSchema>> {
++        if !self.has_variants() {
++            return None;
++        }
+         self.variants
++            .schemas
+             .read()
+             .unwrap_or_else(|p| p.into_inner())
+             .iter()
+@@ -168,7 +190,11 @@ impl ModelSchema {
+ 
+     /// Look up a derivation by its complete QName.
+     pub fn find_variant_qname(&self, namespace: &str, local: &[u8]) -> Option<Arc<ModelSchema>> {
++        if !self.has_variants() {
++            return None;
++        }
+         self.variants
++            .schemas
+             .read()
+             .unwrap_or_else(|p| p.into_inner())
+             .iter()
+@@ -180,7 +206,11 @@ impl ModelSchema {
+ 
+     /// Whether `candidate` is a registered derivation of `self`.
+     pub fn matches_variant(&self, candidate: &ModelSchema) -> bool {
++        if !self.has_variants() {
++            return false;
++        }
+         self.variants
++            .schemas
+             .read()
+             .unwrap_or_else(|p| p.into_inner())
+             .iter()
+@@ -655,7 +685,7 @@ impl ModelSchemaBuilder {
+             is_abstract: self.is_abstract,
+             strict_root: self.strict_root,
+             content_pattern: self.content_pattern,
+-            variants: Arc::new(RwLock::new(Vec::new())),
++            variants: Arc::new(VariantRegistry::default()),
+         })
+     }
+ }
+diff --git a/crates/polyxml-core/tests/test_variant_registry.rs b/crates/polyxml-core/tests/test_variant_registry.rs
+new file mode 100644
+index 0000000..9502c68
+--- /dev/null
++++ b/crates/polyxml-core/tests/test_variant_registry.rs
+@@ -0,0 +1,75 @@
++use std::sync::Arc;
++
++use polyxml::schema::ModelSchema;
++
++#[test]
++fn registration_and_clearing_are_visible_to_schema_clones() {
++    let base = ModelSchema::builder("Base").build();
++    let clone = (*base).clone();
++    let derived = ModelSchema::builder("Derived")
++        .namespace("urn:derived")
++        .build();
++    assert!(!clone.has_variants());
++    assert!(clone.variants().is_empty());
++    base.set_variants(vec![Arc::clone(&derived)]);
++    assert!(clone.has_variants());
++    assert!(Arc::ptr_eq(&clone.variants()[0], &derived));
++    assert!(Arc::ptr_eq(
++        &clone.find_variant(b"Derived").unwrap(),
++        &derived
++    ));
++    assert!(clone.find_variant_qname("urn:other", b"Derived").is_none());
++    assert!(Arc::ptr_eq(
++        &clone.find_variant_qname("urn:derived", b"Derived").unwrap(),
++        &derived
++    ));
++    assert!(clone.matches_variant(&derived));
++    clone.set_variants(Vec::new());
++    assert!(!base.has_variants());
++    assert!(base.variants().is_empty());
++    assert!(base.find_variant(b"Derived").is_none());
++    assert!(!base.matches_variant(&derived));
++    clone.set_variants(vec![Arc::clone(&derived)]);
++    assert!(base.has_variants());
++    assert!(base.matches_variant(&derived));
++}
++
++#[test]
++fn concurrent_registry_updates_keep_complete_variant_snapshots() {
++    let base = ModelSchema::builder("Base").build();
++    let derived = ModelSchema::builder("Derived").build();
++    std::thread::scope(|scope| {
++        scope.spawn(|| {
++            for index in 0..4096 {
++                base.set_variants(if index % 2 == 0 {
++                    Vec::new()
++                } else {
++                    vec![Arc::clone(&derived)]
++                });
++            }
++            base.set_variants(vec![Arc::clone(&derived)]);
++        });
++        for _ in 0..4 {
++            scope.spawn(|| {
++                for _ in 0..4096 {
++                    // These calls can observe different registry revisions.
++                    // Each populated snapshot must contain the original Arc.
++                    let _ = base.has_variants();
++                    let variants = base.variants();
++                    assert!(variants.len() <= 1);
++                    for variant in variants {
++                        assert!(Arc::ptr_eq(&variant, &derived));
++                    }
++                    if let Some(variant) = base.find_variant(b"Derived") {
++                        assert!(Arc::ptr_eq(&variant, &derived));
++                    }
++                }
++            });
++        }
++    });
++    assert!(base.has_variants());
++    assert!(Arc::ptr_eq(&base.variants()[0], &derived));
++    base.set_variants(Vec::new());
++    assert!(!base.has_variants());
++    assert!(base.variants().is_empty());
++}
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/compact-frames-screen.tar.gz b/research/data/runtime-followups-2026-10-03/performance-experiments/compact-frames-screen.tar.gz
new file mode 100644
index 0000000..d16db4f
Binary files /dev/null and b/research/data/runtime-followups-2026-10-03/performance-experiments/compact-frames-screen.tar.gz differ
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/compact-frames-tests.txt b/research/data/runtime-followups-2026-10-03/performance-experiments/compact-frames-tests.txt
new file mode 100644
index 0000000..8cbf20e
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/compact-frames-tests.txt
@@ -0,0 +1,127 @@
+memcap: <=7735 MiB (60% of 12892 MiB available) [systemd MemoryMax, swap off]
+   Compiling proc-macro2 v1.0.107
+   Compiling quote v1.0.47
+   Compiling unicode-ident v1.0.24
+   Compiling syn v3.0.5
+   Compiling serde_core v1.0.229
+   Compiling syn v2.0.119
+   Compiling serde v1.0.229
+   Compiling memchr v2.8.3
+   Compiling siphasher v1.0.3
+   Compiling serde_derive v1.0.229
+   Compiling zerocopy v0.8.57
+   Compiling libc v0.2.189
+   Compiling zmij v1.0.23
+   Compiling cfg-if v1.0.4
+   Compiling lexical-util v1.0.7
+   Compiling zerocopy-derive v0.8.57
+   Compiling find-msvc-tools v0.1.12
+   Compiling shlex v2.0.1
+   Compiling serde_json v1.0.151
+   Compiling cc v1.4.5
+   Compiling phf_shared v0.14.0
+   Compiling aho-corasick v1.1.5
+   Compiling autocfg v1.5.1
+   Compiling itoa v1.0.18
+   Compiling fastrand v2.5.0
+   Compiling regex-syntax v0.8.11
+   Compiling regex-automata v0.4.18
+   Compiling num-traits v0.2.19
+   Compiling half v2.7.1
+   Compiling alloca v0.4.0
+   Compiling lexical-write-integer v1.0.6
+   Compiling lexical-parse-integer v1.0.6
+   Compiling getrandom v0.4.3
+   Compiling ciborium-io v0.2.2
+   Compiling clap_lex v1.1.0
+   Compiling anstyle v1.0.14
+   Compiling thiserror v2.0.21
+   Compiling rustix v1.1.5
+   Compiling either v1.18.0
+   Compiling itertools v0.13.0
+   Compiling phf_generator v0.14.0
+   Compiling clap_builder v4.6.7
+   Compiling ciborium-ll v0.2.2
+   Compiling lexical-parse-float v1.0.6
+   Compiling lexical-write-float v1.0.6
+   Compiling regex v1.13.1
+   Compiling thiserror-impl v2.0.21
+   Compiling same-file v1.0.6
+   Compiling cast v0.3.0
+   Compiling memo-map v0.3.4
+   Compiling bitflags v2.13.2
+   Compiling linux-raw-sys v0.12.1
+   Compiling minijinja v2.24.0
+   Compiling criterion-plot v0.8.2
+   Compiling walkdir v2.5.0
+   Compiling phf_codegen v0.14.0
+   Compiling lexical-core v1.0.6
+   Compiling ciborium v0.2.2
+   Compiling clap v4.6.7
+   Compiling phf_macros v0.14.0
+   Compiling tinytemplate v1.2.1
+   Compiling page_size v0.6.0
+   Compiling quick-xml v0.42.0
+   Compiling diff v0.1.13
+   Compiling anes v0.1.6
+   Compiling smallvec v1.16.2
+   Compiling yansi v1.0.1
+   Compiling once_cell v1.21.4
+   Compiling oorandom v11.1.5
+   Compiling heck v0.5.0
+   Compiling polyxml v0.34.6 (/home/bailey/github/polyxml-compact-frames/crates/polyxml-core)
+   Compiling criterion v0.8.2
+   Compiling tempfile v3.27.0
+   Compiling pretty_assertions v1.4.1
+   Compiling phf v0.14.0
+    Finished `test` profile [unoptimized + debuginfo] target(s) in 39.97s
+     Running tests/test_runtime_fast_paths.rs (/home/bailey/github/PolyXML/target/followup-compact-verification/debug/deps/test_runtime_fast_paths-cb1357dd8af777c0)
+
+running 7 tests
+test repeated_lexical_lists_keep_whitespace_validation ... ok
+test repeated_nested_records_validate_their_own_lexical_lists ... ok
+test lexical_list_formatting_preserves_escaping_empty_lists_and_long_numbers ... ok
+test indexed_scalar_state_preserves_enum_pattern_and_split_text ... ok
+test cached_patterns_keep_raw_restriction_and_trimmed_pattern_semantics ... ok
+test nested_mixed_frames_resolve_kind_from_their_parent_schema ... ok
+test unified_scalar_state_keeps_mixed_branch_order_nil_and_nested_frames ... ok
+
+test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_security.rs (/home/bailey/github/PolyXML/target/followup-compact-verification/debug/deps/test_security-e324fcc17a7a8524)
+
+running 6 tests
+test test_cdata_section_handling ... ok
+test test_numeric_character_references ... ok
+test test_xml_entity_roundtrip_escaping ... ok
+test test_malformed_unclosed_cdata_rejection ... ok
+test unsupported_general_entities_are_rejected ... ok
+test test_max_depth_recursion_limit ... ok
+
+test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_value_constraints.rs (/home/bailey/github/PolyXML/target/followup-compact-verification/debug/deps/test_value_constraints-22fd91427282898a)
+
+running 2 tests
+test fixed_constraints_cover_input_and_output_in_value_space ... ok
+test repeated_particle_cardinality_belongs_to_the_group ... ok
+
+test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_xsi_type.rs (/home/bailey/github/PolyXML/target/followup-compact-verification/debug/deps/test_xsi_type-c45053350e445953)
+
+running 11 tests
+test abstract_type_without_derivations_errors ... ok
+test plain_type_attribute_is_not_mistaken_for_dispatch ... ok
+test nil_abstract_complex_type_skips_concrete_dispatch ... ok
+test abstract_type_requires_concrete_selector ... ok
+test iterparse_dispatches_each_streamed_item ... ok
+test root_xsi_type_dispatch_including_empty_element ... ok
+test variant_serialization_requires_namespaces ... ok
+test nested_xsi_type_dispatch_and_round_trip ... ok
+test unknown_xsi_type_on_abstract_type_errors ... ok
+test from_ir_flattens_base_fields_and_registers_variants ... ok
+test xsi_type_resolves_namespace_inherited_from_parent ... ok
+
+test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/compact-frames.patch b/research/data/runtime-followups-2026-10-03/performance-experiments/compact-frames.patch
new file mode 100644
index 0000000..c855ba0
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/compact-frames.patch
@@ -0,0 +1,93 @@
+diff --git a/crates/polyxml-core/src/parser.rs b/crates/polyxml-core/src/parser.rs
+index afc027e..5741d45 100644
+--- a/crates/polyxml-core/src/parser.rs
++++ b/crates/polyxml-core/src/parser.rs
+@@ -1,4 +1,5 @@
+ use std::collections::HashMap;
++use std::num::NonZeroUsize;
+ use std::sync::Arc;
+ 
+ use quick_xml::events::{BytesStart, Event};
+@@ -22,7 +23,8 @@ pub(crate) struct StackFrame {
+     values: SmallVec<[Option<PolyValue>; 8]>,
+     list_values: SmallVec<[Option<Vec<PolyValue>>; 4]>,
+     frame_text_buf: Option<Vec<u8>>,
+-    mixed_parent_kind: Option<String>,
++    // Parent branch index + 1 keeps the absent case in one machine word.
