Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Testing Rules
- Test runner: Vitest (not Jest) — run with `npm test`
- Tests are colocated next to source files, not in a separate directory
- Web portal tests: `npm run test:portal` (separate Vite project)
- Never skip or disable existing tests to make new code pass
- Use `vi.fn()` for mocks, `vi.spyOn()` for spies
- Test files follow `kebab-case.test.ts` naming
- Batched execution via `scripts/run-vitest-batches.mjs` — don't modify without approval
The line at the top of this page pins the label git:20260323.143c5b5, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
GET https://markdownregistry.com/api/v1/artifacts/art_vm2qjcxbyueqqe7s
GET https://markdownregistry.com/api/v1/resolve?ref=okandemirel/strada.brain/.cursor/rules/testing.mdc
GET https://markdownregistry.com/api/v1/blob/455057b1fcd64e9e103915add49216ddab2dd633a3174eca7c4bcf6f9bba7766
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
davepoon/buildwithclaude · plugins/cc-best/skills/testing/SKILL.md · Testing strategies and methodologies including TDD, E2E testing, and multi-framework support
live-codes/livecodes · .agents/skills/livecodes/testing/SKILL.md · Write and run automated tests with Jest and Testing Library in the browser. Import code from script editor, use watch…
team-commonly/commonly · fleet-skills/testing/SKILL.md · Testing and code quality context for Jest, React Testing Library, ESLint, and test patterns. Use when writing tests or…