Real file from a public repo · synced Aug 27, 2026
no-use-effect
ALWAYS ACTIVE. Enforces a strict no-direct-useEffect rule in React and React Native code. Never write useEffect directly — use derived state, event handlers, useMemo, useSyncExternalStore, data-fetching libraries, key-based resets, or useMountEffect instead. Triggers on all React component code: writing new components, editing existing ones, reviewing code, fixing bugs, or refactoring. Also triggers when user mentions useEffect, side effects, data fetching, state sync, or component lifecycle.
Works with
Install in three steps
- 1
Download the ZIP
One file per agent, plus INSTALL.md with the exact paths below.
- 2
Claude Code: copy SKILL.md into your skills folder
.claude/skills/no-use-effect/SKILL.md # this project ~/.claude/skills/no-use-effect/SKILL.md # every project
- 3
Other agents: use the matching file
skill.mdc goes in Cursor’s .cursor/rules/. AGENTS.md works as GitHub Copilot instructions, a legacy .cursorrules, or a Codex / Gemini CLI instructions file.
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