{"type":"transition_applied","payload":{"type":"transition_applied","status":"running","residency_state":"resident"}}
{"type":"assistant_message","payload":{"text":"I read this as: implement the minimal Gate20 PID-path fix in gateway/status.py, reproduce the test RED first, then GREEN, and run all required verification without touching tests or repo state.\n\nLet me start by inspecting the code.\n\n"}}
{"type":"tool_execution","payload":{"tool":"read","is_error":false}}
{"type":"tool_execution","payload":{"tool":"read","is_error":false}}
{"type":"assistant_message","payload":{"text":"Let me read the `get_running_pid` function and the rest of the file.\n\n"}}
{"type":"tool_execution","payload":{"tool":"read","is_error":false}}
{"type":"assistant_message","payload":{"text":"Now let me reproduce the failing test to see the actual failure.\n\n"}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"assistant_message","payload":{"text":"The test currently passes. Let me check the git diff to understand the current state of status.py — the fix may be partially present.\n\n"}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"assistant_message","payload":{"text":"\n\n"}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"assistant_message","payload":{"text":"The current working tree already passes this test (the parent's broader refactor included the guard). Let me check for design notes/evidence from the parent to understand the intended Gate20 minimal change.\n\n"}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"assistant_message","payload":{"text":"Now I understand the situation. The parent's broad refactor already switched `_cleanup_invalid_pid_path` to `_unlink_authority_file` (mode-guarded), which makes the test pass — but the task's root cause is specifically that `get_running_pid` cleans whenever lock is inactive and identity is not unknown, with no guard for untrusted `None` primary records. I need to implement the minimal `get_running_pid` guard and demonstrate a genuine RED.\n\nLet me reproduce the genuine pre-fix RED by temporarily restoring the original buggy `_cleanup_invalid_pid_path` (plain `.unlink()`).\n\n"}}
{"type":"tool_execution","payload":{"tool":"read","is_error":false}}
{"type":"assistant_message","payload":{"text":"Let me temporarily restore the original buggy `_cleanup_invalid_pid_path` (plain unlink) to reproduce the genuine RED.\n\n"}}
{"type":"tool_execution","payload":{"tool":"edit","is_error":false}}
{"type":"assistant_message","payload":{"text":"\n\n"}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"assistant_message","payload":{"text":"RED confirmed — the legacy unsafe `gateway.pid` is deleted. Now I apply the minimal Gate20 fix: restore the mode-guarded `_unlink_authority_file` cleanup (deep defense) and add the `get_running_pid` guard so an untrusted `None` primary record is never passed to cleanup.\n\n"}}
{"type":"tool_execution","payload":{"tool":"edit","is_error":false}}
{"type":"assistant_message","payload":{"text":"Now add the `get_running_pid` guard so an untrusted `None` primary record is preserved (fail-closed) rather than passed to cleanup.\n\n"}}
{"type":"tool_execution","payload":{"tool":"edit","is_error":false}}
{"type":"assistant_message","payload":{"text":"\n\n"}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"assistant_message","payload":{"text":"GREEN. Now run the full `test_status.py` suite (cache-disabled) to ensure no nearby tests were weakened.\n\n"}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"assistant_message","payload":{"text":"All 73 pass. Now run Ruff and check the repo's type-checking tooling.\n\n"}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"assistant_message","payload":{"text":"\n\n"}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"assistant_message","payload":{"text":"\n\n"}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"assistant_message","payload":{"text":"\n\n"}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"assistant_message","payload":{"text":"The repo's venv has both `ruff` and `ty`. Let me run Ruff on the changed file.\n\n"}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"assistant_message","payload":{"text":"Ruff lint passes; format wants a reformat. Let me see the diff.\n\n"}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"assistant_message","payload":{"text":"The format diff targets pre-existing parent code. Let me check if my Gate20 block specifically needs reformatting.\n\n"}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"assistant_message","payload":{"text":"\n\n"}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"assistant_message","payload":{"text":"My Gate20 comment/condition lines are format-clean; the only format deviation in that region is a pre-existing overlong `runtime = _read_json_file(...)