done-or-not

Why this exists

AI agents routinely announce tasks are complete without verifying anything actually ran. This skill enforces a proof gate: the agent must run the real check (tests, build, typecheck, lint, a curl against the endpoint — whatever demonstrates the claim), record a tamper-evident receipt, and only then may it report done.

The gate records: the command, its exit code, and a SHA-256 of its full output. Freshness is judged by the epoch inside the receipt (not file mtime, which touch could forge). A receipt can only clear one stop — it is consumed on use.

When to use