AgentSkillsCN

context7

通过 Context7 API 获取软件库、框架和组件的最新文档。在查找任何编程库或框架的文档、为特定 API 或功能寻找代码示例、验证库函数的正确用法，或获取自训练以来可能已发生变更的库 API 的最新信息时，应使用此技能。

SKILL.md
--- frontmatter
name: context7
description: Retrieve up-to-date documentation for software libraries, frameworks, and components via the Context7 API. This skill should be used when looking up documentation for any programming library or framework, finding code examples for specific APIs or features, verifying correct usage of library functions, or obtaining current information about library APIs that may have changed since training.

This skill enables retrieval of current documentation for software libraries and components by querying the Context7 API via curl. Use it instead of relying on potentially outdated training data.

Step 1: Search for the Library

To find the Context7 library ID, query the search endpoint:

bash
curl -s "https://context7.com/api/v2/libs/search?libraryName=LIBRARY_NAME&query=TOPIC" | jq '.results[0]'

Parameters:

  • •libraryName (required): The library name to search for (e.g., "react", "nextjs", "fastapi", "axios")
  • •query (required): A description of the topic for relevance ranking

Response fields:

  • •id: Library identifier for the context endpoint (e.g., /websites/react_dev_reference)
  • •title: Human-readable library name
  • •description: Brief description of the library
  • •totalSnippets: Number of documentation snippets available

Step 2: Fetch Documentation

To retrieve documentation, use the library ID from step 1:

bash
curl -s "https://context7.com/api/v2/context?libraryId=LIBRARY_ID&query=TOPIC&type=txt"

Parameters:

  • •libraryId (required): The library ID from search results
  • •query (required): The specific topic to retrieve documentation for
  • •type (optional): Response format - json (default) or txt (plain text, more readable)

Examples

React hooks documentation

bash
# Find React library ID
curl -s "https://context7.com/api/v2/libs/search?libraryName=react&query=hooks" | jq '.results[0].id'
# Returns: "/websites/react_dev_reference"

# Fetch useState documentation
curl -s "https://context7.com/api/v2/context?libraryId=/websites/react_dev_reference&query=useState&type=txt"

Next.js routing documentation

bash
# Find Next.js library ID
curl -s "https://context7.com/api/v2/libs/search?libraryName=nextjs&query=routing" | jq '.results[0].id'

# Fetch app router documentation
curl -s "https://context7.com/api/v2/context?libraryId=/vercel/next.js&query=app+router&type=txt"

FastAPI dependency injection

bash
# Find FastAPI library ID
curl -s "https://context7.com/api/v2/libs/search?libraryName=fastapi&query=dependencies" | jq '.results[0].id'

# Fetch dependency injection documentation
curl -s "https://context7.com/api/v2/context?libraryId=/fastapi/fastapi&query=dependency+injection&type=txt"

Tips

  • •Use type=txt for more readable output
  • •Use jq to filter and format JSON responses
  • •Be specific with the query parameter to improve relevance ranking
  • •If the first search result is not correct, check additional results in the array
  • •URL-encode query parameters containing spaces (use + or %20)
  • •No API key is required for basic usage (rate-limited)