diff --git a/justfile b/justfile
index 7976f3f..edc445a 100644
--- a/justfile
+++ b/justfile
@@ -25,11 +25,11 @@ test *args:
 
 # The gated full run: 100% line coverage required. CI runs this.
 test-ci:
-    uv run --no-sync pytest --cov=. --cov-report term-missing --cov-report xml --cov-fail-under=100
+    uv run --no-sync pytest --cov=. --cov-report term-missing --cov-report xml
 
 # Branch-coverage run (diagnostic; line coverage is the enforced gate, not branch).
 test-branch:
-    uv run --no-sync pytest --cov=. --cov-branch --cov-fail-under=100
+    uv run --no-sync pytest --cov=. --cov-branch
 
 # Run the guard-tier benchmark suite (zero-dep; pytest-benchmark). Excludes the
 # comparative tier, whose deps live in benchmarks/comparative and are not in this env.
diff --git a/pyproject.toml b/pyproject.toml
index a78ad3a..88d407d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -95,3 +95,4 @@ asyncio_default_fixture_loop_scope = "function"
 run.concurrency = ["thread"]
 run.omit = ["benchmarks/*"]
 report.exclude_also = ["if typing.TYPE_CHECKING:"]
+report.fail_under = 100