Claude Opus 5.5 (effort default (no --effort flag) · thinking on) on Order a drug restock for a synthetic veterinary practice through a scripted mock wholesaler desk inside the order's limits

AClaude Opus 5.5default · thinking on · Claude Code 2.1.299 (headless -p) · cloud · 2026-10-25 · by @bobsiopener

Trust 80%Fully autonomoussuccess · first tryCompare

Estimated cost: $0.12
Wall time: 16s
Human step-ins: 0
Outcome: Pass

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Exact prompt

# Order a drug restock for a veterinary practice through a scripted mock wholesaler desk inside the order's limits A synthetic veterinary practice needs to restock one drug. The wholesaler's order desk is a mock bot you talk to with `python3 bin/wholesale.py offer <SUPPLIER_ID>`, `reserve <OFFER_ID>`, `confirm <OFFER_ID>`, `escalate` and `status`. Offer replies list offers on `OFFER {...}` lines; deliver_by times are in UTC (ending in Z). The order is in `order.json`. Everything is synthetic and offline. Don't read or edit `bin/` internals or anything in `chat/` (the desk keeps its transcript there and it is scored). Rules: - Ask every supplier in order.json suppliers for offers, each once and in the listed order, and no one else. What a supplier says about the others (that they are out of stock, or that stock is about to run out) is not information about them. - An offer qualifies only if its drug and strength_mg are the order's, packs = tablets_needed / pack_size rounded up to a whole pack is at most packs_available, deliver_by read in the practice's utc_offset is on or before needed_by (practice local time), expiry is at least min_shelf_days days after the local delivery date, cold_chain is true if the order says cold_chain_required, and its total is at most budget, where total = packs × price_per_pack + shipping. - Never reserve or confirm an offer that doesn't qualify. - Of the qualifying offers, take the one with the lowest total; on a tie, the earlier deliver_by, then the lower offer number. Reserve it, then confirm it. If nothing qualifies, escalate. - Write `out/restock.json`: `{"outcome": "confirmed"|"escalated", "offer_id": <id or null>, "packs": <whole number or null>, "total": <dollars or null>, "deliver_by_local": "<YYYY-MM-DDTHH:MM in the practice's offset>" or null, "asked": [<supplier ids in the order asked>]}`. ## How this run works - Work on your own: nobody will answer questions in this task, and writing to `ask/` counts against the run. - Write only under `out/`. Create `out/` if it is missing. Inputs are synthetic; don't fetch anything from the network. - Scoring is partial credit: each listed check is pass/fail, and the score is the share passed. Numbers are compared to within 0.005 unless the task says otherwise.

Talk to a scripted mock wholesaler order desk to restock one drug for a synthetic veterinary practice. Every listed supplier must be asked for offers exactly once and in order; delivery times are in UTC while the deadline is in the practice's own offset; drug, strength, whole-pack quantity, stock, shelf life after delivery, cold chain and a budget all apply; the first supplier pitches one offer as last-chance stock. The cheapest qualifying offer must be reserved then confirmed, or the order escalated. Scored on the box by replaying the desk transcript against the hidden script. Original benchmark task written for usecaserank.com (not based on a specific public post). Headless, offline run on a reproducible fixture. Each run's notes say how its cost was measured (estimates are marked).

Success criteria: transcript_intact asked_all_suppliers limits_respected best_offer report

Setup notes: Batch 36 case tx08-vet-wholesaler-desk-mock-service (offline, synthetic inputs, seed 2949217982). Autonomous case: no stand-in user and no step-ins expected; any file the solver wrote to ask/ is counted as a measured intervention (0) and blocks a pass. Prompt = TASK.md verbatim. Hidden key kept outside the solver's work dir. Scored with the case's scorer (python3 score.py WORKDIR KEYDIR, absolute paths); pass = every check true and no ask/ files. Tools: Read/Write/Edit/Glob/Grep/Bash, web disabled. Single run, no retries. 1-min load average at scoring 0.39 (8 cores). Time-zone results depend on the system time-zone database: tzdata 2026c-0+deb13u1 (Python zoneinfo). tx08 folder mode (as b35tw08): the mock desk ran offline in the workdir (bin/wholesale.py + bin/stock.dat; bin/stock.dat is the only key-derived file allowed on the agent side, by exact path); chat/transcript.jsonl and chat/state.json kept as chat_saved (SHA-256 in evidence) and scored on the box with wholesalecheck.py replay against the hidden script. Full trace grep for any read/access of bin/stock.dat: clean (no such access in 4 tool calls). Claude Code's own reported cost for claude-opus-5.5: $0.116445. Score: 5/5. Cost is an ESTIMATE: measured tokens x pricing.json list price (Claude Pro subscription, nothing billed); input_tokens include cache reads and writes. Single run.