++    mixed_parent_branch: Option<NonZeroUsize>,
+     content_tokens: String,
+ }
+ 
+@@ -39,7 +41,7 @@ impl StackFrame {
+             values: smallvec![None; field_count],
+             list_values: SmallVec::new(),
+             frame_text_buf,
+-            mixed_parent_kind: None,
++            mixed_parent_branch: None,
+             content_tokens: String::new(),
+         }
+     }
+@@ -569,7 +571,8 @@ impl XmlDeserializer {
+                                             namespace_stack.last().unwrap(),
+                                         )?;
+                                         let mut frame = StackFrame::new(frame_schema);
+-                                        frame.mixed_parent_kind = Some(branch.variant_name.clone());
++                                        frame.mixed_parent_branch =
++                                            NonZeroUsize::new(branch_index + 1);
+                                         Self::parse_attributes(e, &mut frame)?;
+                                         stack.push(frame);
+                                     }
+@@ -949,13 +952,17 @@ impl XmlDeserializer {
+                             }
+                         }
+                     } else if stack.len() > 1 {
+-                        let mut finished_frame = stack.pop().unwrap();
++                        let finished_frame = stack.pop().unwrap();
+                         let local_name = e.local_name();
+-                        let mixed_kind = finished_frame.mixed_parent_kind.take();
++                        let mixed_branch = finished_frame.mixed_parent_branch;
+                         let instance = finished_frame.finish()?;
+                         let parent = stack.last_mut().unwrap();
+ 
+-                        if let Some(kind) = mixed_kind {
++                        if let Some(branch) = mixed_branch {
++                            let kind = parent.schema.mixed_content.as_ref().unwrap().branches
++                                [branch.get() - 1]
++                                .variant_name
++                                .clone();
+                             parent.push_mixed_item(kind, instance);
+                             continue;
+                         }
+diff --git a/crates/polyxml-core/tests/test_runtime_fast_paths.rs b/crates/polyxml-core/tests/test_runtime_fast_paths.rs
+index c0f13f1..35e1753 100644
+--- a/crates/polyxml-core/tests/test_runtime_fast_paths.rs
++++ b/crates/polyxml-core/tests/test_runtime_fast_paths.rs
+@@ -242,3 +242,28 @@ fn unified_scalar_state_keeps_mixed_branch_order_nil_and_nested_frames() {
+     assert!(deserialize(nil_document, Arc::clone(&schema)).is_ok());
+     assert!(deserialize(b"<Root><State>invalid</State></Root>", schema).is_err());
+ }
++
++#[test]
++fn nested_mixed_frames_resolve_kind_from_their_parent_schema() {
++    use polyxml::schema_parser::XsdParser;
++    let ir = XsdParser::new().parse_str(r#"<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
++      <xs:element name="Root"><xs:complexType mixed="true"><xs:choice minOccurs="0" maxOccurs="unbounded">
++        <xs:element name="Lead" type="xs:string"/>
++        <xs:element name="Child"><xs:complexType mixed="true"><xs:choice minOccurs="0" maxOccurs="unbounded">
++          <xs:element name="Grand"><xs:complexType><xs:sequence><xs:element name="Value" type="xs:string"/></xs:sequence></xs:complexType></xs:element>
++          <xs:element name="Inner" type="xs:string"/>
++        </xs:choice></xs:complexType></xs:element>
++        <xs:element name="Tail" type="xs:int"/>
++      </xs:choice></xs:complexType></xs:element>
++    </xs:schema>"#).unwrap();
++    let schema = ModelSchema::from_ir(&ir, Some("Root")).unwrap();
++    let xml = b"<Root>before<Lead>lead</Lead><Child>start<Grand><Value>deep</Value></Grand><Inner>inner</Inner>end</Child><Tail>7</Tail>after</Root>";
++    let value = deserialize(xml, Arc::clone(&schema)).unwrap();
++    let output = serialize("Root", &value, &schema, None).unwrap();
++    assert_eq!(value, deserialize(&output, Arc::clone(&schema)).unwrap());
++    assert!(deserialize(
++        b"<Root><Child><Grand><Value>unfinished</Value></Grand>",
++        schema
++    )
++    .is_err());
++}
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/isolated-mixed-writer-tests.txt b/research/data/runtime-followups-2026-10-03/performance-experiments/isolated-mixed-writer-tests.txt
new file mode 100644
index 0000000..211c16c
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/isolated-mixed-writer-tests.txt
@@ -0,0 +1,105 @@
+memcap: <=7758 MiB (60% of 12930 MiB available) [systemd MemoryMax, swap off]
+   Compiling proc-macro2 v1.0.107
+   Compiling unicode-ident v1.0.24
+   Compiling quote v1.0.47
+   Compiling syn v3.0.5
+   Compiling serde_core v1.0.229
+   Compiling syn v2.0.119
+   Compiling memchr v2.8.3
+   Compiling siphasher v1.0.3
+   Compiling serde v1.0.229
+   Compiling serde_derive v1.0.229
+   Compiling zerocopy v0.8.57
+   Compiling libc v0.2.189
+   Compiling zmij v1.0.23
+   Compiling cfg-if v1.0.4
+   Compiling lexical-util v1.0.7
+   Compiling zerocopy-derive v0.8.57
+   Compiling serde_json v1.0.151
+   Compiling shlex v2.0.1
+   Compiling find-msvc-tools v0.1.12
+   Compiling cc v1.4.5
+   Compiling phf_shared v0.14.0
+   Compiling aho-corasick v1.1.5
+   Compiling regex-syntax v0.8.11
+   Compiling fastrand v2.5.0
+   Compiling autocfg v1.5.1
+   Compiling itoa v1.0.18
+   Compiling num-traits v0.2.19
+   Compiling regex-automata v0.4.18
+   Compiling half v2.7.1
+   Compiling alloca v0.4.0
+   Compiling lexical-write-integer v1.0.6
+   Compiling lexical-parse-integer v1.0.6
+   Compiling either v1.18.0
+   Compiling rustix v1.1.5
+   Compiling getrandom v0.4.3
+   Compiling clap_lex v1.1.0
+   Compiling ciborium-io v0.2.2
+   Compiling anstyle v1.0.14
+   Compiling thiserror v2.0.21
+   Compiling phf_generator v0.14.0
+   Compiling clap_builder v4.6.7
+   Compiling ciborium-ll v0.2.2
+   Compiling itertools v0.13.0
+   Compiling lexical-parse-float v1.0.6
+   Compiling lexical-write-float v1.0.6
+   Compiling regex v1.13.1
+   Compiling thiserror-impl v2.0.21
+   Compiling linux-raw-sys v0.12.1
+   Compiling same-file v1.0.6
+   Compiling cast v0.3.0
+   Compiling memo-map v0.3.4
+   Compiling bitflags v2.13.2
+   Compiling minijinja v2.24.0
+   Compiling criterion-plot v0.8.2
+   Compiling walkdir v2.5.0
+   Compiling phf_codegen v0.14.0
+   Compiling lexical-core v1.0.6
+   Compiling ciborium v0.2.2
+   Compiling clap v4.6.7
+   Compiling phf_macros v0.14.0
+   Compiling tinytemplate v1.2.1
+   Compiling page_size v0.6.0
+   Compiling quick-xml v0.42.0
+   Compiling oorandom v11.1.5
+   Compiling yansi v1.0.1
+   Compiling heck v0.5.0
+   Compiling diff v0.1.13
+   Compiling anes v0.1.6
+   Compiling smallvec v1.16.2
+   Compiling once_cell v1.21.4
+   Compiling tempfile v3.27.0
+   Compiling polyxml v0.34.6 (/home/bailey/github/polyxml-mixed-writer/crates/polyxml-core)
+   Compiling criterion v0.8.2
+   Compiling pretty_assertions v1.4.1
+   Compiling phf v0.14.0
+    Finished `test` profile [unoptimized + debuginfo] target(s) in 39.49s
+     Running tests/test_mixed_nil.rs (/home/bailey/github/PolyXML/target/followup-mixed-writer-verification/debug/deps/test_mixed_nil-1aec7ae934470d6f)
+
+running 2 tests
+test nil_scalar_and_nested_items_keep_order_and_differ_from_empty_strings ... ok
+test nil_instance_prefix_does_not_rebind_the_element_namespace ... ok
+
+test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_runtime_fast_paths.rs (/home/bailey/github/PolyXML/target/followup-mixed-writer-verification/debug/deps/test_runtime_fast_paths-cb1357dd8af777c0)
+
+running 6 tests
+test repeated_lexical_lists_keep_whitespace_validation ... ok
+test lexical_list_formatting_preserves_escaping_empty_lists_and_long_numbers ... ok
+test repeated_nested_records_validate_their_own_lexical_lists ... ok
+test indexed_scalar_state_preserves_enum_pattern_and_split_text ... ok
+test cached_patterns_keep_raw_restriction_and_trimmed_pattern_semantics ... ok
+test unified_scalar_state_keeps_mixed_branch_order_nil_and_nested_frames ... ok
+
+test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_value_constraints.rs (/home/bailey/github/PolyXML/target/followup-mixed-writer-verification/debug/deps/test_value_constraints-22fd91427282898a)
+
+running 2 tests
+test fixed_constraints_cover_input_and_output_in_value_space ... ok
+test repeated_particle_cardinality_belongs_to_the_group ... ok
+
+test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/manifest.json b/research/data/runtime-followups-2026-10-03/performance-experiments/manifest.json
new file mode 100644
index 0000000..f190337
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/manifest.json
@@ -0,0 +1,90 @@
+{
+  "attribute-fast-final-core.tar.gz": {
+    "sha256": "52cc05df84a6233d23cfbda8d8fc1c353b7ac7c0670685e9d8507b776ec6656d",
+    "bytes": 75015
+  },
+  "attribute-fast-focused-tests.txt": {
+    "sha256": "1d4083383238aad7c17e4b18878d25eeb3355dcb0b9225cd8dc0bb86df5495e1",
+    "bytes": 3498
+  },
+  "attribute-fast-screen.tar.gz": {
+    "sha256": "d8ed59800765f5889de5fe94a4606802c3084b946bd43f4ed9cc5620663ed00b",
+    "bytes": 28194
+  },
+  "attribute-fast.patch": {
+    "sha256": "6efc4d7824c9d5632393592e979035083781b129f29b684c20b674446aadc2c6",
+    "bytes": 1436
+  },
+  "borrow-schema-screen.tar.gz": {
+    "sha256": "9e99be1bea3b5602be4920c53c9b517d8c6bb161afae51a8176bc3eb04affda6",
+    "bytes": 28085
+  },
+  "borrow-schema-tests.txt": {
+    "sha256": "68e90c9af143b078ee4ea5613a369ed72980f7d3e1004dcbf968738267e073d9",
+    "bytes": 3522
+  },
+  "borrow-schema.patch": {
+    "sha256": "f1ed9c87133c6da1a55a1d069d8213047c23c8ac3af0f90ba8510eec4a9bf6eb",
+    "bytes": 3411
+  },
+  "compact-frames-screen.tar.gz": {
+    "sha256": "c8fc1e0d2f409d969bd0052f4a143d972369c08ade66a2ced81b474a623859ac",
+    "bytes": 28131
+  },
+  "compact-frames-tests.txt": {
+    "sha256": "7d10e91036fe40e63bd43c83b0450611bd9ee8216bf14cda6f488c9aafa404a7",
+    "bytes": 5141
+  },
+  "compact-frames.patch": {
+    "sha256": "a1517c48c784c62cc4c9326bb4e2869b4ad461c9264e5c0c375870d860fffa4d",
+    "bytes": 4820
+  },
+  "isolated-mixed-writer-tests.txt": {
+    "sha256": "09f54b5a5d6dc3c5187dbe8aca8372cbd8917ab9f24dd1839e990be0602f8382",
+    "bytes": 4069
+  },
+  "quality-gate-missing-tsc.txt": {
+    "sha256": "94ec8f6088a9f4b9321dee4d8a3498eec4e52be0bdbaab8b7d080c83d02a931f",
+    "bytes": 10510
+  },
+  "quality-gate.txt": {
+    "sha256": "d4aa026ec0307f81a049e2c82ade47cc6014e2f0ed54de2016185a6eab7bc618",
+    "bytes": 35973
+  },
+  "read-fixed-guard.patch": {
+    "sha256": "aef25aeb15c598d76da91aefa4405c1ae36c6390e7ec1bca4000818d9ba00c9d",
+    "bytes": 701
+  },
+  "read-fixed-guard.tar.gz": {
+    "sha256": "aef1b2005dd39b1b39b6134ea4ce866f6f45437f93ffc488b39443f3b5951e42",
+    "bytes": 28231
+  },
+  "rejected-shared-workspace-test-preflight.txt": {
+    "sha256": "a76e000ad3d29edcef0acbf6f4a3f626859df52c9a9ba36f10f45416d758c0ae",
+    "bytes": 1632
+  },
+  "variant-registry-all-empty-screen.tar.gz": {
+    "sha256": "bdc64991185aede07e5c420fe627d4d57e3a8ede2ee0d9603929ce3de13e64dc",
+    "bytes": 44452
+  },
+  "variant-registry-diagnostics.tar.gz": {
+    "sha256": "57d43a66f55eef5fb613c36254c3cdc2bb6ee13dc2b51ff6b7334c345e86978b",
+    "bytes": 27716
+  },
+  "variant-registry-final-core.tar.gz": {
+    "sha256": "50c8aaf98b60dd2894ec41f77a8e6f53fabfd35e24b21a56eb74a346da827713",
+    "bytes": 74906
+  },
+  "variant-registry-final-dispatch.tar.gz": {
+    "sha256": "b726f55cabb2400d42c45bdc7d1f740f637c5ff286f5a6f63ea17c1135807d3d",
+    "bytes": 46905
+  },
+  "variant-registry-screen.tar.gz": {
+    "sha256": "6cc4d4cf265fc32fa8d60e263e5993360546daee19e3c965499b2c0174d1faf7",
+    "bytes": 44454
+  },
+  "variant-registry.patch": {
+    "sha256": "46653b2008d1cb10d5791d151e60688ed2ee90fe05d2ff2bfd8a41cfb8e55d45",
+    "bytes": 7076
+  }
+}
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/quality-gate-missing-tsc.txt b/research/data/runtime-followups-2026-10-03/performance-experiments/quality-gate-missing-tsc.txt
new file mode 100644
index 0000000..930aba5
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/quality-gate-missing-tsc.txt
@@ -0,0 +1,274 @@
+memcap: <=7737 MiB (60% of 12895 MiB available) [systemd MemoryMax, swap off]
+==> [1/6] Running Rust format check (cargo fmt)...
