{
  "key": "d7-s2-both-shift-pause",
  "idea": "After both rival quotes shift in the same direction, pause asks on upward shifts and bids on downward shifts.",
  "spread": 2,
  "base_sha256": "02696ea6fd0922f64167a1153748f6a38bf2fd5d87c7a4ac6cb974bb9482f57c",
  "approach": "Append a wrapper to verified B_RC; leave the base text unchanged. On spread 2, compare both current rival quotes with the preceding callback. Any strict upward move of both quotes pauses sells; any strict downward move pauses buys. Cancel resting orders and suppress all placements including probes on that side for 1 callback(s), including the triggering callback; repeated shifts restart that side. Clear canceled-side probe and fill-inference bookkeeping. Tune 1/2/3 callbacks on 350000..350149, freeze the highest paired mean before holdout.",
  "tried": [
    {
      "setting": {
        "pause_callbacks": 1
      },
      "n": 150,
      "mean_diff": -0.0002740789306671883,
      "se": 0.085925987455826,
      "spread2": {
        "n": 32,
        "mean_diff": -0.0012847449875024453,
        "se": 0.40785651564771275,
        "sum_d": -0.04111183960007825,
        "sum_d2": 165.01621467567244,
        "comparator_mean": 100.61516294640626,
        "retail_diff": 0.26111136349062597,
        "arb_diff": -0.2623961085281249
      }
    },
    {
      "setting": {
        "pause_callbacks": 2
      },
      "n": 150,
      "mean_diff": -0.24659826915400018,
      "se": 0.11314066958782255,
      "spread2": {
        "n": 32,
        "mean_diff": -1.1559293866593758,
        "se": 0.5044781382792124,
        "sum_d": -36.98974037310003,
        "sum_d2": 295.21973436781394,
        "comparator_mean": 100.61516294640626,
        "retail_diff": -1.0124273322187463,
        "arb_diff": -0.14350205443124925
      }
    },
    {
      "setting": {
        "pause_callbacks": 3
      },
      "n": 150,
      "mean_diff": -0.6010364945633335,
      "se": 0.2991109774257889,
      "spread2": {
        "n": 32,
        "mean_diff": -2.817358568265626,
        "se": 1.3469583058778147,
        "sum_d": -90.15547418450004,
        "sum_d2": 2053.7826020207985,
        "comparator_mean": 100.61516294640626,
        "retail_diff": -1.988830443549995,
        "arb_diff": -0.8285281247187506
