MCP Server Architecture Patterns

Architectural Evolution from Monolithic to Production MCP Servers

Definition

Design patterns and lessons learned for evolving AI agent tool servers from single-file implementations to production-grade MCP servers with proper separation of concerns, error handling, and scalability.

Examples in the Wild

  • Example 1:Single-file harness to modular MCP server
  • Example 2:Tool composition patterns
  • Example 3:Error handling and retry logic
  • Example 4:Resource management in servers