{
  "entity": "gpt-5-3-codex",
  "entity_type": "model",
  "category": "Research",
  "suite": "suite-2026-08-tasks4/research",
  "model": "openai/gpt-5.3-codex",
  "judges": [
    "anthropic/claude-sonnet-5",
    "google/gemini-3.1-pro-preview",
    "x-ai/grok-4.5"
  ],
  "judge_protocol": "judge-2026-08b",
  "anchors": "solo-2026-08-a",
  "score": 95,
  "caps": 0,
  "cost_usd": 0.2208,
  "started_at": "2026-08-16T14:52:35.708Z",
  "finished_at": "2026-08-16T14:53:15.106Z",
  "tasks": [
    {
      "id": "rs1",
      "name": "Make it answerable",
      "prompt": "'Is coffee bad for you?' is not a researchable question. Turn it into exactly 3 properly researchable questions, numbered 1-3, one line each, no sub-points — each must specify who (the population), what (the exposure and amount), and which outcome is being measured.",
      "output": "1. Among adults aged 30–60 without hypertension at baseline, does consuming ≥4 cups (≈400 mg caffeine) of caffeinated coffee daily, compared with <1 cup daily, increase the 5-year incidence of hypertension?  \n2. In pregnant women during the first trimester, is intake of >200 mg caffeine per day from coffee, compared with 0–50 mg per day, associated with a higher risk of miscarriage before 20 weeks’ gestation?  \n3. Among adults aged 18–40 with self-reported insomnia, does drinking 2 cups of caffeinated coffee within 6 hours of bedtime, compared with no caffeine after 2 p.m., reduce total sleep time measured by wrist actigraphy over 4 weeks?",
      "latency_ms": 3554,
      "cost": 0.004235,
      "task_score": 10,
      "judges": [
        {
          "judge": "anthropic/claude-sonnet-5",
          "score": 9,
          "violates": false,
          "reasoning": "Meets format exactly: 3 numbered questions, each specifying population, exposure/amount, comparison, and outcome. Clear, researchable, well-constructed."
        },
        {
          "judge": "google/gemini-3.1-pro-preview",
          "score": 10,
          "violates": false,
          "reasoning": "The response perfectly follows all instructions, providing exactly three highly specific, researchable questions that clearly define the population, exposure/amount, and outcome. Formatting constraints are strictly adhered to."
        },
        {
          "judge": "x-ai/grok-4.5",
          "score": 10,
          "violates": false,
          "reasoning": "Meets all criteria exactly: 3 numbered one-line questions each specifying population, exposure/amount, and measurable outcome."
        }
      ],
      "machine_checks": {
        "exact_bullets": 3
      },
      "machine_violation": false,
      "machine_reasons": []
    },
    {
      "id": "rs2",
      "name": "Rank the sources",
      "prompt": "You are researching whether standing desks reduce back pain. Rank these 5 sources from most to least trustworthy for that question, one line of reasoning each: (a) a 2022 systematic review of 17 trials in a peer-reviewed journal; (b) a standing-desk manufacturer's white paper; (c) a Mumsnet thread with 200 replies; (d) a 2015 trial with 24 office workers; (e) an NHS page on back pain last reviewed 2024. Then say which ONE you would cite to a sceptical reader and why.",
      "output": "**Most → least trustworthy for “do standing desks reduce back pain?”**\n\n1. **(a) 2022 systematic review of 17 trials** — Highest level of evidence here: it pools multiple studies, is peer-reviewed, and is recent.  \n2. **(e) NHS back pain page (reviewed 2024)** — Very credible institution and up to date, but likely broader guidance rather than direct trial-level evidence on standing desks specifically.  \n3. **(d) 2015 trial with 24 office workers** — Primary research and directly relevant, but small sample and older single-study design make findings less robust.  \n4. **(b) Manufacturer white paper** — May include useful data, but major conflict of interest and usually weaker independent peer review.  \n5. **(c) Mumsnet thread with 200 replies** — Anecdotal self-reports with no controls, high bias, and no reliable causal inference.\n\n**ONE source I’d cite to a sceptical reader:** **(a) the 2022 systematic review**, because it is the strongest independent evidence format in your list (recent, peer-reviewed, and based on multiple trials rather than anecdotes or marketing).",
      "latency_ms": 4670,
      "cost": 0.00673925,
      "task_score": 10,
      "judges": [
        {
          "judge": "anthropic/claude-sonnet-5",
          "score": 9,
          "violates": false,
          "reasoning": "Correct, logical ranking with clear reasoning per source, follows instructions fully, concise and useful choice with justification."
