doc-fetcher

Purpose

The doc-fetcher skill provides comprehensive capabilities for fetching library and framework documentation from multiple sources using MCP integrations. This skill helps the Documentation Researcher agent retrieve up-to-date, version-specific documentation that enables informed implementation decisions and adherence to library best practices.

This skill emphasizes:

• Latest Documentation: Always fetch current, version-specific documentation
• Multiple Sources: Leverage both context7-mcp (deep context) and fetch-mcp (web content)
• Comprehensive Coverage: Retrieve API references, examples, guides, and best practices
• Version Awareness: Track version compatibility and breaking changes
• Efficient Retrieval: Optimize MCP usage for token efficiency and accuracy

The doc-fetcher skill ensures that implementation guidance is based on authoritative, current documentation from official sources.

When to Use

This skill auto-activates when the agent describes:

• "Fetch documentation for..."
• "Retrieve API reference for..."
• "Get library documentation..."
• "Access documentation for..."
• "Find documentation about..."
• "Retrieve latest docs for..."
• "Look up documentation..."
• "Fetch API docs from..."

Provided Capabilities

1. Context7-MCP Documentation Retrieval

What it provides:

• Deep documentation retrieval with semantic search
• Version-specific API references
• Code examples from documentation
• Library-specific patterns and conventions
• Integration guidance

Context7 Workflow:

# Step 1: Resolve library name to context7 ID
library_id = invoke_mcp(
    "context7-mcp",
    tool="resolve-library-id",
    params={
        "libraryName": "fastapi"  # or "react", "django", etc.
    }
)

# Step 2: Fetch comprehensive documentation
docs = invoke_mcp(
    "context7-mcp",
    tool="get-library-docs",
    params={
        "context7CompatibleLibraryID": library_id["library_id"],  # e.g., "/tiangolo/fastapi"
        "topic": "API routing and dependency injection",  # Focus area
        "tokens": 3000  # Amount of documentation to retrieve
    }
)

# Result contains:
# - documentation: Markdown-formatted docs
# - version: Library version
# - examples: Code examples
# - metadata: Additional context