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BFM-decomp/docs/family-hseq.md
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Drew T bcc3130eb4 feat(phase-30 S49): the A-prop word-diff card + aprop_wave — 56 banked from the >=16 head (§170) 
- NEW family_cousins.py --aprop-cards + tools/wave/aprop_wave.js: lane A (1,700 open fns /
  76,419 ins) had NO card type — cousin diffs are empty for h_seq-identical members, so the card
  is a positional WORD diff vs the matched sibling, grouped BY FAMILY (one agent, N drafts).
  Head cards: 13 families / 433 members, median TWO differing words each.
- calibration 9 batches / 108 members: 98 agent-MATCH (91%, best of any wave) -> 56 BANKED (57%),
  ~80k tok/banked fn vs 157k (cousin card) vs 400k+ (crack wave). R22 213/213 BYTE-IDENTICAL.
- HONEST GAP (R14): 91% agent -> 57% gate is the worst conversion measured; 14 groups banked 0.
  Hypothesis TESTABLE not proven — family batching concentrates members per destination TU, the
  §169 collision. Re-gate unbanked ONE PER TU before scaling the remaining 320.
- >=16 head diagnosed: 3 of 4 blockers are plumbing — the --band substantial default hid 5 of 13
  families from every prior sweep; one missing file-scope extern (D_801ED98C) gates 56 PURE
  members; dedup_extend is macro-only. Only func_8017C294 is a genuine crack.
- fleet 96.56% fn / 95.2% instr / 89.9% distinct; stubs 12,535 -> 12,468; dedup 2,043/0.
- cookbook §170.
2026-08-13 17:44:20 -06:00

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# Phase 26 — h_seq family survey (T1)
> **Glossary — `zero-crack` in THIS file means `n_matched == 0`: the family has no matched member anywhere and needs its FIRST crack.** (Roadmap §3 T3 uses the phrase for the OPPOSITE case — an already-matched exemplar awaiting propagation.)
>
> Generated by `tools/family_hseq.py` from the 212 binary sigs + per-binary src stubs. Ranked by TEMPLATABLE byte-weight (PURE+IMM members × nins × 4). The byte-gate is the arbiter.
>
> **Scope (212 binaries): 141 location overlays + 70 md_* modules + the resident · MAIN IS EXCLUDED** · generated at HEAD `commit:1843` · stub set derived from `corpus.stubs` — the same oracle `progress.py` counts, so same-tree overlay totals agree by construction; compare digests only at the same HEAD.
**Fleet (overlays):** 96.8% fn / 95.7% instr / 91.1% distinct-code matched. Unmatched: 11,501 instances / 573,821 ins (9,892 distinct classes).
**Tail cross-check (Phase-25 close):** 7,541 tail fns / 372,807 ins → 440 h_seq families ≥2, **72 substantial (nins≥80) / 30,992 ins**.
**Full frontier (all unmatched by h_seq):** 2014 target families (≥2 members or a matched sibling) + 4504 singletons (Step-D residue). Substantial: **266 families / 94,856 templatable ins**, 59 with a matched sibling (zero-crack). Substantial member classes: 671 PURE · 29 IMM · 6 STRUCT-excluded.
## Top substantial families (by templatable byte-weight)
| # | nins | members (P/I/S) | #addr/#ov | tag | class | matched | jr | exemplar | templ. ins |
|--:|--:|--|--|--|--|--:|:-:|--|--:|
| 1 | 246 | 16 (16/0/0) | 6/16 | cross-address | PURE | 0 | · | 0x8017c294 draft-ov077 | 3,936 |
| 2 | 611 | 4 (4/0/0) | 4/4 | cross-address | PURE | 1 | · | 0x80186e24 matched | 2,444 |
| 3 | 770 | 3 (3/0/0) | 1/3 | per-location | PURE | 138 | · | 0x80144b9c matched-ov077 | 2,310 |
| 4 | 551 | 4 (4/0/0) | 4/4 | cross-address | PURE | 1 | Y | 0x80189540 matched | 2,204 |
| 5 | 407 | 4 (4/0/0) | 4/4 | cross-address | PURE | 1 | Y | 0x8017c3bc matched | 1,628 |
| 6 | 279 | 5 (5/0/0) | 4/5 | cross-address | PURE | 0 | Y | 0x8017f2d4 modal | 1,395 |
| 7 | 188 | 7 (7/0/0) | 1/7 | per-location | PURE | 134 | Y | 0x8016ab6c matched-ov077 | 1,316 |
| 8 | 187 | 7 (7/0/0) | 1/7 | per-location | PURE | 134 | · | 0x8013dd68 matched-ov077 | 1,309 |