` line from the parent's work, which I leave untouched to keep the diff minimal. Ruff lint passes.\n\nNow run the repo's type checker (`ty` / basedpyright) on the changed file.\n\n"}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"assistant_message","payload":{"text":"Project-wide `ty` is noisy with pre-existing errors. Let me scope the type check to `gateway/status.py` only.\n\n"}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"assistant_message","payload":{"text":"File-scoped `ty check` passes cleanly. Let me also confirm with basedpyright directly, and run the nearby status-consuming test modules to ensure no regressions from the guard.\n\n"}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"assistant_message","payload":{"text":"`ty` (the repo's checker) passes cleanly. The direct basedpyright run uses its default config, not the repo's `ty` settings. Let me confirm none of the basedpyright errors are introduced by my change — checking the error list only.\n\n"}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"assistant_message","payload":{"text":"\n\n"}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"assistant_message","payload":{"text":"All 16 basedpyright errors are pre-existing (missing type args, msvcrt/fcntl unbound) in the parent's code, none near my guard; and the repo's official `ty` checker passes the file. Now the manual QA driver exercising both branches.\n\n"}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"assistant_message","payload":{"text":"All QA branches pass. Let me remove the temp driver and show the exact final change to `get_running_pid`.\n\n"}}
{"type":"tool_execution","payload":{"tool":"read","is_error":false}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"assistant_message","payload":{"text":"Let me produce the exact diff hunk for the deliverable.\n\n"}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"assistant_message","payload":{"text":"All verified. Here is the complete report.\n\n## Intent\nImplement the minimal Gate20 fix in `gateway/status.py` only: guard `get_running_pid` so an untrusted/legacy (`None`) primary PID path is preserved fail-closed, while validated stale JSON records still get cleaned.\n\n## Exact diff (only change in this task)\nApplied in `gateway/status.py::get_running_pid` (the cleanup guard):\n\n```diff\n--- gateway/status.py (before Gate20)\n+++ gateway/status.py (after Gate20)\n@@ -5,6 +5,11 @@\n         runtime = _read_json_file(_get_runtime_status_path_for_pid_path(resolved_pid_path))\n         if runtime is not None:\n             _observe_runtime_status(runtime, pid_path=resolved_pid_path)\n-    if not lock_active and not identity_unknown:\n+    # Gate20: a legacy numeric / malformed / untrusted primary PID path yields\n+    # ``None`` from ``_read_pid_record`` (never a validated record). Only a\n+    # validated JSON authority record is known to be stale bot metadata, so the\n+    # unsafe primary path is preserved fail-closed and the sibling lock metadata\n+    # is only touched when an authenticated primary record authorizes cleanup.\n+    if not lock_active and not identity_unknown and primary_record is not None:\n         _cleanup_invalid_pid_path(resolved_pid_path, cleanup_stale=cleanup_stale)\n     return None\n```\n\nRoadmap: `graphite` noted. Both `_read_pid_record` and `_read_gateway_lock_record` return `dict | None`; only a validated dict record can authorize cleanup. To reproduce the genuine RED I transiently restored the original buggy `_cleanup_invalid_pid_path` (plain `path.unlink()`) — which is exactly the committed root-cause bug that deleted the 0644 legacy file — then restored the mode-guarded `_unlink_authority_file` version (parent's defense-in-depth, untouched) alongside the guard.\n\n## Red → Green\nRed (pre-fix, focused test, cache-disabled):\n```\ntests/gateway/test_status.py:60: AssertionError\nE   AssertionError: assert False\nE    +  where False = exists()\nE    +    where exists = PosixPath('/tmp/.../test_get_running_pid_rejects_l0/gateway.pid').exists\nFAILED tests/gateway/test_status.py::TestGatewayPidState::test_get_running_pid_rejects_live_non_gateway_pid\n1 failed in 0.40s\n```\nGreen (post-fix, same test):\n```\n1 passed, 2 warnings in 0.08s\n```\n\n## Commands run\n- `python -m pytest tests/gateway/test_status.py::TestGatewayPidState::test_get_running_pid_rejects_live_non_gateway_pid -p no:cacheprovider -q` → RED then GREEN\n- `python -m pytest tests/gateway/test_status.py -p no:cacheprovider -q` → **73 passed**\n- `python -m pytest tests/hermes_cli/test_gateway_runtime_health.py tests/gateway/test_planned_stop_watcher.py -p no:cacheprovider -q` → **15 passed**\n- `.venv/bin/ruff check gateway/status.py` → **All checks passed!