Guide

Preventing Runaway AI Agent Costs: The Complete Guide

Why agents overspend, how to detect a runaway loop, and the three firewall rules that stop it before the bill arrives.

· Published 2026-07-19

Full Guide

Runaway loops happen when agents repeat paid actions in a reasoning cycle. Detection signals: >20 API calls/minute, identical payloads, escalating costs. The three rules that stop it: velocity limits (max calls/minute), daily caps (hard $ limit), and approval thresholds (human review for large amounts).

Getting Started

All of these patterns are built into sipi.bot. Install, configure your rules, and connect your agent — the firewall handles the rest.

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