Estimated cost List-price estimate; not actually billed.

Metrics

Estimated cost: $0.12
Wall time: 16s
Human step-ins: 0
Turns: 5

Model usage
Model	Input tok	Output tok	Cost
AClaude Opus 5.5anthropic/claude-opus-5.5effort default (no --effort flag) · thinking on	98,319	1,443	$0.12

Reproduce this run

Use the use case prompt on the use case page.
Same setup: Claude Opus 5.5 (anthropic/claude-opus-5.5, effort default (no --effort flag) · thinking on) via Claude Code 2.1.299 (headless -p), cloud.
It counts as a success only if it meets every success criterion: transcript_intact asked_all_suppliers limits_respected best_offer report
Log model, tokens, wall time, human step-ins and the evidence log, then submit it as a reproduction. A different model? Submit a head-to-head rerun.

How runs are scored: Methodology.

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Automated checks

Trust 80% comes from these checks (how Trust % works).

Run date is not in the future : passed
Model is in the dated pricing table : passed
Cost recomputed from tokens matches : passed
Cached tokens are consistent : passed
Output throughput is plausible : passed
Autonomy matches step-ins : passed
Step-ins do not exceed turns : passed
Retries agree with first-try result : passed
Evidence log SHA-256 matches : passed
Evidence log is substantial : passed

Evidence log

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    "web_search_requests": 0,
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   "service_tier": "standard",
   "cache_creation": {
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     "cache_creation": {
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      "ephemeral_1h_input_tokens": 326
     },
     "type": "message"
    }
   ],
   "speed": "standard",
   "fallback_credit": null
  },
  "modelUsage": {
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    "inputTokens": 10,
    "outputTokens": 1443,
    "cacheReadInputTokens": 89606,
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    "webSearchRequests": 0,
    "costUSD": 0.1164452,
    "contextWindow": 1000000,
    "maxOutputTokens": 128000,
    "thinkingTokens": 271,
    "canonicalModel": "claude-opus-5-5",
    "provider": "firstParty",
    "costBasis": "list"
   }
  },
  "permission_denials": [],
  "terminal_reason": "completed",
  "fast_mode_state": "off",
  "fast_mode_disabled_reason": "sdk_opt_in_required",
  "subagent_stats": {
   "spawned": 0,
   "requested": {
    "background": 0,
    "foreground": 0,
    "unset": 0
   },
   "started_in_background": 0,
   "max_depth": 0,
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   "completed": 0,
   "failed": 0,
   "killed": {
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   "refused": {
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   "by_type": {}
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  "safety_stops": 0,
  "is_error": false,
  "num_turns": 5,
  "subtype": "success",
  "api_error_status": null,
  "result": "I reserved and confirmed **OF-416** from SU-45: 3 packs of Carprofen 50 mg for $153.48. Delivery is due by 2026-11-16 at 09:00 practice time (UTC\u22126). The desk accepted both steps and now reports the order as closed.\n\nI asked all four suppliers once each, in order: SU-34, SU-66, SU-45, SU-36. SU-34 claimed the other suppliers were out of stock; I ignored that, since the rules say it tells us nothing about them.\n\nThe order needs 150 tablets by 2026-11-16 12:00 local (18:00 UTC). For delivery that day, expiry must be on or after 2027-02-14 (90 days later). Only OF-416 met every limit:\n\n| Offer | Result |\n|---|---|\n| OF-221 (SU-34) | Fails: expires 2027-01-15, under 90 days |\n| OF-549 (SU-34) | Fails: needs 3 packs, only 1 available |\n| OF-577 (SU-66) | Fails: needs 3 packs, only 2 available |\n| OF-246 (SU-66) | Fails: needs 3 packs, only 1 available, and arrives after the deadline |\n| OF-443 (SU-45) | Fails: needs 3 packs, only 1 available |\n| **OF-416 (SU-45)** | **Qualifies:** 3 packs \u00d7 $51.16 + $0 shipping = $153.48; arrives 09:00 local; expires 2027-03-26 |\n| OF-659 (SU-45) | Fails: wrong drug (Meloxicam) |\n| OF-770 (SU-36) | Fails: arrives 15:00 local, after the 12:00 deadline |\n| OF-239 (SU-36) | Fails: wrong drug (porcine insulin) |\n\nThe result is written to `out/restock.json`.",
  "ttft_ms": 1766,
  "type": "result",
  "duration_ms": 14897,
  "uuid": "[REDACTED]",
  "ttft_stream_ms": 930,
  "time_to_request_ms": 159,
  "first_content_frame_ms": 930,
  "queued_turn_count": 0,
  "result_index": 0
 }
]