# PR#105: The First PR Through the Codex Gate

> **WARNING:** This document describes only the change applied in this PR.
> It may already be outdated once the next PR is merged.
> Historic PR documentation is not maintained along with new PRs; treat it as a snapshot.

## Related Links

- [PR#104](2026-10-14-PR#104-codex-gate-werkrevisor.md): `[codex] mode = "gate"` on werkrevisor.

## Problem

Since PR#104 the branch protection of werkrevisor requires the status `ai-review/codex`.
No PR has passed the gate yet; it is not known whether it holds and releases the merge as intended.

## Non-Goals

- No change of the runner or of werkrevisor.

## Solution

The PR tests the gate in two steps:

1. One commit adds a defect on purpose.
   An open Codex line comment must hold the merge with `ai-review/codex` on `pending`.
2. The next commit removes the defect, and the thread gets resolved.
   Then `ai-review/codex` must be `success` without a human approval, and the automerge must follow.

The squash merge contains neither the defect nor its removal.

The defect was `self.reviews_left < 0` instead of `<= 0`: a run did one review more than `max_reviews_per_run`.
Result of step 1: Codex found it as a line comment, and `ai-review/codex` was `pending`;
werkrevisor found it too, as ORANGE.

- Werkbaum: `#model.codex.gated` is in use.
- Version 0.41.4.

## Open Questions

None.

## Additional Changes

- A test for `max_reviews_per_run`; with the defect it fails, the CI was green without it.