Verify that a repository's README quickstart actually runs, and capture a real demo of the project working. Use when the user says "/proof", asks to verify a README, check that a quickstart works, prove install/usage commands run, or generate a real demo GIF/screenshot for a repo. Routes to the proof-verify and proof-demo skills.
Capture a real demo of a project running — a terminal GIF for a CLI (via vhs) or a screenshot for a web app (via Playwright), with a real text-transcript fallback. Never fabricates or AI-generates the image. Use when asked to make a demo, record the CLI, screenshot the app, or run "/proof demo".
Run a repository's README quickstart in a sandbox and report whether it actually works, correcting documentation errors but never masking real code bugs. Use when asked to verify a README, check a quickstart, prove install/usage commands run, or run "/proof verify".