{
  "sha": "9b51f95ef609a219e211e37b082cd2e6913190e0",
  "model": "z-ai/glm-5.3-flash",
  "effort": "high",
  "found_per_pass": {
    "agent": 10
  },
  "findings": [
    {
      "path": "services/proxy/src/config.rs",
      "start_line": 83,
      "end_line": 83,
      "label": "bug",
      "severity": "critical",
      "explanation": "Duration::from_hours` and `Duration::from_mins` (line 84) do not exist in `std::time::Duration` — std only has `from_secs`/`from_millis`/`from_micros`/`from_nanos` — so the proxy does not compile;…\n\nDuration::from_hours` and `Duration::from_mins` (line 84) do not exist in `std::time::Duration` — std only has `from_secs`/`from_millis`/`from_micros`/`from_nanos` — so the proxy does not compile; the whole sweep feature is dead on arrival. Needs `Duration::from_secs(3600)` / `Duration::from_secs(900)`.",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 232,
      "end_line": 232,
      "label": "bug",
      "severity": "high",
      "explanation": "clear_partials` unlinks every file in `incoming`, including the temp files of downloads currently in flight (`BlobWriter` creates them there, store.rs:173).\n\nThe write continues into the unlinked inode, then `commit`'s rename (store.rs:259) fails with ENOENT, so every concurrent fetch that spans a sweep fails with a 500 after downloading fully — routine with the default 15-minute sweep. It must skip files younger than `min_age` (or only remove files not owned by a live writer).",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 140,
      "end_line": 140,
      "label": "bug",
      "severity": "high",
      "explanation": "forget` runs unconditionally, so a `dry_run=true` sweep deletes the index entries of blobs it would have removed — the dry run is not side-effect free as its doc and the admin route promise…\n\nforget` runs unconditionally, so a `dry_run=true` sweep deletes the index entries of blobs it would have removed — the dry run is not side-effect free as its doc and the admin route promise (admin.rs:77-79). Next request for those coordinates misses and refetches; gate it on `!dry_run`.",
      "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": "the on-demand route calls `app.sweeper.sweep(dry_run)` directly instead of `run()`, bypassing the `running` mutex, so it can execute concurrently with the background sweep — exactly the…\n\nthe on-demand route calls `app.sweeper.sweep(dry_run)` directly instead of `run()`, bypassing the `running` mutex, so it can execute concurrently with the background sweep — exactly the two-sweeps-over-one-directory over-eviction the module doc (sweep.rs:10-12) claims the type makes impossible.",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/metrics.rs",
      "start_line": 94,
      "end_line": 94,
      "label": "bug",
      "severity": "high",
      "explanation": "values()` returns `sweep_bytes_reclaimed` before `sweep_blobs_removed`, while `COUNTERS` (lines 51-57) lists blobs before bytes, so `render()` publishes the blob count under…\n\nvalues()` returns `sweep_bytes_reclaimed` before `sweep_blobs_removed`, while `COUNTERS` (lines 51-57) lists blobs before bytes, so `render()` publishes the blob count under `cairn_proxy_sweep_bytes_reclaimed_total` and vice versa — the very mispairing the comment at line 30-32 says this layout prevents. operations.md:54 tells operators to alert on the bytes counter, which would actually alert on blob counts.",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 164,
      "end_line": 164,
      "label": "bug",
      "severity": "medium",
      "explanation": "the comment says a symlink is \"counted at the size of the link\", but `fs::metadata` follows links; a hardlink-style store double-counts linked blobs at full size and evicts prematurely.\n\n`fs::symlink_metadata` is what the comment describes.",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/main.rs",
      "start_line": 108,
      "end_line": 108,
      "label": "bug",
      "severity": "medium",
      "explanation": "the comment (lines 101-102) claims the first tick is one interval away, but `tokio::time::interval`'s first tick completes immediately, so a sweep runs at startup — on a pre-populated store it…\n\nthe comment (lines 101-102) claims the first tick is one interval away, but `tokio::time::interval`'s first tick completes immediately, so a sweep runs at startup — on a pre-populated store it evicts and clears `incoming` the moment the process boots, contrary to the stated intent.",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 137,
      "end_line": 137,
      "label": "bug",
      "severity": "medium",
      "explanation": "when `remove_file` fails (line 126), the blob is still counted in `removed`/`bytes` and pushed to `gone`, so `forget` deletes index entries pointing at a blob still on disk and the recorded metrics…\n\nwhen `remove_file` fails (line 126), the blob is still counted in `removed`/`bytes` and pushed to `gone`, so `forget` deletes index entries pointing at a blob still on disk and the recorded metrics claim bytes that were never reclaimed. Only count/push on a successful (or simulated) unlink.",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 90,
      "end_line": 90,
      "label": "bug",
      "severity": "medium",
      "explanation": "sweep` runs the entire synchronous `read_dir`/`unlink` walk inline on a tokio worker thread — in both the background task and the HTTP handler — blocking that worker for the whole pass (the module's…\n\nsweep` runs the entire synchronous `read_dir`/`unlink` walk inline on a tokio worker thread — in both the background task and the HTTP handler — blocking that worker for the whole pass (the module's own example is 65,000 directories). `spawn_blocking` would keep the scheduler serving requests during a long sweep.",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/config.rs",
      "start_line": 131,
      "end_line": 131,
      "label": "bug",
      "severity": "low",
      "explanation": "cache_min_age` is the only new setting with no validation, unlike its siblings `fetch_timeout` and `sweep_interval`; a `CAIRN_CACHE_MIN_AGE=0` typo silently disables the documented grace period,…\n\ncache_min_age` is the only new setting with no validation, unlike its siblings `fetch_timeout` and `sweep_interval`; a `CAIRN_CACHE_MIN_AGE=0` typo silently disables the documented grace period, letting a store over its ceiling evict blobs seconds after they were fetched.",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    }
  ]
}