Anthropic's Claude Code team outlines four agent loop types—turn-based, goal-based, time-based and proactive—to automate coding workflows while controlling token costs

Agent loops are keeper infrastructure with model calls in the hot path: Chainlink Automation and Gelato learned years ago that unattended execution only works when the trigger, budget, and stop condition are explicit. Claude Code's own cost docs put enterprise usage around $13 per developer per active day, while agent teams can burn about 7x more tokens than standard sessions in plan mode.

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