{
  "sha": "9b51f95ef609a219e211e37b082cd2e6913190e0",
  "model": "minimax/minimax-m3",
  "effort": "high",
  "found_per_pass": {
    "agent": 2
  },
  "findings": [
    {
      "path": "services/proxy/src/metrics.rs",
      "start_line": 88,
      "end_line": 97,
      "label": "maintainability",
      "severity": "critical",
      "explanation": "values()` returns `[..., sweep_bytes_reclaimed, sweep_blobs_removed]` while `COUNTERS` is `[..., (\"cairn_proxy_sweep_blobs_removed_total\", ...), (\"cairn_proxy_sweep_bytes_reclaimed_total\", ...)]`;…\n\nvalues()` returns `[..., sweep_bytes_reclaimed, sweep_blobs_removed]` while `COUNTERS` is `[..., (\"cairn_proxy_sweep_blobs_removed_total\", ...), (\"cairn_proxy_sweep_bytes_reclaimed_total\", ...)]`; `render` zips them in declaration order, so the published Prometheus metrics swap names and values - `cairn_proxy_sweep_blobs_removed_total` reports bytes and `cairn_proxy_sweep_bytes_reclaimed_total` reports blob counts. The comment on the `COUNTERS` array is explicitly about preventing this class of mismatch.",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 137,
      "end_line": 140,
      "label": "bug",
      "severity": "high",
      "explanation": "gone.push(hex.to_owned())` and the subsequent `forget(&index, &gone)` run unconditionally, so a `?dry_run=true` request still deletes the index entries for every blob the sweep decides to evict -…\n\ngone.push(hex.to_owned())` and the subsequent `forget(&index, &gone)` run unconditionally, so a `?dry_run=true` request still deletes the index entries for every blob the sweep decides to evict - only the blob unlink on line 126 is gated by `!dry_run`. The contract documented in `docs/operations.md` and `docs/architecture.md` is that a dry run reports what would be reclaimed without removing anything; in practice the index is mutated, and the next request for any of those coordinates misses the cache and refetches.",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    }
  ]
}