Build an entry rule, hit Run, and see how often each condition actually fired on 1,000 real bars — entirely in your browser. No login, no server, no LLM. A condition that never fires glows red: you don't have a patient strategy, you have an untested one.
Data: Binance public REST API, fetched by your browser. Research tooling only — nothing here is investment advice. Engine logic mirrors rulelint (MIT).