build-custom-mcp-server

# Build Custom MCP Server Create a custom MCP server that exposes domain-specific tools to AI assistants. ## When to Use - Need to expose custom functionality to Claude Code or Claude Desktop - Building specialized tools beyond what mcptools provides - Creating a domain-specific AI assistant integration - Wrapping existing APIs or services as MCP tools ## Inputs - **Required**: List of tools to expose (name, description, parameters, behavior) - **Required**: Implementation language (Node.js or R) - **Required**: Transport type (stdio or HTTP) - **Optional**: Authentication requirements - **Optional**: Docker packaging needs ## Procedure ### Step 1: Define Tool Specifications Before writing code, define each tool: ```yaml tools: - name: query_database description: Execute a read-only SQL query against the analysis database parameters: query: type: string description: SQL SELECT query to execute required: true limit: type: integer description: Maximum rows to return default: 100 returns: JSON array of result rows - name: run_analysis description: Execute a predefined statistical analysis by name parameters: analysis_name: type: string description: Name of the analysis to run enum: [descriptive, regression, survival] dataset: type: string description: Dataset identifier required: true ``` **Got:** A YAML or markdown specificat...