Claude Sonnet 5.5 (effort default (no --effort flag) · thinking on) on Invoice an HVAC contractor's service calls from quarter-hour labour, after-hours rates, refrigerant by weight and maintenance-agreement terms

AClaude Sonnet 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: $0.06
Wall time: 11s
Human step-ins: 0
Outcome: Pass

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Exact prompt

# Invoice an HVAC contractor's service calls from quarter-hour labour, after-hours rates, refrigerant by weight and maintenance-agreement terms Inputs: `service-calls.csv` (call_id, customer_id, arrive, depart, refrigerant, refrigerant_oz, parts_cost; arrive and depart are local date-times), `customers.csv` (customer_id, zone, agreement) and `rates.json`. All customers and calls are synthetic; amounts are in dollars. These rules are the contractor's price list; where `dispatcher-note.txt` disagrees, the rules win. Rules: - Hours: billable hours = depart − arrive, rounded up to the next quarter hour, and never less than minimum_hours. - After hours: a call that arrives before business_start or at or after business_end (local time), or on a Saturday or Sunday, is billed at labour_rate × after_hours_multiplier for all its hours; any other call at labour_rate. Labour = billable hours × that rate. - Refrigerant: refrigerant_oz / 16 pounds (16 oz = 1 lb, not rounded) × the per-lb price of that refrigerant, rounded half-up to the cent; 0 when no refrigerant was added. - Agreement: a customer with agreement yes pays no trip charge and gets agreement_parts_pct percent off parts_cost (the discount rounded half-up to the cent); any other customer pays the trip charge for its zone and the full parts_cost. - Tax: tax_pct percent of (parts after any discount + refrigerant), rounded half-up to the cent per call; labour and trip charges are not taxed. Call total = labour + trip + refrigerant + parts + tax. - Write `out/service-invoices.json`: `{"calls": {"<call_id>": {"hours": <number>, "labour": <dollars>, "trip": <dollars>, "refrigerant": <dollars>, "parts": <dollars>, "tax": <dollars>, "total": <dollars>}, ...}, "customers": {"<customer_id>": <sum of its call totals>, ...}}`. ## 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 HVAC contractor's service calls. Time on site is billed in quarter hours rounded up with a one-hour minimum, calls that arrive outside business hours (including exactly at closing time and at weekends) take an after-hours multiplier, refrigerant is logged in ounces but priced per pound, maintenance-agreement customers skip the trip charge and get a parts discount, and only parts and refrigerant are taxed. A dispatcher note gets the rounding, closing-time, agreement and tax 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: billable_hours after_hours refrigerant agreement_terms call_totals customer_totals

Setup notes: Batch 38 case tz03-hvac-service-call-invoicing (offline, synthetic inputs, seed 166797585). 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 0.44 (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: $0.057343. 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: 11s
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	79,824	1,391	$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: billable_hours after_hours refrigerant agreement_terms call_totals customer_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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  "modelUsage": {
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  "permission_denials": [],
  "terminal_reason": "completed",
  "fast_mode_state": "off",
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  "subagent_stats": {
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  "subtype": "success",
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  "result": "I wrote `out/service-invoices.json` with all 8 calls and the totals for the two customers that have calls. I ran the script once and read the printed results. I didn't check them against anything else.\n\nCustomer totals:\n- **HC-4427:** $2,684.16\n- **HC-4409:** $2,647.01\n\nHC-4400 and HC-4418 are in `customers.csv` but have no calls, so they have no entry under `customers`.\n\nI followed the price-list rules and ignored `dispatcher-note.txt`, which contradicts them. The note says to round to the nearest quarter hour, treat a call starting at closing time as normal, charge agreement customers the trip fee, and tax the whole bill.\n\nCalls that start exactly at 16:30, such as SC-906, are billed at the after-hours rate. Calls that start exactly at 07:30, such as SC-907, are billed at the normal rate.",
  "ttft_ms": 1818,
  "type": "result",
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  "uuid": "[REDACTED]",
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  "time_to_request_ms": 168,
  "first_content_frame_ms": 884,
  "queued_turn_count": 0,
  "result_index": 0
 }
]