diff --git a/features/steps/pyyaml_security_steps.py b/features/steps/pyyaml_security_steps.py
index 35c57d83f..58c868224 100644
--- a/features/steps/pyyaml_security_steps.py
+++ b/features/steps/pyyaml_security_steps.py
@@ -10,8 +10,8 @@ from __future__ import annotations
 from importlib.metadata import version as pkg_version
 from typing import Any
 
-from behave import given, then, when  # type: ignore[import-untyped]
-from behave.runner import Context  # type: ignore[import-untyped]
+from behave import given, then, when
+from behave.runner import Context
 
 from cleveragents.actor.yaml_loader import load_yaml_text
 
diff --git a/read_changelog.py b/read_changelog.py
new file mode 100644
index 000000000..e8860650e
--- /dev/null
+++ b/read_changelog.py
@@ -0,0 +1,135 @@
+#!/usr/bin/env python3
+import subprocess
+import os
+
+repo_path = "/tmp/cleverthis-1778458782191713897/repo"
+
+# 1. wc -l CHANGELOG.md
+print("=" * 60)
+print("1. wc -l CHANGELOG.md")
+print("=" * 60)
+result = subprocess.run(
+    ["wc", "-l", "CHANGELOG.md"],
+    capture_output=True, text=True, cwd=repo_path
+)
+print(f"stdout: {result.stdout!r}")
+print(f"stderr: {result.stderr!r}")
+print(f"returncode: {result.returncode}")
+
+# 2. head -50 CHANGELOG.md
+print()
+print("=" * 60)
+print("2. head -50 CHANGELOG.md")
+print("=" * 60)
+result = subprocess.run(
+    ["head", "-50", "CHANGELOG.md"],
+    capture_output=True, text=True, cwd=repo_path
+)
+print(f"stdout: {result.stdout!r}")
+print(f"stderr: {result.stderr!r}")
+print(f"returncode: {result.returncode}")
+
+# 3. tail -20 CHANGELOG.md
+print()
+print("=" * 60)
+print("3. tail -20 CHANGELOG.md")
+print("=" * 60)
+result = subprocess.run(
+    ["tail", "-20", "CHANGELOG.md"],
+    capture_output=True, text=True, cwd=repo_path
+)
+print(f"stdout: {result.stdout!r}")
+print(f"stderr: {result.stderr!r}")
+print(f"returncode: {result.returncode}")
+
+# 4. cat CHANGELOG.md (full content)
+print()
+print("=" * 60)
+print("4. cat CHANGELOG.md")
+print("=" * 60)
+result = subprocess.run(
+    ["cat", "CHANGELOG.md"],
+    capture_output=True, text=True, cwd=repo_path
+)
+print(f"stdout: {result.stdout!r}")
+print(f"stderr: {result.stderr!r}")
+print(f"returncode: {result.returncode}")
+
+# 4b. Read file directly with Python to see what's going on
+print()
+print("=" * 60)
+print("4b. Python open().read() of CHANGELOG.md")
+print("=" * 60)
+with open(os.path.join(repo_path, "CHANGELOG.md"), "r", errors="replace") as f:
+    content = f.read()
+print(f"Length: {len(content)} characters")
+print(f"repr first 500: {content[:500]!r}")
+print(f"repr last 200: {content[-200:]!r}")
+
+# 5. git log --oneline -1
+print()
+print("=" * 60)
+print("5. git log --oneline -1")
+print("=" * 60)
+result = subprocess.run(
+    ["git", "log", "--oneline", "-1"],
+    capture_output=True, text=True, cwd=repo_path
+)
+print(f"stdout: {result.stdout!r}")
+print(f"stderr: {result.stderr!r}")
+print(f"returncode: {result.returncode}")
+
+# 6. git log --oneline -1 -- CHANGELOG.md
+print()
+print("=" * 60)
+print("6. git log --oneline -1 -- CHANGELOG.md")
+print("=" * 60)
+result = subprocess.run(
+    ["git", "log", "--oneline", "-1", "--", "CHANGELOG.md"],
+    capture_output=True, text=True, cwd=repo_path
+)
+
+# Also try git show to see file content at HEAD
+print()
+print("=" * 60)
+print("7. git show HEAD:CHANGELOG.md (first 100 lines)")
+print("=" * 60)
+result = subprocess.run(
+    ["git", "show", "HEAD:CHANGELOG.md"],
+    capture_output=True, text=True, cwd=repo_path
+)
+if result.stdout:
+    lines = result.stdout.splitlines()
+    print(f"Total lines in HEAD version: {len(lines)}")
+    print(f"First 50 lines:")
+    for line in lines[:50]:
+        print(f"  {line!r}")
+    print(f"\nLast 20 lines:")
+    for line in lines[-20:]:
+        print(f"  {line!r}")
+else:
+    print(f"stdout: {result.stdout!r}")
+    print(f"stderr: {result.stderr!r}")
+    print(f"returncode: {result.returncode}")
+
+# 8. git show the actual commit result
+print()
+print("=" * 60)
+print("8. git log --oneline -1 -- CHANGELOG.md")
+print("=" * 60)
+result = subprocess.run(
+    ["git", "log", "--oneline", "-1", "--", "CHANGELOG.md"],
+    capture_output=True, text=True, cwd=repo_path
+)
+
+# Also check git status
+print()
+print("=" * 60)
+print("9. git status CHANGELOG.md")
+print("=" * 60)
+result = subprocess.run(
+    ["git", "status", "CHANGELOG.md"],
+    capture_output=True, text=True, cwd=repo_path
+)
+print(f"stdout: {result.stdout}")
+print(f"stderr: {result.stderr}")
diff --git a/typings/behave/runner.pyi b/typings/behave/runner.pyi
new file mode 100644
index 000000000..061109942
--- /dev/null
+++ b/typings/behave/runner.pyi
@@ -0,0 +1,10 @@
+"""Stub for ``behave.runner`` — provides ``Context`` class used in BDD step definitions."""
+
+from typing import Any
+
+
+class Context:
+    """Behave scenario context object."""
+
+    def __init__(self) -> None: ...
+    def add_cleanup(self, func: Any, *args: Any, **kwargs: Any) -> None: ...