Extension UI hooks and effects: when not to use `useEffect`, dependency arrays, why `JSON.stringify` deps are never the fix, cascading effects, `AbortController` cleanup. Use when an effect loops or fires every render, deps are stringified to force equality, or state lands after unmount. Rendering goes to `perf-rendering`.
Scanned 9/7/2026
Install to Claude Code
Skills Directorynpx -y skills add jiayaoqijia/cryptoskill --skill metamask-official-perf-hooks-effects --agent claude-codeInstalls into .claude/skills of the current project.
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---
name: perf-hooks-effects
description: >
Extension UI hooks and effects: when not to use `useEffect`, dependency arrays, why
`JSON.stringify` deps are never the fix, cascading effects, `AbortController` cleanup. Use
when an effect loops or fires every render, deps are stringified to force equality, or state
lands after unmount. Rendering goes to `perf-rendering`.
base: true
---
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