ScaffoldBench

RunHaiku 4.5repeat 1

Orchestrator-workers on Rebook onto the earliest available flight and settle the difference

claude-haiku-4-5-20251001__orchestrator-workers__airline-medium__r1

Score

1.000

passed
design ran as designed
Cost
$0.054
Latency
56.2s
setup 0.0s, grading 0.0s
Turns
10
Tool calls
6
Subagents
1
Tokens in / out
34k / 5.5k
16,705 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 31.6s, finished, 0 tool calls, $0.018
Worker 1: all: 31.6s to 48.8s, finished, 6 tool calls, $0.029
Synthesize: 48.8s to 56.2s, finished, 0 tool calls, $0.0059

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

PhaseDurationCostTurnsToolsModel
Decompose31.6s$0.01820claude-haiku-4-5-20251001
Worker 1: all17.2s$0.02976claude-haiku-4-5-20251001
Synthesize7.4s$0.005910claude-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 orchestrator-workers --tasks airline-medium --models claude-haiku-4-5-20251001 --repeats 1

Score breakdown

  • passReservation moved to the earliest flight with an available seat, same cabin
    1.00weight 0.43

    booked on AA204, expected AA204

  • passExactly one fee, the fare difference for the flight actually booked
    1.00weight 0.43

    fare difference owed on the booked flight: 8000 cents

  • passExactly one economy seat moved from the old flight to the new one
    1.00weight 0.14

Penalties

No penalties were applied.

Scorer metadata

tool calls
6
failed tool calls
0
distinct tools
6

Final answer

Task Completion Summary

Based on the worker report, the task has been completed successfully.

What was done:

  • Dana Whitfield's reservation R2087 was moved from flight AA210 (17:40 departure) to flight AA204 (09:05 departure) on 2026-08-03, SFO to ORD
  • Both flights were in economy cabin, as originally booked
  • AA204 at 09:05 is the earliest departure that day with available seats in her cabin

Settlement:

  • The original fare was $310.00
  • The new flight fare is $390.00
  • Fare difference owed: $80.00
  • Change fee: $0.00 (waived due to Dana's gold tier frequent flyer status)
  • Total amount Dana owes: $80.00

Dana is now booked on the earliest available flight that day, and the fare difference has been recorded to her 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.