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.
Installation
Details
Usage
After installing, this skill will be available to your AI coding assistant.
Verify installation:
npx agent-skills-cli listSkill Instructions
name: fetch-library-docs description: 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 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
# With known library ID (faster - saves 1 API call)
bash scripts/fetch-docs.sh --library-id <id> --topic "<topic>" --content-type <types>
# With library name (auto-resolves)
bash scripts/fetch-docs.sh --library <name> --topic "<topic>" --content-type <types>
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
More by panaversity
View allFetches 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.
Browser automation using Playwright MCP. Navigate websites, fill forms, click elements, take screenshots, and extract data. Use for web browsing, form submission, web scraping, or UI testing. NOT for static content (use curl/wget).
Validates skills against production-level criteria with 9-category scoring. This skill should be used when reviewing, auditing, or improving skills to ensure quality standards. Evaluates structure, content, user interaction, documentation, domain standards, technical robustness, maintainability, zero-shot implementation, and reusability. Returns actionable validation report with scores and improvement recommendations.
This skill conducts discovery conversations to understand user intent and agree on approach before taking action. It should be used when the user explicitly calls /interview, asks for recommendations, needs brainstorming, wants to clarify, or when the request could be misunderstood. Prevents building the wrong thing by uncovering WHY behind WHAT.