looking-up-docs

Included with Lifetime

$97 forever

Look up library documentation using Context7. Use when needing API reference, library docs, framework documentation, or technical documentation lookup. Provides up-to-date, version-specific docs and code examples.

Backend & APIs

What this skill does


# Documentation Lookup with Context7

Context7 provides up-to-date, version-specific documentation and code examples directly from source libraries.

## Why Context7

- **Current APIs**: No hallucinated or outdated patterns
- **Version-specific**: Gets docs for exact library versions
- **Code examples**: Real, working code from actual documentation

## Workflow

1. **Resolve library ID**: `mcp__context7__resolve-library-id` with `libraryName`
2. **Get documentation**: `mcp__context7__get-library-docs` with `context7CompatibleLibraryID` and `topic`

## Modes

| Mode   | Use For                                    |
| ------ | ------------------------------------------ |
| `code` | API references, code examples (default)    |
| `info` | Conceptual guides, architecture, tutorials |

## Examples

```
# React hooks
resolve-library-id: "react"
get-library-docs: context7CompatibleLibraryID="/facebook/react", topic="hooks", mode="code"

# Next.js middleware
resolve-library-id: "next.js"
get-library-docs: context7CompatibleLibraryID="/vercel/next.js", topic="middleware"

# Go net/http
resolve-library-id: "go net/http"
get-library-docs: context7CompatibleLibraryID="/golang/go", topic="http server"

# Kubernetes API
resolve-library-id: "kubernetes"
get-library-docs: context7CompatibleLibraryID="/kubernetes/kubernetes", topic="deployment"
```

## Tips

- Use `topic` parameter to narrow results to specific features
- Try `mode="info"` for architectural questions
- Paginate with `page=2`, `page=3` if initial results insufficient

---

## Gotchas

- **Context7 query without version scoping returns hits across versions** — Next.js 14 question can answer with Next.js 12 code. Always include the version.
- **Library aliases (e.g., `react` vs `@types/react`) may resolve to different libraries** — use the full Context7 ID, not the npm name.
- **Stale cache**: Context7 may have indexed a library version that's been yanked from npm — check upstream before trusting.
- **Rate limits per API key per day** — bursting on the free tier locks the key out until midnight UTC.
- **No multi-version diff**: Context7 doesn't surface what changed between versions; for migrations, dual-query and compare manually.

Files: 1

Size: 2.5 KB

Complexity: 11/100

Category: Backend & APIs

Source: https://github.com/julianobarbosa/claude-code-skills/tree/main/skills/looking-up-docs

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