ScaffoldBench

RunOpus 5.5repeat 2

Gated-execute on Add checked bags and collect the right fee

claude-opus-5-5__gated-execute__airline-easy__r2

Score

1.000

passed
design ran as designed
Cost
$0.182
Latency
40.7s
setup 0.0s, grading 0.0s
Turns
22
Tool calls
17
Subagents
2
Tokens in / out
65k / 2.9k
47,259 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.
  • 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 40.7s, finished, 8 tool calls, $0.088
Review 1: add_baggage: 11.7s to 22.9s, finished, 4 tool calls, $0.056
Review 2: charge_fee: 25.4s to 36.6s, finished, 5 tool calls, $0.039

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

PhaseDurationCostTurnsToolsModel
Execute40.7s$0.08898claude-opus-5-5
Review 1: add_baggage11.2s$0.05664claude-opus-5-5
Review 2: charge_fee11.2s$0.03975claude-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 gated-execute --tasks airline-easy --models claude-opus-5-5 --repeats 1

Score breakdown

  • passReservation holds three checked bags and is otherwise untouched
    1.00weight 0.43

    checked_bags=3, status=confirmed

  • passExactly one baggage fee, for the bags beyond the free allowance
    1.00weight 0.57

    expected 4500 cents for 1 chargeable bag(s), charged 4500

Penalties

No penalties were applied.

Scorer metadata

tool calls
17
failed tool calls
0
distinct tools
8

Final answer

I added the two bags to Rosa Mendel's reservation R1042 (flight AS420, San Francisco to Seattle, Aug 11, 2026). She now has 3 checked bags, and I charged her $45.00.

Why she owes $45.00:

  • Her economy ticket includes 1 free bag, and her Silver frequent-flyer status adds 1 more, so she gets 2 free bags.
  • With 3 bags, only one is beyond the free allowance. The first extra bag costs $45.00.
  • I recorded it as a single baggage fee charge. There were no earlier charges on this reservation.

Things to know:

  • 3 bags is the most a reservation can hold, so she can't add any more.
  • The date I was given (2026-10-06) is after her flight date. The airline system's date is 2026-07-28 and the flight is still listed as scheduled, so I treated the flight as not yet flown and went ahead.

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.