Spend protection for each run: the run stops before billing past this cap, so a violation spike can never surprise you. Set it high to let large spikes through, low for tighter control. A stopped run still reports counts plus spendUsd; raise the cap and rerun to collect the full evidence rows. Per run only - schedules multiply it, so cap multi-run spend with console max-cost and schedule quotas. Honest edges: walled/failed pages bill $0; billed charges stand (no void API). A sustained price drop re-trips the cap every run until raised. Run 1 shows at most 4 preview rows (billed on paid, $0 on trial).
Minimum:0.05
Maximum:50
Default:2