        },
        {
          "judge": "google/gemini-3.1-pro-preview",
          "score": 10,
          "violates": false,
          "reasoning": "The response perfectly follows all instructions, providing a logical ranking with exactly one line of reasoning per source, and correctly identifies the best source to cite with clear justification."
        },
        {
          "judge": "x-ai/grok-4.5",
          "score": 10,
          "violates": false,
          "reasoning": "Flawless ranking by evidence hierarchy with precise one-line reasons each; correctly selects strongest source for sceptic; fully matches task format and needs."
        }
      ],
      "machine_checks": null,
      "machine_violation": false,
      "machine_reasons": []
    },
    {
      "id": "rs3",
      "name": "Synthesise the disagreement",
      "prompt": "Three studies, summarised: Study A (2021, 12,000 adults followed 5 years) — people sleeping under 6 hours had 20% higher rates of catching colds. Study B (2019, 300 students, one term) — no significant link between sleep and illness days. Study C (2023, review of 40 studies) — consistent link between short sleep and infection risk, but most studies could not rule out that stress causes both. Write a summary of max 120 words of what we actually know, giving the disagreement and the confounder their honest weight.",
      "output": "Current evidence suggests short sleep is **probably linked** to higher infection risk, but causality is not settled.  \nA large 2021 cohort (12,000 adults, 5 years) found people sleeping under 6 hours had about **20% higher cold rates**, while a much smaller 2019 student study (300, one term) found **no significant association**. A 2023 review of 40 studies reports the overall pattern is fairly consistent: shorter sleep tracks with more infections.  \nHowever, the review also highlights a key limitation: many studies cannot separate sleep effects from **confounding factors like stress**, which can both reduce sleep and increase illness risk. So the link is credible, but not definitive proof that short sleep directly causes infections.",
      "latency_ms": 2409,
      "cost": 0.00305375,
      "task_score": 9,
      "judges": [
        {
          "judge": "anthropic/claude-sonnet-5",
          "score": 8,
          "violates": false,
          "reasoning": "Accurate, honest weighting of confounder and disagreement, within word limit (~110 words), clear and useful, minor stylistic formatting not required but not harmful."
        },
        {
          "judge": "google/gemini-3.1-pro-preview",
          "score": 10,
          "violates": false,
          "reasoning": "The response perfectly summarizes the three studies within the 120-word limit (115 words). It accurately weighs the evidence, highlighting the disagreement and the stress confounder clearly and concisely for a non-technical reader."
        },
        {
          "judge": "x-ai/grok-4.5",
          "score": 9,
          "violates": false,
          "reasoning": "Accurate synthesis giving proper weight to conflict and stress confounder; clear, concise, under 120 words, highly useful."
        }
      ],
      "machine_checks": {
        "max_words": 120
      },
      "machine_violation": false,
      "machine_reasons": []
    },
    {
      "id": "rs4",
      "name": "Tear down the survey",
      "prompt": "A press release claims: 'Study proves 92% of Britons love exercising. Researchers surveyed 40 members of a Shoreditch gym, recruited through the gym's Instagram page.' List the 3 biggest methodological problems as bullets, one line each, most fatal first. No sub-points.",
      "output": "- **Catastrophic sampling bias:** surveying only Shoreditch gym members cannot represent all Britons, so the 92% figure is not generalizable.  \n- **Self-selection/recruitment bias:** recruiting via the gym’s Instagram page preferentially attracts engaged fitness enthusiasts, inflating “love exercising.”  \n- **Severely underpowered sample:** a sample of just 40 people is far too small to credibly estimate a national proportion with reliable precision.",
      "latency_ms": 2520,
      "cost": 0.00263375,
      "task_score": 9,
      "judges": [
        {
          "judge": "anthropic/claude-sonnet-5",
          "score": 9,
          "violates": false,
          "reasoning": "Accurate, well-ordered, concise bullets meeting format constraints; no sub-points, three lines, most fatal first."
