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Run npx skillmds@latest add rehan-ul-haq/fetch-library-docs in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Fetch Library Docs safe to use?

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Which AI agents work with Fetch Library Docs?

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Is Fetch Library Docs free to use?

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Who published Fetch Library Docs?

Rehan-Ul-Haq (@rehan-ul-haq) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Fetch Library Docs by rehan-ul-haq — Agent Skill

Name: Fetch Library Docs
Rating: 4.2 (5 reviews)
Author: Rehan-Ul-Haq

Fetch Library Docs

Fetches official documentation for external libraries and frameworks (React, Next.js, Prisma, FastAPI, Express, Tailwind, MongoDB, etc.) with 60-90% token savings via content-type filtering. Use this skill when implementing features using library APIs, debugging library-specific errors, troubleshooting configuration issues, installing or setting up frameworks, integrating third-party packages, upgrading between library versions, or looking up correct API patterns and best practices. Triggers automatically during coding work - fetch docs before writing library code to get correct patterns, not after guessing wrong.

Rehan-Ul-Haq Updated Sep 10, 2026

File contents

Library Documentation Skill

Fetches official library documentation with 60-90% token savings.

WHEN TO INVOKE (Auto-Detection)

INVOKE AUTOMATICALLY when:

Context	Detection Signal	Content Type
Implementing	About to write code using library API	`examples,api-ref`
Debugging	Error contains library name (e.g., `PrismaClientError`)	`troubleshooting`
Installing	Adding new package, `npm install`, setup task	`setup`
Integrating	Connecting libraries ("use X with Y")	`examples,setup`
Upgrading	Version migration, breaking changes	`migration`
Uncertain	First use of library feature, unsure of pattern	`examples`

DO NOT INVOKE when:

Already have sufficient knowledge from training
User pasted docs or has them open
Task is about local/private code (use codebase search)
Comparing libraries (use web search)

DECISION LOGIC

1. Identify Library

Priority: User mention → Error message → File imports → package.json → Ask user

Examples:

PrismaClientKnownRequestError → library = "prisma"
import { useState } from 'react' → library = "react"
from fastapi import FastAPI → library = "fastapi"

2. Identify Topic

Priority: User specifies → Error message → Feature being implemented → "getting started"

3. Select Content Type

Task	Content Type
Implementing code	`examples,api-ref`
Debugging error	`troubleshooting,examples`
Installing/setup	`setup`
Integrating libs	`examples,setup`
Upgrading version	`migration`
Understanding why	`concepts`
Best practices	`patterns`

EXECUTION

IMPORTANT: Always use the Python entry point (fetch-docs.py) for cross-platform compatibility.

Use python3 on Linux/macOS/WSL, python on Windows:

# With known library ID (faster - saves 1 API call)
python3 scripts/fetch-docs.py --library-id <id> --topic "<topic>" --content-type <types>

# With library name (auto-resolves)
python3 scripts/fetch-docs.py --library <name> --topic "<topic>" --content-type <types>

Windows note: Use python instead of python3 (e.g., python scripts/fetch-docs.py ...)

Quick Library IDs

Library	ID
React	`/reactjs/react.dev`
Next.js	`/vercel/next.js`
Prisma	`/prisma/docs`
Tailwind	`/tailwindlabs/tailwindcss.com`
FastAPI	`/tiangolo/fastapi`

See references/library-ids.md for complete list.

ERROR HANDLING (Quick Reference)

Error	Action
`[LIBRARY_NOT_FOUND]`	Try spelling variations
`[LIBRARY_MISMATCH]`	Use --library-id directly
`[EMPTY_RESULTS]`	Broaden topic or use `--content-type all`
`[RATE_LIMIT_ERROR]`	Check API key setup

Call Budget: Context7 allows 3 calls/question. Use --library-id to save 1 call.

See references/context7-tools.md for full error handling.

