Verification Before Completion
A guardrail against premature success claims. Before saying something is complete, fixed, or passing — and before committing or opening a PR — it requires you to actually run the verification command and read the result. No 'should work,' no assuming green. The rule is evidence first, claim second. Third-party skill from Jesse Vincent's Superpowers collection.
Simple install — no setup required
Download the skill file below
Add it to Claude — pick your platform:
Claude desktop app
- Open the Claude desktop app
- Go to Code, then Customize
- Click Create a new skill
- Upload the skill file you downloaded
claude.ai (web)
- Go to Customize, then Skills
- Click +, then Create a new skill
- Upload the skill file you downloaded
Say a trigger phrase to activate it
What Claude does with this skill
The following is the exact SKILL.md content Claude reads when this skill is
active. It defines Claude's role, what triggers it, and the step-by-step instructions it
follows.
The full SKILL.md for this third-party skill lives on GitHub at the
pinned commit we reviewed. Open it to read the exact instructions Claude will follow.