{
  "clause": "C4",
  "name": "linked",
  "description": "child.parent === parent.id → chain() returns true.",
  "input": {
    "parent": {
      "v": "tp/0.1",
      "id": "0192b6c7-4e58-7a2d-ae9e-6c77f3e20c44",
      "ts": "2026-04-24T10:00:00Z",
      "agent": {
        "did": "did:key:z6Mkon3Necd6NkkyfoGoHxid2znGc59LU3K7mubaRcFbLfLX",
        "key_id": "agent"
      },
      "tool": {
        "did": "did:key:z6Mko9hTggMwjSTEaJaPUfE6tqcy2xvU6BnNq3e3o8qVBiyH",
        "key_id": "tool"
      },
      "call": {
        "name": "search",
        "args_hash": "sha256:0000000000000000000000000000000000000000000000000000000000000000"
      },
      "result": {
        "status": "ok",
        "response_hash": "sha256:0000000000000000000000000000000000000000000000000000000000000000"
      },
      "nonce": "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA="
    },
    "child": {
      "v": "tp/0.1",
      "id": "0192b6c7-4e58-7a2d-ae9e-6c77f3e20c99",
      "ts": "2026-04-24T10:00:00Z",
      "agent": {
        "did": "did:key:z6Mkon3Necd6NkkyfoGoHxid2znGc59LU3K7mubaRcFbLfLX",
        "key_id": "agent"
      },
      "tool": {
        "did": "did:key:z6Mko9hTggMwjSTEaJaPUfE6tqcy2xvU6BnNq3e3o8qVBiyH",
        "key_id": "tool"
      },
      "call": {
        "name": "search",
        "args_hash": "sha256:0000000000000000000000000000000000000000000000000000000000000000"
      },
      "result": {
        "status": "ok",
        "response_hash": "sha256:0000000000000000000000000000000000000000000000000000000000000000"
      },
      "nonce": "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=",
      "parent": "0192b6c7-4e58-7a2d-ae9e-6c77f3e20c44"
    },
    "agent_sk_seed": 1,
    "tool_sk_seed": 2
  },
  "expected": { "chain_ok": true }
}