ScaffoldBench

RunSonnet 5.5repeat 2

Single on Cancel one line of a multi-line order

claude-sonnet-5-5__single__ecommerce-medium__r2

Score

1.000

passed
design ran as designed
Cost
$0.024
Latency
10.7s
setup 0.0s, grading 0.0s
Turns
6
Tool calls
5
Subagents
0
Tokens in / out
23k / 986
19,751 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 10.7s, finished, 5 tool calls, $0.024

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

PhaseDurationCostTurnsToolsModel
Main10.7s$0.02465claude-sonnet-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 single --tasks ecommerce-medium --models claude-sonnet-5-5 --repeats 1

Score breakdown

  • passThe mouse line is cancelled and refunded to the card for exactly what was paid
    1.00weight 0.38

    line L1: status=cancelled refundedCents=7350 method=card

  • passExactly the cancelled quantity went back into stock
    1.00weight 0.25

    P-MOU stock=32

  • passThe other lines of the order are still on their way
    1.00weight 0.25
  • passRead the order before changing it
    1.00weight 0.13

Penalties

No penalties were applied.

Scorer metadata

tool calls
5
failed tool calls
0
distinct tools
5

Final answer

I cancelled the wireless mouse line (L1) on order O-2003 and refunded it to Marcus's card. The other two lines are untouched and still pending.

  • Cancellation: L1 was 2 mice. Cancelling it was the only change to the order. The hub (L2) and cables (L3) remain pending, so they ship as planned.
  • Refund: I refunded 7,350 cents to the original card (RF-1). That is what he actually paid for the line, because the MOUSE25 discount brought it below the list price of 2 × 4,900. The order has now refunded 7,350 of 19,950 cents.
  • Stock: I put the 2 mice back, so P-MOU stock went from 30 to 32. The line was pending rather than backordered, so I treated the units as set aside for this order. The inventory log had no movements to confirm that.

Nothing conflicted with the task or the domain rules.

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.