diff --git a/Cargo.lock b/Cargo.lock
index 6a9ebb2..8a373c8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -79,6 +79,27 @@ version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c08606f8c3cbf4ce6ec8e28fb0014a2c086708fe954eaa885384a6165172e7e8"
 
+[[package]]
+name = "beyond-launch"
+version = "0.3.2"
+dependencies = [
+ "aho-corasick",
+ "anyhow",
+ "clap",
+ "criterion",
+ "dockerfile-parser",
+ "dotenvy",
+ "ignore",
+ "phf",
+ "rayon",
+ "regex",
+ "serde",
+ "serde_json",
+ "serde_yml",
+ "thiserror 2.0.18",
+ "toml",
+]
+
 [[package]]
 name = "block-buffer"
 version = "0.10.4"
@@ -519,27 +540,6 @@ version = "11.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d6790f58c7ff633d8771f42965289203411a5e5c68388703c06e14f24770b41e"
 
-[[package]]
-name = "beyond-launch"
-version = "0.3.1"
-dependencies = [
- "aho-corasick",
- "anyhow",
- "clap",
- "criterion",
- "dockerfile-parser",
- "dotenvy",
- "ignore",
- "phf",
- "rayon",
- "regex",
- "serde",
- "serde_json",
- "serde_yml",
- "thiserror 2.0.18",
- "toml",
-]
-
 [[package]]
 name = "pest"
 version = "2.8.6"
diff --git a/Cargo.toml b/Cargo.toml
index 694ef0b..c8f89aa 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "beyond-launch"
-version = "0.3.1"
+version = "0.3.2"
 edition = "2024"
 description = "Analyze a project and detect deployable services, languages, frameworks, commands, and env vars"
 license = "MIT"
diff --git a/src/discovery.rs b/src/discovery.rs
index 51f7029..6e16fe8 100644
--- a/src/discovery.rs
+++ b/src/discovery.rs
@@ -16,8 +16,10 @@ pub fn discover(
     fs: &dyn FileSystem,
 ) -> Result<Discovery, LaunchError> {
     walk(root, &mut signals, fs)?;
-    let outputs = generate(&mut signals, fs);
-    Ok(assemble(outputs, root))
+    let (outputs, warnings) = generate(&mut signals, fs);
+    let mut discovery = assemble(outputs, root);
+    discovery.warnings = warnings;
+    Ok(discovery)
 }
 
 // -- Step 1: Walk + Observe --
@@ -161,21 +163,27 @@ pub fn discover_local_impl(
     fs: &dyn FileSystem,
 ) -> Result<Discovery, LaunchError> {
     walk_local(root, &mut signals)?;
-    let outputs = generate(&mut signals, fs);
-    Ok(assemble(outputs, root))
+    let (outputs, warnings) = generate(&mut signals, fs);
+    let mut discovery = assemble(outputs, root);
+    discovery.warnings = warnings;
+    Ok(discovery)
 }
 
 // -- Step 2: Generate --
 
-pub fn generate(signals: &mut [Box<dyn Signal>], fs: &dyn FileSystem) -> Vec<SignalOutput> {
+pub fn generate(
+    signals: &mut [Box<dyn Signal>],
+    fs: &dyn FileSystem,
+) -> (Vec<SignalOutput>, Vec<String>) {
     let mut outputs = Vec::with_capacity(signals.len());
+    let mut warnings = Vec::new();
     for signal in signals.iter_mut() {
         match signal.generate(fs) {
             Ok(output) => outputs.push(output),
-            Err(e) => eprintln!("signal {} failed: {e}", signal.name()),
+            Err(e) => warnings.push(format!("signal {} failed: {e}", signal.name())),
         }
     }
-    outputs
+    (outputs, warnings)
 }
 
 // -- Step 3: Assemble --
@@ -210,7 +218,7 @@ fn assemble(outputs: Vec<SignalOutput>, root: &Path) -> Discovery {
         }
     }
 
-    Discovery { services, monorepo }
+    Discovery { services, monorepo, ..Default::default() }
 }
 
 /// Get the "dir name" for a path — used for derived name detection.
diff --git a/src/signals/docker_compose.rs b/src/signals/docker_compose.rs
index 4c6695e..de2d473 100644
--- a/src/signals/docker_compose.rs
+++ b/src/signals/docker_compose.rs
@@ -387,10 +387,11 @@ impl Signal for DockerComposeSignal {
                     for rel in paths {
                         let resolved = compose_dir.join(rel);
                         if let Ok(bytes) = fs.read_file(&resolved) {
-                            let contents = String::from_utf8_lossy(&bytes);
-                            let file_path = resolved.to_string_lossy();
-                            let file_env = parse_env_file_keys(&contents, &file_path);
-                            merge_env_vars(&mut env, &file_env);
+                            if let Ok(contents) = String::from_utf8(bytes) {
+                                let file_path = resolved.to_string_lossy();
+                                let file_env = parse_env_file_keys(&contents, &file_path);
+                                merge_env_vars(&mut env, &file_env);
+                            }
                         }
                     }
                 }
diff --git a/src/types.rs b/src/types.rs
index 9062c9c..07abfef 100644
--- a/src/types.rs
+++ b/src/types.rs
@@ -15,6 +15,9 @@ pub struct Discovery {
     pub services: Vec<Service>,
     #[serde(skip_serializing_if = "Option::is_none")]
     pub monorepo: Option<Monorepo>,
+    /// Signals that failed during generation; non-empty means the result may be incomplete.
+    #[serde(default, skip_serializing_if = "Vec::is_empty")]
+    pub warnings: Vec<String>,
 }
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize)]