{
  "sha": "9b51f95ef609a219e211e37b082cd2e6913190e0",
  "model": "moonshotai/kimi-k3",
  "effort": "high",
  "found_per_pass": {
    "agent": 7
  },
  "findings": [
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 224,
      "end_line": 224,
      "label": "bug",
      "severity": "critical",
      "explanation": "clear_partials` unconditionally unlinks every file in `incoming/`, but `BlobStore::writer` (store.rs:171) and `link` (store.rs:147) keep *in-progress* fetches and index temp writes in that same…\n\nclear_partials` unconditionally unlinks every file in `incoming/`, but `BlobStore::writer` (store.rs:171) and `link` (store.rs:147) keep *in-progress* fetches and index temp writes in that same directory — the doc claim \"a file in `incoming` is a fetch that is not coming back\" is false, so any sweep concurrent with a download (every 15 min via `spawn_sweeps`) deletes the partial out from under the writer and the fetch fails at `commit`'s rename",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/routes/admin.rs",
      "start_line": 76,
      "end_line": 76,
      "label": "bug",
      "severity": "high",
      "explanation": "reclaim` calls `app.sweeper.sweep(dry_run)` directly, bypassing the `running` mutex that only `Sweeper::run` acquires (sweep.rs:83) — the module's own one-at-a-time invariant (sweep.rs:10) is…\n\nreclaim` calls `app.sweeper.sweep(dry_run)` directly, bypassing the `running` mutex that only `Sweeper::run` acquires (sweep.rs:83) — the module's own one-at-a-time invariant (sweep.rs:10) is broken, so a concurrent manual sweep and interval sweep each compute removals from a total the other is changing and jointly delete the store far below the ceiling",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/routes/admin.rs",
      "start_line": 76,
      "end_line": 76,
      "label": "performance",
      "severity": "high",
      "explanation": "sweep(dry_run)` is fully synchronous (`fs::read_dir`/`fs::metadata`/`fs::read`/`fs::remove_file` over the entire store) yet runs directly in the async handler and in the spawned loop in main.rs:116…\n\nsweep(dry_run)` is fully synchronous (`fs::read_dir`/`fs::metadata`/`fs::read`/`fs::remove_file` over the entire store) yet runs directly in the async handler and in the spawned loop in main.rs:116 — it blocks a Tokio worker thread for the whole duration of a multi-second walk of a large store, stalling unrelated requests the worker was driving",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/metrics.rs",
      "start_line": 94,
      "end_line": 94,
      "label": "bug",
      "severity": "medium",
      "explanation": "values()` returns `sweep_bytes_reclaimed` then `sweep_blobs_removed`, but `COUNTERS` declares `cairn_proxy_sweep_blobs_removed_total` (line 51) before `cairn_proxy_sweep_bytes_reclaimed_total` (line…\n\nvalues()` returns `sweep_bytes_reclaimed` then `sweep_blobs_removed`, but `COUNTERS` declares `cairn_proxy_sweep_blobs_removed_total` (line 51) before `cairn_proxy_sweep_bytes_reclaimed_total` (line 55) — the positional zip in `render` (line 107) swaps the two, so every scrape exports the blob count under the bytes name and the byte count under the blobs name, silently breaking the `cairn_proxy_sweep_bytes_reclaimed_total` alerting docs/operations.md now prescribes",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 102,
      "end_line": 102,
      "label": "bug",
      "severity": "medium",
      "explanation": "eviction candidates are sorted by *ascending* `age` (\"oldest first\" per the comment, but ascending age is newest-first), and combined with the loop at line 119 removing while `remaining >=…\n\neviction candidates are sorted by *ascending* `age` (\"oldest first\" per the comment, but ascending age is newest-first), and combined with the loop at line 119 removing while `remaining >= max_bytes`, the sweep deletes the most recently fetched blobs first and stops before touching the actually-oldest ones — the exact opposite of the stated LRU intent",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 160,
      "end_line": 160,
      "label": "bug",
      "severity": "medium",
      "explanation": "the comment says a symlink \"is counted at the size of the link\", but line 164 uses `fs::metadata`, which follows links — a symlinked blob is counted at its target's size while line 126's…\n\nthe comment says a symlink \"is counted at the size of the link\", but line 164 uses `fs::metadata`, which follows links — a symlinked blob is counted at its target's size while line 126's `fs::remove_file` removes only the link, reclaiming no bytes, so `remaining`/`bytes` are inflated and the sweep reports and stops on numbers that do not match what was freed",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 134,
      "end_line": 134,
      "label": "bug",
      "severity": "low",
      "explanation": "remaining` is decremented and `bytes`/`removed` incremented even when the `fs::remove_file` at line 126 failed (the error is only logged at debug), so a blob that could not be deleted is treated as…\n\nremaining` is decremented and `bytes`/`removed` incremented even when the `fs::remove_file` at line 126 failed (the error is only logged at debug), so a blob that could not be deleted is treated as reclaimed — the reported totals and the stop condition diverge from what is actually on disk",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    }
  ]
}