{
  "sha": "9b51f95ef609a219e211e37b082cd2e6913190e0",
  "model": "deepseek/deepseek-v4-flash",
  "effort": "high",
  "found_per_pass": {
    "agent": 2
  },
  "findings": [
    {
      "path": "services/proxy/src/metrics.rs",
      "start_line": 88,
      "end_line": 88,
      "label": "bug",
      "severity": "critical",
      "explanation": "COUNTERS[4]` is `cairn_proxy_sweep_blobs_removed_total` and `COUNTERS[5]` is `cairn_proxy_sweep_bytes_reclaimed_total`, but `values()[4]` loads `self.sweep_bytes_reclaimed` while `values()[5]` loads…\n\nCOUNTERS[4]` is `cairn_proxy_sweep_blobs_removed_total` and `COUNTERS[5]` is `cairn_proxy_sweep_bytes_reclaimed_total`, but `values()[4]` loads `self.sweep_bytes_reclaimed` while `values()[5]` loads `self.sweep_blobs_removed`. The `render()` method zips them positionally, so every metrics scrape would report the blob count under the \"bytes reclaimed\" metric name and the byte count under the \"blobs removed\" metric name — the two new counters are swapped.",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/admin.rs",
      "start_line": 76,
      "end_line": 76,
      "label": "bug",
      "severity": "high",
      "explanation": "the on-demand sweep route calls `app.sweeper.sweep(dry_run)` directly, which never acquires the `Sweeper::running` mutex.\n\nOnly the background path (`Sweeper::run()`) locks that mutex. Two concurrent POSTs to `/v1/admin/cache/sweep`, or one concurrent with the background sweep, therefore execute `sweep()` simultaneously, each making independent removal decisions against a filesystem state the other is mutating — directly violating the \"one sweep at a time\" invariant documented in `sweep.rs:10-12`.",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    }
  ]
}