{
  "testedVersion": "0.14.1 + SQLite fix",
  "testedCommit": "9fb13bb80038eb79b239a96186ced2ccfd93eb31",
  "previousIncident": "The previous v0.14.0 investigation and retained synthetic failure evidence remain separate.",
  "archiveUnderHeldWriteLock": {
    "sqliteBusyTimeoutMs": 5000,
    "error": {
      "code": "ERR_SQLITE_ERROR",
      "sqliteCode": 5,
      "message": "database is locked"
    },
    "elapsedMs": 5199,
    "indexedBodyExistsAfterFailure": true,
    "databaseStillMarksHot": true,
    "coldBodyMatchesOriginalAfterFailure": false,
    "lockHolderExitCode": 0,
    "readFallsBackToSummary": false,
    "coldBodyBytesAfterRetry": 329,
    "originalBodyPreservedAfterRetry": true
  },
  "updateUnderHeldWriteLock": {
    "error": {
      "code": "ERR_SQLITE_ERROR",
      "sqliteCode": 5,
      "message": "database is locked"
    },
    "lockHolderExitCode": 0,
    "storedSummary": "old summary",
    "bodyChangedDespiteFailedWrite": false
  },
  "lockDiagnostics": "Controlled competing writer; Node 25.9.0; no live memory store accessed.",
  "regressionSuite": {
    "node": "v24.21.0",
    "tests": 36,
    "passed": 36,
    "failed": 0,
    "cases": [
      "SQLite contention and timeout",
      "blocked writes, archive, restore, cold GC",
      "legacy missing source and collision preservation",
      "process interruption before and after commit",
      "interruption during recovery",
      "lost commit acknowledgement and record ID",
      "concurrent writers",
      "concurrent archive/update",
      "hardlink fallback",
      "backup under concurrent writes and restore without source root"
    ],
    "rawOutputSha256": "b6ba502c6b4ba8dcd4d98653dd8bea5e40fe42a21e070cf4fe841e45b01544fa"
  },
  "legacyFailureFixtureCopy": {
    "missingIndexedBodyReported": true,
    "coldCandidatePreservedByteForByte": true,
    "note": "A relocated copy of the prior synthetic failure was inspected; original evidence was not modified."
  },
  "limitations": [
    "Historical lock holder remains UNKNOWN.",
    "Pre-existing ambiguous missing-file cases are reported without guessing or overwriting.",
    "Tests exercise process interruption, not sudden power loss or storage hardware failure.",
    "External programs that do not honor the SQLite writer lock may still modify files concurrently."
  ]
}