haposoft/cafekit · packages/spec/src/claude/skills/react-best-practices/SKILL.md

cf:react-best-practices skillA

cf:react-best-practices is agent-read markdown (skill) from haposoft/cafekit: React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization, or performance improvements..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add haposoft/cafekit/cf:react-best-practices@v1.0.0
Exact content
mdr add haposoft/cafekit/cf:react-best-practices@sha256:306d0b7e5ad67bbd

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_tvvwrtuq3k5uk5ek.svg)](https://markdownregistry.com/a/art_tvvwrtuq3k5uk5ek)

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Versions

versioncommittedcommitsizeaudit
v1.0.0 latest2026-09-03 f55ff96 5,510 BA view · diff
v1.0.02026-06-03 fab9b6a 5,512 BA view · diff
v1.0.02026-04-11 26ce3bb 5,312 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (5510 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

GitHub

haposoft/cafekit · 54 stars · license none · pushed 2026-09-16 · branch dev

API

GET https://markdownregistry.com/api/v1/artifacts/art_tvvwrtuq3k5uk5ek
GET https://markdownregistry.com/api/v1/resolve?ref=haposoft/cafekit/cf:react-best-practices
GET https://markdownregistry.com/api/v1/blob/306d0b7e5ad67bbdd53c3ac41e71185227b3d75a74a0b43c7842bff2d0268313

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.