Order Food

Design principle: business logic (menu.py) is kept fully independent of MCP wiring (server.py), so it can be tested in milliseconds without a running server or LLM.

Menu Design

8 items, each with a unique id, name, and price (float, for now):

ID	Name	Price
p1	Margherita Pizza	299
p2	Pepperoni Pizza	349
b1	Veggie Burger	99
b2	Chicken Burger	129
p3	Farmhouse Pizza	349
dr1	Cold Coffee	69
dr2	Mango Shake	79

Testing Strategy

Tests in test_menu.py cover:

• Menu size is within the 5–10 item range
• Every item has valid id/name/price
• All IDs are unique
• Lookup by valid ID returns the correct item
• Lookup by invalid ID returns None (not an exception)

Run with:

uv run pytest test_menu.py -v

Status

• [done] Week 1: MCP fundamentals, hello-world server, local LLM verified
• [done] Week 2: Menu data model, mock data, lookup function, tests passing
• [done] Week 3: get_menu MCP tool, tests, live LLM demo (Claude Desktop)
• Week 4: Order logic (pricing, validation)

Week 3 Demo

Verified get_menu_tool end-to-end in Claude Desktop: asked "What food can I order?" in natural language (no explicit tool mention), and the LLM correctly called get_menu_tool and returned the full 8-item menu in chat.

Also verified via MCP Inspector: tool discoverable, returns valid JSON with ( cmd - npx @modelcontextprotocol/inspector uv run server.py ) id/name/price for all 8 items.