What problem does it solve? Work is often declared done based on indirect signals like successful compilation, file timestamps, or an agent's self-report, which can hide real failures. This Skill enforces direct verification against the actual artifact before any task is considered complete. ## Core Features & Use Cases - Direct Verification Discipline: Run the actual feature, read the actual value, and inspect the real diff rather than trusting derived state or cached output. - Delegation Auditing: When reviewing delegated or agent-produced work, inspect git diffs, file contents, and runtime behavior instead of trusting summaries. - Scripted Proof: Write deterministic verification scripts that re-run the same comparison, producing artifacts a reviewer can re-execute. - Use Case: After an agent claims a bug fix works, apply this Skill to run the feature end-to-end, confirm data flows from input to output, and keep the verification script output visible for review. ## Quick Start Apply the prove-it-works principle to verify my last change by running the actual feature and inspecting the real output before marking it done.