Handle Gh Scrub

Use this skill for scheduled scrub turns.

Workflow

1. Read the requested scrub-* skill and apply it for this run.
   • When inspecting GitHub issues or PRs during triage, use gh ... --json <fields> or other explicit narrow flags instead of plain gh issue view / gh pr view.
2. Decide whether useful progress is available now.
3. If useful work exists, implement and validate it.
4. Publish outcomes before ending the run:
   • commit/push to a branch
   • open/update a PR when code or docs changed (follow .agents/skills/pull-request/SKILL.md)
5. If publish is blocked (token/permissions/infra), keep the run open and schedule follow-up.
6. If no-op is correct, explicitly report inspected scope and why no change was justified.

Completion Contract

• Do not end a run with uncommitted local changes.
• HARNESS_SCRUB_LOOP {"needs_followup_at":null} is only valid when either: