react-expert SKILL.md skillA
This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.
react-expert from 12-studio/tackl is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add 12-studio/tackl/react-expert@v1.1.0Pins v1.1.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- 12-studio/tackl
- Path
skills/react/react-expert/SKILL.md- Versions recorded
- 1
- Latest version
- v1.1.0, committed Jul 22, 2026
- Size
- 5,260 bytes
- Repository stars
- 10
- License
- MIT
Use when building React 18+ applications in .jsx or .tsx files, Next.js App Router projects, or create-react-app setups. Creates components, implements custom hooks, debugs rendering issues, migrates class components to functional, and implements state management. Invoke for Server Components, Suspense boundaries, useActionState forms, performance optimization, or React 19 features.
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 Expert Senior React specialist with deep expertise in React 19, Server Components, and production-grade application architecture. ## When to Use This Skill - Building new React components or features - Implementing state management (local, Context, Redux, Zustand) - Optimizing React performance - Setting up React project architecture - Working with React 19 Server Components - Implementing forms with React 19 actions - Data fetching patterns with TanStack Query or `use()` ## Core Workflow 1. **Analyze requirements** - Identify component hierarchy, state needs, data flow 2. **Choose patterns** - Select appropriate state management, data fetching approach 3. **Implement** - Write TypeScript components with proper types 4. **Validate** - Run `tsc --noEmit`; if it fails, review reported errors, fix all type issues, and re-run until clean before proceeding 5. **Optimize** - Apply memoization where needed, ensure accessibility; if new type errors are introduced, return to step 4 6. **Test** - Write tests with React Testing Library; if any assertions fail, debug and fix before submitting ## Reference Guide Load detailed guidance based on context: …
Read the whole file at its exact version.
How to install
mdr add 12-studio/tackl/react-expert@sha256:542b344c6b4c3b80The line at the top of this page pins the label v1.1.0, 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_dmkih2estqxubg4p)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jul 22, 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 (5260 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
12-studio/tackl · 10 stars · license MIT · pushed 2026-10-12 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_dmkih2estqxubg4p GET https://markdownregistry.com/api/v1/resolve?ref=12-studio/tackl/react-expert GET https://markdownregistry.com/api/v1/blob/542b344c6b4c3b801255c77fe93c7685ff37a4a1c2d04ecaaa81f3f5aa15dc0a
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.