RunHaiku 4.5repeat 1
Plan-execute-verify on Rebook onto the earliest available flight and settle the difference
claude-haiku-4-5-20251001__plan-execute-verify__airline-medium__r1
Score
1.000
- Cost
- $0.077
- Latency
- 1m 19s
- setup 0.0s, grading 0.0s
- Turns
- 18
- Tool calls
- 13
- Subagents
- 0
- Tokens in / out
- 54k / 7.7k
- 31,942 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-verify.planThe planner’s reply was read through its schema and held at least one step.
- Every verdict was read: heldplan-execute-verify.verdictsEvery review round ended with a verdict read from the schema reply, not a default.
- The loop did what its verdicts said: heldplan-execute-verify.loopEvery verdict that called for a revision got one, and nothing was revised without such a verdict.
- Each call was shown the right tools: heldplan-execute-verify.toolsThe planner was shown no tools, the verifier the read-only ones, and the executor and reviser the 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 | 34.7s | $0.020 | 2 | 0 | claude-haiku-4-5-20251001 |
| Execute | 22.0s | $0.029 | 8 | 7 | claude-haiku-4-5-20251001 |
| Verify | 22.4s | $0.027 | 8 | 6 | claude-haiku-4-5-20251001 |
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-verify --tasks airline-medium --models claude-haiku-4-5-20251001 --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
- 13
- failed tool calls
- 0
- distinct tools
- 8
Final answer
Task Complete!
I've successfully moved Dana Whitfield to the earliest available flight on 2026-08-03. Here's what was done:
Original Booking:
- Flight: AA210 (departure 17:40)
- Cabin: Economy
- Fare: $310.00
New Booking:
- Flight: AA204 (departure 09:05)
- Cabin: Economy (unchanged)
- Earliest available flight that day with available seats
Financial Settlement:
- Fare difference: $80.00 ($390.00 new fare - $310.00 original fare)
- Change fee: $0 (waived) — Dana is a gold tier frequent flyer, which exempts her from the $75 change fee
- Total due: $80.00
Dana has been moved forward 8 hours 35 minutes to an earlier departure and charged only the fare difference, with no change fee due to her elite frequent flyer status.
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.