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02 — Run · Round 1 · Tokyo 1957: monster attack · jev-tokyo-s2

Jev Router plays Tokyo 1957

A monster attacks Tokyo in 1957. Rebuild and get the city score above 500 within 5 years. Ended Jan 1962: lost, city score 368.

GOAL MISSED seed 2
Jev Router
typesafe/jev-router

LOST: City score 368 (goal > 500); engine verdict: lost

Population (start → end)113,100 → 21,900 Peak population113,100City score (start → end)500 → 368 Funds at the end$0Crime / pollution / traffic18 / 54 / 4 Zones R / C / I132 / 92 / 79 Power plants (coal / nuclear)8 / 0Police / fire stations17 / 11 Turns (model / failed)20 (20 / 3) Actions applied / rejected53 / 0 Mean turn latency30.1sModel cost$0.647Wall clock10.1 min Jetty run IDd78fe456

The city over time

Population

People, after every turn

Funds

Treasury, after every turn

City score

0–1000, re-evaluated each January

Table view
TurnDatePopulationFundsCity scoreCrimePollution
0Jan 1957113,100$20,0005003163
1Apr 1957107,460$17,4896683163
2Jul 1957103,060$17,4896687365
3Oct 195798,120$15,9296686971
4Jan 195893,580$11,8696196971
5Apr 195887,940$11,8466195974
6Jul 195883,320$11,8466195667
7Oct 195877,240$11,8466195667
8Jan 195971,400$8,9034745266
9Apr 195965,320$8,8814744964
10Jul 195958,680$5,8054744962
11Oct 195952,420$5,7594744162
12Jan 196047,800$03893561
13Apr 196044,120$03893559
14Jul 196039,920$03893059
15Oct 196036,740$03892756
16Jan 196133,400$03752755
17Apr 196130,200$03752453
18Jul 196127,400$03752153
19Oct 196124,920$03752156
20Jan 196221,380$03681854

Final map

Final city map: Jev Router on Tokyo 1957: monster attack

Evaluation

failchecks 9/10 verdict: valid run (code checks and checklist) and task goal met (judge)

StatusKindCheckDetail
passstepenvironmentEnvironment check (snapshot, engine, key)
passsteplaunchLaunch run-city as a detached process
passstepsuperviseSupervise in the foreground until run-city exits
passsteprenderTimelapse video rendered
passstepnotesAppend Notes to summary.md
passcode_checkoutputs-existall present
passcode_checksim-reached-deadlineended Jan 1962 after 20 turns; scenario verdict False
passcode_checkdecisions-logged20 rows for 20 turns
passcode_checkllm-turns-valid3/20 model turns failed
passcode_checkvideo-decodesduration 30.0s
passcode_checklimits-respected10.1 wall-minutes (model budget 45.0 min)
failjudgescenario-goalLOST: City score 368 (goal > 500); engine verdict: lost (score 0 / threshold 1)
passchecklistnotes-explain-outcomesummary.md Notes section cites model thoughts from turns 1, 12, and 20 explaining the financial collapse and score decline
passchecklistplayer-matches-requestresult.json confirms player=jev, task=tokyo, seed=2 matching runbook parameters
passchecklistno-silent-outagerun.log shows continuous turn-by-turn progress with 3 failures within the 20% threshold, no long silent stretch

Decision timeline

What the mayor thought and did each turn. Click a turn to jump the timelapse there.

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