Cathal O'Shea

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Thoughts on AI, technology and building products.

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Notes on Customer Service AI Agents

Jun 30, 2026 · 17 min read

A working tour of AI customer service agents: what separates an agent from a chatbot, why support is an early proving ground, and how players like Fin, Decagon and Sierra are scaling.

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Support agent demo: a refund request resolved autonomously

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