RunOpus 5.5repeat 2

Single on Return an expired, partially shipped order

claude-opus-5-5__single__ecommerce-hard__r2

Score

1.000

passed

design ran as designed

Cost: $0.077
Latency: 38.3s; setup 0.0s, grading 0.0s
Turns: 11
Tool calls: 10
Subagents: 0
Tokens in / out: 38k / 2.0k; 32,927 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.
Each call was shown the right tools: heldsingle.toolsThe agent was shown exactly the task’s tools, none missing and none extra.

Phases

Spend$0.077

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

Phase	Duration	Cost	Turns	Tools	Model
Main	38.3s	$0.077	11	10	claude-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

A gate that blocked the right moveGated-execute · Haiku 4.5
Three proposals beat one agentPropose-select · Haiku 4.5
A verifier that earned its keepPlan-execute-verify · Sonnet 5.5
A revision that did not helpPlan-execute-verify · Haiku 4.5
The control, missing a stepSingle · Haiku 4.5

Record this cell yourself: npm run bench -- run --strategies single --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: 10
failed tool calls: 0
distinct tools: 9

Final answer

I've processed the whole of order O-3001, and Priya has been refunded the full $686.00 she paid. Only part of it could go back to her card. The order is now marked as returned.

Why she can't get it all back on her card: L1 (P-DOC, $219.00) and L2 (P-MON, $329.00) shipped on 2026-05-04. The return policy counts its 30 days from the shipping date, and that window has closed. Today's date is given as 2026-10-06 in my context but 2026-07-25 by the store system. It's past 30 days either way, so the policy requires these two lines to be refunded as store credit, not to her card. L3 (2× P-HUB, $138.00) never shipped, so it counts as a cancellation and goes back to her card.

What I did:

Cancelled L3, the part that hadn't shipped.
Refunded $138.00 to her card for L3.
Put the 2 USB-C hubs back into stock (8 → 10). They never left the warehouse, and nothing on the order showed they were on backorder.
Recorded a $548.00 store-credit refund against the order for L1 and L2.
Added that $548.00 to her store-credit balance, which went from $5.00 to $553.00. The refund in step 4 doesn't change her balance by itself, so this step is what actually pays her.

Not done yet: I haven't restocked the dock (P-DOC) or the monitor (P-MON). Returned items only go back into stock when the warehouse receives them, so they should be restocked once her parcel arrives.

When you reply to Priya, it's worth explaining that $548.00 came back as store credit, not to her card, and why.

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.