react-useeffect
Audit React components for unnecessary useEffect hooks. Use when reviewing code that has useEffect, useState patterns, or when asked to optimize React components. Identifies anti-patterns like derived state, chained effects, event-driven effects and suggests better alternatives (computed values, useMemo, key prop, event handlers, useSuspenseQuery).
Best use case
react-useeffect is best used when you need a repeatable AI agent workflow instead of a one-off prompt.
Audit React components for unnecessary useEffect hooks. Use when reviewing code that has useEffect, useState patterns, or when asked to optimize React components. Identifies anti-patterns like derived state, chained effects, event-driven effects and suggests better alternatives (computed values, useMemo, key prop, event handlers, useSuspenseQuery).
Teams using react-useeffect should expect a more consistent output, faster repeated execution, less prompt rewriting.
When to use this skill
- You want a reusable workflow that can be run more than once with consistent structure.
When not to use this skill
- You only need a quick one-off answer and do not need a reusable workflow.
- You cannot install or maintain the underlying files, dependencies, or repository context.
Installation
Claude Code / Cursor / Codex
Manual Installation
- Download SKILL.md from GitHub
- Place it in
.claude/skills/react-useeffect/SKILL.mdinside your project - Restart your AI agent — it will auto-discover the skill
How react-useeffect Compares
| Feature / Agent | react-useeffect | Standard Approach |
|---|---|---|
| Platform Support | Not specified | Limited / Varies |
| Context Awareness | High | Baseline |
| Installation Complexity | Unknown | N/A |
Frequently Asked Questions
What does this skill do?
Audit React components for unnecessary useEffect hooks. Use when reviewing code that has useEffect, useState patterns, or when asked to optimize React components. Identifies anti-patterns like derived state, chained effects, event-driven effects and suggests better alternatives (computed values, useMemo, key prop, event handlers, useSuspenseQuery).
Where can I find the source code?
You can find the source code on GitHub using the link provided at the top of the page.
Related Guides
SKILL.md Source
# React useEffect Best Practices Effects are escape hatches - they should primarily synchronize with external systems. Many common use cases don't actually require Effects. ## Key Recommendations **Avoid Effects for:** - Computing derived values (calculate during render instead) - Handling user interactions (use event handlers) - Managing state chains (compute state in handlers) - Responding to prop changes (use the `key` prop) **Use Effects for:** - Synchronizing with external systems (non-React widgets, browser APIs) - Subscriptions and analytics - Data fetching with proper cleanup ## The Decision Framework Ask yourself: Is this responding to a user interaction (event handler), component appearance (effect), prop/state change needing derivation (calculate during render), or prop-based reset (key prop)? This approach reduces unnecessary Effects, improving performance and maintainability. ## Additional Resources - [anti-patterns.md](./anti-patterns.md) - Common mistakes to avoid - [alternatives.md](./alternatives.md) - Better solutions for each anti-pattern
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