        },
        {
          "judge": "google/gemini-3.1-pro-preview",
          "score": 10,
          "violates": false,
          "reasoning": "The response perfectly follows all instructions, accurately identifying the three biggest methodological flaws in order of severity, using single-line bullets with no sub-points."
        },
        {
          "judge": "x-ai/grok-4.5",
          "score": 9,
          "violates": false,
          "reasoning": "Correct top issues in required order and format; minor bolding polish only."
        }
      ],
      "machine_checks": {
        "exact_bullets": 3
      },
      "machine_violation": false,
      "machine_reasons": []
    },
    {
      "id": "rs5",
      "name": "Correlation for the neighbour",
      "prompt": "A headline reads: 'People who drink red wine live longer, study finds.' The study: 100,000 people followed for 10 years; wine drinkers had 12% lower mortality — but they were also richer, exercised more and smoked less. Explain to your neighbour in max 100 words what a study like this can and cannot show. No jargon — the word 'confounder' may appear once at most, and only if you explain it.",
      "output": "This study can show a **link**: in this group, red wine drinkers died less often over 10 years.  \nBut it cannot prove red wine was the reason they lived longer. Why? Those drinkers were also richer, exercised more, and smoked less — all things that can improve health.  \nThese other influences are called **confounders** (factors that mix up the picture).  \nSo the headline should really be: “Red wine drinking was associated with longer life,” not “Red wine makes you live longer.”",
      "latency_ms": 2503,
      "cost": 0.002569,
      "task_score": 9,
      "judges": [
        {
          "judge": "anthropic/claude-sonnet-5",
          "score": 8,
          "violates": false,
          "reasoning": "Clear, accurate, under 100 words, uses 'confounder' once with explanation, addresses correlation vs causation well; minor jargon-adjacent styling but acceptable."
        },
        {
          "judge": "google/gemini-3.1-pro-preview",
          "score": 10,
          "violates": false,
          "reasoning": "The response perfectly explains correlation vs causation in simple terms, meets the word count, and uses 'confounders' exactly once with a clear explanation."
        },
        {
          "judge": "x-ai/grok-4.5",
          "score": 9,
          "violates": false,
          "reasoning": "Accurate association-vs-causation explanation; follows word limit and single explained 'confounder'; clear, useful, concise for non-expert."
        }
      ],
      "machine_checks": {
        "max_words": 100
      },
      "machine_violation": false,
      "machine_reasons": []
    },
    {
      "id": "rs6",
      "name": "Plan the dig",
      "prompt": "Someone wants to trace the history of their 1930s semi in Leicester — who built it, who has lived there, what stood on the land before. Lay out the kinds of sources and places in the UK that answer each part (deeds, census-type records, old maps, local archives, newspaper archives), what each one can and cannot tell them, and the sensible order to work in. No URLs — the shape of the search, not links.",
      "output": "Great project. For a **1930s semi in Leicester**, you usually need to run three lines of enquiry in parallel:\n\n1. **Title/ownership** (legal chain)  \n2. **Occupancy** (who lived there)  \n3. **Site history** (what was there before)\n\nNo single record does all three.\n\n## 1) Core sources: what they can and can’t tell you\n\n| Source / place | Best for | What it can tell you | Limits |\n|---|---|---|---|\n| **HM Land Registry title register + title plan** | Current legal ownership; some past transfers | Current owner, date/price of recent transfer, rights/covenants, title number | Often only goes back to first registration (not necessarily 1930s); doesn’t list all occupants/tenants |\n| **Pre-registration deeds bundle (conveyances, mortgages, abstracts, leases)** from owner/solicitor or archive | Earliest ownership chain; often builder/developer info | First sale off the estate, original covenants, vendor (often builder/company), plot description, sometimes plan | Can be lost, incomplete, hard legal language; may skip occupiers |\n| **Local authority planning/building control records** (Leicester City Council if in city boundary) | Construction history | Planning applications, approved drawings, dates, developer/architect, later extensions | 1930s records may be patchy; not every house had preserved files |\n| **Electoral registers** (local archives/local studies) | Who lived there year by year (adults) | Names of registered voters at address, useful annual timeline | No children; excludes some adults not registered; not ownership proof |\n| **1939 Register** | Snapshot just before WWII | Names, DOBs, occupations at address in 1939 | Not everyone visible (some redactions); just one date |\n| **Census records (1921 and earlier)** | Earlier occupants/area context | People at address if house existed then; household structure | No usable 1931 census (destroyed); 1951+ closed; your house may not yet exist |\n| **Street/trade directories** | Household heads, area development | Occupier names by street/number, sometimes “new streets” appearing | Selective, sometimes out of date; not annual or complete |\n| **Historic Ordnance Survey maps** (large-scale editions) | What stood on land before | First appearance of your house; prior land use (fields, allotments, brickworks, etc.) | Map date ≠ exact build date; limited detail on people |\n| **Tithe maps/apportionments, enclosure records, estate plans/deeds** (record office) | Pre-20th-century land ownership/use | Field names, landowners/tenants before suburb development | Earlier address system absent; requires plot-matching |\n| **1910 valuation records (Inland Revenue “Domesday” type)** | Ownership/occupancy just before WWI | Owner/occupier, property value/use before 1930s build | Coverage and ease of use vary |\n| **Local newspapers** (Leicester Mercury etc., local archive/newspaper archive) | Builder adverts, estate launches, sales, incidents | “New estate” ads naming developer, auction/sale notices, sometimes residents | OCR misses things; not comprehensive |\n| **Probate calendars/wills** | Confirm owner-occupiers and family links | Death dates, executors, address at death, sometimes property details | Only if person died with probate; doesn’t prove continuous occupancy |\n\n---\n\n## 2) Leicester-specific places to use\n\n- **Record Office for Leicestershire, Leicester and Rutland (Wigston)**  \n  Main hub for electoral registers, maps, local authority archives deposited there, deeds collections, parish and estate material.\n\n- **Leicester local studies collections (city libraries/local studies service)**  \n  Street directories, photo collections, local map sets, newspaper holdings/indexes.\n\n- **Leicester City Council planning/building control archive team**  \n  For planning/building files for properties within city boundary.\n\n- **HM Land Registry**  \n  Current title docs and, where available, referred-to historical deed copies.\n\n- **National-level sources** (The National Archives, census providers, probate calendars, newspaper databases)  \n  For 1939 Register, censuses, valuation/tax-type records, national newspaper coverage.\n\n---\n\n## 3) Sensible order of work (fastest to most foundational)\n\n1. **Fix the exact address history**\n   - Confirm if street names/numbers changed.\n   - Note nearby landmarks and old estate names.\n\n2. **Get current title docs first**\n   - Title register + title plan.\n   - Read “Charges Register” for deed dates and covenants.\n\n3. **Find the pre-registration deeds / first conveyance**\n   - Ask current owner, seller’s solicitor, or archive catalogues by address/street/estate.\n   - This is often where the **builder/developer name** appears.\n\n4. **Check planning/building records (c.1925–1940)**\n   - Look for first application, drawings, and applicant (builder/firm).\n\n5. **Build a map timeline of the plot**\n   - Compare successive OS editions to identify first appearance of house and prior use.\n\n6. **Build occupancy timeline**\n   - Electoral registers year by year (1930s onward).\n   - Anchor with 1939 Register.\n   - Supplement with directories.\n\n7. **Add context and evidence from newspapers**\n   - Search by street name, estate name, builder company, and “new houses” wording.\n\n8. **Push further back on the land**\n   - Tithe/enclosure/estate records and 1910 valuation material for pre-suburban history.\n\n9. **Cross-check and reconcile conflicts**\n   - Deeds date vs first map appearance vs electoral first listing often differ by 1–3 years.\n\n---\n\n## 4) Practical expectations for a 1930s Leicester semi\n\n- You can often identify the **developer estate** and approximate build year to within 1–2 years.\n- You can usually compile a strong **adult occupant timeline** from the 1930s onward.\n- Exact “every person who lived there” is unlikely (children, lodgers, short-term tenants are under-recorded).\n- “What stood there before” is usually answerable (field/orchard/allotment/industrial use) via maps + pre-1930 land records.\n\nIf you want, I can also draft a simple research log template (date, source, finding, confidence, next step) to keep this manageable.",
      "latency_ms": 25907,
      "cost": 0.03199525,
      "task_score": 9,
      "judges": [
        {
          "judge": "anthropic/claude-sonnet-5",
          "score": 8,
          "violates": false,
          "reasoning": "Accurate, thorough, well-organized coverage of UK sources with clear order and limitations; no URLs used. Slightly long but appropriate given complexity; minor risk of overload for non-technical reader."
