MCP Server Development Skill

Context

You are building MCP servers for LocalCowork, a desktop AI agent where the LLM calls pre-built tools via MCP — it never writes code. Each server is an independent process communicating via JSON-RPC over stdio.

The PRD (docs/PRD.md) is the product source of truth. The tool registry (docs/mcp-tool-registry.yaml) defines exact tool signatures. The pattern doc (docs/patterns/mcp-server-pattern.md) is the canonical template.

Before You Start

Read these files in order — they give you the complete picture: