chore: add project planning-with-files hooks

.codex/hooks/stop.py

@@ -0,0 +1,25 @@
+#!/usr/bin/env python3
+from __future__ import annotations
+
+import codex_hook_adapter as adapter
+
+
+def main() -> None:
+    payload = adapter.load_payload()
+    root = adapter.cwd_from_payload(payload)
+
+    if not adapter.is_session_attached(root, adapter.session_id_from_payload(payload)):
+        return
+
+    stdout, _ = adapter.run_shell_script("stop.sh", root)
+    result = adapter.parse_json(stdout)
+
+    message = result.get("followup_message")
+    if not isinstance(message, str) or not message:
+        return
+
+    adapter.emit_json({"systemMessage": message})
+
+
+if __name__ == "__main__":
+    raise SystemExit(adapter.main_guard(main))