---
title: "Discussion on \"I Built Two Agent Systems. Each One Proved the Other One Wrong.\" | Hashnode"
description: "Discussion on \"I Built Two Agent Systems. Each One Proved the Other One Wrong.\". An LLM-reviewing-LLM engine versus a two-model debate engine. What each one proved about the other, and how to choose a multi-agent design."
url: "https://hashnode.com/posts/i-built-two-agent-systems-each-one-proved-the-other-one-wrong-mu3djfe2/6aa9e57438bff7f917eff84f"
---

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# [I Built Two Agent Systems. Each One Proved the Other One Wrong.](https://pragmatic-engineer.hashnode.dev/i-built-two-agent-systems-each-one-proved-the-other-one-wrong-mu3djfe2?utm_source=hashnode&utm_medium=feed)

An LLM-reviewing-LLM engine versus a two-model debate engine. What each one proved about the other, and how to choose a multi-agent design.

Sep 16 · 4 min read · pragmatic-engineer.hashnode.dev  
Updated Oct 29  
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-   [#ai](https://hashnode.com/tag/ai)
-   [#agents](https://hashnode.com/tag/agents)
-   [#architecture](https://hashnode.com/tag/architecture)
-   [#safety](https://hashnode.com/tag/safety)

## Written by

[Debashish Ghosal](https://hashnode.com/@deghosal)

@deghosal · Seattle, USA

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

AI-Native Engineering Leader · 25 years in SDLC · Building production-grade agent systems with LangGraph, CrewAI, and circuit breakers · ex-Microsoft · WBD

Engineering leader with 25 years building CI/CD platforms, developer experience tooling, and cloud infrastructure at Warner Bros. Discovery, Microsoft, and Nordstrom. Currently building production-grade AI agent systems — circuit breakers, model routing, cost boundaries, and reliability patterns for LLM agent loops. Author of ai-loopguard, an open-source circuit breaker for agent loops.

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