{"key":"d5-s23-cancel-inward-join","idea":"After the one-callback retreat cooldown, join the rival current level if RC places nothing on that side; spreads 2 and 3.","approach":"RC plus an end-of-file subclass and a passive hook exposing exact RC qbid/qask sizes. On spreads 2/3, consume one rejoin opportunity on the callback after an exactly-one-tick retreat cooldown; only append at the current rival quote when RC emits no placement on that side (probes count). Reuse RC cash/inventory limits and sell-collateral ledger. A consecutive retreat restarts the cooldown. Selected variant: inward_only.","tried":[{"name":"inward_only","code_sha256":"1ede0a791e1562624d6a38f7922fa47f3ff147b68109b2c530bee16d44a31b47","mean_diff":0.0,"se":0.0},{"name":"always","code_sha256":"0a8115027469e1b2e77a39d865048d6cba3f2df84bfe31f9d98be64bb4050447","mean_diff":0.0,"se":0.0}],"next":"Retain RC. This literal empty-side rejoin screen did not change holdout edge. A future item could screen rejoining when only probes are present. No promotion; reserved finalist seeds remain untouched.","code":"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