Grade your spec before you burn a build

Paste whatever you were about to give Lovable, Bolt, Cursor or Claude Code. Twelve checks against the things that actually make generated apps go wrong. Free, no account, and nothing is sent anywhere — the grader runs in your browser.

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Why there's no AI in this

Every check here is a rule, not a judgement: does it say what not to build, is there a data model, is it under the ceiling. Rules give the same spec the same score every time. An AI grader would give you a different number on Tuesday, and you'd be right not to trust it.

It also means we can leave this open to everyone without a signup wall — there is no per-use cost to protect.