{
 "first_build_code": "0682fbe1",
 "generated_by": "the pairs replay script",
 "long_200k": {
  "B_new": 80000,
  "B_old": 150000,
  "L_new": 160000,
  "L_old": 1000000,
  "client_est_tokens_max": 325123,
  "first_build": {
   "auto_injected": 15,
   "fwd_est_tokens_max": 104123,
   "fwd_est_tokens_mean": 37325,
   "over_window_requests": 0,
   "probes": 10,
   "probes_visible": 10,
   "relayout_write_est_tokens": 3518622,
   "relayouts": 22,
   "triggers": [
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    {"C": 19, "at": "r2#1", "client_est_tokens": 190977, "fwd_est_tokens_after": 24478, "pending": false, "relayout": true, "trigger": "window"},
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    {"C": 79, "at": "x7#1", "client_est_tokens": 994177, "fwd_est_tokens_after": 94717, "pending": false, "relayout": true, "trigger": "window"},
    {"C": 79, "at": "x8#0", "client_est_tokens": 994282, "fwd_est_tokens_after": 94823, "pending": false, "relayout": true, "trigger": "window"},
    {"C": 79, "at": "x8#1", "client_est_tokens": 1073199, "fwd_est_tokens_after": 104018, "pending": false, "relayout": true, "trigger": "window"},
    {"C": 79, "at": "x9#0", "client_est_tokens": 1073304, "fwd_est_tokens_after": 104123, "pending": false, "relayout": true, "trigger": "window"},
    {"C": 83, "at": "x9#1", "client_est_tokens": 1151890, "fwd_est_tokens_after": 38674, "pending": false, "relayout": true, "trigger": "window"},
    {"C": 83, "at": "x10#0", "client_est_tokens": 1151995, "fwd_est_tokens_after": 39189, "pending": false, "relayout": true, "trigger": "window"},
    {"C": 91, "at": "x10#1", "client_est_tokens": 1287750, "fwd_est_tokens_after": 57031, "pending": false, "relayout": true, "trigger": "window"},
    {"C": 91, "at": "x11#1", "client_est_tokens": 1358013, "fwd_est_tokens_after": 67031, "pending": false, "relayout": true, "trigger": "window"},
    {"C": 91, "at": "x12#0", "client_est_tokens": 1358120, "fwd_est_tokens_after": 67961, "pending": false, "relayout": true, "trigger": "window"},
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   ]
  },
  "more_read_turns": 12,
  "new": {
   "auto_injected": 14,
   "fwd_est_tokens_max": 151168,
   "fwd_est_tokens_mean": 83175,
   "over_window_requests": 0,
   "probes": 10,
   "probes_visible": 10,
   "relayout_write_est_tokens": 407170,
   "relayouts": 4,
   "triggers": [
    {"C": 0, "at": "s01#0", "client_est_tokens": 14161, "fwd_est_tokens_after": 14161, "pending": false, "relayout": false, "trigger": "first"},
    {"C": 51, "at": "x6#1", "client_est_tokens": 161211, "fwd_est_tokens_after": 98864, "pending": false, "relayout": true, "trigger": "window"},
    {"C": 75, "at": "x7#1", "client_est_tokens": 238000, "fwd_est_tokens_after": 104288, "pending": false, "relayout": true, "trigger": "window"},
    {"C": 79, "at": "x10#1", "client_est_tokens": 298250, "fwd_est_tokens_after": 150394, "pending": false, "relayout": true, "trigger": "window"},
    {"C": 81, "at": "x11#1", "client_est_tokens": 308793, "fwd_est_tokens_after": 85729, "pending": false, "relayout": true, "trigger": "window"}
   ]
  },
  "note": "synthetic: the A/B plan plus 12 more Read turns of four repo files each; a client without the context-1m beta (200K window). Tokens are the plan's estimate (bytes / 3) of what the gateway forwards, not ledger tokens.",
  "old": {
   "auto_injected": 0,
   "fwd_est_tokens_max": 242379,
   "fwd_est_tokens_mean": 80436,
   "over_window_requests": 3,
   "probes": 10,
   "probes_visible": 4,
   "relayout_write_est_tokens": 430803,
   "relayouts": 2,
   "triggers": [
    {"C": 0, "at": "s01#0", "client_est_tokens": 14161, "fwd_est_tokens_after": 14161, "pending": false, "relayout": false, "trigger": "first"},
    {"C": 35, "at": "x2#0", "client_est_tokens": 409665, "fwd_est_tokens_after": 66185, "pending": false, "relayout": true, "trigger": "ski"},
    {"C": 87, "at": "x10#1", "client_est_tokens": 1287750, "fwd_est_tokens_after": 242379, "pending": true, "relayout": false, "trigger": "window"},
    {"C": 87, "at": "x11#0", "client_est_tokens": 1287854, "fwd_est_tokens_after": 63217, "pending": false, "relayout": true, "trigger": "window"}
   ]
  },
  "requests": 79,
  "without_recall_fwd_est_tokens_max": 297387
 },
