ScaffoldBench

RunOpus 5.5repeat 2

Gated-execute on Settle a desk of returns by what actually came back

claude-opus-5-5__gated-execute__ecommerce-returns-desk__r2

Score

0.854

wrong answer
design ran as designed
Cost
$2.73
Latency
7m 58s
setup 0.0s, grading 0.0s
Turns
397
Tool calls
312
Subagents
42
Tokens in / out
1.4M / 42k
1,106,098 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.
  • Every state change was reviewed: heldgated-execute.reviewedEvery call that changed the world had been allowed by a review before it ran, counted from the world’s own journal.
  • Every decision was read: heldgated-execute.decisionsEvery review that ran to its end gave its decision through the schema; an unreadable one is a denial.
  • Each call was shown the right tools: heldgated-execute.toolsThe executor was shown the task’s full toolset and each reviewer the read-only tools.

Phases

Execute: 0.0s to 7m 58s, finished, 89 tool calls, $0.488
Review 1: refund_order: 44.5s to 54.9s, finished, 8 tool calls, $0.079
Review 2: refund_order: 54.9s to 1m 4s, finished, 6 tool calls, $0.041
Review 3: refund_order: 1m 4s to 1m 17s, finished, 8 tool calls, $0.049
Review 4: refund_order: 1m 17s to 1m 30s, finished, 9 tool calls, $0.055
Review 5: refund_order: 1m 30s to 1m 38s, finished, 7 tool calls, $0.046
Review 6: refund_order: 1m 38s to 1m 47s, finished, 6 tool calls, $0.046
Review 7: refund_order: 1m 47s to 1m 57s, finished, 6 tool calls, $0.045
Review 8: refund_order: 1m 57s to 2m 6s, finished, 6 tool calls, $0.050
Review 9: refund_order: 2m 9s to 2m 17s, finished, 5 tool calls, $0.042
Review 10: refund_order: 2m 17s to 2m 27s, finished, 5 tool calls, $0.044
Review 11: refund_order: 2m 27s to 2m 39s, finished, 7 tool calls, $0.054
Review 12: refund_order: 2m 39s to 2m 49s, finished, 6 tool calls, $0.048
Review 13: refund_order: 2m 49s to 3m 1s, finished, 8 tool calls, $0.061
Review 14: apply_store_credit: 3m 1s to 3m 8s, finished, 3 tool calls, $0.038
Review 15: apply_store_credit: 3m 8s to 3m 21s, finished, 7 tool calls, $0.059
Review 16: open_investigation: 3m 21s to 3m 30s, finished, 4 tool calls, $0.044
Review 17: restock_item: 3m 32s to 3m 48s, finished, 4 tool calls, $0.048
Review 18: restock_item: 3m 48s to 3m 56s, finished, 4 tool calls, $0.043
Review 19: restock_item: 3m 56s to 4m 4s, finished, 4 tool calls, $0.045
Review 20: restock_item: 4m 4s to 4m 11s, finished, 3 tool calls, $0.040
Review 21: restock_item: 4m 11s to 4m 19s, finished, 4 tool calls, $0.044
Review 22: restock_item: 4m 19s to 4m 27s, finished, 4 tool calls, $0.045
Review 23: restock_item: 4m 27s to 4m 36s, finished, 4 tool calls, $0.049
Review 24: restock_item: 4m 36s to 4m 45s, finished, 4 tool calls, $0.052
Review 25: restock_item: 4m 47s to 4m 56s, finished, 4 tool calls, $0.049
Review 26: restock_item: 4m 56s to 5m 7s, finished, 4 tool calls, $0.050
Review 27: restock_item: 5m 7s to 5m 16s, finished, 4 tool calls, $0.049
Review 28: restock_item: 5m 16s to 5m 24s, finished, 4 tool calls, $0.050
Review 29: restock_item: 5m 24s to 5m 33s, finished, 4 tool calls, $0.052
Review 30: restock_item: 5m 33s to 5m 41s, finished, 4 tool calls, $0.052
Review 31: close_return: 5m 44s to 5m 55s, finished, 6 tool calls, $0.065
Review 32: close_return: 5m 55s to 6m 5s, finished, 6 tool calls, $0.060
Review 33: close_return: 6m 5s to 6m 16s, finished, 7 tool calls, $0.068
Review 34: close_return: 6m 16s to 6m 29s, finished, 8 tool calls, $0.076
Review 35: close_return: 6m 29s to 6m 38s, finished, 6 tool calls, $0.062
Review 36: close_return: 6m 38s to 6m 47s, finished, 5 tool calls, $0.060
Review 37: close_return: 6m 47s to 6m 55s, finished, 3 tool calls, $0.051
Review 38: close_return: 6m 55s to 7m 4s, finished, 5 tool calls, $0.061
Review 39: close_return: 7m 6s to 7m 16s, finished, 5 tool calls, $0.063
Review 40: close_return: 7m 16s to 7m 27s, finished, 5 tool calls, $0.068
Review 41: close_return: 7m 27s to 7m 37s, finished, 5 tool calls, $0.066
Review 42: close_return: 7m 37s to 7m 48s, finished, 6 tool calls, $0.070

