Claude Sonnet 5.5 (effort default (no --effort flag) · thinking on) on Invoice an auto repair shop's repair orders with labour rates, a parts markup matrix, core charges, warranty claims, shop supplies and tax

AClaude Sonnet 5.5default · thinking on · Claude Code 2.1.299 (headless -p) · cloud · 2026-10-24 · by @bobsiopener

Trust 80%Fully autonomoussuccess · first tryCompare

Estimated cost: $0.06
Wall time: 14s
Human step-ins: 0
Outcome: Pass

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Exact prompt

# Invoice an auto repair shop's repair orders with labour rates, a parts markup matrix, core charges, warranty claims, shop supplies and tax Inputs: `ro-lines.csv` (line_id, ro_id, kind, job_category, book_hours, part_no, qty, unit_cost, core_charge, core_returned, warranty) and `shop-rates.json` (labour_rates per job_category, warranty_rate, markup_matrix, supplies_pct, supplies_cap, tax_pct). All customers and vehicles are synthetic; amounts are in dollars. These rules are the shop's policy; where `front-desk-note.txt` disagrees, the rules win. Rules: - Labour: a labour line bills book_hours × the labour rate of its job_category, rounded half-up to the cent. - Parts: a part's unit price is unit_cost plus the pct of the first markup_matrix tier whose max_cost is at least unit_cost (max_cost null is the last tier), rounded half-up to the cent; the part line bills unit price × qty. - Cores: a part line with core_charge above 0 also bills core_charge × qty, unless core_returned is yes. - Warranty: a line with warranty yes bills nothing to the customer (no labour, part or core charge). It goes on the manufacturer claim instead: labour at book_hours × warranty_rate, parts at unit_cost × qty, each rounded half-up to the cent. - Shop supplies: supplies_pct percent of the repair order's customer labour, rounded half-up to the cent, but never more than supplies_cap. - Tax: tax_pct percent of the repair order's customer parts + cores + shop supplies, rounded half-up to the cent. Labour is not taxed. - Write `out/invoices.json`: `{"orders": {"<ro_id>": {"labour": <dollars>, "parts": <dollars>, "cores": <dollars>, "supplies": <dollars>, "tax": <dollars>, "total": <labour + parts + cores + supplies + tax>, "warranty_claim": <dollars>}, ...}, "warranty_claim_total": <dollars>}`. ## 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.

Invoice a synthetic repair shop's repair orders. Labour is billed by book hours at a rate per job category, parts are marked up by a cost-tier matrix with costs sitting exactly on the tier limits, unreturned cores are charged, warranty lines move to a manufacturer claim at different rates, shop supplies are a capped percentage of labour, and tax applies to parts, cores and supplies but not labour. A front-desk note gets the tier, tax, cap and warranty 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: labour parts_markup cores warranty supplies_and_tax invoice_totals

Setup notes: Batch 36 case tx02-auto-repair-order-invoicing (offline, synthetic inputs, seed 2963911147). 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 0.90 (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-sonnet-5.5: $0.060643. Score: 6/6. 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: $0.06
Wall time: 14s
Human step-ins: 0
Turns: 4

Model usage
Model	Input tok	Output tok	Cost
AClaude Sonnet 5.5anthropic/claude-sonnet-5.5effort default (no --effort flag) · thinking on	79,941	1,744	$0.06

Reproduce this run

Use the use case prompt on the use case page.
Same setup: Claude Sonnet 5.5 (anthropic/claude-sonnet-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: labour parts_markup cores warranty supplies_and_tax invoice_totals
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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  "result": "I wrote `out/invoices.json` with all five repair orders and the warranty claim total. I checked the output only by looking over the printed per-order figures. I didn't hand-check any line against the rules.\n\n| RO | Labour | Parts | Cores | Supplies | Tax | Total | Warranty claim |\n|---|---|---|---|---|---|---|---|\n| RO-6821 | 365.80 | 600.00 | 0.00 | 21.95 | 38.87 | 1,026.62 | 50.00 |\n| RO-6991 | 141.60 | 0.00 | 0.00 | 8.50 | 0.53 | 150.63 | 230.80 |\n| RO-6381 | 953.80 | 1,618.56 | 0.00 | 35.00 | 103.35 | 2,710.71 | 122.90 |\n| RO-6309 | 124.80 | 2,228.92 | 0.00 | 7.49 | 139.78 | 2,500.99 | 644.00 |\n| RO-6471 | 141.60 | 1,121.28 | 18.00 | 8.50 | 71.74 | 1,361.12 | 471.32 |\n\nI followed the policy rules and ignored `front-desk-note.txt` where it disagrees. A part costing exactly 50.00 therefore stays in the 60% tier, the shop supplies cap applies (RO-6381 hit it at 35.00), and labour is not taxed. Warranty lines stay off the customer invoice and go on the claim.\n\nOnly one order, RO-6471, ends up with a core charge. Every other core is either returned or sits on a warranty line.",
  "ttft_ms": 2052,
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 }
]