testing-react SKILL.md skillA
testing-react from iliaal/whetstone is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add iliaal/whetstone/testing-react@git:20260227.215f429Pins git:20260227.215f429 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- iliaal/whetstone
- Path
distillery/generated-skills/testing-react/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260227.215f429, committed Feb 27, 2026
- Size
- 4,183 bytes
- Repository stars
- 35
- License
- MIT
Writes React/TypeScript tests using Vitest and React Testing Library. Use when "write react tests", "vitest", "component test", "hook test", "RTL", "testing library", "snapshot test", or testing React components, hooks, and utilities.
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
## Test Classification | Type | Tool | Target | File pattern | |------|------|--------|-------------| | Unit | Vitest | Pure functions, utilities, services | Co-located `*.test.ts` | | Component | Vitest + RTL | React components | Co-located `*.test.tsx` | | Hook | Vitest + RTL | Custom hooks | Co-located `*.test.ts` | | E2E | Playwright | User flows, critical paths | Separate `e2e/` directory | Default to component tests for React components. Unit tests for pure functions and service classes. See [e2e-testing](references/e2e-testing.md) for Playwright patterns. ## Setup Vitest config: `environment: 'jsdom'`, `globals: true`, `setupFiles` pointing to a file that imports `@testing-library/jest-dom/vitest`. Use `@vitejs/plugin-react` and mirror path aliases from `tsconfig.json`. ## Critical Rules - **Query priority**: `getByRole` > `getByLabelText` > `getByPlaceholderText` > `getByText` > `getByTestId`. Use `data-testid` only when no accessible query works. - **Mock boundaries**: Mock API services, navigation, and external providers. Render child components and UI libraries real for integration confidence. …
Read the whole file at its exact version.
How to install
mdr add iliaal/whetstone/testing-react@sha256:050174b4c5a302a7The line at the top of this page pins the label git:20260227.215f429, 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.
[](https://markdownregistry.com/a/art_pjc3cnrjzieqspcb)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Feb 27, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4183 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
iliaal/whetstone · 35 stars · license MIT · pushed 2026-11-04 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_pjc3cnrjzieqspcb GET https://markdownregistry.com/api/v1/resolve?ref=iliaal/whetstone/testing-react GET https://markdownregistry.com/api/v1/blob/050174b4c5a302a77125ff6a493ed34ef5ad75fad78b53e4b31e3caa8aa3f3b2
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.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.