check

name	check
description	Pre-merge review. Reviews the diff, auto-fixes safe issues, flags destructive commands, runs verification. Evidence before assertions.

/check — Verify Before You Ship

Review the diff, run verification, flag risks. No claim of "done" without evidence.

When to Use

• After completing a task
• Before committing or creating a PR
• Before claiming something "works" or "is fixed"

Workflow

1. Review the diff. git diff — read every change. Look for:

   • Leftover debug code (console.log, print, etc.)
   • Unintended file changes
   • Missing error handling
   • Hardcoded values that should be config
   • Security issues (injection, exposed secrets)

2. Run verification.

   • Full test suite (or relevant subset)
   • Lint / typecheck
   • Build if applicable

3. Auto-fix safe issues. Formatting, import ordering, obvious leftovers.

4. Flag destructive patterns. Before running force-push, hard reset, or git clean, confirm with the user.

5. Produce evidence.

   Tests: 42 passed, 0 failed
   Lint: clean
   Typecheck: clean
   Diff: 3 files, +127 -14
   

Commit

When verification passes:

1. Draft a descriptive commit message (focused on WHY, not WHAT).
2. Stage specific files — never git add -A or git add ..
3. Commit. Never amend published commits.

Article Reference

"Give Claude a way to verify its work — this is the single highest-leverage thing you can do." / "Common failure: trust-then-verify gap."