This is the documentation lab. The full reference — primitives, rule grammar, coverage matrix, and a versioned, dated changelog — lands in waves as we approach public launch. We'd rather ship a page when it's right than a stub that ages badly.
What you'll find here at launch:
- Getting started — sign up, your first rule, your first alert.
- Concepts — primitive, rule, signal token, alert lifecycle. The plain-English version, then the precise one.
- Coverage — ATP 250 / 500 / 1000 + Slams, WTA, Challenger. What's live, what's historical, what's queryable.
- Primitives reference — one page per primitive: inputs, intuition, surface caveats, worked examples.
- Rule grammar — the JSON spec, the dynamic-rule editor, examples per primitive combo.
- Changelog — what shipped, when. Dated and versioned. Lives here, not on the landing.
Have a question we should answer in the docs? Write to hello@letguru.app — your question shapes the order.