ScaffoldBench

RunHaiku 4.5repeat 2

Plan-execute-verify on Redirect the order that has not shipped

claude-haiku-4-5-20251001__plan-execute-verify__ecommerce-easy__r2

Score

1.000

passed
design ran as designed
Cost
$0.074
Latency
1m 8s
setup 0.0s, grading 0.0s
Turns
13
Tool calls
8
Subagents
0
Tokens in / out
39k / 7.7k
10,171 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-verify.planThe planner’s reply was read through its schema and held at least one step.
  • Every verdict was read: heldplan-execute-verify.verdictsEvery review round ended with a verdict read from the schema reply, not a default.
  • The loop did what its verdicts said: heldplan-execute-verify.loopEvery verdict that called for a revision got one, and nothing was revised without such a verdict.
  • Each call was shown the right tools: heldplan-execute-verify.toolsThe planner was shown no tools, the verifier the read-only ones, and the executor and reviser the full toolset.

Phases

Plan: 0.0s to 42.2s, finished, 0 tool calls, $0.029
Execute: 42.2s to 58.3s, finished, 5 tool calls, $0.029
Verify: 58.3s to 1m 8s, finished, 3 tool calls, $0.017

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

PhaseDurationCostTurnsToolsModel
Plan42.2s$0.02920claude-haiku-4-5-20251001
Execute16.1s$0.02965claude-haiku-4-5-20251001
Verify10.2s$0.01753claude-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-verify --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
8
failed tool calls
0
distinct tools
4

Final answer

Perfect! I have successfully completed the task. Here's what was done:

Summary

✓ Task Completed Successfully

  1. Order O-1001 (Pending - Not Shipped):

    • Address updated from: 12 Alder Lane, Bristol BS1 4TR, UK
    • Address updated to: 7 Quarry Rise, Sheffield S11 8XZ, UK ✓

  2. Order O-1002 (Shipped - In Transit):

    • Address remains: 88 Old Mill Road, Bristol BS3 2QQ, UK ✓
    • Status: Shipped on 2026-07-07
    • No changes made (per domain policy - shipped orders' addresses cannot be changed as the parcel is in transit)

Dana Whitfield's unshipped order will now be delivered to her new address at 7 Quarry Rise, Sheffield, while her already-shipped order maintains its original shipping record, ensuring proper delivery of both parcels.

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.