{
  "sha": "9b51f95ef609a219e211e37b082cd2e6913190e0",
  "model": "z-ai/glm-5.2",
  "effort": "high",
  "found_per_pass": {
    "agent": 4
  },
  "findings": [
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 140,
      "end_line": 140,
      "label": "bug",
      "severity": "critical",
      "explanation": "forget(&index, &gone)` runs unconditionally, so a `dry_run=true` sweep deletes the index entries for every referenced blob it marks for age eviction even though the blob bytes are left in place.\n\n`dry_run` is documented (docs/architecture.md, operations.md) as reporting what a sweep would reclaim \"without removing anything\"; instead it orphans blobs, forcing refetches and leaving the bytes to be deleted by the next real sweep.",
      "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, bypassing the `running` `Mutex` that only `Sweeper::run` (sweep.rs:82-84) acquires.\n\nTwo concurrent sweep requests — or a sweep request racing the background tick — both walk the same total and both remove the oldest blobs, taking the store well below the ceiling, the exact over-eviction the module's \"one sweep at a time\" promise (sweep.rs:10-12) exists to prevent.",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 164,
      "end_line": 164,
      "label": "bug",
      "severity": "medium",
      "explanation": "fs::metadata` follows symlinks and returns the *target's* size, contradicting the comment on lines 160-163 which claims a link is counted at the size of the link.\n\nFor a store whose blobs are symlinked in (the \"often\" case the comment names), `held` and `bytes` are inflated by the target size, so the ceiling accounting and the reclaimed-bytes counter are both wrong; `fs::symlink_metadata` is what the comment describes.",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 84,
      "end_line": 84,
      "label": "performance",
      "severity": "low",
      "explanation": "run` is `async` but calls the fully synchronous `sweep`, which does `readdir`/`read`/`remove_file` across tens of thousands of leaf directories directly on the tokio worker thread (the route at…\n\nrun` is `async` but calls the fully synchronous `sweep`, which does `readdir`/`read`/`remove_file` across tens of thousands of leaf directories directly on the tokio worker thread (the route at admin.rs:76 does the same). A sweep the code itself says can take longer than ten seconds blocks an executor worker for that whole span, stalling every other request pinned to it; the synchronous walk belongs in `spawn_blocking`.",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    }
  ]
}