 "new_code": "this commit (the working tree the script runs in)",
 "note": "visible = the exact answer is in the forwarded body after the gateway's hard cap (what a model with tools forbidden could read); no model was run. Dollars: claude-opus-5-5, 1h cache; each call reads the prefix its layout kept and writes the rest. Recall's net = the arm's cost without Recall - with it.",
 "old_code": "50e400a3",
 "pairs": [
  {
   "arm": "final",
   "first_build": {
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    "auto_injections": 3,
    "fwd_tokens_max": 129149,
    "fwd_tokens_mean": 86016,
    "missed": 4,
    "missed_probes": [
     {"auto_bytes": 0, "auto_injected": false, "auto_src": "", "id": "deleted-report-1", "kind": "tool-output", "visible": true},
     {"auto_bytes": 269, "auto_injected": true, "auto_src": "sheet", "id": "const-series-max", "kind": "constant", "visible": true},
     {"auto_bytes": 374, "auto_injected": true, "auto_src": "fts", "id": "const-activation-bytes", "kind": "constant", "visible": true},
     {"auto_bytes": 2326, "auto_injected": true, "auto_src": "fts", "id": "const-activity-cap", "kind": "constant", "visible": true}
    ],
    "pay_checks": 27,
    "probes": [
     {"auto_bytes": 0, "auto_injected": false, "auto_src": "held", "id": "typed-codename", "kind": "typed", "missed_in_ab": false, "old_visible": true, "visible": true},
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     {"auto_bytes": 0, "auto_injected": false, "auto_src": "held", "id": "typed-port", "kind": "typed", "missed_in_ab": false, "old_visible": true, "visible": true},
     {"auto_bytes": 0, "auto_injected": false, "auto_src": "held", "id": "typed-ticket", "kind": "typed", "missed_in_ab": false, "old_visible": true, "visible": true},
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     {"auto_bytes": 0, "auto_injected": false, "auto_src": "", "id": "deleted-report-3", "kind": "tool-output", "missed_in_ab": false, "old_visible": true, "visible": true},
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     {"auto_bytes": 374, "auto_injected": true, "auto_src": "fts", "id": "const-activation-bytes", "kind": "constant", "missed_in_ab": true, "old_visible": false, "visible": true},
     {"auto_bytes": 2326, "auto_injected": true, "auto_src": "fts", "id": "const-activity-cap", "kind": "constant", "missed_in_ab": true, "old_visible": false, "visible": true}
    ],
    "projected_pay_net_usd_max": 0.0241,
    "recall_net_usd": -0.4566,
    "recovered": 4,
    "relayouts": [
     {"K2_est": 164012, "K_est": 339450, "at": "d-date#1", "cut_at_step": "e1", "index_bytes": 5056, "projected_pay_net_usd": 0.0241, "trigger": "pay"}
    ],
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    "visible": 10,
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    "worse_than_old": []
   },
   "model_check": {"fwd_tokens_abs_err_max": 0.103, "fwd_tokens_abs_err_mean": 0.04, "misses_agree": false, "note": "the old code (50e400a3) walked with its re-layout at the recorded call, against the recording", "old_predicted_misses": ["deleted-report-1","deleted-report-2","const-series-max","const-activation-bytes","const-activity-cap"], "old_relayout_at": "t1#1", "recall_net_usd_old_walk": -0.1944, "recall_net_usd_recorded_tokens": -0.2562, "relayout_write_tokens_model": 63119},
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    "fwd_tokens_max": 138725,
    "fwd_tokens_mean": 100277,
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     {"auto_bytes": 316, "auto_injected": true, "auto_src": "fts", "id": "const-series-max", "kind": "constant", "visible": true},
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    ],
    "pay_checks": 0,
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     {"auto_bytes": 326, "auto_injected": true, "auto_src": "fts", "id": "const-activity-cap", "kind": "constant", "missed_in_ab": true, "old_visible": false, "visible": true}
    ],
    "projected_pay_net_usd_max": null,
    "recall_net_usd": -0.0025,
    "recovered": 4,
    "relayouts": [],
    "usd_arm": 2.1456,
    "visible": 10,
    "worse_than_ab": [],
    "worse_than_old": []
   },
   "pair": 1,
   "probe_rule": "tools forbidden",