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

PhaseDurationCostTurnsToolsModel
Execute7m 58s$0.4889089claude-opus-5-5
Review 1: refund_order10.4s$0.079108claude-opus-5-5
Review 2: refund_order9.0s$0.04186claude-opus-5-5
Review 3: refund_order13.5s$0.049108claude-opus-5-5
Review 4: refund_order12.5s$0.055119claude-opus-5-5
Review 5: refund_order8.4s$0.04697claude-opus-5-5
Review 6: refund_order8.4s$0.04686claude-opus-5-5
Review 7: refund_order10.0s$0.04586claude-opus-5-5
Review 8: refund_order9.4s$0.05086claude-opus-5-5
Review 9: refund_order8.1s$0.04275claude-opus-5-5
Review 10: refund_order9.8s$0.04475claude-opus-5-5
Review 11: refund_order12.1s$0.05497claude-opus-5-5
Review 12: refund_order10.0s$0.04886claude-opus-5-5
Review 13: refund_order12.1s$0.061108claude-opus-5-5
Review 14: apply_store_credit7.0s$0.03853claude-opus-5-5
Review 15: apply_store_credit13.0s$0.05997claude-opus-5-5
Review 16: open_investigation8.8s$0.04464claude-opus-5-5
Review 17: restock_item15.8s$0.04864claude-opus-5-5
Review 18: restock_item8.2s$0.04364claude-opus-5-5
Review 19: restock_item7.6s$0.04564claude-opus-5-5
Review 20: restock_item6.5s$0.04053claude-opus-5-5
Review 21: restock_item8.1s$0.04464claude-opus-5-5
Review 22: restock_item8.1s$0.04564claude-opus-5-5
Review 23: restock_item9.5s$0.04964claude-opus-5-5
Review 24: restock_item8.6s$0.05264claude-opus-5-5
Review 25: restock_item8.8s$0.04964claude-opus-5-5
Review 26: restock_item11.2s$0.05064claude-opus-5-5
Review 27: restock_item8.8s$0.04964claude-opus-5-5
Review 28: restock_item8.3s$0.05064claude-opus-5-5
Review 29: restock_item8.6s$0.05264claude-opus-5-5
Review 30: restock_item8.3s$0.05264claude-opus-5-5
Review 31: close_return11.5s$0.06586claude-opus-5-5
Review 32: close_return10.0s$0.06086claude-opus-5-5
Review 33: close_return10.8s$0.06897claude-opus-5-5
Review 34: close_return12.6s$0.076108claude-opus-5-5
Review 35: close_return9.5s$0.06286claude-opus-5-5
Review 36: close_return8.8s$0.06075claude-opus-5-5
Review 37: close_return7.7s$0.05153claude-opus-5-5
Review 38: close_return9.1s$0.06175claude-opus-5-5
Review 39: close_return9.8s$0.06375claude-opus-5-5
Review 40: close_return11.7s$0.06875claude-opus-5-5
Review 41: close_return9.4s$0.06675claude-opus-5-5
Review 42: close_return11.5s$0.07086claude-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 gated-execute --tasks ecommerce-returns-desk --models claude-opus-5-5 --repeats 1

Score breakdown

  • passRMA-801: one refund of the right amount and method
    1.00weight 0.04

    expected 10965 card; got 10965 card

  • passRMA-801 left closed
    1.00weight 0.01
  • passRMA-802: one refund of the right amount and method
    1.00weight 0.04

    expected 15900 card; got 15900 card

  • passRMA-802 left closed
    1.00weight 0.01
  • passRMA-803: one refund of the right amount and method
    1.00weight 0.04

    expected 27965 store_credit; got 27965 store_credit

  • passRMA-803 left closed
    1.00weight 0.01
  • passRMA-804: one refund of the right amount and method
    1.00weight 0.04

    expected 27965 store_credit; got 27965 store_credit

  • passRMA-804 left closed
    1.00weight 0.01
  • passRMA-805: one refund of the right amount and method
    1.00weight 0.04

    expected 5520 card; got 5520 card

  • passRMA-805 left closed
    1.00weight 0.01
  • passRMA-806: one refund of the right amount and method
    1.00weight 0.04

    expected 7350 card; got 7350 card

  • passRMA-806 left closed
    1.00weight 0.01
  • failRMA-807: one refund of the right amount and method
    0.00weight 0.04

    expected 15900 card; got no refund

  • failRMA-807 left closed
    0.00weight 0.01
  • passRMA-808: investigation opened, nothing refunded
    1.00weight 0.04

    expected no refund; got no refund

  • passRMA-808 left investigating
    1.00weight 0.01
  • passRMA-809: one refund of the right amount and method
    1.00weight 0.04

