---
title: "Discussion on \"Anatomy of a Tool-Calling Agent Loop: What's Happening Under the Hood\" | Hashnode"
description: "Discussion on \"Anatomy of a Tool-Calling Agent Loop: What's Happening Under the Hood\". A Framework-Free Walkthrough of the Control Loop Behind Every Tool-Calling AI Agent"
url: "https://hashnode.com/posts/anatomy-of-a-tool-calling-agent-loop-what-s-happening-under-the-hood/6a69b5440bd976b108227a5a"
---

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# [Anatomy of a Tool-Calling Agent Loop: What's Happening Under the Hood](https://sudips.hashnode.dev/anatomy-of-a-tool-calling-agent-loop-what-s-happening-under-the-hood?utm_source=hashnode&utm_medium=feed)

A Framework-Free Walkthrough of the Control Loop Behind Every Tool-Calling AI Agent

Jul 29 · 4 min read · sudips.hashnode.dev  
Updated Aug 5  
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## Written by

[SUDIP](https://hashnode.com/@devsuds)

@devsuds · India

  
[View profile](https://hashnode.com/@devsuds)

Serverless by trade, Agentic by direction.

Software Engineer, 10+ Years years building production infrastructure on AWS. I write about backend systems, cloud infrastructure, and agentic AI — how agents are built, deployed, and kept running once they leave the notebook.

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