RunOpus 5.5repeat 2
Plan-execute on Rebook onto the earliest available flight and settle the difference
claude-opus-5-5__plan-execute__airline-medium__r2
Score
1.000
- Cost
- $0.104
- Latency
- 32.0s
- setup 0.0s, grading 0.0s
- Turns
- 12
- Tool calls
- 9
- Subagents
- 0
- Tokens in / out
- 50k / 2.4k
- 41,537 read from cache
Did the design run?
- 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.planThe planner’s reply was read through its schema and held at least one step.
- Each call was shown the right tools: heldplan-execute.toolsThe planner was shown no tools and the executor the task’s full toolset.
Phases
Drawn from the phase records: timing and cost per call, no tool calls or messages.
| Phase | Duration | Cost | Turns | Tools | Model |
|---|---|---|---|---|---|
| Plan | 11.0s | $0.025 | 2 | 0 | claude-opus-5-5 |
| Execute | 21.0s | $0.080 | 10 | 9 | 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 plan-execute --tasks airline-medium --models claude-opus-5-5 --repeats 1
Score breakdown
- passReservation moved to the earliest flight with an available seat, same cabin1.00weight 0.43
booked on AA204, expected AA204
- passExactly one fee, the fare difference for the flight actually booked1.00weight 0.43
fare difference owed on the booked flight: 8000 cents
- passExactly one economy seat moved from the old flight to the new one1.00weight 0.14
Penalties
No penalties were applied.
Scorer metadata
- tool calls
- 9
- failed tool calls
- 0
- distinct tools
- 9
Final answer
Dana Whitfield (R2087) is now on AA204, leaving SFO at 09:05 on 2026-08-03 for ORD. She stays in economy and owes $80.00, which I've charged.
Choosing the flight:
- UA88, 06:15: has no economy seats left.
- AA918, 07:30: cancelled.
- AA204, 09:05: the earliest flight that is still scheduled and has economy seats (4 left). I checked it again just before moving her.
She was on AA210 at 17:40, and her cabin hasn't changed.
What she owes:
- Change fee: $0. The usual $75.00 economy change fee is waived because she has gold status.
- Fare difference: $80.00. AA204 economy costs $390.00 and she paid $310.00. The fare rules say no tier is exempt from a fare difference, so the full amount is collected. I recorded it as one fare_difference charge on the ledger (entry L1). The ledger had no earlier entries.
Nothing else was changed.
Date conflict: the plan said today is 2026-10-06, which is after the flight. The airline system gives today as 2026-07-28, and the flight is still scheduled, so I treated the flight as upcoming and made the change.
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.