{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://montrealai.github.io/proof-gradient/standards/AEP-005/schemas/tool_call_receipt.schema.json",
  "title": "AEP-005 Tool Call Receipt",
  "type": "object",
  "required": [
    "receipt_id",
    "schema",
    "schema_version",
    "decision_id",
    "request_id",
    "tool_id",
    "executed",
    "execution_status",
    "result_summary",
    "side_effects_observed",
    "evidence_refs",
    "rollback_status",
    "created_at",
    "hash"
  ],
  "properties": {
    "receipt_id": {
      "type": "string"
    },
    "schema": {
      "type": "string",
      "const": "AEP-005-TOOL-CALL-RECEIPT"
    },
    "schema_version": {
      "type": "string"
    },
    "decision_id": {
      "type": "string"
    },
    "request_id": {
      "type": "string"
    },
    "tool_id": {
      "type": "string"
    },
    "lease_id": {
      "type": "string"
    },
    "executed": {
      "type": "boolean"
    },
    "execution_status": {
      "type": "string",
      "enum": [
        "completed",
        "failed",
        "cancelled",
        "blocked",
        "partial"
      ]
    },
    "result_summary": {
      "type": "string"
    },
    "side_effects_observed": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "output_refs": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "evidence_refs": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "cost_summary": {
      "type": "object"
    },
    "latency_summary": {
      "type": "object"
    },
    "rollback_status": {
      "type": "string"
    },
    "compensation_status": {
      "type": "string"
    },
    "proof_packet_ref": {
      "type": "string"
    },
    "created_at": {
      "type": "string"
    },
    "hash": {
      "type": "string",
      "pattern": "^sha256:[a-fA-F0-9]{64}$"
    }
  }
}