Individual skill

verification-before-completion

Use when a task, feature, or fix is called done, complete, finished, or fixed, or before a commit, PR, or next task. Not for fact-checking: use verify-both-ways. Not for measuring: use verify-this.

.devin/skills/verification-before-completion/SKILL.md

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Last checked: Nov 4, 2026

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Repository last updated: Sep 28, 2026
License: Apache-2.0

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# Verification before completion

## Contract

| Field | Bound contract |
|---|---|
| Trigger | A done, fixed, passes, complete, or ready claim is imminent; a commit, PR, or next-task move is about to happen; or satisfaction is about to be expressed. |
| Authority | Read-only. No file, VCS, credential, paid, published, deployed, or remote mutation. Reads only what is required to classify the claim, and executes the one named proving action. |
| Side effect | Runs the narrow proving command or scenario; edits nothing; blocks the completion claim when the output contradicts it. |
| Done | Each claim carries fresh output from exactly one proving action (or the UNVERIFIED-NO-SURFACE classification when no checkable surface exists), the claim wording matches the output, and failures are reported honestly. |

## Inputs

- Fires on: Explicit invocation, or a user utterance that contains a completion claim.