      }
    }
  ],
  "next": "Retain B_RC and drop this pause setting because the holdout does not establish an incremental gain.",
  "code": 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/3Lxuv24Gt7g9Ts/GosRSKhIxSzxQT2dYMif1Cv8nxnQ/wHTH9mw/+LJbavma25+g5tHTj65G3WzGcqFTmkOTz0AoPyXpKt9LIVSFvzS8sjwz7MPzqS3O5fEVaSE8/IfcUKsPoG3xlV4f0NKgPFgyYOj3U1v03PsSnDtUC4ahsWAQtYlKn6KsX0gLIJvsaIbrNO7mWPzwJf8t7qLCSHQR1UTYhmq1Qw//vbg4F92z1ciTCVqNYweDo/BMyV9kR/glPxzT+ZZ8ZCXKvINKAMfOOJC/MBBCfgwKcyBkxbCfUEU6p9DR55GxqDDGgj/Z1UVXeDw9uvVpmY3xUAoIAElk82McZSiVE2EoeqIF2Yjp/llEUxEyPv8vPH9GqznCYSw4c8b9zE0UFY5urTwNqHfMpH154BVKv7+WvGuGfwxv9rXztDDQF0VmscdI5P/9iyF9i7VPEjhYPQJMX8mgTwExHRqn9kq0lhREUBEkYtylGURqTeLCTZMRMyZjiE9LU8495ThQZtOSoo6LtSzjJBC1W3czTG7lqwm9MkOSuJpHfoEB81B4rFTWtGpKGLiPAkAQ1JUcCmbUGWlfxDwkoZ4KfRo6B+wUIE6Bq47WOlYcjyuunSt0hxevTWuP/Rt23tqvxLEaATOntFVa/0bumOrofT02dsel3VMTtOX2WBvOFfw2YbcNNzVVNX2IvePd2Kg9ZbMqk1xG0WgVuzbDiWs1izI66GY+xnToNJbv4EksTBlKprlnBw1Vborh4zmjeJ5zWE0dREPl4UKn5sEz/Fs9fUZdakEo7//XRRtFf7TuwZQhT3vNViwRc+tUjNq1pwID87ou1tIjkjvmLhBm7kkSzevCp8wO5BHNlXTmTwKQ10CAkRIAogGuUJGuc6Dr5KZziyQxQVJ7tAAT3uMvc7TZultpnYvmtFWB3fnOxI7syakwMpM8helsrcIjk1zNYl3AkWLKa+7oE/aALRQcmFPpg5jhwm0JEU41vUPxnyDF5Cbg0T4YoxIdmMOhWCWgUAFbgfkCYDMb2HMwyy3Hg8wv/DkRXhSpaDIGHLYjD+c5TUb2QWCKXFPaNjrhvP0lHJ6PC+Jz9EXc/0U/23KY2HsIwOF64HmfC6GnvCOc++lHdr+Eu9XArN147Lx5y+nOvPJ318K6ETwspQgQprMsZphqizILJRic03U3rv4/RuZEKCO+5rRfcgoEmh8XQrd8HNQ2weDRur6J1tbUHQGQxteur/0f1NnKRkIz9N5xa4Ixqy55Aaiswpg0HJXS6dI++fQjzhUGn4DQxwATdxRV+UCVD0Ts6Z1IzWo45Xmw4fJkHDvgPJGHccxg1zT27C7Vk5oJjxQzAygdQWlyqDBDFmmKRHjBNnPtZ9+/YTiYhEFJ39jVJUWDsYQcHHz95uj2Rf5nQ2igsbPMk88xqLIcZHACnpxP/iHuVfRI7dBmYQ+jXcpaYGXnGFa7b7QVwqY6AmZQT7tfmcw642sO6CSA1jpNfkVWgXZKKE/gmocM9BVAZjOToKckxSVYM4BFSTyb6FzbxWwll6vgA+DWLw7yFXgJGaouGJ1hcqnKFeUibxmuSH6HtQy6tRRuX1SThQE3PFGDyxtlN2CQJxbSKgsE5RB7lwFQ0pWLtblm3z61L53EMnWA8V9MnloSrJ5DAoMCuwhQHn/d8MtI7xp8/djLUL7GyPXAd4y7NOyaUZfQ3THm2iGXQMg6GA5AxF8/kw6l5CiT9b8GTRcFWmKh7DGTUljq5SDBMJLUtijOAY6twD8XF5btECSoy2tW6p1PxDQdoegpM/K2lpK0H95DE1VYi9M9IG3E55lbBLzfOB8ExlZjodNeXCTeJXlOG1UAZUVVgJDR2SA6u1vYDXbWr1DFtrdc6bGYsFHGA4zEPMhm73ws+pU9PuQi3ij1iW0ohfbYCD5EKHPue5mHqZZtj3HeB1aM50WaPULH2Jcy8pididDfG0mZtTNXm/OPXhdnHLh1GWK0caUTU0XYz8hLpa7dcq2TmlS0ymLUHhWoBkLkGHyt7aRSrELkEn6OJMCYKSCmjFUcCgQHCTlciAck8QyhENQovz+QoBYy2MQi9gJB3QXp0IJq0QuIBagZ0WHy8zBCw25ecAorI4T05p2W6FBINIsGx16JR8kprPro23qsbC7srKzrijSUa95qZXTQobyQ8f8Bck3Q6pp2a4CbBm8E35VSbyJS+p22smSUhdnGQMlOm7bL4EgP1UzvMXKRg1aoXVad7lu2lExnaavwlcjO0jSy7N9GMg44TeImPVyOzpWdL4PCCfL2jF625+XUdMPHvMUmBv1m7b7hANEswmxWqH6Ki36t5FFZKGWrjovrFXmRLlxGGpNEZ5Q7Gy+81wczoGIclKWzO+HTpJ+ZAoXbqICdoKCZAKoPqQLTXKH9EZREGUZAP7/lzkU8MKijRsV+Y2eGAf+jByF2hAwMfYcOyUvbQjMVeF5JHSm0DeVT3GVxfpdOZXZJGW7YlpYJgCMAj6eNydVkV4dMCiEP/9Yz1J814Wp8G2jxp0ygK+RRUhIEcQvflTA2Hun4LuVC0fEo3BwCgUVFhyloPmegURq7eIXaCc2cDzOH75ZoosmZJwAHSFjLwzGaHEaHcqWQHEu93+lCkdy9ulQxO5oGUylR4jhBuZLAl2TcOKi0xPAaOTc0PO8gO5GCUtLc8+MlZnRVrL/kpiW5aYjRbyq/zHL9GjZklpd3qNJvjt6hS06g0ahnMatwhi0GiI1/QxJAjUh68DL1ghZofBrdWKK9mBJ83moYTXV+c5cTywK8cSSoCziRO/FKHbSkfElOBZfBJT60Hs0KcVRxGenTk+zW4CUnxhqFaXZVdr6EklI3pKCSQvLh7SCY3cbpZ3E0Le70AcEovwOcf8MtKoDSEFuvCIp68QUd+difXrOAP/jANnb8SMsDAfeV7W/jVSEHMYhFlE1iuftvTMPx9qXXmjzXB7kGGa+m040wxmUQYxtGaQXIVDU5ruTpWig/E8tDIWbgZfFwoINXB6CvBYQffOBmmfzzdYmvh2iN0MqvRzE8axxqvFuH+5VHW+ijuQjm4oLzWmllMYyTqavElm5SEZkVE3FDDb18umD+BvjQuFDrTEQiOl5OJJU1myVeRLOWUuYA1JsvNJtb+GppNEYlRTCbzm+eZ7iOG9xixEEQHrvUVDLU3kZk+EVRzhHR7fkiKdOvXUR5nnyK2U8wUpppitS7KzUb7C3oZABz3Kq+Gj9fbYU0EGMyqMBksGhuKn0+M6NnYZqaaFvk5njKbpIbdrhEZreWzt4BCV3PH9vo8wLyPJE6qqc/jvGeTI7nU+NpxKj28yRFsL8a+OOJ/lSaP5vkT6K4CGxJH1ieCN4QeqMSw4kWJb8JS4JQjDMpgINnYstGQ1bFe+QkzibKQQ1tFIoS7WVQ8mHxLjpjCLiew+dLs9NJQEHkQOZ4o08M+j84VFglL9LhvcyNqTHLgVyOWxdMmI1K9f7oILq99jjliVBXVXAw3OrAqw6CwqBtAz11rcQtrVuoC85rqVxgsYUUfywlnkuI59PBuDpjMxVs8PW+5zKwUmWNFjUeoTgFpA/ao3yxTFFW86UODYg7vgr7xJPlGfI1eyRw0iXcvR58udhN0qjWF15GuEjsiAwixkQkCL/SOUu2NBqwgv1BGBCeBUC3f1ZzYSeoLelvZaSqBmEoTI+8RJUaGcbghZGcDxzVDdEuoXrFsGSdW9T2nbodmdJxxaWZxmVHLhzHMgLV44sUx+GXEV0Uoc6ujbM4VhyJD31iS7zoBWvTBa0ctOfm8/ihP5CN8SHiBxGqH9J3udyUrcg8nU9TYEDqhUwbdy6PgBhf8XJ1rJKFBUMjdmTTCIlsOWpNAzrp0bWkdRHU0vpV1BYpZEIvyPsjOZNeIcbT5NeC1bdPUdi0NUpA8rKROSxVAyEvcE/DgCy38PY4Yr7HmWkenJoMmshF0ee9J74sS0zYLJpHk1htryBT8iaLSIGEZpqvXq6eBtH8ni6fUAch6C4OXKbxj6XwCJc1+miwwr0mCjlTUFcU38VTDbEUH3+93179PucfozviyPqIurFSFTu2UJ38qvq9tF45yC4rmwwP3ZvL260bdma7K3CO8QKUjZuIZuVLqw8nnqeryR2drubpUBHzTYwnK9bvWlIgpbbpcRkR1vQCnK/z8ShdlLnESNXHg3SEq4G84vJWNKqI3oZDGU7tForoz4Q9jBbRkI8aCBwNqlnnI6y6tD1g3+SwaSaJVrQPUr0iwtksLVZlX/Vt00phJOdz03RyWghX9u28oecRWG9vapEos0kt+yNnigUnaQ2hja3BkvU/2awUb47EfePkaNbQ1hgd93JjvcdL2Z7Ve2NvipXpdU+H7gOxRa61icpGkgNqbOFfXsMb0kuK/GTrrOOV0Pd41p/S7OkGpWDbvCHP1k8cqE2PIVz/KCDw4/MYQWxpeuZk8Xh6L6O9Lbamuay8rbgj+jhcgqdHMIMKPAhxsErcDU7L/HvrZNQL5sace2OS1ntt+RrJgMxcgtKE/hVZ+MPTt/48nonumoycnPQNu9U2prZKIogYX4GX6AgYygofb9a3dCMievck/WvPmiLSzmt9pMhB0ycamn3c4fmb7VN0dxPIaUF88dE+ByeA7KDpHiq2TNUS41Ks7GAaocp1ivp78Mj2wZgSZg/isGNwO6xMN7tP24SmXhlV9bFnk2c3dbYSx6CNRRqReIFtn++SG6kS9R7zgc3KFib6Q1S5TbQXruzv+aIbWjdxlgsFxFHB0K2Ixn2a4Zgzk8yWao2uCI9AjNVH1RmlePs2RlUjvx/souQOQlp0rJHJwMiJ4cwafQHocizzeIAKDlU2ki5otV1KSqRsyNoUpsEeglnJ4aG0TmnZABvMY7ktEXucvd5LN5mzXIuytDrj7HYDByhK7sMxuvoetVXlPereR7oKZ16JbBOMp/HNT0CAPudgAQUBJAzvHq+XwlwnJbu4qWJM/l9okox9cgQi0oWa2CkCwUutMDmpCoTzav5CN1UZQAarEe/zY6B4wFv3oEMwTKOCZMOULoBgpI8FOpIRTigwdkzxtlfm/RDU6kp0wBekom/P/b2i1xShYqg9Z9wQQTb5W3TLLaAgXRUyDsZhZli8LgNat9LuC2MuOmhSc7FiONbpwIAYNGb/i8UIwMrwmP6uPd1l2pNOMt4UoaSlB11KGe+Np4CCiDZTaKuJey9YZhCIEppFRthMaHQYp4nE0uF20cw7WJLtzyqSiddRyHQR+kzI0exIKfInj58jqZICGL2aJni5pZTnXipDijLBboaMMByULjTguB3pgg3q8KWoeTVuz4FgGiAPA1EDPAw8yY1LWzZtdlSplmLdSbJYw5f0wtt4TKRIi2hKsZFlQ4U/+KiJmdEpjYyrrRmqrq60H9hzV5sTW9XQS1ZsM72/Lz6PgKLjyHv7a9h9INn9ybSV2l1SFzvcyvEbWVuKOIyYFlmNLYi+GM1tUlmrXEx2KSt4yTDlMH6zp2Z+SyPNZkoF1NNIJcxqxmETZzIkhgW4lpmwmX6633p3dPPZuwzaD6EjHpWrpqVPw6QFRMz9z9/IDH265yPeHt9cODRr8ACplpwbrKGWsauBWZupznsnaPVWHKulAz5qh5OH46mreKDielXOmaTj/5SW8G4lHAQjDVsIV03n4uz/O96ExraC78W4gMrwy8emr8xrAiT3YwUas0+0OsF2iiuX1kxXhSMSUrxLOnCZWdKQwgHby2hl5qiXxuSozaQbqIxhjsyShUzfjGDyv8HXoO9eb9MSY7qnq7qfrVMdGxo9rAhzkNEJOq+cIskXO+Xs+rCDss9X1PB+ABzOlTr/hfxf6Mv7xsAIgE5GSdPKL6G7UY2k+ephw6erNHO+aK/N0rCLARGONyjKONJFbE0nY1zDg+JZZa4diEYa0UPemiaOdaptRpX3FM0fUQtWjpHpsMOqMCOPdZ9lcsqfIGoNp3GU6ZdifS/3tk8QaMO6ZCq1L0DCTu1IR0kArU8SVdHXviNAwmuNQLGVpoeDTfbclPYP1DzpDqqawNA44yPlyE6TT7Fx9yZ+1uAJFzBvNhxfGnXkBmGGVvyNib74nA736JWjSLX71orKdV3uPHJoXCUGo5bi4EoCl4haB8l3yukFVuBrVdhYvhQBs9vSdBq3je29n0v6Ye8NXfRrvJrL7Qz1XkFKMtEgN3kKCSTvJuSRUtyePiDCR5UNFcSfDBE31WgVqr8SgvCZ+ewYEHEy0gKj4zA04/MRSq2UWKkSARfnj9Ccu6m83coIanpe+XJCNFkbqm7F1pAfbNzjmxDL+EbTKULv3JqXOHLkqtLd1tsLBcqU8IpjvOIpQGbAfsqvL43UjVqQi3X57sYauhhH+O37INmjvQnr6GveHimu2CHvrbsZmWEiPxhH97bdJdMYy9BaXpa+FiduCNLXUWKtW5KMBUf9AqOfxLqRELhaiWz5ys0bmiWQUxiUVx7VLV/EaX+ETJkm+Fv70bHyJ1rpZ/m9/gjrMGo46nsj+IEdyhq4j+TdeYY2MhXW/tqjJ1coYjOjrNw8yz8ofwfWROu4utTZ9ulZqzJeL4Ye/Yl53afKBuXPqqmrZXJ9ZF5/OsHGjFcS1Q+w3dpX6FcR09cuTXiE9g0BVi9y4mcr+c2QJ9wgRpw4TYDxRhzP5HNOdF2d6LypIDfLAMR1I6LIk/m5NhHUp2NqgZZAWFy84Zu+lAyJ6wyBrjjJzaOwv/9jfZWx1unQwf1aR8P5P2xWdrt28Lg2eaWGX0pYRZuw2r5ufh5WhuTVoVX6EuBmBbFFP/zp6uFZ2uHfUjns1A1PUA3P1Qz/horhEHpBf1lj+wcc9bfp+NNv4ltv/AW4UQJriPkwVl+qE+ESvDDAYpvSo7wbkr9cJ0KQw+q1RL7cK7RihJ5elisELiU/ArwORzBKHFj3/TjzE3V6qYzummsc5sevavHSeKM0btz9tJSZsXi2HSzlv2Ito6jP2GmtUJN4TtgacfKN2O7em7YNwkZsMeCGu1Dy3P2MNgIYPLq7uE0mP/knz58Fu0aOPW4aOZgS3i3IoqHISd7/tvddy+h6RYs/vpidqk/TVgzHa2cvzW4Ma2OPUrPXRDjkDZie+ICudvMlgvTlv9wlBx/Fs2H49xQePS19d1B//ZEyuctfdhSSLsBTALEudtNo9H+YD1ezAWD8ocCQzQTtnvzZaAyhn1w9u9XagjX++te/8ikDJ3KyBEbThP6yGKqMWEqRtgHgNp0OIlq+c6Ard8JXHSedTx9bAEJdZNnvA0cU/T5ZBGOdla8WceZ6LfXeszcX+6LXvvEND1crxU21p/EY1efv6oiD0zYW3fD0Rd+xmc77eA0LYSY+3Gkmt3L0evtXrfVJajrxseO71joEhp/UxI0L/CGa1g56D5oQHIChKaIPrEgiq5HSGK17/fkEl8jMwHNZHSt9ucxt1lX0bJAEUtTeaunqoMbAlh4WPSZCpZwI31Ov8UoSvwYuB1HoOp4awHXlROieen1iAS6NGkgjxmWX13OcEl/9oYPBNJVKUkkN04tYVCp8C0wrKeIZqA76sBjWukJ+LVOcDANDt3HbiFfTREzYqloIG+b6b86H1QJ4DvRH/CnOHp0FRm5noDtw12I4XY0wGoLfxsR758H/idTwEYGWGfo1w2U8Ju6NjDP3W5mJJE/m7GC4XMU3Ysfs03J5ayt9nPoDR6Lphghfqak8iVTfqKyb6k46VLIYGJRXSsVj1ons9VhkmDSTKL5jHAzzvpj0bsXrYsvJsc1h6ArKdgBW0bjsyghVIkfhGVz0D5kCVsQZsFOB+onYCqAw94CM0seXc+Si4i525oC+sjUtk4nV6narOCwG5Z0P1ZaWd9sbR5XG29do1tcOpDQd2jp/4H2l8LWziFZ5TGTC69Kg2lza6GgMJAbXobhjG+4QprmT3yWgZg5inxH4nsaZqh7OMj/Dvlnn0rapuj/F6luk3EXmqr3H/enp1F1bBg/lek02WTbwKwh4VaOH479StldazSvZYpMxVDN8o2bUNocqHRbBXlY6uHxiB8A/zzO3Cs5BbK3G6jCG9pt9/GPtIxk/LNu6D6tMHxbvJqGquckkvq4zreaILVttgfK82rYSMm9W2i32meK9mqhD2Fbl8pT+TZAa5gdlSBt4YYFmq7xguYhBYyIlx3GGn5wns38YC29H27+SA0Ax80P5B/8PlLQHVAysAAA=",
  "code_sha256": "c4ddb9f6d01535de41aa613dd999634c1ae42aaceb4f9881603913082049a3ac",
  "tuning": {
    "n": 150,
    "mean_diff": -0.0002740789306671883,
    "se": 0.085925987455826
  },
  "holdout": {
    "n": 500,
    "mean_diff": -0.07084019966880044,
    "se": 0.03362161651709752,
    "sum_d": -35.42009983440022,
    "sum_d2": 284.54723470163754,
    "comparator_mean": 95.6144379623812,
    "retail_diff": -2.797721300028755e-05,
    "arb_diff": -0.07081222245299998,
    "complete": true,
    "missing_seeds": [],
    "failures": []
  },
  "by_spread": {
    "1": {
      "n": 128,
      "mean_diff": 0.0,
      "se": 0.0,
      "sum_d": 0.0,
      "sum_d2": 0.0,
