name: context7 description: This skill should be used when the user asks to "fetch documentation from context7", "get library docs", "resolve a library ID", "use context7 MCP tools", or mentions context7 library documentation. Provides dynamic MCP tool invocation without loading all tool definitions into context. version: 1.0.0
context7 Skill
This skill provides dynamic access to the context7 MCP server without loading all tool definitions into context.
Context Efficiency
Traditional MCP approach:
- •All 2 tools loaded at startup
- •Estimated context: 1000 tokens
This skill approach:
- •Metadata only: ~100 tokens
- •Full instructions (when used): ~5k tokens
- •Tool execution: 0 tokens (runs externally)
How This Works
Instead of loading all MCP tool definitions upfront, this skill:
- •Lists available tool names and brief descriptions
- •Decide which tool to call based on the user's request
- •Generate a JSON command to invoke the tool
- •The executor handles the actual MCP communication
Available Tools
- •
resolve-library-id: Resolves a package/product name to a Context7-compatible library ID and returns a list of matching libraries.
MUST call this function before 'get-library-docs' to obtain a valid Context7-compatible library ID UNLESS the user explicitly provides a library ID in the format '/org/project' or '/org/project/version' in their query.
Selection Process:
- •Analyze the query to understand what library/package the user is looking for
- •Return the most relevant match based on:
- •Name similarity to the query (exact matches prioritized)
- •Description relevance to the query's intent
- •Documentation coverage (prioritize libraries with higher Code Snippet counts)
- •Source reputation (consider libraries with High or Medium reputation more authoritative)
- •Benchmark Score: Quality indicator (100 is the highest score)
Response Format:
- •Return the selected library ID in a clearly marked section
- •Provide a brief explanation for why this library was chosen
- •If multiple good matches exist, acknowledge this but proceed with the most relevant one
- •If no good matches exist, clearly state this and suggest query refinements
For ambiguous queries, request clarification before proceeding with a best-guess match.
- •
get-library-docs: Fetches up-to-date documentation for a library. MUST call 'resolve-library-id' first to obtain the exact Context7-compatible library ID required to use this tool, UNLESS the user explicitly provides a library ID in the format '/org/project' or '/org/project/version' in their query.
Usage Pattern
When the user's request matches this skill's capabilities:
Step 1: Identify the right tool from the list above
Step 2: ALWAYS get tool details first to obtain correct parameter names and types:
cd $SKILL_DIR ./executor.py --describe tool_name
This loads ONLY that tool's schema, not all tools.
Step 3: Generate a tool call using the exact parameter names from Step 2:
{
"tool": "tool_name",
"arguments": {
"param1": "value1",
"param2": "value2"
}
}
Step 4: Execute via bash:
cd $SKILL_DIR ./executor.py --call 'YOUR_JSON_HERE'
IMPORTANT: Replace $SKILL_DIR with the actual discovered path of this skill directory.
Important Note
MUST use --describe before calling any tool to get the correct parameter names and types. Do not guess parameter names as this will result in errors.
Examples
Example 1: Complete workflow
User: "Use context7 to do X"
Your workflow:
- •Identify tool:
resolve-library-id - •Get tool details:
./executor.py --describe resolve-library-id - •Generate call JSON using exact parameter names from Step 2
- •Execute:
cd $SKILL_DIR
./executor.py --call '{"tool": "resolve-library-id", "arguments": {"param1": "value"}}'
Example 2: Tool details output
cd $SKILL_DIR ./executor.py --describe resolve-library-id
Returns the full schema with parameter names, types, and requirements.
Error Handling
If the executor returns an error:
- •Check the tool name is correct
- •Verify
--describewas used to get the exact parameter names - •Ensure all required arguments are provided
- •Check that parameter types match what's expected
- •Ensure the MCP server is accessible
Common error: "Invalid arguments for tool" - This usually means an incorrect parameter name was used. Always run --describe first to get the correct parameter names.
Performance Notes
Context usage comparison for this skill:
| Scenario | MCP (preload) | Skill (dynamic) |
|---|---|---|
| Idle | 1000 tokens | 100 tokens |
| Active | 1000 tokens | 5k tokens |
| Executing | 1000 tokens | 0 tokens |
Savings: ~-400% reduction in typical usage
Additional Resources
Examples
- •
examples/test_skill.py- Test script for skill validation
This skill was auto-generated from an MCP server configuration. Generator: mcp_to_skill.py