{
  "sha": "9b51f95ef609a219e211e37b082cd2e6913190e0",
  "model": "z-ai/glm-5.2",
  "effort": "high",
  "found_per_pass": {
    "agent": 3
  },
  "findings": [
    {
      "path": "services/proxy/src/routes/admin.rs",
      "start_line": 76,
      "end_line": 76,
      "label": "bug",
      "severity": "high",
      "explanation": "the on-demand sweep calls `app.sweeper.sweep(dry_run)` directly instead of the locking `run()`, so an admin-triggered sweep runs concurrently with the background sweep.\n\n`Sweeper::sweep` (sweep.rs:90) takes no lock while `run` (sweep.rs:82-84) holds `running`; both walks compute `held` from the same files and each independently removes down to `cache_max_bytes`, so together they reclaim roughly twice the excess — exactly the \"far below the ceiling\" case the module doc at sweep.rs:10-12 says the mutex exists to prevent.",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 230,
      "end_line": 230,
      "label": "bug",
      "severity": "medium",
      "explanation": "clear_partials` deletes every file in `incoming` with no age check and no exclusion of files being written, so a sweep that fires while a fetch is in progress `fs::remove_file`s that fetch's temp…\n\nclear_partials` deletes every file in `incoming` with no age check and no exclusion of files being written, so a sweep that fires while a fetch is in progress `fs::remove_file`s that fetch's temp file out from under its `BlobWriter`. On Unix the open fd keeps the writes alive, but `BlobWriter::commit`'s `fs::rename(&temp, &target)` (store.rs:259) then fails with `NotFound`, failing the in-flight download. The doc comment (\"a file in `incoming` is a fetch that is not coming back\") is only true for abandoned partials, not for the long-running 200 MiB fetches the cache is sized for.",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 90,
      "end_line": 90,
      "label": "performance",
      "severity": "medium",
      "explanation": "sweep` performs the full walk (`read_dir`/`metadata`/`read`/`remove_file`) synchronously and is invoked from async contexts — the background task (main.rs:116 via `run`) and the admin handler…\n\nsweep` performs the full walk (`read_dir`/`metadata`/`read`/`remove_file`) synchronously and is invoked from async contexts — the background task (main.rs:116 via `run`) and the admin handler (admin.rs:76) — without `spawn_blocking`, so a store walk over the 32 GiB ceiling blocks a tokio worker thread for the whole pass and stalls every other request sharing that thread. The module's justification (sweep.rs:14-18) argues the std calls are cheaper than `tokio::fs` scheduling, but the cost at issue is blocking the runtime, not the syscall count.\n\nNo findings.",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    }
  ]
}