Final measured worker costs

All five turns completed: twenty fresh workers, sequential explorer A, explorer B, critic, integrator per turn. No descendants launched. All workers inherited openai/gpt-6-astra, requested thinking medium; none was a bulk/simple retrieval assignment. No Sol assignment was needed. Explorer budgets were depth 2/workers 2; critics and integrators zero/zero.

Measurements

Read from each completed worker's execution.json usage and start/end timestamps, located through the retained per-worker return records. These are harness-reported model costs, not independently reconciled billing. Cache-read tokens are separate from input. Coordinator work, operator attention and counterfactual opportunity costs are excluded/unknown. No claim of cost-effectiveness follows.

Turn Worker Elapsed seconds Input tokens Output tokens Cache-read tokens Reported cost (USD)
turn-01 critic 172.3 37341 2547 352896 0.853656
turn-01 explorer-a 247.8 49906 5134 466816 1.222576
turn-01 explorer-b 199.6 55852 3370 347008 1.074028
turn-01 integration 208.1 38308 2829 417792 0.942322
turn-02 critic 156.4 41825 2624 391552 0.941002
turn-02 explorer-a 216.8 47552 3459 527744 1.176214
turn-02 explorer-b 217.9 36112 3348 434944 0.963464
turn-02 integration 158.7 51385 2575 265216 0.907816
turn-03 critic 177.9 38007 2652 381952 0.894622
turn-03 explorer-a 181.3 42678 3005 354816 0.931846
turn-03 explorer-b 191.3 31756 3018 315520 0.783980
turn-03 integration 128.2 36292 2733 150016 0.649586
turn-04 critic 169.3 40202 2639 434432 0.968402
turn-04 explorer-a 177.2 37119 3149 385920 0.914560
turn-04 explorer-b 193.2 38674 3052 378368 0.917708
turn-04 integration 160.1 42112 2823 475392 1.037662
turn-05 critic 141.6 37141 2938 203904 0.722214
turn-05 explorer-a 170.8 33447 3090 349056 0.838026
turn-05 explorer-b 172.5 39573 3141 293120 0.845900
turn-05 integration 198.2 46013 3608 575232 1.215762

Totals: 821295 input tokens; 61734 output tokens; 7501696 cache-read tokens; $18.801346 reported worker cost; 60.65 summed worker minutes. Cache-write tokens: 0. Sequential scheduling means no worker-time overlap, but parent coordination gaps are not included. Token totals reflect repeated context, not unique evidence read.

The pre-final record was available to all final-turn roles and is preserved unchanged. Their final cost discussion correctly covers only sixteen workers; this report supplies the completed accounting.

Interventions and limits

The operator authorized the second exploration and explicitly instructed all five turns without pauses. There were no between-turn operator interventions. The coordinator selected/replanned each question and intentionally did not adopt turn 2's proposed exclusive verification chronology; turn 3's coordination retains the reason. Thus trajectory is not evidence of autonomous question selection.

No experiments, implementation, extraction, commits or deletion occurred. The first run remains intact. The only source mutation was eleven grounded verbatim excerpts added to the Formal Theory of Creativity ingest's Quotes section. Broader focused literature search was not completed. Existing sources and repository arguments supported the documentary inquiry; no new external-source ingest was created.

No matched baseline, role ablation or causal comparison was run. Comparing first- and second-run costs cannot establish superior steering: topics, instructions, evidence and model work differ. Local session and audit paths in return records support accounting on this machine; research findings are in the Markdown results, not dependent on private reasoning transcripts.