{
  "schema_version": "agent-work-receipt/v0.1",
  "receipt_id": "openclaw:event:evt-704",
  "intent": {
    "summary": "Invoke an MCP tool and preserve the resulting A2A task and trace lineage.",
    "objective": "Demonstrate a receipt that crosses MCP, A2A, and OpenTelemetry boundaries."
  },
  "actor": {
    "type": "agent",
    "id": "openclaw-worker-3",
    "display_name": "OpenClaw worker",
    "runtime": {
      "name": "openclaw",
      "version": "fixture"
    }
  },
  "authority": {
    "mode": "policy",
    "status": "restricted",
    "scope": {
      "actions": [
        "mcp.tools/call:example.lookup"
      ],
      "resources": [
        {
          "system": "mcp",
          "type": "server",
          "id": "example-server"
        }
      ],
      "systems": [
        "mcp",
        "a2a"
      ]
    },
    "authorization_ref": {
      "system": "openclaw",
      "type": "policy",
      "id": "policy/read-only-tools/v2",
      "version": "2"
    }
  },
  "actions": [
    {
      "id": "mcp-call-1",
      "type": "mcp.tools/call",
      "summary": "Called the read-only example.lookup MCP tool.",
      "status": "completed",
      "system": "mcp",
      "tool_ref": {
        "system": "mcp",
        "type": "tool",
        "id": "example.lookup"
      },
      "output_refs": [
        {
          "system": "a2a",
          "type": "task",
          "id": "task-9901"
        }
      ],
      "started_at": "2026-07-19T17:00:00.100Z",
      "completed_at": "2026-07-19T17:00:00.450Z"
    }
  ],
  "artifacts": [
    {
      "id": "lookup-result",
      "kind": "mcp_result",
      "name": "example.lookup result",
      "role": "output",
      "ref": {
        "system": "a2a",
        "type": "artifact",
        "id": "artifact-9901",
        "uri": "urn:a2a:artifact:9901"
      },
      "media_type": "application/json",
      "digest": {
        "algorithm": "sha256",
        "value": "3333333333333333333333333333333333333333333333333333333333333333",
        "encoding": "hex"
      },
      "created_at": "2026-07-19T17:00:00.450Z"
    }
  ],
  "evidence": [
    {
      "id": "mcp-response",
      "kind": "protocol_response",
      "summary": "The MCP call returned a successful structured result.",
      "ref": {
        "system": "mcp",
        "type": "call",
        "id": "call-704"
      },
      "observed_at": "2026-07-19T17:00:00.450Z",
      "supports": [
        "action:mcp-call-1",
        "outcome"
      ]
    },
    {
      "id": "trace-span",
      "kind": "trace",
      "summary": "The OpenTelemetry span closed without error.",
      "ref": {
        "system": "opentelemetry",
        "type": "span",
        "id": "span-0123456789abcdef"
      },
      "observed_at": "2026-07-19T17:00:00.460Z"
    }
  ],
  "outcome": {
    "status": "succeeded",
    "summary": "The MCP lookup completed and its result is addressable as an A2A artifact."
  },
  "verification": {
    "status": "passed",
    "method": "Protocol response status and trace-span status check.",
    "verifier": {
      "type": "service",
      "id": "openclaw-receipt-verifier"
    },
    "checks": [
      {
        "id": "check-mcp-status",
        "name": "MCP response status",
        "status": "passed",
        "evidence_ids": [
          "mcp-response"
        ]
      },
      {
        "id": "check-trace-status",
        "name": "Trace span status",
        "status": "passed",
        "evidence_ids": [
          "trace-span"
        ]
      }
    ],
    "evidence_ids": [
      "mcp-response",
      "trace-span"
    ],
    "verified_at": "2026-07-19T17:00:00.460Z"
  },
  "cost": {
    "currency": "USD",
    "total": 0.002,
    "components": [
      {
        "category": "tool",
        "amount": 0.002,
        "description": "Fixture MCP tool cost."
      }
    ],
    "usage": [
      {
        "name": "mcp_calls",
        "quantity": 1,
        "unit": "calls",
        "cost": 0.002
      }
    ],
    "human_minutes": 0,
    "estimated": false
  },
  "lineage": {
    "run_ref": {
      "system": "openclaw",
      "type": "event",
      "id": "evt-704"
    },
    "parent_receipt_refs": [],
    "references": [
      {
        "relationship": "produced_task",
        "ref": {
          "system": "a2a",
          "type": "task",
          "id": "task-9901"
        }
      },
      {
        "relationship": "invoked_tool",
        "ref": {
          "system": "mcp",
          "type": "tool",
          "id": "example.lookup"
        }
      },
      {
        "relationship": "traced_by",
        "ref": {
          "system": "opentelemetry",
          "type": "trace",
          "id": "trace-0123456789abcdef0123456789abcdef"
        }
      }
    ],
    "trace_id": "0123456789abcdef0123456789abcdef",
    "span_id": "0123456789abcdef"
  },
  "human_interventions": [],
  "timestamps": {
    "started_at": "2026-07-19T17:00:00.100Z",
    "completed_at": "2026-07-19T17:00:00.460Z",
    "issued_at": "2026-07-19T17:00:00.470Z",
    "duration_ms": 360
  },
  "extensions": {
    "io.openclaw": {
      "gateway": "fixture"
    }
  }
}