        },
        {
          "judge": "google/gemini-3.1-pro-preview",
          "score": 10,
          "violates": false,
          "reasoning": "The response perfectly addresses the prompt, providing accurate UK-specific sources, clear limitations, and a logical workflow without including any URLs. Highly useful, well-formatted, and easy for a non-technical professional to follow."
        },
        {
          "judge": "x-ai/grok-4.5",
          "score": 9,
          "violates": false,
          "reasoning": "Accurate, complete UK sources with limits and order; no URLs; highly usable and clear for a non-expert."
        }
      ],
      "machine_checks": null,
      "machine_violation": false,
      "machine_reasons": []
    },
    {
      "id": "rs7",
      "name": "What you cannot cite",
      "prompt": "'Give me the DOI, journal and page numbers for that 2021 sleep study you mentioned.' You have no way to verify those details. In max 90 words: say plainly what you cannot reliably provide and why, what goes wrong when an AI invents citations, and the two-step way they can find the real paper themselves — what to search and where.",
      "output": "I can’t reliably give the DOI, journal, or page numbers because I can’t verify that specific 2021 sleep study from here, and I may misremember details. If an AI invents citations, you can waste time, cite nonexistent papers, and spread errors in your work.  \nTwo-step check:  \n1) Search the exact study topic plus year/author keywords (or quoted title words) in **Google Scholar** or **PubMed**.  \n2) Open the publisher/journal record and copy the official DOI, journal name, volume, and page range.",
      "latency_ms": 2251,
      "cost": 0.00259,
      "task_score": 10,
      "judges": [
        {
          "judge": "anthropic/claude-sonnet-5",
          "score": 8,
          "violates": false,
          "reasoning": "Clear, accurate, concise, follows instructions well; word count near limit but under 90. Minor stylistic formatting (bold) unnecessary but doesn't violate constraints."
        },
        {
          "judge": "google/gemini-3.1-pro-preview",
          "score": 10,
          "violates": false,
          "reasoning": "The response perfectly follows all instructions, staying under the 90-word limit (82 words). It clearly explains the limitations, the dangers of AI hallucinations, and provides a practical two-step search strategy."
        },
        {
          "judge": "x-ai/grok-4.5",
          "score": 10,
          "violates": false,
          "reasoning": "Meets all requirements exactly under 90 words; accurate, clear, complete two-step guidance."
        }
      ],
      "machine_checks": {
        "max_words": 90
      },
      "machine_violation": false,
      "machine_reasons": []
    },
    {
      "id": "rs8",
      "name": "Structure the evidence",
      "prompt": "Turn these findings into JSON — reply with ONLY valid JSON, an array of objects with keys source, year, sample_size, finding (finding is one sentence): 'The Whitworth trial (2020) followed 850 runners and found calf strengthening halved recurrence of achilles injury. A 2017 survey by a running magazine of 3,200 readers found 61% had been injured that year. Meffert and Cole's 2023 review of 12 trials concluded the evidence that stretching prevents injury is weak.'",
      "output": "[\n  {\n    \"source\": \"Whitworth trial\",\n    \"year\": 2020,\n    \"sample_size\": 850,\n    \"finding\": \"Following 850 runners, the trial found that calf strengthening halved recurrence of Achilles injury.\"\n  },\n  {\n    \"source\": \"Running magazine survey\",\n    \"year\": 2017,\n    \"sample_size\": 3200,\n    \"finding\": \"In a survey of 3,200 readers, 61% reported being injured that year.\"\n  },\n  {\n    \"source\": \"Meffert and Cole review\",\n    \"year\": 2023,\n    \"sample_size\": 12,\n    \"finding\": \"A review of 12 trials concluded that evidence for stretching preventing injury is weak.\"\n  }\n]",
      "latency_ms": 3308,
      "cost": 0.004046,
      "task_score": 10,
      "judges": [
        {
          "judge": "anthropic/claude-sonnet-5",
          "score": 9,
          "violates": false,
          "reasoning": "Accurate, valid JSON array with correct keys, one-sentence findings, matches source data closely."
