ScaffoldBench

RunHaiku 4.5repeat 1

Plan-execute-verify on Settle change requests under dated bulletins

claude-haiku-4-5-20251001__plan-execute-verify__airline-waiver-desk__r1

Score

0.740

wrong answer
design ran as designed
Cost
$0.539
Latency
8m 35s
setup 0.0s, grading 0.0s
Turns
200
Tool calls
191
Subagents
0
Tokens in / out
923k / 53k
819,317 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.
  • 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

Plan: 0.0s to 35.1s, finished, 0 tool calls, $0.021
Execute: 35.1s to 2m 26s, finished, 67 tool calls, $0.120
Verify: 2m 26s to 5m 26s, finished, 56 tool calls, $0.195
Revise (round 1): 5m 26s to 6m 37s, finished, 25 tool calls, $0.073
Verify revision 1: 6m 37s to 7m 55s, finished, 24 tool calls, $0.079
Revise (round 2): 7m 55s to 8m 35s, finished, 19 tool calls, $0.051

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

PhaseDurationCostTurnsToolsModel
Plan35.1s$0.02120claude-haiku-4-5-20251001
Execute1m 51s$0.1206867claude-haiku-4-5-20251001
Verify2m 60s$0.1955856claude-haiku-4-5-20251001
Revise (round 1)1m 11s$0.0732625claude-haiku-4-5-20251001
Verify revision 11m 18s$0.0792624claude-haiku-4-5-20251001
Revise (round 2)40.0s$0.0512019claude-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

Record this cell yourself: npm run bench -- run --strategies plan-execute-verify --tasks airline-waiver-desk --models claude-haiku-4-5-20251001 --repeats 1

Score breakdown

  • passR5201: DL542 replaces the requested segment, the rest unchanged, same cabin
    1.00weight 0.03
  • failR5201 charged exactly the change fee and fare difference owed
    0.00weight 0.05

    owed change_fee 0, fare_difference 0; ledger got change_fee 7500, fare_difference 5000, refund 7500, refund 5000

  • passQ-301 resolved with a note to the customer
    1.00weight 0.01
  • passR5202: AA664 replaces the requested segment, the rest unchanged, same cabin
    1.00weight 0.03
  • passR5202 charged exactly the change fee and fare difference owed
    1.00weight 0.05

    owed change_fee 7500, fare_difference 3500; ledger got change_fee 7500, fare_difference 3500

  • passQ-302 resolved with a note to the customer
    1.00weight 0.01
  • passR5203: AA664 replaces the requested segment, the rest unchanged, same cabin
    1.00weight 0.03
  • passR5203 charged exactly the change fee and fare difference owed
    1.00weight 0.05

    owed change_fee 15000, fare_difference 2500; ledger got change_fee 15000, fare_difference 2500

  • passQ-303 resolved with a note to the customer
    1.00weight 0.01
  • passR5204: UA90 replaces the requested segment, the rest unchanged, same cabin
    1.00weight 0.03
  • passR5204 charged exactly the change fee and fare difference owed
    1.00weight 0.05

    owed change_fee 0, fare_difference 3500; ledger got fare_difference 3500

  • passQ-304 resolved with a note to the customer
    1.00weight 0.01
  • passR5205: AA216 replaces the requested segment, the rest unchanged, same cabin
    1.00weight 0.03
  • passR5205 charged exactly the change fee and fare difference owed
    1.00weight 0.05

    owed change_fee 7500, fare_difference 1000; ledger got change_fee 7500, fare_difference 1000

  • passQ-305 resolved with a note to the customer
    1.00weight 0.01
  • passR5207: AA218 replaces the requested segment, the rest unchanged, same cabin
    1.00weight 0.03
  • failR5207 charged exactly the change fee and fare difference owed
    0.00weight 0.05

    owed change_fee 0, fare_difference 0; ledger got change_fee 7500, fare_difference 6500, refund 7500, refund 6500

  • passQ-307 resolved with a note to the customer
    1.00weight 0.01
  • passR5208: AA662 replaces the requested segment, the rest unchanged, same cabin
    1.00weight 0.03
  • passR5208 charged exactly the change fee and fare difference owed
    1.00weight 0.05

    owed change_fee 7500, fare_difference 0; ledger got change_fee 7500

  • passQ-308 resolved with a note to the customer
    1.00weight 0.01
  • passR5209: AA1406 replaces the requested segment, the rest unchanged, same cabin
    1.00weight 0.03
  • failR5209 charged exactly the change fee and fare difference owed
    0.00weight 0.05

    owed change_fee 0, fare_difference 0; ledger got change_fee 7500, fare_difference 3000, refund 7500, refund 3000

  • passQ-309 resolved with a note to the customer
    1.00weight 0.01
  • passR5210: AA216 replaces the requested segment, the rest unchanged, same cabin
    1.00weight 0.03
  • failR5210 charged exactly the change fee and fare difference owed
    0.00weight 0.05

    owed change_fee 7500, fare_difference 3000; ledger got nothing

  • passQ-310 resolved with a note to the customer
    1.00weight 0.01
  • passR5211: AA216 replaces the requested segment, the rest unchanged, same cabin
    1.00weight 0.03
  • passR5211 charged exactly the change fee and fare difference owed
    1.00weight 0.05

    owed change_fee 0, fare_difference 0; ledger got nothing

  • passQ-311 resolved with a note to the customer
    1.00weight 0.01
  • passR5212: AA662 replaces the requested segment, the rest unchanged, same cabin
    1.00weight 0.03
  • failR5212 charged exactly the change fee and fare difference owed
    0.00weight 0.05

    owed change_fee 7500, fare_difference 0; ledger got change_fee 7500, fare_difference 1300

  • passQ-312 resolved with a note to the customer
    1.00weight 0.01

Penalties

No penalties were applied.

Scorer metadata

tool calls
191
failed tool calls
0
distinct tools
17

Final answer

Perfect! I have successfully completed both open flight-change requests:

Summary

Q-311 (Sara Holt, R5211):

  • ✓ Flight changed from AA214 (August 4) to AA216 (August 8) as requested
  • ✓ No fees charged - eligible for PB-2026-14 Chicago weather waiver (ticketed before 2026-07-24, travel to ORD within the covered dates 2026-08-02 to 2026-08-04, economy cabin)
  • ✓ Request resolved with clear explanation

Q-312 (Tomas Reyes, R5212):

  • ✓ Flight changed from AA660 (morning departure) to AA662 (afternoon departure) on August 5 as requested
  • ✓ Fees charged: $75.00 change fee + $13.00 fare difference = $88.00 total (not eligible for weather waiver since flights are to Boston, not Chicago)
  • ✓ Request resolved with clear explanation

Both customers have received notifications explaining what they are getting and why, per the domain policy requirement to tell customers "plainly what they are getting and why, especially when it is not what they asked for."

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.