{
  "lesson": "14-model-context-protocol",
  "title": "Model Context Protocol",
  "questions": [
    {
      "stage": "post",
      "question": "What three primitives does an MCP server expose?",
      "options": [
        "Functions, types, classes",
        "Tools, resources, prompts",
        "Endpoints, webhooks, queues",
        "Agents, skills, workflows"
      ],
      "correct": 1,
      "explanation": ""
    },
    {
      "stage": "post",
      "question": "What wire format does MCP use?",
      "options": [
        "GraphQL over HTTP",
        "gRPC with protobuf",
        "JSON-RPC 2.0",
        "REST with OpenAPI"
      ],
      "correct": 2,
      "explanation": ""
    },
    {
      "stage": "post",
      "question": "Which metadata field signals a tool mutates state and should require human approval?",
      "options": [
        "readonly: false",
        "mutating: true",
        "destructiveHint: true",
        "requiresAuth: true"
      ],
      "correct": 2,
      "explanation": ""
    },
    {
      "stage": "post",
      "question": "What is the 2025-06-18 transport that replaced the earlier SSE-only remote transport?",
      "options": [
        "WebTransport",
        "Streamable HTTP",
        "WebSocket-only",
        "gRPC bidi"
      ],
      "correct": 1,
      "explanation": ""
    },
    {
      "stage": "post",
      "question": "When should a tool be split into its own MCP server instead of staying inline?",
      "options": [
        "When it is called fewer than 10 times per day",
        "When it is called from two or more hosts and is read-only/cacheable",
        "When it returns more than 1KB of data",
        "Never; MCP is only for local dev"
      ],
      "correct": 1,
      "explanation": ""
    }
  ]
}