Dogfood — Gatekeep reviews Gatekeep

The Action repo itself runs Gatekeep on its own pull requests.

Piece	Path / value
Live workflow	`.github/workflows/gatekeep-pr.yml`
Action	`uses: ./` (repo-root `action.yml`)
Secret	`OPENROUTER_API_KEY` → step `env`
Trigger	`pull_request` (non-draft) + `workflow_dispatch`

How to see a review

Branch off main, make a tiny change, open a PR on https://git.potatolab.uk/layue13/gatekeep
Wait for the Gatekeep workflow (same Actions runner pool as other layue13 repos)
Look for the summary comment  on the PR

Consumer sample workflows remain under top-level workflows/ for copy-paste into other repos’ .github/workflows/.