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    {"sid": "s3", "seq": 40, "kind": "answer", "tool": "run_cypher", "text": "answer: MATCH the epochMillis subgraph", "at": "2024-01-09T00:41:12.730Z", "tokens": 597},
    {"sid": "s1", "seq": 0, "kind": "system", "tool": "read_file", "text": "system: load task context (backfilled after a restart)", "at": "2024-01-07T00:00:00.000Z", "tokens": 120}
  ]
}