{
      "tool_id": "art-152-mcp-task-lifecycle-validator",
      "tool_version": "1.0.0",
      "display_name": "MCP Task Lifecycle State Machine Validator",
      "mcp_name": "validate_mcp_task_lifecycle",
      "mandate_type": "compliance_mandate",
      "wave": 27,
      "gpu": false,
      "url": "https://ainumbers.co/chaingraph/art-152-mcp-task-lifecycle-validator.html",
      "description": "Validate that a long-running MCP task state transitions are legal per the new MCP specification state machine: working to input_required or terminal states (completed, failed, cancelled); input_required back to working or terminal. Flags each illegal jump. Terminal stage of the agent-authorization-lifecycle chain. Exports lifecycle attestation with execution_hash. Zero network, zero PII.",
      "input_schema_ref": "chaingraph/art-152-mcp-task-lifecycle-validator.html#manifest",
      "consumes": [
        "art-151-agent-obo-mandate-validator"
      ],
      "feeds": [],
      "status": "live",
      "conformance_fixtures": true,
      "compute_capability": "server",
      "compute_images": [{"system":"sha256-source","image_id":"sha256:4e79c3b40641330a83eb57be5d97170403a99d2473aed7aa63205b19f116334c","valid_from":"2026-07-10"},{"system":"risc0","image_id":"sha256:a1a0bc89b5b1febaeda3519f6dbade0fa5ac16beeb143c4e1b01689573567bc6","valid_from":"2026-06-28"}],
      "compute_proof": {
        "type": "ZkVmReceipt",
        "system": "risc0",
        "receiptFormat": "groth16-bn254",
        "imageId": "sha256:a1a0bc89b5b1febaeda3519f6dbade0fa5ac16beeb143c4e1b01689573567bc6",
        "seal": "HOxVpb/CJYMDRjmGCYJqnKWtY6W5rvODjh/NEWsyq8QJGDSE2qKYHnVy2NTnsgLdo5/AHheu9NCrbKghlW/d4iek4SUY24RiwjDu33hW1oFNFaP/cdcZjpLQY68U/7CKGRzLGVml5EkkGeyTvQke2zrFSvcnpa4lqAMoc3i/9ccIxIejs7EwUfj4z+vIWE61KKDyL7aShM00QpOgOgPKAQa76QaYoUe3KzZqhLc6gG4B0TotxBTl4cxDfnR7Z2USEsaTuDSKa9hk62txAOSuS3QpYrNzUlonwyQnlwrdYOgVG6Qvr8iHQ++fSJbzgQMqIfuiycnzUS+VX3LNmTOAIA==",
        "journal": {
          "chaingraph_version": "0.4.0",
          "kernel_digest": "sha256:215ed9bd2894a54272548fd48ec1f4074bc2cf5cc5d20fbf3bc99fede4245be6",
          "output": {
            "illegal_transitions": [],
            "lifecycle_valid": true,
            "transition_count": 4
          }
        }
      },
      "export_capability": [
        "json",
        "vc"
      ]
    }