Effects are an escape hatch from React. They let you synchronize with external systems. If there is no external system involved, you shouldn't need an Effect.
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Before installing skills in Cursor, ensure your development environment meets these requirements:
node --versionreact-useeffectExecute the skills CLI command in your project's root directory to begin installation:
Fetches react-useeffect from davila7/claude-code-templates and configures it for Cursor.
The CLI shows a list of agents. Use arrow keys and space to select Cursor:
Confirm successful installation by checking the skill directory location:
Restart Cursor to activate react-useeffect. Access via /react-useeffect in your agent's command palette.
We perform automated surface-level scans (Gen AI Scanner, Socket, Snyk) during installation. These checks detect common vulnerabilities but do not guarantee complete security. Always review skill source code and verify the publisher's reputation before production use.
Skills execute code in your environment. Always review source, verify the publisher, and test in isolation before production.
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Effects are an escape hatch from React. They let you synchronize with external systems. If there is no external system involved, you shouldn't need an Effect.
| Situation | DON'T | DO |
|---|---|---|
| Derived state from props/state | useState + useEffect |
Calculate during render |
| Expensive calculations | useEffect to cache |
useMemo |
| Reset state on prop change | useEffect with setState |
key prop |
| User event responses | useEffect watching state |
Event handler directly |
| Notify parent of changes | useEffect calling onChange |
Call in event handler |
| Fetch data | useEffect without cleanup |
useEffect with cleanup OR framework |
useSyncExternalStore when possible)const fullName = firstName + ' ' + lastNameNeed to respond to something?
├── User interaction (click, submit, drag)?
│ └── Use EVENT HANDLER
├── Component appeared on screen?
│ └── Use EFFECT (external sync, analytics)
├── Props/state changed and need derived value?
│ └── CALCULATE DURING RENDER
│ └── Expensive? Use useMemo
└── Need to reset state when prop changes?
└── Use KEY PROP on component
Prerequisites
Time Estimate
15-45 minutes depending on use case complexity
Steps
Common Pitfalls
✓ Do
✗ Don't
💡 Pro Tips
✓ Use when
Use when skill capabilities match your task, clear ROI on time saved, and you can validate outputs. Best for repetitive tasks, learning, and quality improvement.
✗ Avoid when
Avoid when task requires deep expertise you can't validate, involves sensitive decisions, or when learning process is more valuable than speed of completion.
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Registry listing for react-useeffect matched our evaluation — installs cleanly and behaves as described in the markdown.
react-useeffect reduced setup friction for our internal harness; good balance of opinion and flexibility.
react-useeffect fits our agent workflows well — practical, well scoped, and easy to wire into existing repos.
Solid pick for teams standardizing on skills: react-useeffect is focused, and the summary matches what you get after install.
I recommend react-useeffect for anyone iterating fast on agent tooling; clear intent and a small, reviewable surface area.
We added react-useeffect from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.
Solid pick for teams standardizing on skills: react-useeffect is focused, and the summary matches what you get after install.
We added react-useeffect from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.
react-useeffect reduced setup friction for our internal harness; good balance of opinion and flexibility.
react-useeffect is among the better-maintained entries we tried; worth keeping pinned for repeat workflows.
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