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    • AI Agent Engineering for Developers
      • The Agent Loop

13.05.2026

A Robot surrounded by tools to choose from

Tool Calling Agents: How Models Turn Decisions Into Actions

AI Agent Engineering for Developers, The Agent LoopBy Sami13.05.2026Leave a comment

Tool use is where an agent stops generating text and starts affecting real systems. This article explains why tool design acts as both decision boundary and action contract, and how better schemas, validation, and tracing make tool calling agents more reliable.

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