Claude Opus 5.5 (effort default (no --effort flag) · thinking on) on Price a pet-grooming salon's appointments by weight band and coat, with same-day multi-pet discounts, add-ons and matting time

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: $0.14
Wall time: 24s
Human step-ins: 0
Outcome: Pass

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Exact prompt

# Price a pet-grooming salon's appointments by weight band and coat, with same-day multi-pet discounts, add-ons and matting time Inputs: `appointments.csv` (appt_id, pet_id, groomer_id, date, addons, matting_min), `pets.csv` (pet_id, owner_id, name, weight_kg, coat), `owners.csv` (owner_id, name), `groomers.csv` (groomer_id, name) and `prices.json` (bands, coat_pct, addons, matting_per_15, multi_pet_pct). All owners, pets and groomers are synthetic; amounts are in dollars. These rules are the salon's policy; where `front-desk-note.txt` disagrees, the rules win. Rules: - Band: a pet's band is the first entry in bands whose max_kg is at least its weight_kg (null = no limit); base = the band's base plus coat_pct for the pet's coat, rounded half-up to the cent. - Same-day discount: when one owner has two or more appointments on the same date, each of them except the one with that owner's lowest appt_id that date gets multi_pet_pct off its base, rounded half-up to the cent; add-ons and matting are never discounted. - Extras: add-ons is a semicolon-separated list (blank = none), each charged at its addons price; matting is charged at matting_per_15 for each started 15 minutes of matting_min (0 = none); extras = add-ons + matting. - Write `out/grooming.json`: `{"appointments": {"<appt_id>": {"band": "<band>", "base": <dollars>, "discount": <dollars>, "extras": <dollars>, "total": <base − discount + extras>}, ...}, "owners": {"<owner_id>": <sum of the owner's appointment totals>, ...}, "groomers": {"<groomer_id>": <number of appointments>, ...}}`. `appointments` has one entry per row of appointments.csv. - Roll-ups: Owners in owners.csv with no appointments are left out. Groomers in groomers.csv with no appointments are included at 0. ## 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.

Price a synthetic grooming salon's appointments. Pets fall in weight bands (some weights sit exactly on a band limit), coats add a percent, owners with several pets in on the same day get a discount on all but their first appointment, and add-ons and matting time are extras. The prompt says owners with no appointments are left out and idle groomers are listed at 0. A front-desk note gets the discount, matting and roll-up rules wrong. 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: size_band same_day_discount extras owner_totals groomer_counts

Setup notes: Batch 39 case tk03-pet-grooming-invoices (offline, synthetic inputs, seed 3034118281). 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 0.75 (8 cores). Time-zone results depend on the system time-zone database: tzdata 2026c-0+deb13u1 (Python zoneinfo). Claude Code's own reported cost for claude-opus-5.5: $0.139701. 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: $0.14
Wall time: 24s
Human step-ins: 0
Turns: 4

Model usage
Model	Input tok	Output tok	Cost
AClaude Opus 5.5anthropic/claude-opus-5.5effort default (no --effort flag) · thinking on	80,254	2,311	$0.14

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: size_band same_day_discount extras owner_totals groomer_counts
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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    "canonicalModel": "claude-opus-5-5",
    "provider": "firstParty",
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  },
  "permission_denials": [],
  "terminal_reason": "completed",
  "fast_mode_state": "off",
  "fast_mode_disabled_reason": "sdk_opt_in_required",
  "subagent_stats": {
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  "result": "I wrote `out/grooming.json` with all 8 appointments from `appointments.csv`. I checked the same-day discount and the largest owner's total by hand, and both match.\n\n**Appointments:**\n\n| Appt | Band | Base | Discount | Extras | Total |\n|---|---|---|---|---|---|\n| AP-3031 | medium | 69.44 | 0 | 10.00 | 79.44 |\n| AP-3004 | large | 90.00 | 0 | 15.50 | 105.50 |\n| AP-3022 | medium | 80.60 | 0 | 54.00 | 134.60 |\n| AP-3012 | large | 90.00 | 0 | 32.00 | 122.00 |\n| AP-3017 | small | 42.00 | 0 | 15.50 | 57.50 |\n| AP-3036 | medium | 69.44 | 0 | 29.50 | 98.94 |\n| AP-3003 | medium | 80.60 | 0 | 30.00 | 110.60 |\n| AP-3025 | medium | 80.60 | 8.06 | 0.00 | 72.54 |\n\n**Owners:** OW-522 owes $443.02, OW-515 owes $227.50 and OW-501 owes $110.60. OW-508 and OW-529 had no appointments, so they're left out.\n\n**Groomers:** GR-20 has 4 appointments, GR-23 has 4 and GR-26 has 0.\n\n**Where the front-desk note was overruled:**\n- **Discount:** only one appointment gets it. OW-522 had two pets in on 2026-11-12, so AP-3025 got 10% off and AP-3017 (the lower ID) paid full price. On 2026-11-09 the two appointments belong to different owners, so neither is discounted. The note says everyone booked on a multi-pet day gets the discount.\n- **Matting:** each started 15 minutes is charged. 49 minutes is billed as 4 \u00d7 $8 and 34 minutes as 3 \u00d7 $8. The note says only full quarter hours count.\n- **Owners and groomers:** owners with no visits are left out and GR-26 is kept at 0. The note says the opposite for both.\n\nThe script is at `/tmp/gs/price.py`, outside `out/`.",
  "ttft_ms": 2866,
  "type": "result",
  "duration_ms": 23235,
  "uuid": "[REDACTED]",
  "ttft_stream_ms": 1854,
  "time_to_request_ms": 170,
  "first_content_frame_ms": 1856,
  "queued_turn_count": 0,
  "result_index": 0
 }
]