{
  "id": "inf_5264932b",
  "version": "1.0",
  "timestamp": "2026-06-11T14:51:28.096278+00:00",
  "source": "claude_session",
  "raw_text": "A classic two-drive rotation discipline was identified as more operationally useful than simple redundancy: after each backup run, write a sentinel timestamp file to the drive; on the next run, compare timestamps across whichever drives are mounted and prefer the staler one. This ensures one drive is always a step behind the other, so if a fresh backup is corrupted or incomplete, the previous session's data is still intact on the second drive. The rotation logic becomes a property of the backup script itself rather than a manual discipline imposed on the operator.",
  "left_keywords": [
    "rotation_discipline",
    "sentinel_timestamp",
    "staleness_preference",
    "temporal_offset",
    "corruption_resilience",
    "prior_session_preservation",
    "script_encoded_logic",
    "operator_burden_reduction",
    "redundancy_distinction",
    "recovery_window",
    "write_sequencing",
    "mount_awareness"
  ],
  "right_keywords": [
    "json_indexing",
    "keyword_clumping",
    "cooccurrence_graph",
    "autovivification",
    "filesystem_path",
    "tension_calculation",
    "index_aggregation",
    "api_output",
    "inference_storage",
    "category_path_assignment"
  ],
  "clumps": {
    "rotation_mechanics": [
      "sentinel_timestamp",
      "staleness_preference",
      "temporal_offset",
      "write_sequencing"
    ],
    "failure_recovery": [
      "corruption_resilience",
      "prior_session_preservation",
      "recovery_window"
    ],
    "design_philosophy": [
      "operator_burden_reduction",
      "redundancy_distinction",
      "script_encoded_logic"
    ],
    "runtime_context": [
      "mount_awareness",
      "rotation_discipline"
    ]
  },
  "tension_score": null,
  "guardrail_actions": {},
  "domain": "claude_code_sessions",
  "category_paths": [],
  "tension": {
    "predicted": null,
    "confirmed": null,
    "calibration_delta": null
  }
}