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ARTICLE28

Tool-use API design for LLMs: 5 patterns that prevent agent loops and silent failures

DEV.to AIΒ·May 5, 2026

This article discusses how LLM agents can incur significant costs due to recursion loops and silent failures stemming from inadequate tool-use API design. It presents five patterns aimed at preventing these issues in production LLM systems, emphasizing tool design over prompting.

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