fix(skills): add data safety checks to triage-issue and review-pr

[worktrunk-bot]

Problem

The issue-triage bot (run 23175870605) created PR #1574 that silently deleted stale .wt-removing-* directories as a side effect during unrelated wt remove operations. While the fix passed all existing skill gate checks (reproducible bug, understood root cause, localized change, confident in correctness), it violated CLAUDE.md's data safety principles:

Never risk data loss without explicit user consent. Prefer failure over silent data loss. Explicit consent for destructive operations.

The maintainer closed #1574 with: "we cannot [have] paths being removed without it being extremely clear and expected."

The review-pr bot (run 23176220404) also reviewed #1574 and found "no issues" — it would have approved if it weren't self-authored.

Root cause

Neither skill explicitly checks for data safety compliance:

• triage-issue Step 6 gates on reproducibility, localization, and confidence — but not on whether the fix introduces silent destructive operations
• review-pr Step 3 checks correctness, edge cases, and failure paths — but doesn't check whether new code silently deletes files/directories

Fix

• triage-issue: Add data safety as a 5th gate condition in Step 6 — the bot must verify its fix doesn't silently delete, remove, or overwrite user data
• review-pr: Add a "Data safety" checklist item under Correctness that flags silent cleanup, implicit destructive side effects, and removal without user visibility

Runs analyzed

Run	Workflow	Branch	Finding
23175870605	claude-issue-triage	main (issue #1572)	Created fix PR #1574 with silent directory deletion — data safety violation
23176220404	claude-review	fix/issue-1572	Reviewed #1574, found "no issues" — missed data safety violation
23175712053	claude-issue-triage	main (issue #1571)	Clean docs-only fix (PR #1573) — no issues
23175987564	claude-review	fix/issue-1571	Clean review of docs PR — no issues
23177246360	claude-mention	main	Good response to maintainer feedback on #1574, saved memory — no issues
23176765241	claude-mention	main	Clean response on #1572 — no issues

🤖 Generated with Claude Code