{
  "id": "core-01-handshake",
  "title": "Handshake: bridge sends a valid session_init",
  "category": "core",
  "version": "aicc/0.1",
  "description": "On connect, the bridge must push a session_init message with a valid envelope and manifest structure.",
  "steps": [
    {
      "expect": {
        "type": "session_init",
        "protocol": "aicc/0.1",
        "session_id": {"$kind": "uuid"},
        "tick_rate_hz": {"$gt": 0},
        "tick_mode": {"$enum": ["fixed", "event", "hybrid"]},
        "world": {"$required": ["name", "kind"]},
        "capabilities": {"$required": ["sensors", "actuators", "generators"]},
        "tools": {"$kind": "array"}
      }
    }
  ]
}