   "recorded": {"calls": 58, "fwd_tokens_max": 126989, "fwd_tokens_mean": 78083, "misses": ["deleted-report-1","const-series-max","const-activation-bytes","const-activity-cap"], "recall_ledger_net_usd": -0.353711, "relayout_at": "t1#1", "relayout_write_tokens": 71222},
   "seed": 424242,
   "without_recall": {"fwd_tokens_max": 138416, "fwd_tokens_mean": 100266, "usd_arm": 2.143}
  },
  {
   "arm": "final",
   "first_build": {
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    "auto_injections": 3,
    "fwd_tokens_max": 129562,
    "fwd_tokens_mean": 83138,
    "missed": 5,
    "missed_probes": [
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     {"auto_bytes": 0, "auto_injected": false, "auto_src": "", "id": "deleted-report-2", "kind": "tool-output", "visible": true},
     {"auto_bytes": 269, "auto_injected": true, "auto_src": "sheet", "id": "const-series-max", "kind": "constant", "visible": true},
     {"auto_bytes": 374, "auto_injected": true, "auto_src": "fts", "id": "const-activation-bytes", "kind": "constant", "visible": true},
     {"auto_bytes": 2326, "auto_injected": true, "auto_src": "fts", "id": "const-activity-cap", "kind": "constant", "visible": true}
    ],
    "pay_checks": 26,
    "probes": [
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     {"auto_bytes": 0, "auto_injected": false, "auto_src": "held", "id": "typed-ticket", "kind": "typed", "missed_in_ab": false, "old_visible": true, "visible": true},
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     {"auto_bytes": 0, "auto_injected": false, "auto_src": "", "id": "deleted-report-3", "kind": "tool-output", "missed_in_ab": false, "old_visible": true, "visible": true},
     {"auto_bytes": 269, "auto_injected": true, "auto_src": "sheet", "id": "const-series-max", "kind": "constant", "missed_in_ab": true, "old_visible": false, "visible": true},
     {"auto_bytes": 374, "auto_injected": true, "auto_src": "fts", "id": "const-activation-bytes", "kind": "constant", "missed_in_ab": true, "old_visible": false, "visible": true},
     {"auto_bytes": 2326, "auto_injected": true, "auto_src": "fts", "id": "const-activity-cap", "kind": "constant", "missed_in_ab": true, "old_visible": false, "visible": true}
    ],
    "projected_pay_net_usd_max": 0.0253,
    "recall_net_usd": -0.4739,
    "recovered": 5,
    "relayouts": [
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    ],
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    "visible": 10,
    "worse_than_ab": [],
    "worse_than_old": []
   },
   "model_check": {"fwd_tokens_abs_err_max": 0.054, "fwd_tokens_abs_err_mean": 0.027, "misses_agree": true, "note": "the old code (50e400a3) walked with its re-layout at the recorded call, against the recording", "old_predicted_misses": ["deleted-report-1","deleted-report-2","const-series-max","const-activation-bytes","const-activity-cap"], "old_relayout_at": "e3#2", "recall_net_usd_old_walk": -0.214, "recall_net_usd_recorded_tokens": -0.1646, "relayout_write_tokens_model": 62450},
   "new": {
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    "auto_injections": 3,
    "fwd_tokens_max": 134339,
    "fwd_tokens_mean": 96592,
    "missed": 5,
    "missed_probes": [
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     {"auto_bytes": 0, "auto_injected": false, "auto_src": "", "id": "deleted-report-2", "kind": "tool-output", "visible": true},
     {"auto_bytes": 316, "auto_injected": true, "auto_src": "fts", "id": "const-series-max", "kind": "constant", "visible": true},
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     {"auto_bytes": 326, "auto_injected": true, "auto_src": "fts", "id": "const-activity-cap", "kind": "constant", "visible": true}
    ],
    "pay_checks": 0,
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     {"auto_bytes": 0, "auto_injected": false, "auto_src": "held", "id": "typed-port", "kind": "typed", "missed_in_ab": false, "old_visible": true, "visible": true},
     {"auto_bytes": 0, "auto_injected": false, "auto_src": "held", "id": "typed-ticket", "kind": "typed", "missed_in_ab": false, "old_visible": true, "visible": true},
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     {"auto_bytes": 0, "auto_injected": false, "auto_src": "", "id": "deleted-report-2", "kind": "tool-output", "missed_in_ab": true, "old_visible": false, "visible": true},
