pydantic-mcp

Instructions

Implementation Reference

• src/pydantic_mcp/tools.py:184-200 (handler)

  The handler function 'generate_json_schema' registered as an MCP tool, which resolves the target model and uses 'build_schema_report' to generate the JSON schema.

  @mcp.tool(tags={"schema", "pydantic"})
  def generate_json_schema(
      target: str,
      schema_mode: str = "validation",
      include_definitions: bool = True,
  ) -> ToolResponse:
      """Generate JSON Schema for a model or type."""
      runtime_target = resolve_target(
          target,
          registry=REGISTRY,
          settings=SERVER_SETTINGS,
      )
      return build_schema_report(
          runtime_target,
          schema_mode=schema_mode,
          include_definitions=include_definitions,
      )