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Reference

Tests

For your agentCopy this and give it to the AI you're building with.
Run `cubek skill`, read all of it and follow it exactly (no CLI: download https://cubek.dev/SKILL.md verbatim with curl; don't summarize it); when you write or run tests, follow its "Tests" section.
Run `cubek check` after every edit until it is clean.

cubek test runs *.test.ts (bun:test) beside the code; I/O primitives throw there: keep logic pure, try routes with curl on cubek dev (testing.md).