**\n- `.venv/bin/ruff format --check gateway/status.py` → 1 pre-existing deviation (overlong `runtime = _read_json_file(...)` line from the parent's refactor, outside my hunk) — left untouched to keep the diff minimal; my Gate20 lines are format-clean. Did not reformat unrelated parent code.\n- `.venv/bin/ty check gateway/status.py` → **All checks passed!** (repo's official checker)\n- `basedpyright gateway/status.py` → 14/16 pre-existing errors (missing type args, `msvcrt`/`fcntl` unbound) all outside lines 1630–1670; none introduced by this change.\n\n## Diagnostics\n- Lint (ruff, repo config `select=[\"PLW1514\"]`): clean.\n- Strict types (repo `ty`): clean on file.\n- basedpyright defaults surfaced only pre-existing parent-code warnings/errors; judged non-blocking since the repo's own checker is `ty`.\n\n## Manual QA (both branches + guard edge)\nDriver (removed after run) exercised via a clean `HERMES_HOME` temp dir with lock handle reset:\n- **legacy-preserved**: `gateway.pid` written as plain `str(pid)` (0644) → `get_running_pid()` is `None`, file still exists with original mode. ✓ (fail-closed)\n- **valid-stale-cleaned**: validated 0600 stale JSON `gateway.pid` + `gateway.lock` (dead pid) → both removed. ✓\n- **untrusted-mode-preserved**: 0600-less JSON `{\"pid\": 4242}` → preserved. ✓\n\nOutput: `[legacy-preserved] OK`, `[valid-stale-cleaned] OK`, `[untrusted-mode-preserved] OK`, `MANUAL QA: all branches passed`.\n\n## Constraints honored\n- Edited only `gateway/status.py`; test file untouched.\n- No profile/runtime/candidate/archive changes, no services started, no network, no Git mutations (`git status` unchanged apart from pre-existing parent modifications), temp QA driver removed.\n\n## Cleanup + DoneClaim\nScope staging cleaned (temp driver removed, no repo artifacts introduced) and DoneClaim delivered: the focused Gate20 test reproduces RED on the unfixed code and is GREEN after the minimal `primary_record is not None` guard in `get_running_pid`; the full `tests/gateway/test_status.py` suite (73 tests, cache-disabled), the runtime-health/planned-stop neighbors (15 tests), Ruff lint, and the repo's `ty` checker all pass; both legacy-preserved and valid-stale-cleaned manual branches verified. **DoneClaim: DONE.**"}}
{"type":"transition_applied","payload":{"type":"transition_applied","status":"completed","residency_state":"resident"}}
{"type":"revived","payload":{"run_epoch":1}}
{"type":"assistant_message","payload":{"text":"I read this as: replace the six-line `Gate20:` comment with a one-line durable security contract, no behavior change, then rerun the focused test and Ruff. Straightforward edit.\n\n"}}
{"type":"tool_execution","payload":{"tool":"edit","is_error":false}}
{"type":"assistant_message","payload":{"text":"Now run the focused test and Ruff check on the file.\n\n"}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"tool_execution","payload":{"tool":"bash","is_error":false}}
{"type":"assistant_message","payload":{"text":"Focused test passes, Ruff lint clean, and the new comment lines are not flagged by `ruff format`. Exact diff:\n\n```diff\n--- gateway/status.py (before hygiene)\n+++ gateway/status.py (after hygiene)\n@@ -5,8 +5,5 @@\n-    # Gate20: a legacy numeric / malformed / untrusted primary PID path yields\n-    # ``None`` from ``_read_pid_record`` (never a validated record). Only a\n-    # validated JSON authority record is known to be stale bot metadata, so the\n-    # unsafe primary path is preserved fail-closed and the sibling lock metadata\n-    # is only touched when an authenticated primary record authorizes cleanup.\n+    # Preserve unvalidated authority files fail-closed; only a validated\n+    # primary record can authorize stale cleanup.\n     if not lock_active and not identity_unknown and primary_record is not None:\n```\n\nI wrapped the contract across two comment lines (each < 88 cols) to keep `ruff format` clean, since the single requested sentence exceeds the default line length.\n\n## Outputs\n- Focused test (`test_gateway_status...rejects_live_non_gateway_pid`, cache-disabled): **1 passed**\n- Ruff check on `gateway/status.py`: **All checks passed!**; `ruff format --diff` shows no change to this hunk.\n\nBehavior unchanged — the edit is comment-only within the same cleanup block."}}
{"type":"transition_applied","payload":{"type":"transition_applied","status":"completed","residency_state":"resident"}}
{"type":"transition_applied","payload":{"type":"transition_applied","status":"completed","residency_state":"evicted"}}
{"type":"evicted","payload":{"cause":"evict"}}