Test Desiderata Reviewer

Analyze a project's test suite against Kent Beck's 12 test desiderata and produce a scored report with actionable top-3 improvements.

The 12 Desiderata

#	Property	What it means
1	Isolated	Tests don't affect each other — order doesn't matter, shared state is reset
2	Composable	Tests can run in any subset or combination without breaking
3	Fast	The suite runs in seconds, not minutes — fast enough to run on every save
4	Inspiring	A passing suite genuinely increases confidence that the software works
5	Writable	Adding a new test is cheap — low ceremony, good helpers, clear patterns
6	Readable	A test communicates what it's testing and why it might fail
7	Behavioral	Tests describe what the system does, not how it's implemented internally
8	Structure-insensitive	Refactoring internals doesn't break tests unless behavior changes
9	Automated	No human steps needed — tests run in CI and locally with one command
10	Specific	A failing test pinpoints the exact problem — not just "something broke"
11	Deterministic	Tests always produce the same result — no flakiness, no timing-dependent behavior