- .github/labels.yml: declarative source of truth (29 namespaced labels)
- scripts/sync_labels.py + label-sync.yml: idempotent label sync (self-bootstraps on merge)
- labeler.yml + pr-labeler.yml: area:* labels by changed path (actions/labeler)
- pr-triage.yml: size/*, risk:*, needs-validation, first-time-contributor, reviewing
- issue-triage.yml: needs-triage on new issues (self-healing)
All PR workflows use pull_request_target but never check out or run PR code
(read changed-file metadata via the API only).
