ScaffoldBench

RunHaiku 4.5repeat 2

Plan-execute on Redirect the order that has not shipped

claude-haiku-4-5-20251001__plan-execute__ecommerce-easy__r2

Score

1.000

passed
design ran as designed
Cost
$0.057
Latency
50.8s
setup 0.0s, grading 0.0s
Turns
10
Tool calls
6
Subagents
0
Tokens in / out
33k / 5.2k
14,721 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 plan was a plan: heldplan-execute.planThe planner’s reply was read through its schema and held at least one step.
  • Each call was shown the right tools: heldplan-execute.toolsThe planner was shown no tools and the executor the task’s full toolset.

Phases

Plan: 0.0s to 33.4s, finished, 0 tool calls, $0.031
Execute: 33.4s to 50.8s, finished, 6 tool calls, $0.026

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

PhaseDurationCostTurnsToolsModel
Plan33.4s$0.03130claude-haiku-4-5-20251001
Execute17.4s$0.02676claude-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 plan-execute --tasks ecommerce-easy --models claude-haiku-4-5-20251001 --repeats 1

Score breakdown

  • passThe order that has not shipped carries the new address
    1.00weight 0.43

    O-1001 address: 7 Quarry Rise, Sheffield S11 8XZ, UK

  • passThe edit did not spill onto the order already in transit
    1.00weight 0.29
  • passLooked up which order was still open before editing one
    1.00weight 0.14
  • passChecked the state of the order already in transit
    1.00weight 0.14

Penalties

No penalties were applied.

Scorer metadata

tool calls
6
failed tool calls
0
distinct tools
4

Final answer

Perfect! The task is complete. Here's what I did:

Summary

Customer Verified: Dana Whitfield (C-100) confirmed

Orders Identified:

  • O-1001 (pending/not shipped): Updated ✓
  • O-1002 (shipped/in transit): Verified unchanged ✓

Actions Taken:

  1. Updated the shipping address on order O-1001 from "12 Alder Lane, Bristol BS1 4TR, UK" to "7 Quarry Rise, Sheffield S11 8XZ, UK"
  2. Verified that order O-1002 (already shipped on 2026-07-07) retained its original address at "88 Old Mill Road, Bristol BS3 2QQ, UK"

Result: Dana's pending order will now ship to her new address, while her order already in transit will reach its intended destination with the correct shipping record, fully complying with the domain policy.

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.