ScaffoldBench

RunHaiku 4.5repeat 2

Single on Add checked bags and collect the right fee

claude-haiku-4-5-20251001__single__airline-easy__r2

Score

1.000

passed
design ran as designed
Cost
$0.026
Latency
17.6s
setup 0.0s, grading 0.0s
Turns
6
Tool calls
5
Subagents
0
Tokens in / out
21k / 1.6k
9,773 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.
  • Each call was shown the right tools: heldsingle.toolsThe agent was shown exactly the task’s tools, none missing and none extra.

Phases

Main: 0.0s to 17.6s, finished, 5 tool calls, $0.026

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

PhaseDurationCostTurnsToolsModel
Main17.6s$0.02665claude-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 single --tasks airline-easy --models claude-haiku-4-5-20251001 --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
5
failed tool calls
0
distinct tools
5

Final answer

Perfect! I have successfully completed the task. Here's a summary:

Task Completed for Rosa Mendel (R1042)

Baggage Update:

  • Added 2 checked bags to the reservation
  • Total checked bags: now 3 (up from 1)

Baggage Fee Calculation:

  • Rosa's free allowance: 2 bags (1 for economy cabin + 1 for silver frequent-flyer tier)
  • Chargeable bags: 1 (third bag beyond free allowance)
  • Fee charged: $45.00

Rosa now owes exactly $45.00 for the additional baggage. Her reservation has been updated and the charge has been recorded in the ledger.

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.