React

This skill holds react.dev's rules, with code from Vercel's react-best-practices, composition-patterns and react-native-skills rules (MIT) and React Doctor's improve-react, react-doctor and performance skills (millionco, copied with a source tag), each checked against react.dev, nextjs.org or the platform docs; where a source is wrong, the official form is written with its URL. Severity everywhere is P0 to P3 as in code-review REVIEWER.md: Vercel's CRITICAL and HIGH and React Doctor's HIGH are P1, MEDIUM-HIGH and MEDIUM are P2, LOW-MEDIUM and LOW are P3, and a finding that blocks the primary task is P0. Web motion in React is in ui-animation SKILL.md; native motion is in REACT-NATIVE-MOTION.md; the owner's product UI is in app-ui SKILL.md, whose choices stand where a rule here differs.

Apply only the routes and checks for the selected job. Read a linked skill's named file from its installed folder when available, or from the linked source. Report an unavailable required reference instead of inventing it. [skill-authoring, DISTRIBUTION.md#composing-skills]