ScaffoldBench

RunOpus 5.5repeat 2

Orchestrator-workers on Cancel a fare the customer wrongly believes is refundable to their card

claude-opus-5-5__orchestrator-workers__airline-hard__r2

Score

1.000

passed
design ran as designed
Cost
$0.104
Latency
37.1s
setup 0.0s, grading 0.0s
Turns
10
Tool calls
6
Subagents
1
Tokens in / out
36k / 2.9k
28,166 read from cache

Did the design run?

every check held
  • Run completed: heldharness.run-completedThe environment was built, the architecture returned and grading finished, none of them throwing.
  • No API failures: heldharness.apiNo model call failed at the API.
  • Every call ended: heldharness.calls-endedEvery call ended with a result, or was stopped by the run's own limits.
  • No harness tool denied: heldharness.harness-toolsThe sandbox guard never denied a harness tool, nor a tool the session itself offered.
  • Tool servers connected: heldharness.mcp-connectedEvery tool server the harness gave a call was connected when the session started.
  • No foreign tool servers: heldharness.mcp-hermeticNo call loaded a tool server the harness did not give it.
  • Builtin tools: heldharness.builtin-toolsA check recorded with the run.
  • Structured replies arrived: heldharness.structured-outputEvery call that asked for structured output and ran to the end got it.
  • No silent fallbacks: heldharness.not-degradedNo phase fell back on a default (an empty plan, a default winner) instead of its output.
  • The task was decomposed: heldorchestrator-workers.decompositionThe orchestrator’s reply was read through its schema and held at least one subtask.
  • The fan-out happened: heldorchestrator-workers.fan-outEvery subtask got a worker, every worker ran, and the recorded subagent count matches.
  • The synthesis wrote the answer: heldorchestrator-workers.synthesisThe final answer came from the synthesis call, not from a worker’s report standing in for it.
  • Each call was shown the right tools: heldorchestrator-workers.toolsThe orchestrator and the synthesis were shown no tools and every worker the task’s full toolset.

Phases

Decompose: 0.0s to 9.1s, finished, 0 tool calls, $0.022
Worker 1: all: 9.1s to 26.5s, finished, 6 tool calls, $0.053
Synthesize: 26.5s to 37.1s, finished, 0 tool calls, $0.029

Drawn from the phase records: timing and cost per call, no tool calls or messages.

PhaseDurationCostTurnsToolsModel
Decompose9.1s$0.02220claude-opus-5-5
Worker 1: all17.4s$0.05376claude-opus-5-5
Synthesize10.6s$0.02910claude-opus-5-5

The call-by-call replay is not published for this run. Traces are large, so the repository keeps 9 of this run set’s 900 and leaves the rest out; the score, phases and final answer on this page come from the committed run record.

Runs you can replay

Record this cell yourself: npm run bench -- run --strategies orchestrator-workers --tasks airline-hard --models claude-opus-5-5 --repeats 1

Score breakdown

  • passReservation is cancelled
    1.00weight 0.29
  • passSettled with exactly one ledger entry, in the right form and for the right amount
    1.00weight 0.57

    expected a single travel_credit entry of 24800 cents; ledger holds 1 entries

  • passThe cancelled seat went back into inventory
    1.00weight 0.14

Penalties

No penalties were applied.

Scorer metadata

tool calls
6
failed tool calls
0
distinct tools
6

Final answer

R3311 is cancelled. It was settled as $248.00 in travel credit, not as a refund to Marcus's card. One point below about the date should be confirmed before we tell Marcus anything.

Why it's credit and not a card refund

The worker checked the refund policy before moving any money and found:

  • Fare: R3311 is basic economy, which can't be refunded on its own. It was booked on 2026-04-11, so the 24-hour full-refund window has long passed.
  • Trip insurance: Marcus did buy it. It only pays back to the card if he cancels at least 14 days before departure. The refund policy tool gave today's date as 2026-07-28, and the flight (AA660, SFO→BOS) leaves 2026-08-05. That's 8 days out, so the policy settles the fare as travel credit.
  • Cancellation fee: The usual $50.00 fee is waived because Marcus is a platinum member. That's why the credit is the full $248.00.

What was done

  1. Read the reservation, refund policy, ledger (no prior entries) and Marcus's profile.
  2. Cancelled R3311 and released the seat.
  3. Recorded one ledger entry, L1, for $248.00 in travel credit. Nothing went back to the card.

No other bookings or records were changed.

Message for Marcus: You'll get the full $248, but as travel credit rather than back on your card. Your trip insurance only refunds to the card if you cancel at least 14 days before departure, and this cancellation came 8 days before the flight.

Unresolved: which date is today
The refund policy tool treated today as 2026-07-28. My environment, and the worker's, says it's 2026-10-06. The worker used the booking system's date because that system still showed the flight as scheduled. I can't confirm which date is right.

If today really is 2026-10-06, the 2026-08-05 flight has already left. In that case the cancellation, the travel credit and the 8-day reasoning may all be wrong. Please check the system date before confirming the outcome to Marcus.

Provenance of the numbers on this page

run set
scaffold-or-scale-v1
models
Haiku 4.5, Sonnet 5.5, Opus 5.5
effort
high
repeats
2
fixtures
replay
runs
900 / 900
strategy cost
$354.44
judge cost
$9.19
wall clock
9h 48m
git
fce5807b2d

Cost excludes judge calls, which are tracked separately so a scoring model never flatters or penalises an architecture. Every figure on this site is read from results/ at build time.