{
  "vector_id": "AGT-TV-008",
  "name": "Missing Predecessor",
  "description": "A node whose predecessor_hash references a node that does not exist in the DAG (and is not the zero hash genesis marker).",
  "category": "invalid",
  "input": {
    "missing_predecessor": "0x6c7f953c62b654ece12ae2549a1ad2024d91c2b2fea2b7394b503ebbe685a5b0",
    "node": {
      "agent_id": "0xeafbb9445228b53bdfb4caf7db85578b1fe1fd0783779112757b930c31e4bde5",
      "authority_hash": "0xd29e7a4dd00127e4aa67d996fe55a00527e5f316ffe5b3da5bacb5d08289e0da",
      "dependencies": [],
      "h33_74_commitment": null,
      "node_id": "0x62f01c7847d3615f5e6dbc4318e08e47df3497f72773ad6871b5c2c58a4a7519",
      "node_type": "ToolCall",
      "payload": {
        "action_summary": "Orphan node",
        "action_type": "tool_call.orphan",
        "input_hash": "0xf007fc8f3d4510f363e5029d08ed77f5e4f237762f9d9594b1cf3d6b805987b1",
        "metadata": {},
        "output_hash": "0x311b3bd8f126d6331e12d60519199b7140f628f6747f796c578460058d4e5eab",
        "redaction_level": "MetadataOnly"
      },
      "policy_hash": "0x6eb4a673213b5dc9e7adcca8c12559fca341959476634b38552270619ad9f0fc",
      "predecessor_hash": "0x6c7f953c62b654ece12ae2549a1ad2024d91c2b2fea2b7394b503ebbe685a5b0",
      "session_id": "0x14db2ca3051e2caac021cfd40e12a90e105603e7cc72a4888371d0f34c4de8bf",
      "timestamp": 1716000000000
    }
  },
  "expected_output": {
    "verification_status": "FAILED",
    "dag_integrity": "MISSING_PREDECESSOR",
    "hash_valid": true,
    "chain_valid": false,
    "replay_deterministic": false,
    "expected_root_hash": null
  },
  "failure_reason": "InvalidPredecessor: predecessor 0x6c7f953c62b654ece12ae2549a1ad2024d91c2b2fea2b7394b503ebbe685a5b0 not found in DAG and is not zero hash. Insert rejected: true.",
  "version": "1.0.0",
  "generated_at": "2026-05-18T00:00:00Z"
}