mcp-protocol - MCP SDK v2 low-level protocol development guidelines
Handles low-level MCP SDK v2 tasks including custom Server handlers, transports, raw wire data parsing, and gateway forwarding.
Tags
Updated: 2026-09-24Capabilities
Typical Inputs
Typical Outputs
What this skill does
- Implement low-level Server handlers
- Define custom RPC methods
- Build custom transport implementations
- Route gateway protocol eras
- Parse raw wire schemas
- Persist fleet discovery verdicts
- Forward arbitrary RPC methods
Inputs
- MCP JSON-RPC messages
- Custom transport sockets
- Gateway HTTP requests
- Raw wire data schemas
- Persisted discovery verdicts
Outputs
- Registered server request handlers
- Custom RPC notifications
- Serialized JSON-RPC wire frames
- Routed HTTP gateway responses
- Forwarded upstream RPC results
Requirements
- @modelcontextprotocol/server package
- @modelcontextprotocol/core package
- @modelcontextprotocol/client package
- TypeScript or JavaScript runtime