TestAI

TestAI is a JS/TS framework purpose-built for testing AI behaviors: skills, MCPs, commands, and subagents. It plugs into your existing test runner so AI assertions live alongside the rest of your test suite.

Stop writing one-off harnesses for every new agent or tool. TestAI gives you a vocabulary for describing what an AI should and shouldn't do — and runs those checks the same way you'd run a unit test, with deterministic reporting and CI-ready output.