| 9 | 326 | 4 (4/0/0) | 4/4 | cross-address | PURE | 1 | Y | 0x8017d730 matched | 1,304 |
| 10 | 291 | 4 (4/0/0) | 4/4 | cross-address | PURE | 1 | Y | 0x8017d2a4 matched | 1,164 |
| 11 | 363 | 3 (3/0/0) | 1/3 | per-location | PURE | 138 | Y | 0x8015444c matched-ov077 | 1,089 |
| 12 | 102 | 10 (0/10/0) | 9/10 | scattered | IMM | 78 | · | 0x8017d290 matched | 1,020 |
| 13 | 329 | 3 (3/0/0) | 1/3 | per-location | PURE | 138 | Y | 0x8013c414 matched-ov077 | 987 |
| 14 | 127 | 7 (7/0/0) | 1/7 | per-location | PURE | 134 | · | 0x80145cec matched-ov077 | 889 |
| 15 | 218 | 4 (4/0/0) | 4/4 | cross-address | PURE | 1 | Y | 0x8017cf3c matched | 872 |
| 16 | 272 | 3 (3/0/0) | 1/3 | per-location | PURE | 138 | Y | 0x8013b83c matched-ov077 | 816 |
| 17 | 266 | 3 (3/0/0) | 1/3 | per-location | PURE | 138 | · | 0x80130d48 matched-ov077 | 798 |
| 18 | 196 | 4 (4/0/0) | 4/4 | cross-address | PURE | 0 | Y | 0x8017ffd0 modal | 784 |
| 19 | 108 | 6 (6/0/0) | 6/6 | cross-address | PURE | 0 | Y | 0x8017eeec modal | 648 |
| 20 | 203 | 3 (0/3/0) | 2/3 | cross-address | IMM | 7 | · | 0x8017e804 matched | 609 |
| 21 | 198 | 3 (3/0/0) | 1/3 | per-location | PURE | 138 | Y | 0x8013bd74 matched-ov077 | 594 |
| 22 | 94 | 6 (6/0/0) | 6/6 | cross-address | PURE | 0 | · | 0x801874e4 modal | 564 |
| 23 | 110 | 5 (5/0/0) | 5/5 | cross-address | PURE | 1 | · | 0x80188b9c matched | 550 |
| 24 | 275 | 2 (2/0/0) | 2/1 | cross-address | PURE | 0 | · | 0x8017f9ac modal | 550 |
| 25 | 91 | 6 (6/0/0) | 6/6 | cross-address | PURE | 0 | · | 0x80189e60 modal | 546 |
| 26 | 265 | 2 (0/2/0) | 2/2 | cross-address | IMM | 5 | · | 0x80183e04 matched | 530 |
| 27 | 127 | 4 (4/0/0) | 4/4 | cross-address | PURE | 1 | · | 0x8017eb70 matched | 508 |
| 28 | 101 | 5 (5/0/0) | 5/5 | cross-address | PURE | 1 | · | 0x8017f278 matched | 505 |
| 29 | 124 | 4 (4/0/0) | 4/4 | cross-address | PURE | 1 | · | 0x8017dd28 matched | 496 |
| 30 | 246 | 2 (2/0/0) | 2/1 | cross-address | PURE | 0 | · | 0x8017f5d4 modal | 492 |
| 31 | 154 | 3 (3/0/0) | 1/3 | per-location | PURE | 138 | Y | 0x8013c0f8 matched-ov077 | 462 |
| 32 | 148 | 3 (3/0/0) | 1/3 | per-location | PURE | 138 | · | 0x8016d1d8 matched-ov077 | 444 |
| 33 | 111 | 4 (4/0/0) | 4/4 | cross-address | PURE | 0 | · | 0x801832f8 modal | 444 |
| 34 | 108 | 4 (4/0/0) | 4/4 | cross-address | PURE | 1 | Y | 0x8017ca18 matched | 432 |
| 35 | 107 | 4 (4/0/0) | 2/4 | cross-address | PURE | 2 | · | 0x8018a438 matched | 428 |
| 36 | 85 | 5 (5/0/0) | 5/5 | cross-address | PURE | 0 | · | 0x8017d3f4 modal | 425 |
| 37 | 212 | 2 (2/0/0) | 2/1 | cross-address | PURE | 0 | · | 0x801805d4 modal | 424 |
| 38 | 84 | 5 (5/0/0) | 4/5 | cross-address | PURE | 0 | · | 0x8017e108 modal | 420 |
| 39 | 209 | 2 (2/0/0) | 2/2 | cross-address | PURE | 0 | Y | 0x801810c8 modal | 418 |
| 40 | 201 | 2 (2/0/0) | 1/2 | per-location | PURE | 1 | Y | 0x80181be4 matched-ov077 | 402 |
| 41 | 397 | 1 (1/0/0) | 1/1 | per-location | PURE | 2 | · | 0x8018f060 matched | 397 |
| 42 | 197 | 2 (2/0/0) | 1/2 | per-location | PURE | 0 | · | 0x80184a08 modal | 394 |
| 43 | 97 | 4 (4/0/0) | 4/4 | cross-address | PURE | 0 | · | 0x8017dab8 modal | 388 |
| 44 | 97 | 4 (4/0/0) | 4/4 | cross-address | PURE | 0 | · | 0x80181edc modal | 388 |
| 45 | 97 | 4 (4/0/0) | 4/4 | cross-address | PURE | 0 | · | 0x801822c0 modal | 388 |
| 46 | 96 | 4 (4/0/0) | 4/4 | cross-address | PURE | 0 | · | 0x8017fd64 modal | 384 |
| 47 | 192 | 2 (2/0/0) | 2/2 | cross-address | PURE | 1 | · | 0x80191020 matched | 384 |
| 48 | 127 | 3 (3/0/0) | 3/3 | cross-address | PURE | 0 | · | 0x80181d44 modal | 381 |
| 49 | 95 | 4 (4/0/0) | 4/4 | cross-address | PURE | 0 | · | 0x8018317c modal | 380 |
| 50 | 94 | 4 (4/0/0) | 4/4 | cross-address | PURE | 0 | · | 0x80188250 modal | 376 |
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