MCP and API Stack

Stack

Layer	Technology	Purpose
Server	Hono + Zod	Isomorphic HTTP API with validation
Auth	Better-Auth	TypeScript authentication
Docs	@hono/zod-openapi	Auto-generated OpenAPI documentation
AI	@hono/mcp	Model Context Protocol integration

Cloudflare Worker

The CAD API runs as a Cloudflare Worker (systems/truck/worker/):

• Hono router for API endpoints
• Static asset serving for the web GUI
• R2 bucket bindings for document storage
• Deployed to truck-cad.gedw99.workers.dev and cad.ubuntusoftware.net