Schedule a 40-task build DAG on 3 workers with exclusive resources
Exact prompt
# Task: schedule a build `tasks.json` describes 40 build tasks: duration (minutes), dependencies, and resources each task holds while running. There are `workers` identical workers (each runs one task at a time) and resource limits (at most `db: 1` and `net: 2` tasks holding that resource concurrently). Tasks can't be preempted; a task may start only when all its deps have finished (start ≥ max dep end time). Produce `schedule.json`: {"t00": {"start": <int minute>, "worker": <0..workers-1>}, ...} for ALL tasks, minimising the makespan (time the last task finishes). Also write `plan_notes.md` with your makespan and the lower bound you computed (max of critical path and total work / workers). You may write code. No network.
Validator checks deps, worker overlap, resource limits; must match or beat critical-path list scheduling (makespan 98; lower bound 91). Original benchmark task written for usecaserank.com (not based on a specific public post). Headless, offline run on a reproducible fixture. Each run's notes say how its cost was measured (estimates are marked).
Success criteria: 1. schedule.json must contain exactly the 40 tasks, each with a non-negative integer start and a valid worker index. 2. No task starts before all its dependencies finish. 3. No two tasks overlap on the same worker. 4. At no start time do concurrent tasks exceed the db (1) or net (2) resource limits. 5. Makespan <= the reference critical-path list-scheduling makespan.
Best model for this task so far: Claude Haiku 5.5 (effort default (no --effort flag) · thinking on) (success, $0.0062, 2m).
All runs (4)
100% pass rate across 4 eligible runs: 4 pass, 0 partial, 0 fail. Partial and failed runs are listed below with everything else.ⓘ
| Model | Cost | Time | Step-insⓘ | Autonomy | Outcome | Trustⓘ | Date | Compare |
|---|---|---|---|---|---|---|---|---|
| OGPT-6.1 Soldefault · thinking on | $0.06 | 1m | 0 | Fully autonomous | pass | Trust 80% | 2026-10-22 | |
| AClaude Haiku 5.5default · thinking on | $0.0062 | 2m | 0 | Fully autonomous | pass | Trust 80% | 2026-10-16 | |
| AClaude Opus 5.5default · thinking on | $0.47 | 1.7h | 0 | Fully autonomous | pass | Trust 80% | 2026-10-16 | |
| AClaude Sonnet 5.5default · thinking on | $0.07 | 2m | 0 | Fully autonomous | pass | Trust 80% | 2026-10-16 |
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