The KUNI Blog
Building an AI receptionist that sounds human
Field notes from the making of KUNI — the real bugs, the fixes, and the engineering ideas behind an AI receptionist that answers every call, text, and WhatsApp without sounding like a robot reading a script.
Engineering17 min read
You Don't Have One Railroad — You Have Fifty
The best objection to the railroad pattern: real businesses don't have one conversation, they have fifty. Here's how we keep a fleet of voice-AI flows coherent with reusable, drift-pinned components instead of hand-drawing hundreds of nodes.
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The Railroad Pattern: How to Make an AI Receptionist Sound Human
Most AI phone agents sound robotic because of a timing bug, not a dumb model. Here's the 'railroad' — the engine pattern that makes KUNI sound like a focused person, told through the production bugs that shaped it.
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