GitHub bounty eligibility, reward provenance, and claimability preflight for one public issue before coding. Checks open, transferred, or deleted state; whether it is already assigned or claimed; explicit soft locks; trusted bounty-app competition; paid, withdrawn, or unverified rewards; linked pull requests; failed-attempt crowding; and repository AI-use rules. Returns AVOID, CAUTION, or VIABLE with public evidence, newest evidence windows, and explicit truncation.