react-frontend SKILL.md skillA
react-frontend 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/react-frontend@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/react-frontend/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260227.215f429, committed Feb 27, 2026
- Size
- 6,607 bytes
- Repository stars
- 35
- License
- MIT
React, TypeScript, and Next.js patterns for frontend development. Use when building React components, managing state, fetching data, optimizing performance, or working with Next.js App Router. Covers React 18-19, hooks, Server Components, and type-safe patterns.
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
# React Frontend
## Component TypeScript
- Extend native elements with `ComponentPropsWithoutRef<'button'>`, add custom props via intersection
- Use `React.ReactNode` for children, `React.ReactElement` for single element, render prop `(data: T) => ReactNode`
- Discriminated unions for variant props — TypeScript narrows automatically in branches
- Generic components: `<T>` with `keyof T` for column keys, `T extends { id: string }` for constraints
- Event types: `React.MouseEvent<HTMLButtonElement>`, `FormEvent<HTMLFormElement>`, `ChangeEvent<HTMLInputElement>`
- `as const` for custom hook tuple returns
- `useRef<HTMLInputElement>(null)` for DOM (use `?.`), `useRef<number>(0)` for mutable values
- Explicit `useState<User | null>(null)` for unions/null
- useReducer actions as discriminated unions: `{ type: 'set'; payload: number } | { type: 'reset' }`
- useContext null guard: throw in custom `useX()` hook if context is null
## Effects Decision Tree
Effects are escape hatches — most logic should NOT use effects.
| Need | Solution |
|------|----------|
| Derived value from props/state | Calculate during render (useMemo if expensive) |
…Read the whole file at its exact version.
How to install
mdr add iliaal/whetstone/react-frontend@sha256:ad24a6a3942e7b80The 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_oqljcflg7t6nrd5t)
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 (6607 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_oqljcflg7t6nrd5t GET https://markdownregistry.com/api/v1/resolve?ref=iliaal/whetstone/react-frontend GET https://markdownregistry.com/api/v1/blob/ad24a6a3942e7b8068b933ad48cf2a6cd7b1392d35156c0440ae08c4258600b5
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.
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