🚀 Live Demo: https://googlechromelabs.github.io/webmcp-tools/demos/pizza-maker/

This project demonstrates a WebMCP implementation for an interactive pizza builder. It allows an AI agent to interact directly with the pizza creation process, such as adding toppings, changing styles, and adjusting sizes by registering custom tools.

It imports the WebMCP Polyfill so that WebMCP is fully simulated in browsers that do not support it yet natively.

Unlike declarative forms, this demo uses the document.modelContext.registerTool API in script.js to expose fine-grained control over the application state to an AI agent.

document.modelContext.registerTool({
  name: 'add_topping',
  description: 'Add one or more toppings to the pizza',
  inputSchema: {
    type: 'object',
    properties: {
      topping: {
        type: 'string',
        enum: ['🍕', '🍄', '🌿', '🍍', '🫑', '🥓', '🧅', '🫒', '🌽', '🌶️'],
      },
      count: { type: 'integer', minimum: 1 },
    },
    required: ['topping'],
  },
  execute: ({ topping, count }) => {
    addTopping(topping, size, count);
    return `Added ${count} ${topping} topping(s)`;
  },
});

When an AI agent is active, it can:

• Change Size: Adjust the pizza size from Small to "Too Large".
• Set Style: Switch between Classic, Bianca, BBQ, Pesto, and Wales themes.
• Manage Layers: Add or remove sauce and cheese.
• Add/Remove Toppings: Place various emoji-based toppings on the pizza with realistic animations.
• Share: Generate a shareable URL that encodes the current pizza state.

The UI includes a specific class webmcp-supported that hides the manual controls when a WebMCP-compatible environment is detected, allowing the AI agent to take full control of the "zaMaker" experience.