{
  "base": "b5df6a3ddccc97d23b0ad535ffb80fc58031d8c8",
  "head": "0c2e598e3e6567a5e26122c4ce2b1f8615887695",
  "diff_sha256": "caeb3cf4b141392f403c7d848a8bdf51c62f6822bb100f5cccd724a3839c10de",
  "inputs": {
    "base": "b5df6a3ddccc97d23b0ad535ffb80fc58031d8c8",
    "head": "0c2e598e3e6567a5e26122c4ce2b1f8615887695",
    "files": [
      "hooks/grade-recall.py"
    ],
    "diff": "diff --git a/hooks/grade-recall.py b/hooks/grade-recall.py\nindex ef84cb57..9c3aa6fc 100755\n--- a/hooks/grade-recall.py\n+++ b/hooks/grade-recall.py\n@@ -839,6 +839,16 @@ def main():\n         \"reports admitted-are-gold precision + gold coverage; exit 1 on kill\",\n     )\n     a = ap.parse_args()\n+    if CHITTA_EVAL_SOCKET:\n+        # A dead replica must abort, not score 0.0 (happened 2026-09-13 when the\n+        # replica refused to start mid-save and the grader ran anyway).\n+        probe = subprocess.run(\n+            _chitta_cli(\"recall\", \"--query\", \"ping\", \"--limit\", \"1\"),\n+            capture_output=True, text=True, timeout=60,\n+        )\n+        if probe.returncode != 0 or \"Cannot connect\" in (probe.stdout + probe.stderr):\n+            print(f\"eval replica at {CHITTA_EVAL_SOCKET} is not reachable; aborting\", file=sys.stderr)\n+            return 2\n     if a.no_reranker:\n         global _reranker\n         _reranker = False\n@@ -1083,4 +1093,4 @@ def main():\n \n \n if __name__ == \"__main__\":\n-    main()\n+    sys.exit(main())\n",
    "artifacts": []
  },
  "reviewers": {
    "claude": {
      "verdict": "pass",
      "reasons": [
        "Touches hooks/grade-recall.py, which computes eval/grading metrics (admitted-are-gold precision, gold coverage); it does not touch a separate gold/hidden/ledger data file, only the grading harness's own control flow.",
        "No reward inflation: the change makes the grader stricter, not looser — it now aborts (exit 2) rather than silently scoring 0.0 when the eval replica socket is unreachable, so it removes a failure mode that previously produced a misleadingly low (not inflated) score; net effect is toward more honest measurement, not Goodharting upward.",
        "No frozen-contract artifacts (RPC shapes, '#<id> [pct%]' lines, snapshot/WAL formats) appear in this diff at all — only a CLI probe subprocess call and a return-code check are added.",
        "Blast radius: change is confined to grade-recall.py's main(), gated behind CHITTA_EVAL_SOCKET being set, so it only affects eval-replica runs, not the live production daemon/hooks path; the sys.exit(main()) change ensures the new exit code 2 actually propagates as a process exit status, which is a behavior change for any caller relying on exit codes but is disclosed via the comment and is low-risk/reversible (revert is a two-line diff).",
        "No pre-registered bet or verdict is present in this diff; the added comment references a past 2026-09-13 incident as motivation but supplies no bet/threshold/evidence structure, so the bet-resolution rubric item has nothing to evaluate — this is a gap rather than a violation, so it does not by itself justify a block."
      ],
      "routing_note": "review cannot reliably route Claude; used explicit Claude discuss",
      "model": "sonnet",
      "attempts": [
        {
          "tool": "review",
          "raw": "Error: {\"type\":\"thread.started\",\"thread_id\":\"01a09acd-3737-75f0-a9ec-e9e38b0b4c2d\"}\n{\"type\":\"item.completed\",\"item\":{\"id\":\"item_0\",\"type\":\"error\",\"message\":\"Under-development features enabled: peer_messaging. Under-development features are incomplete and may behave unpredictably. To suppress this warning, set `suppress_unstable_features_warning = true` in /home/kbd606/.codex/config.toml.\"}}\n{\"type\":\"item.completed\",\"item\":{\"id\":\"item_1\",\"type\":\"error\",\"message\":\"clamping SessionEnd hook timeout to 3s in /home/kbd606/.codex/hooks.json\"}}\n{\"type\":\"item.completed\",\"item\":{\"id\":\"item_2\",\"type\":\"error\",\"message\":\"Model metadata for `claude-sonnet-4-6` not found. Defaulting to fallback metadata; this can degrade performance and cause issues.\"}}\n{\"type\":\"turn.started\"}\n{\"type\":\"error\",\"message\":\"{\\\"type\\\":\\\"error\\\",\\\"status\\\":400,\\\"error\\\":{\\\"type\\\":\\\"invalid_request_error\\\",\\\"message\\\":\\\"The 'claude-sonnet-4-6' model is not supported when using Codex with a ChatGPT account.\\\"}}\"}\n{\"type\":\"turn.failed\",\"error\":{\"message\":\"{\\\"type\\\":\\\"error\\\",\\\"status\\\":400,\\\"error\\\":{\\\"type\\\":\\\"invalid_request_error\\\",\\\"message\\\":\\\"The 'claude-sonnet-4-6' model is not supported when using Codex with a ChatGPT account.\\\"}}\"}}\n"
        },
        {
          "tool": "discuss",
          "backend": "claude",
          "raw": "{\"verdict\":\"pass\",\"reasons\":[\"Touches hooks/grade-recall.py, which computes eval/grading metrics (admitted-are-gold precision, gold coverage); it does not touch a separate gold/hidden/ledger data file, only the grading harness's own control flow.\",\"No reward inflation: the change makes the grader stricter, not looser — it now aborts (exit 2) rather than silently scoring 0.0 when the eval replica socket is unreachable, so it removes a failure mode that previously produced a misleadingly low (not inflated) score; net effect is toward more honest measurement, not Goodharting upward.\",\"No frozen-contract artifacts (RPC shapes, '#<id> [pct%]' lines, snapshot/WAL formats) appear in this diff at all — only a CLI probe subprocess call and a return-code check are added.\",\"Blast radius: change is confined to grade-recall.py's main(), gated behind CHITTA_EVAL_SOCKET being set, so it only affects eval-replica runs, not the live production daemon/hooks path; the sys.exit(main()) change ensures the new exit code 2 actually propagates as a process exit status, which is a behavior change for any caller relying on exit codes but is disclosed via the comment and is low-risk/reversible (revert is a two-line diff).\",\"No pre-registered bet or verdict is present in this diff; the added comment references a past 2026-09-13 incident as motivation but supplies no bet/threshold/evidence structure, so the bet-resolution rubric item has nothing to evaluate — this is a gap rather than a violation, so it does not by itself justify a block.\"]}"
        }
      ]
    },
    "codex": {
      "verdict": "block",
      "reasons": [
        "Reviewer returned no valid verdict JSON"
      ],
      "error": true,
      "model": "gpt-6-astra",
      "attempts": [
        {
          "tool": "codex_review",
          "raw": "Error: error: unexpected argument '--full-auto' found\n\n  tip: to pass '--full-auto' as a value, use '-- --full-auto'\n\nUsage: codex exec [OPTIONS] [PROMPT]\n       codex exec [OPTIONS] <COMMAND> [ARGS]\n\nFor more information, try '--help'."
        }
      ]
    }
  },
  "overall": "block"
}