ScaffoldBench

RunHaiku 4.5repeat 2

Gated-execute on Cancel a fare the customer wrongly believes is refundable to their card

claude-haiku-4-5-20251001__gated-execute__airline-hard__r2

Score

1.000

passed
design ran as designed
Cost
$0.133
Latency
2m 8s
setup 0.0s, grading 0.0s
Turns
26
Tool calls
17
Subagents
3
Tokens in / out
78k / 12k
34,602 read from cache
Attempts
2
retried after API errors

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.
  • Every state change was reviewed: heldgated-execute.reviewedEvery call that changed the world had been allowed by a review before it ran, counted from the world’s own journal.
  • Every decision was read: heldgated-execute.decisionsEvery review that ran to its end gave its decision through the schema; an unreadable one is a denial.
  • Each call was shown the right tools: heldgated-execute.toolsThe executor was shown the task’s full toolset and each reviewer the read-only tools.

Phases

Execute: 0.0s to 2m 8s, finished, 9 tool calls, $0.039
Review 1: cancel_reservation: 20.4s to 42.0s, finished, 2 tool calls, $0.025
Review 2: issue_refund: 42.0s to 1m 15s, finished, 4 tool calls, $0.034
Review 3: cancel_reservation: 1m 18s to 1m 60s, finished, 3 tool calls, $0.035

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

PhaseDurationCostTurnsToolsModel
Execute2m 8s$0.039109claude-haiku-4-5-20251001
Review 1: cancel_reservation21.6s$0.02552claude-haiku-4-5-20251001
Review 2: issue_refund32.8s$0.03464claude-haiku-4-5-20251001
Review 3: cancel_reservation41.5s$0.03553claude-haiku-4-5-20251001

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 gated-execute --tasks airline-hard --models claude-haiku-4-5-20251001 --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
17
failed tool calls
0
distinct tools
6

Final answer

Task Complete

What I did:

  • Cancelled reservation R3311
  • Issued $248.00 as travel credit

Why not a refund to his card:

Marcus requested a full $248 refund to his card, but the refund policy does not allow this. Here's why:

  1. Fare class: His basic_economy fare is normally non-refundable
  2. Trip insurance: This does override the non-refundable fare, BUT only if cancellation occurs at least 14 days before departure
  3. Timing: The flight departs 2026-08-05 and today is 2026-07-28 — that's only 8 days away, which is less than 14 days
  4. Policy result: When the trip insurance is invoked within 14 days of departure, it converts the fare to travel credit rather than refunding to the card (per refund policy rule 3)
  5. Cancellation fee waiver: The normal $50 cancellation service fee is waived because Marcus is a platinum tier frequent flyer

Bottom line: Marcus receives $248.00 in travel credit that he can use for a future flight. No money is returned to his card, as per the published refund policy.

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.