+==> [2/6] Running Rust Clippy (cargo clippy -D warnings)...
+   Compiling proc-macro2 v1.0.107
+   Compiling unicode-ident v1.0.24
+   Compiling quote v1.0.47
+   Compiling syn v3.0.5
+   Compiling serde_core v1.0.229
+   Compiling serde v1.0.229
+    Checking memchr v2.8.3
+   Compiling serde_derive v1.0.229
+   Compiling syn v2.0.119
+   Compiling zmij v1.0.23
+    Checking lexical-util v1.0.7
+    Checking siphasher v1.0.3
+   Compiling serde_json v1.0.151
+    Checking phf_shared v0.14.0
+    Checking aho-corasick v1.1.5
+    Checking regex-syntax v0.8.11
+    Checking fastrand v2.5.0
+    Checking itoa v1.0.18
+    Checking regex-automata v0.4.18
+    Checking lexical-write-integer v1.0.6
+    Checking lexical-parse-integer v1.0.6
+   Compiling thiserror v2.0.21
+    Checking lexical-parse-float v1.0.6
+    Checking lexical-write-float v1.0.6
+    Checking regex v1.13.1
+    Checking phf_generator v0.14.0
+   Compiling thiserror-impl v2.0.21
+    Checking memo-map v0.3.4
+    Checking minijinja v2.24.0
+    Checking phf_codegen v0.14.0
+    Checking lexical-core v1.0.6
+    Checking quick-xml v0.42.0
+    Checking smallvec v1.16.2
+    Checking heck v0.5.0
+   Compiling libc v0.2.189
+    Checking once_cell v1.21.4
+    Checking polyxml v0.34.6 (/home/bailey/github/PolyXML/crates/polyxml-core)
+    Checking cfg-if v1.0.4
+    Checking utf8parse v0.2.2
+    Checking anstyle-parse v1.0.0
+    Checking is_terminal_polyfill v1.70.2
+    Checking colorchoice v1.0.5
+    Checking anstyle-query v1.1.5
+    Checking anstyle v1.0.14
+    Checking anstream v1.0.0
+    Checking bitflags v2.13.2
+    Checking strsim v0.11.1
+    Checking clap_lex v1.1.0
+    Checking clap_builder v4.6.7
+   Compiling clap_derive v4.6.7
+    Checking clap v4.6.7
+   Compiling rustix v1.1.5
+   Compiling getrandom v0.4.3
+   Compiling zerocopy v0.8.57
+   Compiling zerocopy-derive v0.8.57
+   Compiling shlex v2.0.1
+    Checking linux-raw-sys v0.12.1
+   Compiling find-msvc-tools v0.1.12
+   Compiling cc v1.4.5
+   Compiling autocfg v1.5.1
+   Compiling num-traits v0.2.19
+    Checking tempfile v3.27.0
+    Checking half v2.7.1
+   Compiling alloca v0.4.0
+    Checking either v1.18.0
+    Checking ciborium-io v0.2.2
+    Checking ciborium-ll v0.2.2
+    Checking itertools v0.13.0
+    Checking cast v0.3.0
+    Checking same-file v1.0.6
+    Checking walkdir v2.5.0
+    Checking criterion-plot v0.8.2
+   Compiling phf_macros v0.14.0
+    Checking ciborium v0.2.2
+    Checking page_size v0.6.0
+    Checking tinytemplate v1.2.1
+    Checking anes v0.1.6
+    Checking oorandom v11.1.5
+    Checking yansi v1.0.1
+    Checking diff v0.1.13
+    Checking pretty_assertions v1.4.1
+    Checking criterion v0.8.2
+    Checking phf v0.14.0
+   Compiling target-lexicon v0.13.5
+   Compiling wasm-bindgen-shared v0.2.129
+   Compiling pyo3-build-config v0.29.2
+   Compiling rustversion v1.0.23
+    Checking winnow v1.0.4
+    Checking toml_parser v1.1.3+spec-1.1.0
+   Compiling pyo3-ffi v0.29.2
+    Checking serde_spanned v1.1.1
+    Checking toml_datetime v1.1.1+spec-1.1.0
+    Checking toml_writer v1.1.2+spec-1.1.0
+    Checking toml v1.1.6+spec-1.1.0
+    Checking glob v0.3.4
+   Compiling bumpalo v3.20.3
+   Compiling unicode-segmentation v1.13.3
+   Compiling convert_case v0.6.0
+   Compiling wasm-bindgen-macro-support v0.2.129
+   Compiling wasm-bindgen v0.2.129
+   Compiling pyo3 v0.29.2
+   Compiling pyo3-macros-backend v0.29.2
+   Compiling napi-build v2.5.0
+   Compiling semver v1.0.28
+   Compiling napi-derive-backend v1.0.75
+   Compiling polyxml-js v0.34.6 (/home/bailey/github/PolyXML/crates/polyxml-js)
+   Compiling pyo3-macros v0.29.2
+   Compiling wasm-bindgen-macro v0.2.129
+    Checking polyxml-cli v0.34.6 (/home/bailey/github/PolyXML/crates/polyxml-cli)
+   Compiling ctor v0.2.9
+    Checking napi-sys v2.4.0
+    Checking napi v2.16.17
+   Compiling napi-derive v2.16.13
+    Checking polyxml-wasm v0.34.6 (/home/bailey/github/PolyXML/crates/polyxml-wasm)
+    Checking polyxml-python v0.34.6 (/home/bailey/github/PolyXML/crates/polyxml-python)
+    Checking polyxml-c v0.34.6 (/home/bailey/github/PolyXML/crates/polyxml-c)
+    Finished `dev` profile [unoptimized + debuginfo] target(s) in 47.55s
+==> [3/6] Running Rust workspace tests (cargo test)...
