AI Engineer · August 19, 2026

Healthcare’s Agent Bytecode: X12 as the Harness for AI Agents — Vasant Kearney, Onlay

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Healthcare’s Agent Bytecode: X12 as the Harness for AI Agents — Vasant Kearney, Onlay video thumbnail

Why it matters

Call the payer, open their web portal, and read their X12 feed, and all three can tell you the patient is covered. You treat the patient anyway, and the claim comes back denied because they were not covered at the time. Vasant Kearney's point is that none of those surfaces is ground truth.

My takeaway: Healthcare’s Agent Bytecode: X12 as the Harness for AI Agents — Vasant Kearney, Onlay is an agent-security signal. The practical read is that autonomy, memory, tool permissions, and third-party integrations are the control surface that needs threat modeling and monitoring.

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