    expected 3800 card; got 3800 card

  • passRMA-809 left open
    1.00weight 0.01
  • passRMA-810: one refund of the right amount and method
    1.00weight 0.04

    expected 9900 card; got 9900 card

  • passRMA-810 left closed
    1.00weight 0.01
  • passRMA-811: one refund of the right amount and method
    1.00weight 0.04

    expected 4900 card; got 4900 card

  • passRMA-811 left closed
    1.00weight 0.01
  • passRMA-812: one refund of the right amount and method
    1.00weight 0.04

    expected 21900 card; got 21900 card

  • passRMA-812 left closed
    1.00weight 0.01
  • passRMA-813: one refund of the right amount and method
    1.00weight 0.04

    expected 10965 card; got 10965 card

  • passRMA-813 left closed
    1.00weight 0.01
  • passRMA-814: one refund of the right amount and method
    1.00weight 0.04

    expected 31800 card; got 31800 card

  • passRMA-814 left closed
    1.00weight 0.01
  • passRMA-815: one refund of the right amount and method
    1.00weight 0.04

    expected 10965 card; got 10965 card

  • passRMA-815 left closed
    1.00weight 0.01
  • failRMA-816: one refund of the right amount and method
    0.00weight 0.04

    expected 4165 card; got no refund

  • failRMA-816 left closed
    0.00weight 0.01
  • passP-KEY returns restocked into the right buckets
    1.00weight 0.02

    sellable +3 damaged +1 (expected +3 / +1)

  • failP-HDP returns restocked into the right buckets
    0.00weight 0.02

    sellable +3 damaged +0 (expected +4 / +0)

  • passP-MON returns restocked into the right buckets
    1.00weight 0.02

    sellable +2 damaged +0 (expected +2 / +0)

  • passP-HUB returns restocked into the right buckets
    1.00weight 0.02

    sellable +1 damaged +0 (expected +1 / +0)

  • failP-MOU returns restocked into the right buckets
    0.00weight 0.02

    sellable +1 damaged +2 (expected +2 / +2)

  • passP-CAB returns restocked into the right buckets
    1.00weight 0.02

    sellable +1 damaged +1 (expected +1 / +1)

  • passP-DOC returns restocked into the right buckets
    1.00weight 0.02

    sellable +0 damaged +1 (expected +0 / +1)

  • passStore-credit balances moved by exactly the store-credit refunds owed
    1.00weight 0.02

Penalties

No penalties were applied.

Scorer metadata

tool calls
312
failed tool calls
0
distinct tools
14

Final answer

I worked through all 16 open returns. Twelve are refunded, restocked and closed. One is under investigation and three stay open because goods are still on the way. The system date is 2026-07-25, not the 2026-10-12 shown in my environment, so I measured every return window from the system date.

Closed (refunded, restocked by warehouse grade):

ReturnRefundNotes
RMA-801$109.65 cardChanged mind, 15% restocking fee
RMA-802$159.00 cardRequested 07-14, so no fee under the summer no-fee update (PU-21, 07-10 to 07-20)
RMA-803$279.65 store credit41 days after shipping, outside the 30-day window. The customer became gold on 07-15, after the 07-08 request, so the 45-day loyalty window (PU-18) doesn't apply. 15% fee
RMA-804$279.65 store creditStandard tier, outside the window. 15% fee
RMA-805$55.20 cardRequested 06-25, inside the peak-season update (PU-15), so the fee was 20%
RMA-806$73.50 cardDefective, 2 units, so no fee. Refund is the discounted price actually paid. Went to damaged stock
RMA-810$99.00 cardDefective, no fee. The line paid $129.00 and $30.00 was already refunded. Went to damaged stock
RMA-811$49.00 cardDamaged in transit, so no fee. Went back to sellable stock
RMA-812$219.00 cardDefective, 28 days after shipping so inside the window. Went to damaged stock
RMA-813$109.65 cardRequested exactly 30 days after shipping, which is still inside the window. 15% fee
RMA-814$318.00 cardBoth units received. Requested 07-17, so no fee under PU-21
RMA-815$109.65 card38 days after shipping, but the customer has been platinum since February, so the 45-day window applies. Requested 07-09, the day before PU-21 started, so the 15% fee applies

For the two store-credit refunds, I recorded each refund on the order and added the same amount to the customer's balance. C-803 now has $279.65 and C-804 has $291.65.

Not closed:

  • RMA-808 (under investigation): The customer was returning a monitor, but the warehouse received a cable. I refunded and restocked nothing.
  • RMA-809 (open): 2 of the 3 cables have arrived. I refunded $38.00 to card with no fee (PU-21), put one cable back in sellable stock and one in damaged stock. It stays open until the third cable arrives.
  • RMA-807 (open): The customer says tracking shows the parcel reached the warehouse on 07-23, but the warehouse has recorded no receipt. Nothing can be refunded until it does.
  • RMA-816 (open): Nothing has been received yet.

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.