---
title: "Discussion on \"Building a Model-Agnostic Agent Harness: What Breaks When You Switch LLMs\" | Hashnode"
description: "Discussion on \"Building a Model-Agnostic Agent Harness: What Breaks When You Switch LLMs\". Six months of production lessons from multi-model systems"
url: "https://hashnode.com/posts/building-a-model-agnostic-agent-harness-what-breaks-when-you-switch-llms/6a5de27a351e9e515766653d"
---

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# [Building a Model-Agnostic Agent Harness: What Breaks When You Switch LLMs](https://sarahtokenbay.hashnode.dev/building-a-model-agnostic-agent-harness-what-breaks-when-you-switch-llms?utm_source=hashnode&utm_medium=feed)

Six months of production lessons from multi-model systems

Jul 20 · 7 min read · sarahtokenbay.hashnode.dev  
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-   [#ai](https://hashnode.com/tag/ai)
-   [#llm](https://hashnode.com/tag/llm)
-   [#production](https://hashnode.com/tag/production)
-   [#artificial-intelligence](https://hashnode.com/tag/artificial-intelligence)

## Written by

[Sarah Pan](https://hashnode.com/@sarahpan)

@sarahpan · Los Angeles, USA

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

Software engineer exploring AI, games, and creative workflows.

TokenBay Engineer Keep working on AI, Games and dogs

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