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Agentic AI Engineering: 6 Critical Mistakes That Silently Kill Your AI Agents

The 6 critical mistakes that silently destroy agentic systems

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javinpaul, Paul Iusztin, and Louis-François Bouchard
Apr 14, 2026
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Hello guys, Breaking into Agentic AI and Large Language Model (LLM) engineering can feel overwhelming. With rapid advancements in transformer architectures, tools like LangChain and Hugging Face, and the constant evolution of open-source models, many developers and aspiring ML engineers struggle to find a clear, structured path to mastery.

That’s why we’…

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A guest post by
Paul Iusztin
Senior AI Engineer • Founder @ Decoding AI • Author @ LLM Engineer’s Handbook ~ I ship AI products and teach you about the process.
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Louis-François Bouchard's avatar
A guest post by
Louis-François Bouchard
Focused on making AI accessible. What's AI on YouTube, Spotify, Apple Podcasts. Co-founder @towards_ai. ex Ph.D. student @Mila_Quebec @polymtl.
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