Skill / Vercel Labs

React Best Practices Codex Skill

Review React and Next.js code for performance pitfalls.

Docs reviewedChecked 2026-09-10Runtime not tested

What it adds

Guidance for data fetching, rendering, bundle size and related React performance decisions. It provides review context; validating a change still requires the project's own checks.

reactnextjsperformance

Get set up

Read the React Best Practices SKILL.md and keep its supporting files together.
Follow Vercel's repository installation instructions, or ask Codex's skill installer to use the original skill directory.
Confirm that the skill appears in your host's skill selector.
Ask for a focused review of a React component or Next.js page.

Read the installation source

Before you install

React or Next.js project context
Project read access; edit access if changes are requested
Node/npm tooling if using the author's skills CLI installer

Compatibility & limitations

Format-level candidate; execution unverified

Cursor: Shared skill format is supported; artifact execution is unverified.

The repository installation command covers the collection; it is not an isolated-skill command.
Guidance does not replace application-specific measurement and tests.

This listing is based on source documentation. We have not installed or runtime-tested this asset.

How it fits together

Related to Context7 as complementary library documentation, not a bundled dependency.

Context7 MCP · MCP serverRetrieve version-specific library documentation in your agent.

Sources & provenance

Reviewed 2026-09-10. Source revision: main (mutable; commit not pinned).

View recorded revision