{
  "name": "a2a_multi_agent_orchestration",
  "version": 1,
  "schemaVersion": 2,
  "description": "Durable multi-agent orchestration: call several remote A2A agents in parallel with FORK_JOIN, then JOIN their results. Each branch is an independent, crash-safe AGENT — if Conductor restarts mid-flight, every in-flight agent call resumes.",
  "ownerEmail": "a2a@example.com",
  "tasks": [
    {
      "name": "fork_agents",
      "taskReferenceName": "fork",
      "type": "FORK_JOIN",
      "forkTasks": [
        [
          {
            "name": "call_flights_agent",
            "taskReferenceName": "flights",
            "type": "AGENT",
            "inputParameters": {
              "agentUrl": "${workflow.input.flightsAgentUrl}",
              "text": "Find flights for: ${workflow.input.request}"
            }
          }
        ],
        [
          {
            "name": "call_hotels_agent",
            "taskReferenceName": "hotels",
            "type": "AGENT",
            "inputParameters": {
              "agentUrl": "${workflow.input.hotelsAgentUrl}",
              "text": "Find hotels for: ${workflow.input.request}"
            }
          }
        ]
      ]
    },
    {
      "name": "join_agents",
      "taskReferenceName": "join",
      "type": "JOIN",
      "joinOn": ["flights", "hotels"]
    }
  ]
}