verification-before-completion

name	verification-before-completion
description	Use when completing any task. Evidence before claims, always.

Verification Before Completion

When to Use

∀ task completion, ∀ "it works" claims, ∀ pre-commit, ∀ pre-PR.

HARD-GATE

¬claim success without fresh verification evidence ∈ current session.

The Rule

If you didn't run the command ∈ this message, you cannot claim it passes.

Verification Checklist

∀ task marked DONE:

1. RUN tests: npm test ∨ specific spec file -> show output
2. RUN typecheck: npx tsc --noEmit -> show output
3. RUN lint: npx biome check -> show output
4. VERIFY: Output shows pass, ¬assume from prior run

Forbidden Language

• "should work" -> RUN IT
• "probably passes" -> RUN IT
• "I believe this is correct" -> VERIFY IT
• "tests were passing earlier" -> RUN THEM AGAIN

Anti-Patterns

• Claiming tests pass based on memory of earlier run
• Committing without running tests first
• Trusting agent reports without fresh execution
• "It compiled, therefore it works"

Rules

• Evidence = command output ∈ current session
• ¬extrapolate from partial evidence
• If verification fails, FIX before claiming done
• This skill overrides urgency ("we need to ship" ¬excuses skipping verification)