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     {"auto_bytes": 316, "auto_injected": true, "auto_src": "fts", "id": "const-series-max", "kind": "constant", "missed_in_ab": true, "old_visible": false, "visible": true},
     {"auto_bytes": 287, "auto_injected": true, "auto_src": "fts", "id": "const-activation-bytes", "kind": "constant", "missed_in_ab": true, "old_visible": false, "visible": true},
     {"auto_bytes": 326, "auto_injected": true, "auto_src": "fts", "id": "const-activity-cap", "kind": "constant", "missed_in_ab": true, "old_visible": false, "visible": true}
    ],
    "projected_pay_net_usd_max": null,
    "recall_net_usd": -0.0025,
    "recovered": 5,
    "relayouts": [],
    "usd_arm": 2.03,
    "visible": 10,
    "worse_than_ab": [],
    "worse_than_old": []
   },
   "pair": 2,
   "probe_rule": "tools forbidden",
   "recorded": {"calls": 56, "fwd_tokens_max": 126909, "fwd_tokens_mean": 70468, "misses": ["deleted-report-1","deleted-report-2","const-series-max","const-activation-bytes","const-activity-cap"], "recall_ledger_net_usd": -0.217194, "relayout_at": "e3#2", "relayout_write_tokens": 59320},
   "seed": 424242,
   "without_recall": {"fwd_tokens_max": 134030, "fwd_tokens_mean": 96581, "usd_arm": 2.0274}
  },
  {
   "arm": "final",
   "first_build": {
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    "auto_injections": 3,
    "fwd_tokens_max": 128988,
    "fwd_tokens_mean": 83578,
    "missed": 4,
    "missed_probes": [
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     {"auto_bytes": 269, "auto_injected": true, "auto_src": "sheet", "id": "const-series-max", "kind": "constant", "visible": true},
     {"auto_bytes": 374, "auto_injected": true, "auto_src": "fts", "id": "const-activation-bytes", "kind": "constant", "visible": true},
     {"auto_bytes": 2326, "auto_injected": true, "auto_src": "fts", "id": "const-activity-cap", "kind": "constant", "visible": true}
    ],
    "pay_checks": 27,
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    "auto_injections": 3,
    "fwd_tokens_max": 130369,
    "fwd_tokens_mean": 84791,
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    "relayouts": [
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    "worse_than_old": []
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    "auto_injections": 3,
    "fwd_tokens_max": 139632,
    "fwd_tokens_mean": 99237,
    "missed": 2,
    "missed_probes": [
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     {"auto_bytes": 287, "auto_injected": true, "auto_src": "fts", "id": "const-activation-bytes", "kind": "constant", "visible": true}
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     {"auto_bytes": 0, "auto_injected": false, "auto_src": "held", "id": "typed-port", "kind": "typed", "missed_in_ab": false, "old_visible": true, "visible": true},
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    "projected_pay_net_usd_max": null,
    "recall_net_usd": -0.0025,
    "recovered": 2,
    "relayouts": [],
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    "visible": 10,
    "worse_than_ab": [],
    "worse_than_old": []
   },
   "pair": 4,
   "probe_rule": "archive search allowed (recorded misses are not tools-forbidden misses)",
   "recorded": {"calls": 60, "fwd_tokens_max": 128152, "fwd_tokens_mean": 73663, "misses": ["deleted-report-2","const-activation-bytes"], "recall_ledger_net_usd": -0.176683, "relayout_at": "e3#1", "relayout_write_tokens": 60233},
   "seed": 424242,
   "without_recall": {"fwd_tokens_max": 139323, "fwd_tokens_mean": 99227, "usd_arm": 2.1777}
  }
 ],
 "seed": 424242,
 "summary": {
  "final": {
   "first_build": {"fwd_tokens_max": 129562, "fwd_tokens_mean": 84370, "missed": 17, "recall_net_usd": -1.8514, "recall_net_usd_per_arm": [-0.4566,-0.4739,-0.4654,-0.4555], "recovered": 17, "relayouts": 4, "worse_than_old": 0},
   "new": {"fwd_tokens_max": 138725, "fwd_tokens_mean": 98318, "missed": 17, "recall_net_usd": -0.01, "recall_net_usd_per_arm": [-0.0025,-0.0025,-0.0025,-0.0025], "recovered": 17, "relayouts": 0, "worse_than_old": 0}
  },
  "recorded_final": {"fwd_tokens_max": 126989, "fwd_tokens_mean": 75591, "recall_ledger_net_usd_per_arm": [-0.353711,-0.217194,-0.368532,-0.360159]}
 }
}