ScaffoldBench

RunSonnet 5.5repeat 1

Propose-select on Settle a desk of returns by what actually came back

claude-sonnet-5-5__propose-select__ecommerce-returns-desk__r1

Score

0.854

wrong answer
design ran as designed
Cost
$0.720
Latency
1m 54s
setup 0.0s, grading 0.0s
Turns
221
Tool calls
215
Subagents
3
Tokens in / out
377k / 31k
279,473 read from cache
Attempts
2
retried after API errors

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.
  • All three proposers ran: heldpropose-select.proposalsThree proposers ran in parallel, each from its own angle, and none was starved while another ran.
  • The selector chose: heldpropose-select.selectionThe selector picked a proposal by a valid number, read from its schema reply and not a default.
  • Each call was shown the right tools: heldpropose-select.toolsEach proposer was shown the read-only tools, the selector none, and the executor the full toolset.

Phases

Proposal 1 (policy-first): 0.0s to 37.8s, finished, 46 tool calls, $0.140
Proposal 2 (state-first): 0.0s to 41.2s, finished, 48 tool calls, $0.151
Proposal 3 (outcome-first): 0.0s to 44.0s, finished, 49 tool calls, $0.150
Select: 44.0s to 1m 1s, finished, 0 tool calls, $0.061
Execute: 1m 1s to 1m 54s, finished, 72 tool calls, $0.218

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

PhaseDurationCostTurnsToolsModel
Proposal 1 (policy-first)37.8s$0.1404746claude-sonnet-5-5
Proposal 2 (state-first)41.2s$0.1514948claude-sonnet-5-5
Proposal 3 (outcome-first)44.0s$0.1505049claude-sonnet-5-5
Select16.8s$0.06120claude-sonnet-5-5
Execute53.3s$0.2187372claude-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 propose-select --tasks ecommerce-returns-desk --models claude-sonnet-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
215
failed tool calls
1
distinct tools
14

Final answer

I settled 12 of the 16 open RMAs: 11 are closed, RMA-809 is refunded for the received units but still open, and RMA-808 is under investigation. RMA-807 and RMA-816 are untouched. I confirmed the plan against current orders, receipts, policy updates and customers before acting, and found no conflicts. I did not check the inbox, so no customer emails were sent.

Closed (refund and restock done)

  • RMA-801: 10,965 to card (15% fee, requested before the no-fee window). 1 P-KEY back to sellable stock.
  • RMA-802: 15,900 to card (no fee under PU-21). 1 P-HDP sellable.
  • RMA-803: 27,965 as store credit (15% fee). It shipped 41 days before the request, and C-803 only became gold on 07-15, so the 45-day window didn't apply. Recorded against the order and added to C-803's balance. 1 P-MON sellable.
  • RMA-804: 27,965 as store credit (15% fee). C-804 is standard tier. Recorded against the order and added to C-804's own balance, now 29,165. 1 P-MON sellable.
  • RMA-805: 5,520 to card (20% fee under PU-15). 1 P-HUB sellable.
  • RMA-806: 7,350 to card, which is what the discounted line paid. No fee. 2 P-MOU to the damaged bucket.
  • RMA-810: 9,900 to card (12,900 less the 3,000 already refunded). No fee. 1 P-KEY damaged.
  • RMA-811: 4,900 to card. No fee. 1 P-MOU sellable.
  • RMA-812: 21,900 to card. No fee. 1 P-DOC damaged.
  • RMA-813: 10,965 to card (15% fee). The request came exactly 30 days after shipping, which is inside the window. 1 P-KEY sellable.
  • RMA-814: 31,800 to card (no fee under PU-21). Both units received. 2 P-HDP sellable.
  • RMA-815: 10,965 to card (15% fee). It shipped 38 days before the request, but C-815 has been platinum since February, so the 45-day window under PU-18 applied. 1 P-KEY sellable.

Partly settled

  • RMA-809 (left open): it covers 3 cables and only 2 have arrived. I refunded 3,800 to card (2 × 1,900, no fee) and restocked 1 P-CAB sellable and 1 damaged. I did not close it because the third cable is still on its way.

Investigation

  • RMA-808: the warehouse received a P-CAB (graded wrong_item) against a P-MON return. I refunded and restocked nothing and opened investigation INV-1.

Untouched

  • RMA-807 and RMA-816: the warehouse has received nothing against either. Nothing is refunded or restocked, and both stay open.

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.