Verification before completion

Verification Before Completion

The single most common constrained-model failure is the confident false "done." This skill is the gate every step and task must pass before you may report success.

You may NOT claim done until all of these are true and shown

1. It builds. Run the build. Paste the result.
2. Tests pass. Run the full suite (not just the new test). Paste the summary line.
3. The new behavior is actually tested. Point to the test that exercises it and was seen to fail before / pass after.
4. Plan invariants hold. Cross-check the change against TASK.json: every promised file changed, every invariant implemented, no forbidden file touched. Any unplanned edit is named and justified. (See /consistency.)
5. No silent scope change. If you did more or less than the step asked, say so explicitly.

Anti-gaming clauses

• "Tests pass" is meaningless if the implementation step edited the tests — confirm test files were untouched during implementation (the tdd-lock plugin enforces this).
• Passing tests prove the tests pass, not that the feature is correct. If the plan names edge cases or properties, they must have explicit checks.
• A merge-ready task ships an evidence pack (/evidence): build output, test summary, plan→diff mapping, and any known gaps.

If verification fails

Do not paper over it. Report the failure with the real output and either fix it (/debug for non-obvious failures) or escalate. A truthful "blocked, here's why" beats a false "done."