What problem does it solve? It enforces a disciplined delivery workflow for pre-approved code changes, ensuring edits stay within authorized paths, are backed by regression evidence, and pass required checks without unauthorized commits or scope creep. ## Core Features & Use Cases - Envelope Validation: Blocks execution unless the request includes explicit route approval, goal, authorized paths, known facts, a single change, a proof contract, closeout, and escalation conditions. - Scoped Implementation and Verification: Makes the smallest approved change, adds behavior-local regression guards, runs targeted pytest/Vitest, typecheck, and lint commands, then audits the git diff against authorized paths. - Controlled Closeout: Runs documentation checks, never commits, stops after two failed verification runs, and returns a structured result report (FIXED-PENDING-VALIDATION, VERIFIED, ESCALATED, or FAILED). - Use Case: A coordinator approves a one-line bug fix in a specific module; this Skill applies the fix, proves the regression red then green, runs the focused test suite, audits the diff, and reports results without touching anything else. ## Quick Start Resume the case-worker session with the approved change envelope and ask it to deliver the authorized fix with its proof contract.