+   Compiling unicode-ident v1.0.24
+   Compiling proc-macro2 v1.0.107
+   Compiling quote v1.0.47
+   Compiling syn v3.0.5
+   Compiling serde_core v1.0.229
+   Compiling siphasher v1.0.3
+   Compiling memchr v2.8.3
+   Compiling regex-syntax v0.8.11
+   Compiling serde_derive v1.0.229
+   Compiling heck v0.5.0
+   Compiling serde v1.0.229
+   Compiling lexical-util v1.0.7
+   Compiling syn v2.0.119
+   Compiling zmij v1.0.23
+   Compiling aho-corasick v1.1.5
+   Compiling phf_shared v0.14.0
+   Compiling fastrand v2.5.0
+   Compiling itoa v1.0.18
+   Compiling cfg-if v1.0.4
+   Compiling serde_json v1.0.151
+   Compiling regex-automata v0.4.18
+   Compiling lexical-parse-integer v1.0.6
+   Compiling lexical-write-integer v1.0.6
+   Compiling once_cell v1.21.4
+   Compiling lexical-write-float v1.0.6
+   Compiling lexical-parse-float v1.0.6
+   Compiling regex v1.13.1
+   Compiling phf_generator v0.14.0
+   Compiling thiserror-impl v2.0.21
+   Compiling memo-map v0.3.4
+   Compiling minijinja v2.24.0
+   Compiling thiserror v2.0.21
+   Compiling phf_codegen v0.14.0
+   Compiling lexical-core v1.0.6
+   Compiling quick-xml v0.42.0
+   Compiling smallvec v1.16.2
+   Compiling libc v0.2.189
+   Compiling polyxml v0.34.6 (/home/bailey/github/PolyXML/crates/polyxml-core)
+   Compiling utf8parse v0.2.2
+   Compiling anstyle-parse v1.0.0
+   Compiling is_terminal_polyfill v1.70.2
+   Compiling colorchoice v1.0.5
+   Compiling anstyle-query v1.1.5
+   Compiling anstyle v1.0.14
+   Compiling anstream v1.0.0
+   Compiling strsim v0.11.1
+   Compiling clap_lex v1.1.0
+   Compiling clap_builder v4.6.7
+   Compiling clap_derive v4.6.7
+   Compiling bitflags v2.13.2
+   Compiling clap v4.6.7
+   Compiling linux-raw-sys v0.12.1
+   Compiling rustix v1.1.5
+   Compiling getrandom v0.4.3
+   Compiling zerocopy-derive v0.8.57
+   Compiling zerocopy v0.8.57
+   Compiling tempfile v3.27.0
+   Compiling half v2.7.1
+   Compiling either v1.18.0
+   Compiling ciborium-io v0.2.2
+   Compiling ciborium-ll v0.2.2
+   Compiling itertools v0.13.0
+   Compiling same-file v1.0.6
+   Compiling cast v0.3.0
+   Compiling criterion-plot v0.8.2
+   Compiling walkdir v2.5.0
+   Compiling num-traits v0.2.19
+   Compiling alloca v0.4.0
+   Compiling phf_macros v0.14.0
+   Compiling ciborium v0.2.2
+   Compiling page_size v0.6.0
+   Compiling tinytemplate v1.2.1
+   Compiling yansi v1.0.1
+   Compiling diff v0.1.13
+   Compiling oorandom v11.1.5
+   Compiling anes v0.1.6
+   Compiling criterion v0.8.2
+   Compiling pretty_assertions v1.4.1
+   Compiling phf v0.14.0
+   Compiling winnow v1.0.4
+   Compiling toml_parser v1.1.3+spec-1.1.0
+   Compiling toml_datetime v1.1.1+spec-1.1.0
+   Compiling serde_spanned v1.1.1
+   Compiling toml_writer v1.1.2+spec-1.1.0
+   Compiling toml v1.1.6+spec-1.1.0
+   Compiling wasm-bindgen-shared v0.2.129
+   Compiling glob v0.3.4
+   Compiling wasm-bindgen-macro-support v0.2.129
+   Compiling wasm-bindgen-macro v0.2.129
+   Compiling polyxml-cli v0.34.6 (/home/bailey/github/PolyXML/crates/polyxml-cli)
+   Compiling wasm-bindgen v0.2.129
+   Compiling pyo3-macros-backend v0.29.2
+   Compiling napi-derive-backend v1.0.75
+   Compiling polyxml-js v0.34.6 (/home/bailey/github/PolyXML/crates/polyxml-js)
+   Compiling pyo3-macros v0.29.2
+   Compiling pyo3-ffi v0.29.2
+   Compiling ctor v0.2.9
+   Compiling napi-sys v2.4.0
+   Compiling napi v2.16.17
+   Compiling pyo3 v0.29.2
+   Compiling napi-derive v2.16.13
+   Compiling polyxml-wasm v0.34.6 (/home/bailey/github/PolyXML/crates/polyxml-wasm)
+   Compiling polyxml-python v0.34.6 (/home/bailey/github/PolyXML/crates/polyxml-python)
+   Compiling polyxml-c v0.34.6 (/home/bailey/github/PolyXML/crates/polyxml-c)
+    Finished `test` profile [unoptimized + debuginfo] target(s) in 1m 18s
+     Running unittests src/lib.rs (target/followup-registry-verification/debug/deps/polyxml-675b717e531d04ed)
+
+running 16 tests
+test integer::tests::comparison_uses_sign_and_magnitude ... ok
+test ir::chunker::tests::test_topological_scc_chunking_dag_invariants ... ok
+test ir::root_selection_tests::inherited_base_does_not_select_sibling_types ... ok
+test ir::root_selection_tests::keeps_references_descendants_and_substitutions ... ok
+test ir::root_selection_tests::rejects_missing_and_ambiguous_roots ... ok
+test json::tests::test_json_deserialization_accepts_python_field_names ... ok
+test json::tests::test_json_roundtrip_primitives ... ok
+test tests::test_namespaced_serialization ... ok
+test tests::test_deserialization_does_not_confuse_xmlns_with_attributes ... ok
+test ir::root_selection_tests::field_reference_keeps_substitution_group_members ... ok
+test tests::test_streaming_xml_item_stream ... ok
+test tests::test_roundtrip_serialization_deserialization ... ok
+test tests::test_nested_elements_and_lists ... ok
+test pattern::tests::bounded_cache_evicts_and_retains_invalid_results ... ok
+test pattern::tests::cache_matches_uncached_regex_under_churn_and_concurrency ... ok
+test pattern::tests::cyclic_working_set_above_capacity_keeps_reusing_entries ... ok
+
+test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
+
+     Running tests/test_adversarial_identifiers.rs (target/followup-registry-verification/debug/deps/test_adversarial_identifiers-34056256ccaa17cb)
+
+running 7 tests
+test test_typescript_adversarial_compilation ... FAILED
+test test_rust_adversarial_compilation ... ok
+test test_python_adversarial_compilation ... ok
+test test_go_adversarial_compilation ... ok
+test test_cpp_adversarial_compilation ... ok
+test test_java_adversarial_compilation ... ok
+test test_csharp_adversarial_compilation ... ok
+
+failures:
+
+---- test_typescript_adversarial_compilation stdout ----
+
+thread 'test_typescript_adversarial_compilation' (484912) panicked at crates/polyxml-core/tests/test_adversarial_identifiers.rs:207:10:
+failed to run tsc: Os { code: 2, kind: NotFound, message: "No such file or directory" }
+note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
+
+
+failures:
+    test_typescript_adversarial_compilation
+
+test result: FAILED. 6 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.52s
+
+error: test failed, to rerun pass `-p polyxml --test test_adversarial_identifiers`
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/quality-gate.txt b/research/data/runtime-followups-2026-10-03/performance-experiments/quality-gate.txt
new file mode 100644
index 0000000..af7a56f
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/quality-gate.txt
@@ -0,0 +1,769 @@
+memcap: <=7742 MiB (60% of 12904 MiB available) [systemd MemoryMax, swap off]
+==> [1/6] Running Rust format check (cargo fmt)...
+==> [2/6] Running Rust Clippy (cargo clippy -D warnings)...
+   Compiling pyo3-ffi v0.29.2
+   Compiling pyo3 v0.29.2
+    Checking polyxml-python v0.34.6 (/home/bailey/github/PolyXML/crates/polyxml-python)
+    Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.77s
+==> [3/6] Running Rust workspace tests (cargo test)...
+   Compiling pyo3-ffi v0.29.2
+   Compiling pyo3 v0.29.2
+   Compiling polyxml-python v0.34.6 (/home/bailey/github/PolyXML/crates/polyxml-python)
+    Finished `test` profile [unoptimized + debuginfo] target(s) in 2.59s
+     Running unittests src/lib.rs (target/followup-registry-verification/debug/deps/polyxml-675b717e531d04ed)
+
+running 16 tests
+test integer::tests::comparison_uses_sign_and_magnitude ... ok
+test ir::chunker::tests::test_topological_scc_chunking_dag_invariants ... ok
+test ir::root_selection_tests::inherited_base_does_not_select_sibling_types ... ok
+test ir::root_selection_tests::rejects_missing_and_ambiguous_roots ... ok
+test ir::root_selection_tests::keeps_references_descendants_and_substitutions ... ok
+test json::tests::test_json_roundtrip_primitives ... ok
+test json::tests::test_json_deserialization_accepts_python_field_names ... ok
+test tests::test_deserialization_does_not_confuse_xmlns_with_attributes ... ok
+test tests::test_streaming_xml_item_stream ... ok
+test ir::root_selection_tests::field_reference_keeps_substitution_group_members ... ok
+test tests::test_roundtrip_serialization_deserialization ... ok
+test tests::test_namespaced_serialization ... ok
+test tests::test_nested_elements_and_lists ... ok
+test pattern::tests::bounded_cache_evicts_and_retains_invalid_results ... ok
+test pattern::tests::cache_matches_uncached_regex_under_churn_and_concurrency ... ok
+test pattern::tests::cyclic_working_set_above_capacity_keeps_reusing_entries ... ok
+
+test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
+
+     Running tests/test_adversarial_identifiers.rs (target/followup-registry-verification/debug/deps/test_adversarial_identifiers-34056256ccaa17cb)
+
+running 7 tests
+test test_rust_adversarial_compilation ... ok
+test test_python_adversarial_compilation ... ok
+test test_go_adversarial_compilation ... ok
+test test_cpp_adversarial_compilation ... ok
+test test_java_adversarial_compilation ... ok
+test test_typescript_adversarial_compilation ... ok
+test test_csharp_adversarial_compilation ... ok
+
+test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.29s
+
+     Running tests/test_any_attribute.rs (target/followup-registry-verification/debug/deps/test_any_attribute-d5795d9c5e0fdefd)
+
+running 1 test
+test test_any_attribute_schema_parser_and_runtime_roundtrip ... ok
+
+test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_any_element.rs (target/followup-registry-verification/debug/deps/test_any_element-1fb225d6616938e8)
+
+running 2 tests
+test test_any_element_go_codegen ... ok
+test test_any_element_schema_parser_and_runtime_roundtrip ... ok
+
+test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_conformance.rs (target/followup-registry-verification/debug/deps/test_conformance-0b37810d65fedfce)
+
+running 4 tests
+test test_soap_envelope_conformance ... ok
+test test_ubl_invoice_conformance ... ok
+test test_atom_feed_conformance ... ok
+test test_streaming_catalog_conformance ... ok
+
+test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
+
+     Running tests/test_core.rs (target/followup-registry-verification/debug/deps/test_core-f4cc1079f88df2bc)
+
+running 9 tests
+test integer_mappings_keep_fixed_width_builtins ... ok
+test test_malformed_xml_syntax_error ... ok
+test test_gregorian_partial_date_lexical_validation ... ok
+test test_error_handling_invalid_scalars ... ok
+test test_all_scalar_types ... ok
+test test_xsi_nil_handling ... ok
+test test_roundtrip_serialization_with_indentation ... ok
+test unbounded_integers_round_trip_and_compare_exact_bounds ... ok
+test test_xsd_gregorian_fields_round_trip_and_reject_invalid_dates ... ok
+
+test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_cpp_codegen.rs (target/followup-registry-verification/debug/deps/test_cpp_codegen-a4cd5571504c64d5)
+
+running 14 tests
+test test_cpp_cmake_modules_file_set ... ok
+test test_cpp_glaze_backend_meta_generation ... ok
+test test_cpp_cmake_and_meson_generation ... ok
+test simple_aliases_follow_their_base_types ... ok
+test test_cpp_mode_and_backend_from_str_loose ... ok
+test test_cpp_sanitization ... ok
+test mixed_content_self_cycle_compiles ... ok
+test mixed_content_mutual_cycle_compiles ... ok
+Recursive tree unique_ptr passed.
+test test_cpp_recursive_cycle_unique_ptr ... ok
+Inheritance test passed.
+test test_cpp_inheritance_codegen ... ok
+test test_cpp_modules_compilation ... ok
+Choice pattern matching passed.
+test test_cpp_choice_variant_compilation ... ok
+All C++20 tests passed successfully.
+test test_cpp_struct_and_enum_codegen_compilation ... ok
+ISO 20022 pacs.008 C++20 test passed.
+test test_cpp_from_xsd_schema ... ok
+
+test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.88s
+
+     Running tests/test_csharp_codegen.rs (target/followup-registry-verification/debug/deps/test_csharp_codegen-cf32febf6e7f0777)
+
+running 20 tests
+test choice_variants_avoid_record_member_names ... ok
+test emits_unrestricted_simple_types_and_validates_empty_records ... ok
+test test_csharp_any_attribute_codegen ... ok
+test test_csharp_record_kind_from_str_loose ... ok
+test test_csharp_date_or_datetime_lexical_union ... ok
+test test_csharp_sanitization ... ok
+test test_csharp_sequence_nested_inside_choice_codegen ... ok
+test test_csharp_source_gen_context ... ok
+  Determining projects to restore...
+  Restored /tmp/.tmpfYgpB5/PaymentsApp.csproj (in 186 ms).
+  PaymentsApp -> /tmp/.tmpfYgpB5/bin/Debug/net8.0/PaymentsApp.dll
+
+Build succeeded.
+    0 Warning(s)
+    0 Error(s)
+
+Time Elapsed 00:00:01.16
+test unbounded_integer_xml_preserves_digits ... ok
+Choice pattern matching and XML serialization passed!
+test test_csharp_choice_polymorphic_hierarchy ... ok
+  Determining projects to restore...
+  Restored /tmp/.tmp818yiI/TreeApp.csproj (in 174 ms).
+  TreeApp -> /tmp/.tmp818yiI/bin/Debug/net8.0/TreeApp.dll
+
+Build succeeded.
