{
  "id": "#1147",
  "pr": 1147,
  "title": "perf: add __slots__ to Marker",
  "base": "04a7600a21febca084022d88c6684f1aedf81c8a",
  "head": "76cc6298254887e17d6b39df0425a4b6c2f1714a",
  "merged": "2026-04-05",
  "after_ultra_release": false,
  "known": [
    {
      "id": "marker-pickle",
      "match": {
        "probe": "P4"
      },
      "fixed_by": 1171,
      "status": "candidate"
    }
  ],
  "targets": [
    {
      "target": "packaging.markers:Marker",
      "run_id": "bt-1147-c49b2a",
      "image": "bw-pair:e33c8d8e1355cf11",
      "usd": 0.0165,
      "harvested": 80,
      "arms": {
        "hypothesis": {
          "classes": [],
          "known": [],
          "seconds": 5.1,
          "error": null
        },
        "mutations": {
          "classes": [
            "P4|base->head load|loads|exc:builtins.AttributeError"
          ],
          "known": [
            "marker-pickle"
          ],
          "seconds": 2.1,
          "error": null
        },
        "breakwater": {
          "classes": [
            "P4|base->head load|loads|exc:builtins.AttributeError"
          ],
          "known": [
            "marker-pickle"
          ],
          "seconds": 35.5,
          "error": null
        },
        "llm-plan": {
          "classes": [
            "P4|base->head load|loads|exc:builtins.AttributeError"
          ],
          "known": [
            "marker-pickle"
          ],
          "seconds": 9.1,
          "error": null
        }
      },
      "findings": [
        {
          "signature": "P4|base->head load|loads|exc:builtins.AttributeError",
          "probe": "P4",
          "detail": "base->head load",
          "args": [
            [
              "\"b\" > \"a\""
            ]
          ],
          "base": "loads",
          "head": {
            "status": "exc",
            "exc": "builtins.AttributeError"
          },
          "found_by": [
            "seed",
            "tests",
            "mutation:unicode-digits",
            "mutation:whitespace-outer",
            "mutation:huge-number",
            "mutation:equivalents",
            "mutation:whitespace-inner",
            "mutation:separators",
            "mutation:underscores",
            "mutation:case"
          ]
        }
      ],
      "perf": null,
      "image_rescored": "bw-pair:e33c8d8e1355cf11"
    }
  ]
}