{
  "sha": "9b51f95ef609a219e211e37b082cd2e6913190e0",
  "model": "openai/gpt-5.6-terra",
  "effort": "high",
  "found_per_pass": {
    "agent": 6
  },
  "findings": [
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 232,
      "end_line": 232,
      "label": "bug",
      "severity": "high",
      "explanation": "Every file in `incoming` is unlinked without determining whether its `BlobWriter` is still active; a scheduled or admin sweep can unlink an in-progress fetch’s temporary file, causing its later…\n\nEvery file in `incoming` is unlinked without determining whether its `BlobWriter` is still active; a scheduled or admin sweep can unlink an in-progress fetch’s temporary file, causing its later commit/rename to fail and the download to return an error.",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 119,
      "end_line": 119,
      "label": "bug",
      "severity": "high",
      "explanation": "The index snapshot is taken before the blob walk and is not coordinated with fetches, so a blob committed between those steps and its subsequent `store.link` is treated as unreferenced and deleted;…\n\nThe index snapshot is taken before the blob walk and is not coordinated with fetches, so a blob committed between those steps and its subsequent `store.link` is treated as unreferenced and deleted; that request then fails reopening its just-committed blob and leaves a stale index entry.",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 102,
      "end_line": 102,
      "label": "bug",
      "severity": "medium",
      "explanation": "Sorting ages ascending visits the newest eligible blobs first, despite the intended “oldest blobs” policy, so eviction discards recently cached artifacts before older ones.",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/routes/admin.rs",
      "start_line": 76,
      "end_line": 76,
      "label": "bug",
      "severity": "medium",
      "explanation": "The admin handler calls the synchronous sweep directly instead of acquiring `Sweeper::running`; simultaneous admin requests can run overlapping destructive sweeps, violating the one-sweep-at-a-time…\n\nThe admin handler calls the synchronous sweep directly instead of acquiring `Sweeper::running`; simultaneous admin requests can run overlapping destructive sweeps, violating the one-sweep-at-a-time guarantee and blocking Tokio worker threads during filesystem traversal.",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/metrics.rs",
      "start_line": 94,
      "end_line": 94,
      "label": "bug",
      "severity": "low",
      "explanation": "values()` returns reclaimed bytes in the slot named `cairn_proxy_sweep_blobs_removed_total`, while the blob count is emitted as bytes, so both new Prometheus metrics report the wrong quantities.",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/main.rs",
      "start_line": 108,
      "end_line": 108,
      "label": "bug",
      "severity": "low",
      "explanation": "tokio::time::interval` delivers its first tick immediately, not one interval later as intended, so each proxy startup immediately sweeps an existing cache rather than waiting for…\n\ntokio::time::interval` delivers its first tick immediately, not one interval later as intended, so each proxy startup immediately sweeps an existing cache rather than waiting for `CAIRN_SWEEP_INTERVAL`.",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    }
  ]
}