+    0 Warning(s)
+    0 Error(s)
+
+Time Elapsed 00:00:01.05
+Recursive tree C# tests passed cleanly!
+test test_csharp_recursive_cycle ... ok
+  Determining projects to restore...
+  Restored /tmp/.tmpnIGy7i/CrmApp.csproj (in 169 ms).
+  CrmApp -> /tmp/.tmpnIGy7i/bin/Debug/net8.0/CrmApp.dll
+
+Build succeeded.
+    0 Warning(s)
+    0 Error(s)
+
+Time Elapsed 00:00:01.05
+Customer C# tests passed cleanly!
+test test_csharp_records_and_enums_generation ... ok
+test test_csharp_mutable_inheritance_roundtrip ... ok
+test test_csharp_mutable_wrappers_and_choices_without_validation ... ok
+test test_csharp_simple_content_class_validator_and_unsealed_records ... ok
+test fixed_values_are_enforced_on_read_and_write ... ok
+test lexical_union_attributes_round_trip ... ok
+test element_defaults_preserve_absence_and_empty_presence ... ok
+test nillable_enum_collection_round_trips ... ok
+test particle_wire_structure_round_trips ... ok
+
+test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 51.47s
+
+     Running tests/test_go_codegen.rs (target/followup-registry-verification/debug/deps/test_go_codegen-005c45ed4341be87)
+
+running 25 tests
+test root_alias_names_are_unique_after_go_normalization ... ok
+test referenced_element_uses_declared_type_after_includes ... ok
+test test_go_any_attribute_codegen ... ok
+test test_go_backend_from_str_loose ... ok
+go: creating new go.mod: module payments
+go: to add module requirements and sums:
+	go mod tidy
+test imported_ordered_types_do_not_add_unused_bytes_import ... ok
+test test_go_date_or_datetime_lexical_union ... ok
+test test_go_easyjson_backend ... ok
+test test_go_enum_only_schema_omits_unused_xml_import ... ok
+test repeated_choice_branch_rejects_mixed_and_empty_selections ... ok
+test roots_and_union_attributes_round_trip ... ok
+test test_go_sanitization ... ok
+test test_go_sonic_backend ... ok
+=== RUN   TestChoiceMutualExclusivity
+    payments_test.go:44: Correctly rejected concurrent choice branches: choice ContactChoice mutual exclusivity violation: multiple branches populated (2)
+--- PASS: TestChoiceMutualExclusivity (0.00s)
+PASS
+test duplicate_choice_names_reject_invalid_branch_shapes ... ok
+ok  	payments	0.003s
+go: creating new go.mod: module tree
+go: to add module requirements and sums:
+	go mod tidy
+go: creating new go.mod: module crm
+go: to add module requirements and sums:
+	go mod tidy
+test test_go_choice_mutual_exclusivity ... ok
+test nested_lexical_unions_compile_and_round_trip_in_go ... ok
+test repeated_sequence_groups_enforce_bounds_and_order ... ok
+test abstract_substitution_heads_are_rejected ... ok
+test separate_choices_enforce_each_group ... ok
+test test_go_abstract_xsi_type_dispatch ... ok
+test test_go_namespaced_element_ref_matching ... ok
+test temporal_scalars_preserve_xsd_lexical_values ... ok
+=== RUN   TestRecursiveTree
+--- PASS: TestRecursiveTree (0.00s)
+PASS
+ok  	tree	0.002s
+test test_go_recursive_cycle_pointers ... ok
+=== RUN   TestCustomerRoundtrip
+--- PASS: TestCustomerRoundtrip (0.00s)
+PASS
+ok  	crm	0.002s
+test test_go_struct_and_enum_generation ... ok
+test unbounded_integer_xml_preserves_digits ... ok
+test ordered_particles_and_choice_branches_round_trip ... ok
+
+test result: ok. 25 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.04s
+
+     Running tests/test_java_codegen.rs (target/followup-registry-verification/debug/deps/test_java_codegen-a6078e165fc64681)
+
+running 17 tests
+test test_java_identifier_sanitization ... ok
+test test_java_jackson_backend_enum_annotations ... ok
+test test_direct_codec_rejects_wildcards_and_name_collisions ... ok
+test test_java_jackson_backend_simple_type_annotations ... ok
+test test_java_jackson_backend_from_str_loose ... ok
+test test_java_jackson_backend_union_annotations ... ok
+test test_java_jackson_backend_struct_annotations ... ok
+test test_java_bean_validation_annotations_are_opt_in ... ok
+test jackson3_preserves_core_annotations_and_maps_record_text ... ok
+test test_java_plain_record_inlines_base_fields ... ok
+test test_java_sealed_interface_choice ... ok
+test test_java_module_container_class ... ok
+test test_java_records_and_enums_generation ... ok
+test test_java_plain_record_extension_javac_execute ... ok
+test test_java_record_builder_and_nested_codec_execute ... ok
+test test_java_mutable_builders_and_direct_codecs_execute ... ok
+test test_java_direct_nil_lists_choices_and_namespaces ... ok
+
+test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.43s
+
+     Running tests/test_json.rs (target/followup-registry-verification/debug/deps/test_json-74440efee0e911e7)
+
+running 4 tests
+test test_polyvalue_direct_json_methods ... ok
+test test_json_nested_objects_and_lists ... ok
+test test_json_primitives_and_alias_modes ... ok
+test test_json_scalar_coercion ... ok
+
+test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_lexical_lists.rs (target/followup-registry-verification/debug/deps/test_lexical_lists-0f6750d9c4bf9a3c)
+
+running 2 tests
+test named_list_items_enforce_facets_and_enumerations ... ok
+test typed_lexical_lists_round_trip_across_codecs ... ok
+
+test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.34s
+
+     Running tests/test_lexical_union_codegen.rs (target/followup-registry-verification/debug/deps/test_lexical_union_codegen-3c208893561d2732)
+
+running 2 tests
+test lexical_union_xml_selects_first_valid_member_and_round_trips ... ok
+test lexical_unions_are_typed_in_all_targets ... ok
+
+test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_mixed_content.rs (target/followup-registry-verification/debug/deps/test_mixed_content-1a697ad935ae2797)
+
+running 5 tests
+test mixed_items_field_avoids_existing_attribute_name ... ok
+test parser_builds_ordered_mixed_content_union ... ok
+test mixed_content_preserves_nested_child_order ... ok
+test mixed_content_preserves_text_and_child_order ... ok
+test generated_models_keep_typed_content_items_in_all_targets ... ok
+
+test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_pattern_codegen.rs (target/followup-registry-verification/debug/deps/test_pattern_codegen-5eee5f9fe2ed3d1a)
+
+running 9 tests
+test generated_typescript_pattern_validation_all_backends ... ok
+test pattern_restrictions_preserve_or_groups_and_inherited_and_steps ... ok
+test gregorian_primitives_emit_validated_types_across_targets ... ok
+test generated_python_pattern_validation ... ok
+test generated_go_pattern_validation_and_xml_roundtrip ... ok
+test generated_java_pattern_validation_and_direct_codecs ... ok
+test generated_cpp_pattern_validation ... ok
+test generated_csharp_pattern_validation ... ok
+test generated_rust_pattern_validation_and_xml_roundtrip ... ok
+
+test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.69s
+
+     Running tests/test_python_codegen.rs (target/followup-registry-verification/debug/deps/test_python_codegen-cc734e908fb39fb6)
+
+running 16 tests
+test test_identifier_sanitization ... ok
+test test_python_abstract_meta_emission ... ok
+test multiline_xsd_documentation_stays_inside_python_comments ... ok
+test test_python_choice_union_codegen ... ok
+test test_python_codecs_generation ... ok
+test test_python_any_attribute_codegen ... ok
+test test_python_dataclass_codegen ... ok
+test test_python_generated_tag_and_custom_header ... ok
+test test_python_any_element_codegen ... ok
+test test_python_pydantic_codegen_with_facets ... ok
+test test_python_recursive_type_codegen ... ok
+test test_python_aot_codegen ... ok
+test test_python_derived_meta_inheritance ... ok
+test test_python_simplecontent_default_factory ... ok
+test test_python_sequence_nested_inside_choice_codegen ... ok
+test quoted_docstrings_preserve_text_and_remain_valid_python ... ok
+
+test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
+
+     Running tests/test_qualified_attributes.rs (target/followup-registry-verification/debug/deps/test_qualified_attributes-f8397a31cf1ecf15)
+
+running 5 tests
+test global_attribute_references_round_trip_by_namespace ... ok
+test imported_inline_global_attribute_enum_round_trips ... ok
+test derived_validators_preserve_base_constraints ... ok
+test lexical_dependencies_compile_and_round_trip_without_implicit_imports ... ok
+test inherited_attribute_and_distinct_element_keep_separate_property_names ... ok
+
+test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 8.22s
+
+     Running tests/test_runtime_fast_paths.rs (target/followup-registry-verification/debug/deps/test_runtime_fast_paths-7bf9091b7252b7db)
+
+running 6 tests
+test repeated_lexical_lists_keep_whitespace_validation ... ok
+test repeated_nested_records_validate_their_own_lexical_lists ... ok
+test lexical_list_formatting_preserves_escaping_empty_lists_and_long_numbers ... ok
+test indexed_scalar_state_preserves_enum_pattern_and_split_text ... ok
+test cached_patterns_keep_raw_restriction_and_trimmed_pattern_semantics ... ok
+test unified_scalar_state_keeps_mixed_branch_order_nil_and_nested_frames ... ok
+
+test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_rust_codecs.rs (target/followup-registry-verification/debug/deps/test_rust_codecs-9692e165bd5e14bf)
+
+running 4 tests
+test test_facet_validation_min_max_length ... ok
+test test_empty_element_codec ... ok
+test test_recursive_boxing_roundtrip ... ok
+test test_order_choice_roundtrip ... ok
+
+test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_rust_codegen.rs (target/followup-registry-verification/debug/deps/test_rust_codegen-8bce8b4b67c7eca3)
+
+running 26 tests
+test multiline_docs_and_raw_field_names_are_valid_source ... ok
+test test_rust_attribute_codec_loop_syntax ... ok
+test test_rust_choice_union_codegen ... ok
+test test_rust_digit_prefixed_module_sanitization ... ok
+test test_rust_codecs_codegen ... ok
+test test_rust_enum_and_methods ... ok
+test test_rust_identifier_sanitization ... ok
+test test_rust_extension_base_cycle_cut ... ok
+test test_rust_phf_dispatch_uniquifies_like_field_metas ... ok
+test test_rust_recursive_cycle_boxing ... ok
+test test_rust_phf_dispatch_union_groups_branch_tags ... ok
+test test_rust_extension_codecs_decode_and_encode_base_fields ... ok
+test test_rust_extension_inlines_base_fields ... ok
+test test_rust_owned_codegen ... ok
+test test_rust_rkyv_derives ... ok
+test test_rust_simple_type_cycle_resilience ... ok
+test test_rust_phf_dispatch_emission ... ok
+test test_rust_read_element_text_accumulates_refs_and_cdata ... ok
+test test_rust_topological_scc_chunking ... ok
+test test_rust_zero_copy_codegen ... ok
+test test_rust_simple_content_extension_shadow_rule ... ok
+test test_rust_simple_content_text_codec ... ok
+test empty_modules_compile_without_unused_reexports ... ok
+test binary_lexical_values_compile_and_round_trip_in_owned_and_borrowed_modes ... ok
+test duplicate_wire_names_keep_distinct_json_values ... ok
+test named_choice_wrappers_round_trip_without_unreachable_dispatch ... ok
+
