{
  "sha": "9b51f95ef609a219e211e37b082cd2e6913190e0",
  "model": "openai/gpt-5.6-sol",
  "effort": "high",
  "found_per_pass": {
    "agent": 11
  },
  "findings": [
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 119,
      "end_line": 119,
      "label": "bug",
      "severity": "high",
      "explanation": "A newly committed blob has no index until after registry registration, so a concurrent sweep treats it as orphaned, deletes it, and makes the fetch fail with a missing blob",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 164,
      "end_line": 164,
      "label": "bug",
      "severity": "high",
      "explanation": "fs::metadata` follows directory symlinks, allowing the recursive sweep to traverse and delete files outside `CAIRN_BLOB_DIR`",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 232,
      "end_line": 232,
      "label": "bug",
      "severity": "high",
      "explanation": "Every `incoming` file is unlinked without distinguishing active blob or index writes, so a sweep concurrent with a fetch can make its commit fail",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/routes/admin.rs",
      "start_line": 76,
      "end_line": 76,
      "label": "bug",
      "severity": "medium",
      "explanation": "The admin route calls unlocked `sweep` directly, allowing manual requests to overlap each other and the locked background sweep, contrary to the one-at-a-time guarantee",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 84,
      "end_line": 84,
      "label": "bug",
      "severity": "medium",
      "explanation": "The synchronous recursive filesystem sweep runs directly on a Tokio worker, so a large store can block runtime capacity and stall unrelated requests",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 102,
      "end_line": 102,
      "label": "performance",
      "severity": "medium",
      "explanation": "Sorting elapsed ages ascending evicts the youngest eligible blobs first, opposite the documented oldest-first policy and reducing cache hit rate",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 126,
      "end_line": 126,
      "label": "bug",
      "severity": "medium",
      "explanation": "An unlink failure is only logged before the candidate is counted as removed, causing false reclaimed metrics and deletion of index entries for a blob still present",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 140,
      "end_line": 140,
      "label": "bug",
      "severity": "medium",
      "explanation": "forget` runs during dry runs, so `?dry_run=true` destructively removes index entries for projected eviction candidates",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/main.rs",
      "start_line": 115,
      "end_line": 115,
      "label": "performance",
      "severity": "medium",
      "explanation": "Tokio interval’s first and overdue ticks resolve immediately, so the sweeper runs at startup and can run continuously back-to-back after an overrun instead of waiting a full interval",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/metrics.rs",
      "start_line": 94,
      "end_line": 94,
      "label": "bug",
      "severity": "medium",
      "explanation": "Sweep byte and blob values are reversed relative to `COUNTERS`, so each Prometheus metric reports the other metric’s value",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    },
    {
      "path": "services/proxy/src/sweep.rs",
      "start_line": 120,
      "end_line": 120,
      "label": "bug",
      "severity": "low",
      "explanation": "Using `remaining >= max_bytes` evicts an eligible blob when the cache is already exactly at its allowed ceiling",
      "evidence": null,
      "suggested_fix": null,
      "deterministic": false
    }
  ]
}