kin: auto-commit after pipeline

agents/runner.py

@@ -826,7 +826,7 @@ _WORKTREE_ROLES = {"backend_dev", "frontend_dev", "debugger"}
 _DEV_GUARD_ROLES = {"backend_dev", "frontend_dev", "debugger"}
 
 
-def _detect_test_command(project_path: str) -> str | None:
+def _detect_test_command(project_path: str, role: str | None = None) -> str | None:
     """Auto-detect test command by inspecting project files.
 
     Candidates (in priority order):
@@ -835,10 +835,22 @@ def _detect_test_command(project_path: str) -> str | None:
     3. pytest      — pyproject.toml or setup.py exists
     4. npx tsc --noEmit — tsconfig.json exists
 
+    When role='backend_dev' and a Python project marker (pyproject.toml / setup.py)
+    is present, pytest is returned directly — bypassing make test.  This prevents
+    false-positive failures in mixed projects whose Makefile test target also runs
+    frontend (e.g. vitest) commands that may be unrelated to backend changes.
+
     Returns the first matching command, or None if no framework is detected.
     """
     path = Path(project_path)
 
+    # For backend_dev: Python project marker takes precedence over Makefile.
+    # Rationale: make test in mixed projects often runs frontend tests too;
+    # backend changes should only be validated by the Python test runner.
+    if role == "backend_dev":
+        if (path / "pyproject.toml").is_file() or (path / "setup.py").is_file():
+            return f"{sys.executable} -m pytest"
+
     # 1. make test
     makefile = path / "Makefile"
     if makefile.is_file():
@@ -1882,7 +1894,7 @@ def run_pipeline(
             if p_test_cmd_override:
                 p_test_cmd = p_test_cmd_override
             else:
-                p_test_cmd = _detect_test_command(p_path_str)
+                p_test_cmd = _detect_test_command(p_path_str, role=role)
 
             if p_test_cmd is None:
                 # No test framework detected — skip without blocking pipeline