      "comparator_mean": 30.196297206798437,
      "retail_diff": 0.0,
      "arb_diff": 0.0,
      "complete": true,
      "missing_seeds": [],
      "failures": []
    },
    "2": {
      "n": 123,
      "mean_diff": -0.28796829133658713,
      "se": 0.13521283814878735,
      "sum_d": -35.42009983440022,
      "sum_d2": 284.54723470163754,
      "comparator_mean": 99.59660412313497,
      "retail_diff": -0.0001137285081312502,
      "arb_diff": -0.28785456281707306,
      "complete": true,
      "missing_seeds": [],
      "failures": []
    },
    "3": {
      "n": 131,
      "mean_diff": 0.0,
      "se": 0.0,
      "sum_d": 0.0,
      "sum_d2": 0.0,
      "comparator_mean": 105.16623395157023,
      "retail_diff": 0.0,
      "arb_diff": 0.0,
      "complete": true,
      "missing_seeds": [],
      "failures": []
    },
    "4": {
      "n": 118,
      "mean_diff": 0.0,
      "se": 0.0,
      "sum_d": 0.0,
      "sum_d2": 0.0,
      "comparator_mean": 151.8214744399924,
      "retail_diff": 0.0,
      "arb_diff": 0.0,
      "complete": true,
      "missing_seeds": [],
      "failures": []
    }
  },
  "off_target_zero": true,
  "worst_seeds": [
    {
      "seed": 460544,
      "s": 2,
      "d": -10.4291802252
    },
    {
      "seed": 460650,
      "s": 2,
      "d": -5.975825568900007
    },
    {
      "seed": 460268,
      "s": 2,
      "d": -3.511493801399979
    },
    {
      "seed": 460506,
      "s": 2,
      "d": -3.3481420444000207
    },
    {
      "seed": 460478,
      "s": 2,
      "d": -2.8638937742000046
    }
  ],
  "seconds_per_simulation": {
    "candidate": 0.6963335803872717,
    "base": 0.697848911847677
  },
  "check_values": {
    "310000": 17.5126554022,
    "310001": 24.2585786274,
    "310002": 2.3903113616,
    "310003": 249.5411334743
  },
  "python_version": "3.13.5",
  "notes": "Unmodified pinned simulator; default config, 2000 steps; serial, no workers/sandbox; chunks <=50. Factories reloaded per seed/file. Wall seconds time engine.run only; order alternates by seed. SE is sample SD(d)/sqrt(n), all assigned seeds including off-target zeros. Target timing ratio 0.997829; <=1.15 required. Code is gzip+base64. No forbidden seeds run. Holdout never used for tuning. No promotion claimed."
}