REFERENCES

Library IDs - Complete library ID list
Usage Patterns - Real-world examples
Context7 Tools - API details, error codes, setup

---name: fetch-library-docsdescription: Fetches official documentation for external libraries and frameworks (React, Next.js, Prisma, FastAPI, Express, Tailwind, MongoDB, etc.) with 60-90% token savings via content-type filtering. Use this skill when implementing features using library APIs, debugging library-specific errors, troubleshooting configuration issues, installing or setting up frameworks, integrating third-party packages, upgrading between library versions, or looking up correct API patterns and best practices. Triggers automatically during coding work - fetch docs before writing library code to get correct patterns, not after guessing wrong.---# Library Documentation SkillFetches official library documentation with 60-90% token savings.---## WHEN TO INVOKE (Auto-Detection)**INVOKE AUTOMATICALLY when:**| Context | Detection Signal | Content Type ||---------|------------------|--------------|| **Implementing** | About to write code using library API | `examples,api-ref` || **Debugging** | Error contains library name (e.g., `PrismaClientError`) | `troubleshooting` || **Installing** | Adding new package, `npm install`, setup task | `setup` || **Integrating** | Connecting libraries ("use X with Y") | `examples,setup` || **Upgrading** | Version migration, breaking changes | `migration` || **Uncertain** | First use of library feature, unsure of pattern | `examples` |**DO NOT INVOKE when:**- Already have sufficient knowledge from training- User pasted docs or has them open- Task is about local/private code (use codebase search)- Comparing libraries (use web search)---## DECISION LOGIC### 1. Identify Library```Priority: User mention → Error message → File imports → package.json → Ask user```Examples:- `PrismaClientKnownRequestError` → library = "prisma"- `import { useState } from 'react'` → library = "react"- `from fastapi import FastAPI` → library = "fastapi"### 2. Identify Topic```Priority: User specifies → Error message → Feature being implemented → "getting started"```### 3. Select Content Type| Task | Content Type ||------|--------------|| Implementing code | `examples,api-ref` || Debugging error | `troubleshooting,examples` || Installing/setup | `setup` || Integrating libs | `examples,setup` || Upgrading version | `migration` || Understanding why | `concepts` || Best practices | `patterns` |---## EXECUTION**IMPORTANT: Always use the Python entry point (`fetch-docs.py`) for cross-platform compatibility.**Use `python3` on Linux/macOS/WSL, `python` on Windows:```bash# With known library ID (faster - saves 1 API call)python3 scripts/fetch-docs.py --library-id <id> --topic "<topic>" --content-type <types># With library name (auto-resolves)python3 scripts/fetch-docs.py --library <name> --topic "<topic>" --content-type <types>```> **Windows note:** Use `python` instead of `python3` (e.g., `python scripts/fetch-docs.py ...`)### Quick Library IDs| Library | ID ||---------|----|| React | `/reactjs/react.dev` || Next.js | `/vercel/next.js` || Prisma | `/prisma/docs` || Tailwind | `/tailwindlabs/tailwindcss.com` || FastAPI | `/tiangolo/fastapi` |See [references/library-ids.md](references/library-ids.md) for complete list.---## ERROR HANDLING (Quick Reference)| Error | Action ||-------|--------|| `[LIBRARY_NOT_FOUND]` | Try spelling variations || `[LIBRARY_MISMATCH]` | Use --library-id directly || `[EMPTY_RESULTS]` | Broaden topic or use `--content-type all` || `[RATE_LIMIT_ERROR]` | Check API key setup |**Call Budget**: Context7 allows 3 calls/question. Use `--library-id` to save 1 call.See [references/context7-tools.md](references/context7-tools.md) for full error handling.---## REFERENCES- [Library IDs](references/library-ids.md) - Complete library ID list- [Usage Patterns](references/patterns.md) - Real-world examples- [Context7 Tools](references/context7-tools.md) - API details, error codes, setup

Frequently asked questions