OpenRouter explains four guards that stop AI agents looping on failing tools
AIOpenRouter says an AI agent stuck retrying a failing tool call can rack up thousands of dollars, and its guide stops the loop with four guards tested on six models. Three run through the OpenRouter Agent SDK (@openrouter/agent 0.11.0): doom-loop detection, a rule for which calls count as repeats, and step and cost caps.
Source details
OpenRouter Blog · openrouter.aiPublished · added here
Original title: How to Stop an AI Agent Stuck in an Infinite Loop