claim-check — patent claim structure & antecedent-basis linter

Paste a numbered claim set and get a heuristic structural review: claim dependencies, antecedent-basis gaps, single-sentence form and indefiniteness flags.

(first run ~5–10s)

claim-check is an educational heuristic linter for the structure of patent claims. It does not perform prior-art search or novelty/obviousness analysis and is not legal advice.