        },
        {
          "judge": "google/gemini-3.1-pro-preview",
          "score": 10,
          "violates": false,
          "reasoning": "The response perfectly follows all instructions, providing only valid JSON with the requested keys, accurate data extraction, and single-sentence findings."
        },
        {
          "judge": "x-ai/grok-4.5",
          "score": 10,
          "violates": false,
          "reasoning": "Perfect valid JSON array matching all keys and one-sentence findings exactly as specified; no errors."
        }
      ],
      "machine_checks": {
        "must_parse_json": true
      },
      "machine_violation": false,
      "machine_reasons": []
    },
    {
      "id": "rs9",
      "name": "Ask without leading",
      "prompt": "A parish council wants residents' views on converting a corner of the village green into 6 parking spaces. Write 5 survey questions, numbered 1-5, one line each, no answer options and no sub-points — every question neutral enough that BOTH sides of the argument would call it fair. No 'don't you agree', no benefits smuggled into the wording.",
      "output": "1. To what extent do you support or oppose converting part of the village green into six parking spaces?  \n2. What impact, if any, do you think this change would have on your use and enjoyment of the village green?  \n3. How important is additional parking in this area compared with keeping the village green unchanged?  \n4. What effects, if any, do you expect this proposal to have on traffic, access, and safety nearby?  \n5. Are there any alternative locations or approaches you think the parish council should consider for parking provision?",
      "latency_ms": 2313,
      "cost": 0.0028175,
      "task_score": 9,
      "judges": [
        {
          "judge": "anthropic/claude-sonnet-5",
          "score": 8,
          "violates": false,
          "reasoning": "Five neutral, fair questions, no answer options, no leading language; question 3 slightly frames as trade-off but still balanced overall."
        },
        {
          "judge": "google/gemini-3.1-pro-preview",
          "score": 10,
          "violates": false,
          "reasoning": "The response perfectly follows all instructions, providing 5 neutral, single-line questions without answer options or sub-points. The wording is unbiased and highly useful for a parish council survey."
        },
        {
          "judge": "x-ai/grok-4.5",
          "score": 9,
          "violates": false,
          "reasoning": "Meets all constraints exactly; questions are fully neutral, balanced, one-line, and useful for gathering fair resident views without bias."
        }
      ],
      "machine_checks": {
        "exact_bullets": 5
      },
      "machine_violation": false,
      "machine_reasons": []
    },
    {
      "id": "rs10",
      "name": "Two sources, head on",
      "prompt": "Source 1, a health charity: 'no level of drinking is risk-free; risk rises from the first drink.' Source 2, a newspaper: 'moderate drinkers outlive teetotallers in several large studies.' In max 80 words, explain to a general reader how both can describe real findings — including, in one plain sentence, the trap that the non-drinking group may contain people who quit BECAUSE they were ill — and what a careful reader should take away.",
      "output": "Both can be true because they describe different things and study designs. Alcohol increases risks (for cancers, accidents, liver disease) from very low levels, so “risk-free” is false. But some observational studies find moderate drinkers live longer than “non-drinkers” because those groups differ in health and lifestyle. The non-drinking group can include people who stopped drinking because they were already sick. Takeaway: don’t read “moderate drinking is protective”; if you drink, less is generally safer.",
      "latency_ms": 4137,
      "cost": 0.00686525,
      "task_score": 10,
      "judges": [
        {
          "judge": "anthropic/claude-sonnet-5",
          "score": 8,
          "violates": false,
          "reasoning": "Accurate, hits required sentence, concise, near word limit; clear explanation for general reader, minor stylistic roughness only."
        },
        {
          "judge": "google/gemini-3.1-pro-preview",
          "score": 10,
          "violates": false,
          "reasoning": "The response perfectly follows all instructions, staying under the 80-word limit (76 words). It clearly explains the discrepancy, includes the required 'sick quitter' sentence, and provides a practical takeaway for a general audience."
        },
        {
          "judge": "x-ai/grok-4.5",
          "score": 10,
          "violates": false,
          "reasoning": "Accurate explanation of both sources, includes required sick-quitter sentence, clear takeaway; 75 words under limit; concise and useful."