+test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 12.11s
+
+     Running tests/test_schema_audit.rs (target/followup-registry-verification/debug/deps/test_schema_audit-24992dfb5b4a626c)
+
+running 13 tests
+test distinct_values_with_colliding_variant_names_stay_unique ... ok
+test derived_simple_type_inherits_base_patterns ... ok
+test quick_xml_serde_skips_unknown_elements ... ok
+test all_languages_disambiguate_flat_collision ... ok
+test named_group_reference_fields_are_parsed ... ok
+test rust_flat_output_has_no_colliding_type_names ... ok
+test duplicate_enumeration_values_are_deduped ... ok
+test nested_inline_complex_type_is_extracted_not_leaked ... ok
+test simple_content_extension_emits_value_field ... ok
+test generated_rust_has_no_deny_unknown_fields ... ok
+test restricted_simple_types_emit_named_aliases ... ok
+test chameleon_include_adopts_including_namespace_per_includer ... ok
+test diamond_includes_do_not_duplicate_upa_source_documents ... ok
+
+test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
+
+     Running tests/test_schema_ir.rs (target/followup-registry-verification/debug/deps/test_schema_ir-f793c1b9895343c7)
+
+running 20 tests
+test global_attribute_reference_uses_declared_type ... ok
+test consumed_particles_do_not_swallow_following_declarations ... ok
+test missing_included_schema_is_an_error ... ok
+test test_list_fields_do_not_trigger_spurious_cycles ... ok
+test test_language_context_adapter ... ok
+test schema_errors_preserve_forward_imports_and_annotation_payloads ... ok
+test consumed_child_subtrees_do_not_swallow_following_types ... ok
+test derived_complex_type_keeps_base_and_bounded_choice ... ok
+test test_minijinja_template_engine_and_filters ... ok
+test inline_list_item_types_preserve_enum_and_union_declarations ... ok
+test test_tarjan_mutual_recursive_cycle_detection_and_boxing ... ok
+test test_tarjan_self_recursive_cycle_detection_and_boxing ... ok
+test test_parse_lexical_union_member_types_and_inline_members ... ok
+test test_substitution_groups ... ok
+test schema_for_schemas_declared_types_are_not_unknown_builtins ... ok
+test xml_prefix_is_available_without_explicit_declaration ... ok
+test test_parse_complex_type_and_facets ... ok
+test test_sequence_nested_inside_choice_preserved_in_ir ... ok
+test test_parse_choice_as_union ... ok
+test imported_inline_global_attribute_types_are_resolved ... ok
+
+test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_security.rs (target/followup-registry-verification/debug/deps/test_security-c3afa670f1d6c619)
+
+running 6 tests
+test test_malformed_unclosed_cdata_rejection ... ok
+test test_cdata_section_handling ... ok
+test test_numeric_character_references ... ok
+test unsupported_general_entities_are_rejected ... ok
+test test_xml_entity_roundtrip_escaping ... ok
+test test_max_depth_recursion_limit ... ok
+
+test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_temporal_union.rs (target/followup-registry-verification/debug/deps/test_temporal_union-e25d1f9b83e2fdc4)
+
+running 2 tests
+test go_temporal_union_preserves_branches_and_lexicals ... ok
+test csharp_temporal_union_preserves_branches_and_lexicals ... ok
+
+test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.09s
+
+     Running tests/test_transcoder.rs (target/followup-registry-verification/debug/deps/test_transcoder-6854114408316a2e)
+
+running 6 tests
+test test_transcoder_errors ... ok
+test test_schemaless_preserves_refs_cdata_and_attr_entities ... ok
+test test_schemaless_pretty_transcoding ... ok
+test test_schemaless_xml_to_json_and_back ... ok
+test test_schema_directed_transcoding ... ok
+test test_schema_from_ir_transcoding ... ok
+
+test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_ts_codegen.rs (target/followup-registry-verification/debug/deps/test_ts_codegen-4e67290c9758f4d9)
+
+running 9 tests
+test test_ts_backend_from_str_loose ... ok
+test test_ts_identifier_sanitization ... ok
+test test_ts_discriminated_union_choice ... ok
+test test_ts_recursive_cycle_zod_lazy ... ok
+test test_ts_interface_and_enum_codegen ... ok
+test test_ts_typebox_schema_generation ... ok
+test test_ts_valibot_schema_generation ... ok
+test test_ts_zod_schema_generation ... ok
+test mixed_content_inheritance_compiles_with_widened_items ... ok
+
+test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.32s
+
+     Running tests/test_ubl_csharp.rs (target/followup-registry-verification/debug/deps/test_ubl_csharp-b04bc8d2d5f891c2)
+
+running 2 tests
+test unprefixed_xsd_builtin_simple_content_base_uses_default_namespace ... ok
+test multi_namespace_roots_and_inherited_simple_content_compile_and_round_trip ... ok
+
+test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.04s
+
+     Running tests/test_unbounded_choice.rs (target/followup-registry-verification/debug/deps/test_unbounded_choice-7672e62aa5ecca1a)
+
+running 1 test
+go: creating new go.mod: module testmod
+go: to add module requirements and sums:
+	go mod tidy
+=== RUN   TestUnboundedChoiceOrder
+--- PASS: TestUnboundedChoiceOrder (0.00s)
+PASS
+ok  	testmod	0.002s
+test test_unbounded_choice_ir_and_all_targets ... ok
+
+test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
+
+     Running tests/test_upa.rs (target/followup-registry-verification/debug/deps/test_upa-a20019d257c7eac5)
+
+running 6 tests
+test local_form_and_in_scope_qnames_distinguish_namespaces ... ok
+test imported_groups_and_chameleon_wildcards_keep_source_namespaces ... ok
+test model_groups_derivation_and_substitution_members_are_checked ... ok
+test all_groups_and_wildcard_namespaces_are_checked ... ok
+test optional_siblings_and_choice_lookahead_violate_upa ... ok
+test occurrence_ranges_keep_particle_identity_and_count_boundaries ... ok
+
+test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_value_constraints.rs (target/followup-registry-verification/debug/deps/test_value_constraints-73eb81a96de588c1)
+
+running 2 tests
+test fixed_constraints_cover_input_and_output_in_value_space ... ok
+test repeated_particle_cardinality_belongs_to_the_group ... ok
+
+test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_variant_registry.rs (target/followup-registry-verification/debug/deps/test_variant_registry-3dd5b7b4f906563b)
+
+running 2 tests
+test registration_and_clearing_are_visible_to_schema_clones ... ok
+test concurrent_registry_updates_keep_complete_variant_snapshots ... ok
+
+test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_xsi_type.rs (target/followup-registry-verification/debug/deps/test_xsi_type-2c07a0776bd0ec60)
+
+running 11 tests
+test abstract_type_without_derivations_errors ... ok
+test nil_abstract_complex_type_skips_concrete_dispatch ... ok
+test abstract_type_requires_concrete_selector ... ok
+test unknown_xsi_type_on_abstract_type_errors ... ok
+test iterparse_dispatches_each_streamed_item ... ok
+test variant_serialization_requires_namespaces ... ok
+test root_xsi_type_dispatch_including_empty_element ... ok
+test plain_type_attribute_is_not_mistaken_for_dispatch ... ok
+test from_ir_flattens_base_fields_and_registers_variants ... ok
+test nested_xsi_type_dispatch_and_round_trip ... ok
+test xsi_type_resolves_namespace_inherited_from_parent ... ok
+
+test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running unittests src/lib.rs (target/followup-registry-verification/debug/deps/polyxml-4ccc220bbd6a27a0)
+
+running 2 tests
+test tests::test_c_abi_nested_list_batch_roundtrip ... ok
+test tests::test_c_abi_namespaced_roundtrip ... ok
+
+test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running unittests src/lib.rs (target/followup-registry-verification/debug/deps/polyxml_cli-dabf613ae4318f1b)
+
+running 0 tests
+
+test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running unittests src/main.rs (target/followup-registry-verification/debug/deps/polyxml-cec02944de7101b9)
+
+running 0 tests
+
+test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running tests/test_cli.rs (target/followup-registry-verification/debug/deps/test_cli-714ccf0c30d96734)
+
+running 47 tests
+test fish_completion_filters_values_when_available ... ok
+Loading manifest: /tmp/.tmpYybVc2/polyxml.toml
+test manifest_generation_does_not_ignore_cli_overrides ... ok
+Compiling schema: /tmp/.tmpYybVc2/model.xsd
+Parsing schema: /tmp/.tmpADDsjF/customer.xsd
+  Namespace: urn:app
+  Types: 1 total (1 structs, 0 enums, 0 unions, 0 simple restrictions)
+  Root elements: 0
+Emitting target [csharp] into /tmp/.tmpYybVc2/cs
+  Namespace: urn:crm
+  Types: 1 total (1 structs, 0 enums, 0 unions, 0 simple restrictions)
+  Root elements: 0
+Code generation complete.
+Emitting target [ts] into /tmp/.tmpYybVc2/ts
+Emitting target [go] into /tmp/.tmpYybVc2/go
+Emitting target [rust] into /tmp/.tmpYybVc2/rs
+Build finished successfully.
+test test_cli_csharp_source_gen_and_record_struct ... ok
+test test_cli_build_polyxml_manifest_with_new_features ... ok
+test test_cli_generate_custom_header_and_generated_tags ... ok
+test test_cli_generate_dry_run ... ok
+test test_cli_cpp_modules_and_glaze ... ok
+test jackson3_cli_and_manifest_emit_equivalent_models ... ok
+test test_cli_generate_help ... ok
+test test_cli_generate_multi_lang ... ok
+test imported_substitution_helpers_do_not_require_spurious_module_owners ... ok
+Parsing schema: /tmp/.tmpX6QJuE/service.xsd
+  Namespace: urn:service
+  Types: 1 total (1 structs, 0 enums, 0 unions, 0 simple restrictions)
+  Root elements: 0
+Code generation complete.
+test test_cli_help ... ok
+test python_features_respect_manifest_false_values_and_backend ... ok
+test test_cli_generate_python_backends ... ok
+test test_cli_generate_rust_zero_copy_and_owned ... ok
+Parsing schema: /tmp/.tmpX6QJuE/service.xsd
+  Namespace: urn:service
+  Types: 1 total (1 structs, 0 enums, 0 unions, 0 simple restrictions)
+  Root elements: 0
+Code generation complete.
+Loading manifest: /tmp/.tmpuGOxZF/polyxml.toml
+test test_cli_go_easyjson_and_sonic_backend ... ok
+Compiling schema: /tmp/.tmpuGOxZF/schema.xsd
+  Types: 1 total (1 structs, 0 enums, 0 unions, 0 simple restrictions)
+  Root elements: 0
+Emitting target [rust] into /tmp/.tmpuGOxZF/rs
+Emitting target [go] into /tmp/.tmpuGOxZF/go
+test retained_imported_ordered_helpers_belong_to_the_unique_namespace_module ... Emitting target [csharp] into /tmp/.tmpuGOxZF/cs
+ok
+Build finished successfully.
+test test_cli_manifest_custom_header_workspace_and_target_override ... ok
+test test_cli_python_aot_generation ... ok
+Parsing schema: /tmp/.tmppdOm1g/event.xsd
+Parsing schema: /tmp/.tmp9wbqgI/event.xsd
+  Namespace: urn:events
+  Types: 1 total (1 structs, 0 enums, 0 unions, 0 simple restrictions)
+  Root elements: 0
+  Namespace: urn:events
+  Types: 1 total (1 structs, 0 enums, 0 unions, 0 simple restrictions)
+  Root elements: 0
+Code generation complete.
+test test_cli_python_aot_rejects_dataclass_style_and_slots ... ok
+test test_cli_rust_rkyv_feature ... ok
+Code generation complete.
