{
  "key": "c5-s1-port-cancel",
  "idea": "Combine the spread-1 retreat-crossing port with retreat cancellation on spread 1.",
  "approach": "Keep the supplied retreat-crossing port unchanged; append RC's wrapper with spread 1 enabled. Tune cooldown 1/2 and both sides/asks only on spread 1; retain RC behavior on spreads 2/3. Select highest paired spread-1 tuning mean, freeze before one holdout pass. Run unmodified pinned simulator, default configuration and variance, 2000 steps, single process, chunks of at most 50 seeds. This is a screen, not a promotion.",
  "tried": [
    {
      "name": "both1",
      "code_sha256": "3de183df0348595ed962c7ce656b536ad8b0f10cad68d01f46b2a44e9f5001ce",
      "mean_diff": 3.968830277351852,
      "se": 6.477011642133156,
      "n": 54
    },
    {
      "name": "asks1",
      "code_sha256": "8b201b76098e240de06d5827c0b87638c2ae02be0fa2f0b2bc560eeed37a05b8",
      "mean_diff": 3.5436535674,
      "se": 6.47913187329969,
      "n": 54
    },
    {
      "name": "both2",
      "code_sha256": "93b172686bc4a62a68855a17def5b115654bf0d0fa0035c5d16057d406c26622",
      "mean_diff": 2.6177601252925915,
      "se": 6.535313584706248,
      "n": 54
    },
    {
      "name": "asks2",
      "code_sha256": "d715ed5e30f0517b207f9f93f3ea87ea4db41d47a14d89f48572ea2d44340c05",
      "mean_diff": 3.509634707044444,
      "se": 6.4781989013632835,
      "n": 54
    }
  ],
  "next": "Keep RC as incumbent. This screen does not authorize promotion; finalist seeds 900000..903999 were untouched. Spread-1 holdout gain does not exceed twice its standard error; do not promote from this evidence.",
  "code": 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",
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    "selected": "both1",
    "selection_metric": "highest spread-1 paired mean_diff",
    "frozen_at": "2026-11-07T00:37:39.893667+00:00",
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