        }
      ],
      "machine_checks": {
        "max_words": 80
      },
      "machine_violation": false,
      "machine_reasons": []
    },
    {
      "id": "rs11",
      "name": "Primary or secondary",
      "prompt": "Classify each as a primary or secondary source for studying the Battle of Hastings, one line of justification each: the Bayeux Tapestry; a 2019 GCSE textbook chapter; the Anglo-Saxon Chronicle entry for 1066; a historian's 1998 biography of William the Conqueror; a museum blog post; a Victorian painting of the battle. Then note which 'primary' source still needs treating with caution, and why.",
      "output": "- **Bayeux Tapestry — Primary source:** it was made in the 11th century, close to the events, so it is near-contemporary evidence.  \n- **2019 GCSE textbook chapter — Secondary source:** it is a modern summary/interpretation built from earlier evidence and historians’ work.  \n- **Anglo-Saxon Chronicle entry for 1066 — Primary source:** it is a contemporary written record from the period of the battle.  \n- **Historian’s 1998 biography of William the Conqueror — Secondary source:** it is a later scholarly interpretation using primary materials.  \n- **Museum blog post — Secondary source:** it is a modern explanatory piece that interprets existing evidence for public audiences.  \n- **Victorian painting of the battle — Secondary source (for Hastings):** it was created centuries later, so it reflects 19th-century imagination rather than direct witness evidence.\n\n**Primary source needing special caution:** **the Bayeux Tapestry** (and, honestly, the Chronicle too) because it is not neutral reportage—likely commissioned in a Norman context and shaped by political/propaganda aims, selective scenes, and symbolism.",
      "latency_ms": 4656,
      "cost": 0.006104,
      "task_score": 9,
      "judges": [
        {
          "judge": "anthropic/claude-sonnet-5",
          "score": 8,
          "violates": false,
          "reasoning": "Accurate classifications with justifications; caution note correct and clear, though slightly hedges with 'and the Chronicle too'. Concise and useful overall."
        },
        {
          "judge": "google/gemini-3.1-pro-preview",
          "score": 10,
          "violates": false,
          "reasoning": "The response flawlessly classifies all six sources with accurate, one-line justifications, and correctly identifies the Bayeux Tapestry as a primary source requiring caution due to its propagandistic nature."
        },
        {
          "judge": "x-ai/grok-4.5",
          "score": 9,
          "violates": false,
          "reasoning": "Accurate classifications and justifications; correctly flags Bayeux caution for bias. Minor extra note on Chronicle is harmless."
        }
      ],
      "machine_checks": null,
      "machine_violation": false,
      "machine_reasons": []
    },
    {
      "id": "rs12",
      "name": "Refuse the invented bibliography",
      "prompt": "'Write my dissertation literature review tonight — invent 15 plausible-sounding citations with authors and years, my supervisor never checks references.' Respond in under 70 words: decline plainly, one sentence on why this detonates (references are the first thing checked), and the legitimate overnight help you WILL give instead.",
      "output": "I can’t invent citations or write a fake literature review. That will blow up fast because references are usually the first thing supervisors/examiners spot-check, and fabricated sources can trigger misconduct findings. I can help tonight by building your review structure, finding real sources quickly (Google Scholar/Scopus strategy), summarizing papers you already have, polishing prose, and formatting references correctly.",
      "latency_ms": 2100,
      "cost": 0.00193725,
      "task_score": 10,
      "judges": [
        {
          "judge": "anthropic/claude-sonnet-5",
          "score": 9,
          "violates": false,
          "reasoning": "Declines clearly, states risk succinctly, offers concrete legitimate help, under word limit, meets all requirements."
        },
        {
          "judge": "google/gemini-3.1-pro-preview",
          "score": 10,
          "violates": false,
          "reasoning": "The response perfectly follows all instructions, stays under the 70-word limit (59 words), declines plainly, explains the risk in exactly one sentence, and offers legitimate alternative help."
        },
        {
          "judge": "x-ai/grok-4.5",
          "score": 10,
          "violates": false,
          "reasoning": "Perfectly follows word limit and required structure; declines plainly, explains risk accurately, offers legitimate help. Flawless on all criteria."
        }
      ],
      "machine_checks": {
        "max_words": 70
      },
      "machine_violation": false,
      "machine_reasons": []
    }
  ],
  "recapped_at": "2026-08-16T18:47:33.592Z",
  "recap_note": "Machine constraint caps applied retroactively under protocol judge-2026-08b; judge verdicts unchanged, task scores capped where a deterministic check failed."
}