client-swr-dedup

SWR enables request deduplication, caching, and revalidation across component instances.

Skills
Web development
1

What it does and how to use it

A skill that teaches Claude Code to do web development tasks well. It is packaged knowledge the model uses whenever it is relevant.

Install the skill (command above).
In Claude Code, describe what you need - the skill turns on by itself when the context fits.
No commands to memorize: you talk in plain language and the skill does the rest.

Install (Claude Code)

mkdir -p .claude/skills/client-swr-dedup && curl -fsSL https://doutorai.pt/data/lib/skills__client-swr-dedup.md -o .claude/skills/client-swr-dedup/SKILL.md

Paste this command into the terminal, in your project folder, and the component installs automatically.

Content

---
title: Use SWR for Automatic Deduplication
impact: MEDIUM-HIGH
impactDescription: automatic deduplication
tags: client, swr, deduplication, data-fetching
---

## Use SWR for Automatic Deduplication

SWR enables request deduplication, caching, and revalidation across component instances.

**Incorrect (no deduplication, each instance fetches):**

```tsx
function UserList() {
  const [users, setUsers] = useState([])
  useEffect(() => {
    fetch('/api/users')
      .then(r => r.json())
      .then(setUsers)
  }, [])
}
```

**Correct (multiple instances share one request):**

```tsx
import use

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