ScaffoldBench

RunOpus 5.5repeat 1

Orchestrator-workers on Return an expired, partially shipped order

claude-opus-5-5__orchestrator-workers__ecommerce-hard__r1

Score

1.000

passed
design ran as designed
Cost
$0.130
Latency
49.2s
setup 0.0s, grading 0.0s
Turns
13
Tool calls
9
Subagents
1
Tokens in / out
39k / 3.8k
29,810 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 9.7s, finished, 0 tool calls, $0.022
Worker 1: all: 9.7s to 37.0s, finished, 9 tool calls, $0.074
Synthesize: 37.0s to 49.2s, finished, 0 tool calls, $0.034

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

PhaseDurationCostTurnsToolsModel
Decompose9.7s$0.02220claude-opus-5-5
Worker 1: all27.3s$0.074109claude-opus-5-5
Synthesize12.2s$0.03410claude-opus-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 orchestrator-workers --tasks ecommerce-hard --models claude-opus-5-5 --repeats 1

Score breakdown

  • passThe two shipped lines were returned as store credit for exactly what they cost
    1.00weight 0.27
  • passThe credit reached the customer balance, not just the ledger
    1.00weight 0.18

    storeCreditCents=55300

  • passThe line that never shipped was cancelled and refunded to the card
    1.00weight 0.27

    line L3: status=cancelled refundedCents=13800 method=card

  • passCancelled units were restocked and returned units were not
    1.00weight 0.18

    P-HUB=10 P-DOC=3 P-MON=5

  • passRead the return policy before issuing a refund
    1.00weight 0.09

Penalties

No penalties were applied.

Scorer metadata

tool calls
9
failed tool calls
0
distinct tools
8

Final answer

O-3001 is processed on the money side: Priya Raman (C-300) has been credited the full £686.00. Only £138.00 went back to her card. The other £548.00 is store credit, because the shipped items came back after the 30-day return window. The dock and monitor are not back in stock yet, since the warehouse has not received them.

What was on the order

  • L1 (dock, P-DOC, £219.00) and L2 (monitor, P-MON, £329.00) shipped on 2026-05-04.
  • L3 (2 × hub, P-HUB, £138.00) had not shipped.
  • The return policy allows 30 days from shipping. After that, a return is paid as store credit, not to the card. A line that never shipped is a cancellation and goes back to the card.

What was done

  1. L3 cancelled. £138.00 was refunded to her card (RF-1). The 2 hubs were put back into stock, taking P-HUB from 8 to 10.
  2. L1 and L2 returned. £548.00 was refunded as store credit (RF-2), which is exactly what she paid for those two lines. The same amount was added to her balance, which went from £5.00 to £553.00, so the store-credit refund is complete.
  3. Order record. O-3001 is marked "returned", with £686.00 of £686.00 refunded.

Still open or worth checking

  • Warehouse: 1 × P-DOC and 1 × P-MON need to go back into stock when the parcels actually arrive. The order says "returned", but the goods are not back yet.
  • Customer message: She asked for her money back, so someone should tell her that only £138.00 went to her card. The £548.00 is store credit because the window had closed.
  • Hub restock: The hubs were restocked because nothing showed L3 as backordered. The report did not confirm that stock had actually been set aside for that line. If L3 was in fact backordered, the +2 to P-HUB should be reversed.
  • Dates: The system tools gave today's date as 2026-07-25, but the session date is 2026-10-05. Either way the shipped lines are past the 30-day window, so the outcome is the same. The tool clock still looks wrong and may need checking.

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.