ScaffoldBench

RunHaiku 4.5repeat 1

Propose-select on Cancel a fare the customer wrongly believes is refundable to their card

claude-haiku-4-5-20251001__propose-select__airline-hard__r1

Score

1.000

passed
design ran as designed
Cost
$0.199
Latency
2m 21s
setup 0.0s, grading 0.0s
Turns
25
Tool calls
18
Subagents
3
Tokens in / out
104k / 20k
42,797 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.
  • All three proposers ran: heldpropose-select.proposalsThree proposers ran in parallel, each from its own angle, and none was starved while another ran.
  • The selector chose: heldpropose-select.selectionThe selector picked a proposal by a valid number, read from its schema reply and not a default.
  • Each call was shown the right tools: heldpropose-select.toolsEach proposer was shown the read-only tools, the selector none, and the executor the full toolset.

The run, call by call

80 recorded events, folded into 41

5 calls · 2m 21s · $0.199

  • tool call
  • denied by the guard
  • tool returned an error
  • shown no tools (reasoning only)
  • lost its tools (server failed)
  • failed

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
18
failed tool calls
0
distinct tools
6

Final answer

Summary

I have cancelled reservation R3311 and settled it according to airline rules. However, Marcus is receiving $248 in travel credit, not a cash refund to his card—here's why:

The refund rules state:

  • Trip insurance does not provide cash refunds for cancellations made within 14 days of departure
  • Marcus cancelled only 8 days before his 2026-08-05 departure
  • Therefore, per Rule 3 of the refund policy, the trip insurance converts the $248 fare into travel credit instead of returning it to the card
  • The $50 cancellation service fee is waived because Marcus holds platinum frequent-flyer status

What Marcus gets:

  • ✅ $248.00 in travel credit (for future flights)
  • ✅ No cancellation service fee charged
  • ✗ No cash back to his card (trip insurance window requires 14+ days before departure)

Ledger entry: Travel credit of $248.00 issued via L1

Marcus needs to be informed that while his trip insurance protects his booking, it only provides cash refunds if the cancellation is made at least 14 days before departure. His credit can be used for future travel with the airline.

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.