{
  "id": "#1032",
  "pr": 1032,
  "title": "perf: add __slots__ to Nodes",
  "base": "842c16cef598bf80178b3894b7039b69cca3621c",
  "head": "c39b6da9ab11f649f5497a11628f9dfc98380bb2",
  "merged": "2026-01-02",
  "after_ultra_release": false,
  "known": [],
  "targets": [
    {
      "target": "packaging.markers:Marker",
      "run_id": "bt-1032-961ae1",
      "image": "bw-pair:f8c16265598b425b",
      "usd": 0.0148,
      "harvested": 80,
      "arms": {
        "hypothesis": {
          "classes": [],
          "known": [],
          "seconds": 5.9,
          "error": null
        },
        "mutations": {
          "classes": [
            "P4|base->head load|loads|exc:builtins.AttributeError"
          ],
          "known": [],
          "seconds": 3.1,
          "error": null
        },
        "breakwater": {
          "classes": [
            "P4|base->head load|loads|exc:builtins.AttributeError"
          ],
          "known": [],
          "seconds": 25.3,
          "error": null
        },
        "llm-plan": {
          "classes": [
            "P4|base->head load|loads|exc:builtins.AttributeError"
          ],
          "known": [],
          "seconds": 5.0,
          "error": null
        }
      },
      "findings": [
        {
          "signature": "P4|base->head load|loads|exc:builtins.AttributeError",
          "probe": "P4",
          "detail": "base->head load",
          "args": [
            [
              "os_name == 'foo'"
            ]
          ],
          "base": "loads",
          "head": {
            "status": "exc",
            "exc": "builtins.AttributeError"
          },
          "found_by": [
            "seed",
            "tests",
            "mutation:whitespace-outer",
            "mutation:underscores",
            "mutation:whitespace-inner",
            "mutation:huge-number",
            "mutation:equivalents",
            "mutation:unicode-digits",
            "mutation:case"
          ]
        }
      ],
      "perf": null,
      "image_rescored": "bw-pair:f8c16265598b425b"
    }
  ]
}