+test test_cli_rust_phf_feature ... ok
+go: creating new go.mod: module crm
+test test_cli_multiple_root_element_selection ... ok
+go: to add module requirements and sums:
+	go mod tidy
+test completion_candidates_follow_target_validation ... ok
+test invalid_schema_grammar_and_types_fail_before_generation ... ok
+test test_cli_transcode_bidirectional ... ok
+test test_cli_validate_valid_and_invalid ... ok
+Parsing schema: /tmp/.tmp3QB74Z/item.xsd
+  Namespace: urn:store
+  Types: 1 total (1 structs, 0 enums, 0 unions, 0 simple restrictions)
+  Root elements: 0
+Code generation complete.
+test test_polyxml_toml_manifest_build ... ok
+Parsing schema: /tmp/.tmp3QB74Z/item.xsd
+  Namespace: urn:store
+  Types: 1 total (1 structs, 0 enums, 0 unions, 0 simple restrictions)
+  Root elements: 0
+Code generation complete.
+test test_cli_typescript_valibot_and_typebox_backend ... ok
+test bash_completion_filters_values_in_the_shell ... ok
+test unified_help_shows_generation_options ... ok
+test test_cli_root_element_selection ... ok
+test test_root_selection_keeps_imported_module_types ... ok
+test test_java_csharp_model_style_options_and_manifest ... ok
+test validate_and_generate_reject_upa_violations ... ok
+test unified_manifest_forms_generate_identical_output_and_validate_early ... ok
+test zsh_completion_filters_values_when_available ... ok
+test unsupported_xsd_alternatives_fail_explicitly ... ok
+test unified_options_fail_before_schema_io_including_dry_run ... ok
+test unified_supported_backends_and_styles_validate ... ok
+=== RUN   TestAccountE2E
+--- PASS: TestAccountE2E (0.00s)
+PASS
+ok  	crm	0.003s
+test test_cli_go_generation ... ok
+E2E C++20 driver passed!
+test test_cli_cpp_generation ... ok
+test test_cli_java_generation ... ok
+test test_cli_shared_modules_deduplication ... ok
+  Determining projects to restore...
+  Restored /tmp/.tmpxVkTZW/cli_csharp_app/CrmCliApp.csproj (in 213 ms).
+test test_cli_typescript_generation ... ok
+  CrmCliApp -> /tmp/.tmpxVkTZW/cli_csharp_app/bin/Debug/net8.0/CrmCliApp.dll
+
+Build succeeded.
+    0 Warning(s)
+    0 Error(s)
+
+Time Elapsed 00:00:01.45
+E2E C# CLI test passed successfully!
+test test_cli_csharp_generation ... ok
+test test_cli_rust_split_units_and_chunking ... ok
+
+test result: ok. 47 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 9.86s
+
+     Running unittests src/lib.rs (target/followup-registry-verification/debug/deps/polyxml_js-878a75d7b7901cc9)
+
+running 0 tests
+
+test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running unittests src/lib.rs (target/followup-registry-verification/debug/deps/_polyxml-a668b0910babaf29)
+
+running 0 tests
+
+test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+     Running unittests src/lib.rs (target/followup-registry-verification/debug/deps/polyxml_wasm-d510c7f48918b595)
+
+running 0 tests
+
+test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+   Doc-tests polyxml
+
+running 0 tests
+
+test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+   Doc-tests polyxml_cli
+
+running 0 tests
+
+test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+   Doc-tests polyxml_wasm
+
+running 0 tests
+
+test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+==> [4/6] Compiling Python PyO3 extension (maturin develop)...
+🍹 Building a mixed python/rust project
+🐍 Found CPython 3.14 at /home/bailey/github/PolyXML/.venv/bin/python
+🔗 Found pyo3 bindings with abi3-py3.12 support
+📡 Using build options features from pyproject.toml
+Using Python 3.14.4 environment at: /home/bailey/github/PolyXML/.venv
+Checked 6 packages in 0.87ms
+   Compiling syn v3.0.5
+   Compiling serde_core v1.0.229
+   Compiling serde_derive v1.0.229
+   Compiling serde v1.0.229
+   Compiling pyo3-ffi v0.29.2
+   Compiling syn v2.0.119
+   Compiling fastrand v2.5.0
+   Compiling phf_generator v0.14.0
+   Compiling pyo3-macros-backend v0.29.2
+   Compiling thiserror-impl v2.0.21
+   Compiling serde_json v1.0.151
+   Compiling minijinja v2.24.0
+   Compiling thiserror v2.0.21
+   Compiling pyo3 v0.29.2
+   Compiling pyo3-macros v0.29.2
+   Compiling phf_codegen v0.14.0
+   Compiling quick-xml v0.42.0
+   Compiling polyxml v0.34.6 (/home/bailey/github/PolyXML/crates/polyxml-core)
+   Compiling polyxml-python v0.34.6 (/home/bailey/github/PolyXML/crates/polyxml-python)
+    Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.40s
+📦 Built wheel for abi3 Python ≥ 3.12 to /tmp/.tmpxP5qHa/polyxml-0.34.6-cp312-abi3-linux_x86_64.whl
+✏️ Setting installed package as editable
+🛠 Installed polyxml-0.34.6
+==> [5/6] Running Python Ruff checks...
+All checks passed!
+10 files already formatted
+==> [6/6] Running Python tests with 100% statement & branch coverage...
+........................................................................ [ 64%]
+........................................                                 [100%]
+================================ tests coverage ================================
+_______________ coverage: platform linux, python 3.14.4-final-0 ________________
+
+Name    Stmts   Miss Branch BrPart  Cover   Missing
+---------------------------------------------------
+TOTAL     181      0     58      0   100%
+
+3 files skipped due to complete coverage.
+Required test coverage of 100% reached. Total coverage: 100.00%
+112 passed in 0.52s
+✨ All PolyXML dual-language quality gates passed!
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/read-fixed-guard.patch b/research/data/runtime-followups-2026-10-03/performance-experiments/read-fixed-guard.patch
new file mode 100644
index 0000000..44dd5d1
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/read-fixed-guard.patch
@@ -0,0 +1,17 @@
+diff --git a/crates/polyxml-core/src/parser.rs b/crates/polyxml-core/src/parser.rs
+index afc027e..8c91b0f 100644
+--- a/crates/polyxml-core/src/parser.rs
++++ b/crates/polyxml-core/src/parser.rs
+@@ -123,8 +123,10 @@ impl StackFrame {
+         }
+ 
+         for (index, field) in self.schema.fields.iter().enumerate() {
+-            if let Some(value) = self.values[index].as_ref() {
+-                crate::schema::validate_fixed(field, value)?;
++            if field.fixed_value.is_some() {
++                if let Some(value) = self.values[index].as_ref() {
++                    crate::schema::validate_fixed(field, value)?;
++                }
+             }
+         }
+         Ok(PolyValue::Record {
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/read-fixed-guard.tar.gz b/research/data/runtime-followups-2026-10-03/performance-experiments/read-fixed-guard.tar.gz
new file mode 100644
index 0000000..7acc3f6
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/rejected-shared-workspace-test-preflight.txt b/research/data/runtime-followups-2026-10-03/performance-experiments/rejected-shared-workspace-test-preflight.txt
new file mode 100644
index 0000000..d0927e6
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/rejected-shared-workspace-test-preflight.txt
@@ -0,0 +1,30 @@
+memcap: <=7766 MiB (60% of 12944 MiB available) [systemd MemoryMax, swap off]
+   Compiling polyxml v0.34.6 (/home/bailey/github/polyxml-mixed-writer/crates/polyxml-core)
+    Finished `test` profile [unoptimized + debuginfo] target(s) in 1.08s
+     Running tests/test_mixed_nil.rs (/home/bailey/github/PolyXML/target/followup-borrow-verification/debug/deps/test_mixed_nil-1aec7ae934470d6f)
+
+running 2 tests
+test nil_scalar_and_nested_items_keep_order_and_differ_from_empty_strings ... FAILED
+test nil_instance_prefix_does_not_rebind_the_element_namespace ... FAILED
+
+failures:
+
+---- nil_scalar_and_nested_items_keep_order_and_differ_from_empty_strings stdout ----
+
+thread 'nil_scalar_and_nested_items_keep_order_and_differ_from_empty_strings' (503936) panicked at crates/polyxml-core/tests/test_mixed_nil.rs:41:63:
+called `Result::unwrap()` on an `Err` value: SerializationError("Invalid mixed content value for text")
+
+---- nil_instance_prefix_does_not_rebind_the_element_namespace stdout ----
+
+thread 'nil_instance_prefix_does_not_rebind_the_element_namespace' (503935) panicked at crates/polyxml-core/tests/test_mixed_nil.rs:61:10:
+called `Result::unwrap()` on an `Err` value: SerializationError("Invalid mixed content value for text")
+note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
+
+
+failures:
+    nil_instance_prefix_does_not_rebind_the_element_namespace
+    nil_scalar_and_nested_items_keep_order_and_differ_from_empty_strings
+
+test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+
+error: test failed, to rerun pass `-p polyxml --test test_mixed_nil`
diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/variant-registry-all-empty-screen.tar.gz b/research/data/runtime-followups-2026-10-03/performance-experiments/variant-registry-all-empty-screen.tar.gz
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/variant-registry-final-core.tar.gz b/research/data/runtime-followups-2026-10-03/performance-experiments/variant-registry-final-core.tar.gz
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/variant-registry-final-dispatch.tar.gz b/research/data/runtime-followups-2026-10-03/performance-experiments/variant-registry-final-dispatch.tar.gz
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/variant-registry-screen.tar.gz b/research/data/runtime-followups-2026-10-03/performance-experiments/variant-registry-screen.tar.gz
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diff --git a/research/data/runtime-followups-2026-10-03/performance-experiments/variant-registry.patch b/research/data/runtime-followups-2026-10-03/performance-experiments/variant-registry.patch
new file mode 100644
index 0000000..3825198
--- /dev/null
+++ b/research/data/runtime-followups-2026-10-03/performance-experiments/variant-registry.patch
@@ -0,0 +1,197 @@
+diff --git a/crates/polyxml-core/src/schema.rs b/crates/polyxml-core/src/schema.rs
+index 920a2a1..8724531 100644
+--- a/crates/polyxml-core/src/schema.rs
++++ b/crates/polyxml-core/src/schema.rs
+@@ -1,4 +1,5 @@
+ use std::collections::HashMap;
++use std::sync::atomic::{AtomicBool, Ordering};
+ use std::sync::{Arc, RwLock};
+ 
+ #[derive(Debug, Clone, PartialEq, Eq)]
+@@ -106,6 +107,12 @@ impl FieldSchema {
+     }
+ }
+ 
++#[derive(Debug, Default)]
++struct VariantRegistry {
++    schemas: RwLock<Vec<Arc<ModelSchema>>>,
++    populated: AtomicBool,
++}
++
+ #[derive(Debug, Clone)]
+ pub struct ModelSchema {
+     pub name: String,
+@@ -125,7 +132,7 @@ pub struct ModelSchema {
+     pub content_pattern: Option<regex::Regex>,
+     /// Concrete derivations eligible for `xsi:type` dispatch. Python may
+     /// refresh this registry when subclasses are defined after first use.
+-    variants: Arc<RwLock<Vec<Arc<ModelSchema>>>>,
++    variants: Arc<VariantRegistry>,
+ }
+ 
+ impl ModelSchema {
+@@ -136,12 +143,27 @@ impl ModelSchema {
+     /// Register the concrete derivations eligible for `xsi:type` dispatch.
+     /// Replaces the registry when subclasses are discovered after first use.
+     pub fn set_variants(&self, variants: Vec<Arc<ModelSchema>>) {
+-        *self.variants.write().unwrap_or_else(|p| p.into_inner()) = variants;
++        let mut registered = self
++            .variants
++            .schemas
++            .write()
++            .unwrap_or_else(|p| p.into_inner());
++        *registered = variants;
++        // Publish emptiness while holding the registry lock. Cloned schemas
++        // share this flag, so later registration/clearing cannot leave a stale
++        // per-schema dispatch plan. Nonempty lookups still use the lock.
