Marc Dekeyser
Founder, Crimson Owl Technologies · ex-Microsoft
Marc Dekeyser spent a decade at Microsoft across Europe and the US, three of those years in Microsoft for Startups, where he ran the architecture reviews Microsoft gave startups and saw which designs survived contact with scale — roughly a thousand of them.
He now runs Crimson Owl Technologies, where he builds Platform Architecture Authority: a multi-agent AI system that assesses Azure and Microsoft 365 architecture against the Microsoft Azure Well-Architected Framework and ships the fixes as code.
He writes and speaks — dryly, and in public — about Azure architecture, platform engineering, and building AI agents you can actually trust.
How We Stopped Our AI Agents From Lying
A build-and-break story from production: 32 specialized AI agents assess a live Azure estate against the Well-Architected Framework — and the hardest part was never the prompt. Watch the system produce a plausible finding that is wrong, then catch its own hallucination live. Three reusable patterns for agent output you can actually trust.
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