Individual skill

react-best-practices

React and Next.js performance optimization guidelines from Vercel Engineering. Use 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. Do NOT use for component API architecture or composition patterns (use react-composition-patterns instead).

packages/skills-catalog/skills/(quality)/react-best-practices/SKILL.md

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Source commit 8658b6658c762b9e5efd3956ed35a51c41bdf6c3

What was checked

Matches the observed repository HEAD: Yes
Scanner rules are current: Yes
Repository scan complete: No
Skill scan complete: Yes
Observed behavior: Network or broad shell
Last checked: Nov 9, 2026

These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.

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Repository context

Repository stars (not skill ratings): 7,153
Repository last updated: Nov 10, 2026
License: NOASSERTION

Observed agent integration: codex

agent Repository topic
skills Repository topic
ai Repository topic
antigravity Repository topic
claude-code Repository topic
copilot Repository topic
cursor Repository topic
engineering Derived category
writing Derived category
data Derived category
engineering-web Derived category

Files and excerpt

File metadata and permitted, redacted excerpts come from the recorded scan. Source links are pinned to that commit.

Browse files

AGENTS.mddoc · 81,716 bytes
README.mddoc · 3,360 bytes
SKILL.mdcore · 6,436 bytes
rules/_sections.mddoc · 1,554 bytes
rules/_template.mddoc · 631 bytes
rules/advanced-event-handler-refs.mddoc · 1,483 bytes
rules/advanced-init-once.mddoc · 958 bytes
rules/advanced-use-latest.mddoc · 1,072 bytes
rules/async-api-routes.mddoc · 1,125 bytes
rules/async-defer-await.mddoc · 2,028 bytes
rules/async-dependencies.mddoc · 1,293 bytes
rules/async-parallel.mddoc · 654 bytes
rules/async-suspense-boundaries.mddoc · 2,510 bytes
rules/bundle-barrel-imports.mddoc · 2,370 bytes
rules/bundle-conditional.mddoc · 949 bytes
rules/bundle-defer-third-party.mddoc · 920 bytes
rules/bundle-dynamic-imports.mddoc · 791 bytes
rules/bundle-preload.mddoc · 1,149 bytes
rules/client-event-listeners.mddoc · 1,969 bytes
rules/client-localstorage-schema.mddoc · 1,950 bytes
rules/client-passive-event-listeners.mddoc · 1,644 bytes
rules/client-swr-dedup.mddoc · 1,159 bytes
rules/js-batch-dom-css.mddoc · 3,266 bytes
rules/js-cache-function-results.mddoc · 1,949 bytes
rules/js-cache-property-access.mddoc · 532 bytes
rules/js-cache-storage.mddoc · 1,651 bytes
rules/js-combine-iterations.mddoc · 753 bytes
rules/js-early-exit.mddoc · 1,133 bytes
rules/js-hoist-regexp.mddoc · 1,028 bytes
rules/js-index-maps.mddoc · 837 bytes
rules/js-length-check-first.mddoc · 1,747 bytes
rules/js-min-max-loop.mddoc · 2,290 bytes
rules/js-set-map-lookups.mddoc · 532 bytes
rules/js-tosorted-immutable.mddoc · 1,782 bytes
rules/rendering-activity.mddoc · 564 bytes
rules/rendering-animate-svg-wrapper.mddoc · 1,185 bytes
rules/rendering-conditional-render.mddoc · 980 bytes
rules/rendering-content-visibility.mddoc · 815 bytes
rules/rendering-hoist-jsx.mddoc · 1,039 bytes
rules/rendering-hydration-no-flicker.mddoc · 2,308 bytes
rules/rendering-hydration-suppress-warning.mddoc · 872 bytes
rules/rendering-svg-precision.mddoc · 588 bytes
rules/rendering-usetransition-loading.mddoc · 2,074 bytes
rules/rerender-defer-reads.mddoc · 973 bytes
rules/rerender-dependencies.mddoc · 824 bytes
rules/rerender-derived-state-no-effect.mddoc · 1,201 bytes
rules/rerender-derived-state.mddoc · 728 bytes
rules/rerender-functional-setstate.mddoc · 2,968 bytes
rules/rerender-lazy-state-init.mddoc · 2,016 bytes
rules/rerender-memo-with-default-value.mddoc · 1,173 bytes
rules/rerender-memo.mddoc · 1,148 bytes
rules/rerender-move-effect-to-event.mddoc · 1,268 bytes
rules/rerender-simple-expression-in-memo.mddoc · 1,018 bytes
rules/rerender-transitions.mddoc · 1,055 bytes
rules/rerender-use-ref-transient-values.mddoc · 1,742 bytes
rules/server-after-nonblocking.mddoc · 2,012 bytes
rules/server-auth-actions.mddoc · 2,649 bytes
rules/server-cache-lru.mddoc · 1,353 bytes
rules/server-cache-react.mddoc · 2,228 bytes
rules/server-dedup-props.mddoc · 2,060 bytes
rules/server-parallel-fetching.mddoc · 1,554 bytes
rules/server-serialization.mddoc · 996 bytes

No licensed excerpt is available. You can inspect the pinned source.