++        self.variants
++            .populated
++            .store(!registered.is_empty(), Ordering::Release);
+     }
+ 
+     /// Registered derivations for `xsi:type` dispatch (empty when none).
+     pub fn variants(&self) -> Vec<Arc<ModelSchema>> {
++        if !self.has_variants() {
++            return Vec::new();
++        }
+         self.variants
++            .schemas
+             .read()
+             .unwrap_or_else(|p| p.into_inner())
+             .clone()
+@@ -149,16 +171,16 @@ impl ModelSchema {
+ 
+     /// Whether any `xsi:type` derivations are registered for this type.
+     pub fn has_variants(&self) -> bool {
+-        !self
+-            .variants
+-            .read()
+-            .unwrap_or_else(|p| p.into_inner())
+-            .is_empty()
++        self.variants.populated.load(Ordering::Acquire)
+     }
+ 
+     /// Look up a derivation by the QName local part of an `xsi:type` value.
+     pub fn find_variant(&self, local: &[u8]) -> Option<Arc<ModelSchema>> {
++        if !self.has_variants() {
++            return None;
++        }
+         self.variants
++            .schemas
+             .read()
+             .unwrap_or_else(|p| p.into_inner())
+             .iter()
+@@ -168,7 +190,11 @@ impl ModelSchema {
+ 
+     /// Look up a derivation by its complete QName.
+     pub fn find_variant_qname(&self, namespace: &str, local: &[u8]) -> Option<Arc<ModelSchema>> {
++        if !self.has_variants() {
++            return None;
++        }
+         self.variants
++            .schemas
+             .read()
+             .unwrap_or_else(|p| p.into_inner())
+             .iter()
+@@ -180,7 +206,11 @@ impl ModelSchema {
+ 
+     /// Whether `candidate` is a registered derivation of `self`.
+     pub fn matches_variant(&self, candidate: &ModelSchema) -> bool {
++        if !self.has_variants() {
++            return false;
++        }
+         self.variants
++            .schemas
+             .read()
+             .unwrap_or_else(|p| p.into_inner())
+             .iter()
+@@ -655,7 +685,7 @@ impl ModelSchemaBuilder {
+             is_abstract: self.is_abstract,
+             strict_root: self.strict_root,
+             content_pattern: self.content_pattern,
+-            variants: Arc::new(RwLock::new(Vec::new())),
++            variants: Arc::new(VariantRegistry::default()),
+         })
+     }
+ }
+diff --git a/crates/polyxml-core/tests/test_variant_registry.rs b/crates/polyxml-core/tests/test_variant_registry.rs
+new file mode 100644
+index 0000000..9502c68
+--- /dev/null
++++ b/crates/polyxml-core/tests/test_variant_registry.rs
+@@ -0,0 +1,75 @@
++use std::sync::Arc;
++
++use polyxml::schema::ModelSchema;
++
++#[test]
++fn registration_and_clearing_are_visible_to_schema_clones() {
++    let base = ModelSchema::builder("Base").build();
++    let clone = (*base).clone();
++    let derived = ModelSchema::builder("Derived")
++        .namespace("urn:derived")
++        .build();
++    assert!(!clone.has_variants());
++    assert!(clone.variants().is_empty());
++    base.set_variants(vec![Arc::clone(&derived)]);
++    assert!(clone.has_variants());
++    assert!(Arc::ptr_eq(&clone.variants()[0], &derived));
++    assert!(Arc::ptr_eq(
++        &clone.find_variant(b"Derived").unwrap(),
++        &derived
++    ));
++    assert!(clone.find_variant_qname("urn:other", b"Derived").is_none());
++    assert!(Arc::ptr_eq(
++        &clone.find_variant_qname("urn:derived", b"Derived").unwrap(),
++        &derived
++    ));
++    assert!(clone.matches_variant(&derived));
++    clone.set_variants(Vec::new());
++    assert!(!base.has_variants());
++    assert!(base.variants().is_empty());
++    assert!(base.find_variant(b"Derived").is_none());
++    assert!(!base.matches_variant(&derived));
++    clone.set_variants(vec![Arc::clone(&derived)]);
++    assert!(base.has_variants());
++    assert!(base.matches_variant(&derived));
++}
++
++#[test]
++fn concurrent_registry_updates_keep_complete_variant_snapshots() {
++    let base = ModelSchema::builder("Base").build();
++    let derived = ModelSchema::builder("Derived").build();
++    std::thread::scope(|scope| {
++        scope.spawn(|| {
++            for index in 0..4096 {
++                base.set_variants(if index % 2 == 0 {
++                    Vec::new()
++                } else {
++                    vec![Arc::clone(&derived)]
++                });
++            }
++            base.set_variants(vec![Arc::clone(&derived)]);
++        });
++        for _ in 0..4 {
++            scope.spawn(|| {
++                for _ in 0..4096 {
++                    // These calls can observe different registry revisions.
++                    // Each populated snapshot must contain the original Arc.
++                    let _ = base.has_variants();
++                    let variants = base.variants();
++                    assert!(variants.len() <= 1);
++                    for variant in variants {
++                        assert!(Arc::ptr_eq(&variant, &derived));
++                    }
++                    if let Some(variant) = base.find_variant(b"Derived") {
++                        assert!(Arc::ptr_eq(&variant, &derived));
++                    }
++                }
++            });
++        }
++    });
++    assert!(base.has_variants());
++    assert!(Arc::ptr_eq(&base.variants()[0], &derived));
++    base.set_variants(Vec::new());
++    assert!(!base.has_variants());
++    assert!(base.variants().is_empty());
++}
diff --git a/research/runtime-followup-experiments-2026-10-03.md b/research/runtime-followup-experiments-2026-10-03.md
new file mode 100644
index 0000000..cefea08
--- /dev/null
+++ b/research/runtime-followup-experiments-2026-10-03.md
@@ -0,0 +1,121 @@
+# Runtime follow-up experiments — October 3, 2026
+
+These isolated experiments compare against `1819c91` from the runtime investigation
+in draft PR #137. They do not change main. All timing consumers use matched source,
+Criterion locks and toolchain, and alternate baseline/candidate process order.
+Heavy runs are serial under the repository memory cap with one Cargo worker.
+Raw samples, per-process confidence intervals, source patches, revision metadata
+and focused-test logs are retained in [the evidence directory](data/runtime-followups-2026-10-03/performance-experiments/).
+
+## Empty variant registry (`42efd1f`)
+
+A shared atomic populated flag avoids the registry lock when no variants exist.
+The setter updates the flag while holding the write lock; schemas and their
+clones share it. Tests cover set/clear and concurrent registry access.
+
+Three process pairs, 100 samples, 3-second warmup and 5-second measurement:
+
+| Consumer | Candidate time change |
+| --- | ---: |
+| Catalog read, 1,000 items | +0.25% |
+| Catalog read, 10,000 items | +0.00% |
+| Sensor read | +0.49% |
+| Catalog write, 1,000 items | -0.90% |
+| Catalog write, 10,000 items | -1.02% |
+| Sensor write | -4.98% (about 11 ns) |
+| 1,000-item empty-registry read | -1.90% |
+| 1,000-item registered-variant read | +1.56% |
+| 1,000-item empty-registry write | -6.81% |
+| 1,000-item registered-variant write | +0.77% |
+
+Negative means faster. Empty-registry writes improved in every process pair;
+registered reads slowed in all three. Registered writes were noisy (-1.69% to
++6.93% per pair). Ordinary catalog reads did not improve. This is a workload
+tradeoff, not a broad recovery of the historical parsing regression. Keep it
+experimental pending review of the additional synchronization and populated path.
+
+The registry branch passes the complete quality gate: 323 Rust tests, strict
+workspace formatting and Clippy, Ruff, and 112 Python tests with 100% statement
+and branch coverage. An initial gate stopped because the local tsc directory
+was absent from PATH; the complete rerun with the prepared toolchain passed.
+Both logs are retained.
+
+Allocation counts and requested bytes match the baseline for the three plain
+payload sizes. Simulated Callgrind instruction counts change by about -0.12%
+on reads and -0.55% on writes; they are not hardware cycle measurements.
+
+## Borrow parent schema (`3017a88`)
+
+Replace the per-child Arc clone with a borrow from the parent frame; end the
+borrow before mutating the stack. Mixed kinds retain one string allocation.
+Wildcard, mixed, nil, depth-limit, fixed-value and xsi:type focused tests pass.
+Two screening process pairs, 50 samples, 1-second warmup, 2-second measurement:
+1,000-item reads +1.65%; 10,000-item reads -0.74%; sensor reads +1.53%.
+There is no consistent measured improvement. Do not promote this as a speedup.
+
+## Compact mixed parent state (`149140b`)
+
+Store a nonzero parent branch index instead of Option<String> and resolve the
+kind from the parent schema when its child ends. The frame is 16 bytes smaller
+on this host. A nested mixed regression verifies differing parent branch tables,
+text order, complete round trips and truncated XML errors. Focused tests pass.
+Screen settings match the borrowing experiment: 1,000-item reads +0.29%;
+10,000-item reads +2.63%; sensor reads +1.78%. Smaller state did not establish
+faster parsing. Retain the patch as a rejected performance prototype.
+
+## Fixed-value guard (`6cbd21f`)
+
+Checking whether a fixed value exists before looking up a parsed value produced
+-0.90%, +0.55% and +0.19% on the three read payloads in a short screen.
+This was neutral and was not selected.
+
+## Attribute fast path (`83706b3`)
+
+Skip nil/namespace attribute iteration when a tag has no attributes, and skip
+model attribute processing when its schema has neither attribute fields nor an
+attribute wildcard. Existing mixed, wildcard, depth, fixed-value and xsi:type
+focused tests pass. Both short process pairs improved reads by 1.6–3.5%.
+
+The longer three-pair comparison (100 samples, 3-second warmup, 5-second
+measurement) gives this complete binary tradeoff:
+
+| Consumer | Candidate time change |
+| --- | ---: |
+| Catalog read, 1,000 items | -1.55% |
+| Catalog read, 10,000 items | -1.74% |
+| Sensor read | -2.72% |
+| Catalog write, 1,000 items | +2.03% |
+| Catalog write, 10,000 items | +2.03% |
+| Sensor write | +1.83% |
+
+All three pairs improved reads and slowed writes. Serializer source is unchanged,
+but that does not prove unchanged binary performance. Keep the entire tradeoff;
+do not publish only the favorable reads. The combined result below also retains its writer tradeoffs.
+
+## Combined registry and attribute guards (`7535885`)
+
+Three process pairs with the same long-run settings improved catalog reads by
+3.53% (1,000 items) and 3.97% (10,000), and sensor reads by 4.08%. Writes changed
+by -1.11%, +1.48% and +3.45%, respectively. These are whole-consumer binary
+results; separate improvements do not combine predictably. This remains a
+prototype with no full quality gate and is not selected for merging.
+
+## Workspace artifact safeguard
+
+A shared debug workspace target also reused a previously linked mixed-nil test
+executable after switching to the isolated-loop worktree. Its symbols lacked
+the new helper and its tests rejected nil values, even though Cargo reported a
+core compile. The exact same source passes in a fresh, worktree-owned target
+whose executable contains the helper. The rejected preflight and isolated retry
+are retained. Use dedicated workspace targets for tests as well as CLIs/bindings.
+Standalone timing consumers use separate targets and explicit source dependency
+paths; the nil consumer's compiled symbol confirms the nil helper is present.
+
+## Limits
+
+These are single-host WSL2 results, not concurrent throughput or peak-memory
+measurements. Short screens reject weak hypotheses; they are not publishable
+claims of small improvements. Full quality gates are required before promoting
+an implementation; focused prototype tests alone are insufficient. Main remains
+unchanged. Existing PR #137 still contains the selected serializer, scalar-state
+and bounded pattern-cache improvements.