Agent skill
context7
Fetch up-to-date library documentation from Context7 API. Use when user asks "how do I use this library", "show me docs for", "library documentation", "API reference for", or needs current documentation for any code library.
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/other/other/context7-grahama1970-agent-skills
Metadata
Additional technical details for this skill
- short description
- Library documentation lookup via Context7
SKILL.md
Context7 Documentation Lookup Skill
Fetch up-to-date library documentation from Context7 API for ANY code library.
Prerequisites
CONTEXT7_API_KEYenvironment variable set (check.env)
Quick Start
# Step 1: Find the library ID
python .pi/skills/context7/context7.py search <library-name> "<your-query>"
# Step 2: Get documentation context
python .pi/skills/context7/context7.py context <library-id> "<your-query>" --tokens 5000
Commands at a Glance
| Command | Description | Example |
|---|---|---|
search |
Rank repositories by relevance to your query | python .pi/skills/context7/context7.py search arangodb "bm25 search" |
context |
Download reranked doc chunks for a specific library ID | python .pi/skills/context7/context7.py context /arangodb/arangodb "vector search" |
find |
Convenience multi-library search across common stacks | python .pi/skills/context7/context7.py find "binary search" |
These are the only supported subcommands; invoking the script without one will show Typer’s usage error. The table mirrors the exact signatures implemented in context7.py, so copy/paste examples will work as-is.
API Endpoints
1. Search for ANY Library
Find libraries by name with LLM-powered ranking. Works with ANY library on GitHub:
# Search for any library - just change the libraryName
curl -s -X GET "https://context7.com/api/v2/libs/search?libraryName=<YOUR-LIBRARY>&query=<your-query>" \
-H "Authorization: Bearer $CONTEXT7_API_KEY" | jq '.results[:3]'
# Examples for different libraries:
curl -s "https://context7.com/api/v2/libs/search?libraryName=pandas&query=dataframe+merge" ...
curl -s "https://context7.com/api/v2/libs/search?libraryName=tensorflow&query=keras+model" ...
curl -s "https://context7.com/api/v2/libs/search?libraryName=django&query=orm+query" ...
Response includes library IDs like /owner/repo that you use in the context endpoint.
2. Get Documentation Context (PRIMARY)
Retrieve LLM-reranked documentation snippets for a query:
# Get ArangoDB BM25 documentation
curl -s -X GET "https://context7.com/api/v2/context?libraryId=/arangodb/arangodb&query=bm25+search+arangosearch&tokens=5000" \
-H "Authorization: Bearer $CONTEXT7_API_KEY"
# Get Lean4 tactic documentation
curl -s -X GET "https://context7.com/api/v2/context?libraryId=/leanprover/lean4&query=simp+tactic&tokens=3000" \
-H "Authorization: Bearer $CONTEXT7_API_KEY"
# Get sentence-transformers embedding docs
curl -s -X GET "https://context7.com/api/v2/context?libraryId=/UKPLab/sentence-transformers&query=encode+embeddings+cosine&tokens=3000" \
-H "Authorization: Bearer $CONTEXT7_API_KEY"
Parameters:
libraryId: Library ID from search (e.g.,/arangodb/arangodb)query: Natural language querytokens: Max tokens to return (default ~5000)
Common Library IDs
Use python context7.py search <name> "<query>" to find ANY library's ID.
| Library | Library ID |
|---|---|
| ArangoDB | /arangodb/arangodb |
| Lean 4 | /leanprover/lean4 |
| sentence-transformers | /UKPLab/sentence-transformers |
| PyTorch | /pytorch/pytorch |
| TensorFlow | /tensorflow/tensorflow |
| Pandas | /pandas-dev/pandas |
| NumPy | /numpy/numpy |
| Django | /django/django |
| Flask | /pallets/flask |
| FastAPI | /tiangolo/fastapi |
| Next.js | /vercel/next.js |
| React | /facebook/react |
| Vue.js | /vuejs/vue |
| Svelte | /sveltejs/svelte |
| Express | /expressjs/express |
| Rust std | /rust-lang/rust |
| Go std | /golang/go |
Usage Examples
Get ArangoDB AQL syntax for vector search
CONTEXT7_API_KEY=$(grep CONTEXT7_API_KEY .env | cut -d= -f2) \
curl -s "https://context7.com/api/v2/context?libraryId=/arangodb/arangodb&query=cosine+similarity+vector+search&tokens=3000" \
-H "Authorization: Bearer $CONTEXT7_API_KEY"
Get Lean4 proof tactics
CONTEXT7_API_KEY=$(grep CONTEXT7_API_KEY .env | cut -d= -f2) \
curl -s "https://context7.com/api/v2/context?libraryId=/leanprover/lean4&query=omega+tactic+natural+numbers&tokens=3000" \
-H "Authorization: Bearer $CONTEXT7_API_KEY"
Python Usage
The CLI surface is the preferred interface. If you embed it elsewhere, import the Typer app or the helper functions directly:
from .context7 import app, _search_libs, _get_context
result = _search_libs("arangodb", "bm25 search")
docs = _get_context("/arangodb/arangodb", "bm25 arangosearch scoring")
This matches the shipped code (context7.py).
Shared Helpers
.pi/skills/dotenv_helper.pyloads.envautomatically soCONTEXT7_API_KEYis present even when skills run viauvx..pi/skills/json_utils.pycan be imported to repair JSON before forwarding it to downstream tooling if you extend the skill; the built-in CLI already prints valid JSON.
When to Use
- When you need current documentation for a library
- When official docs may have changed since training cutoff
- When implementing features using unfamiliar APIs
- To verify correct syntax for AQL, Lean4, or other DSLs
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