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Hi, I'm Den 👋

Tinkerer, Nerd, Pixel Geek.
Den Delimarsky's personal avatar.

I am a super-technical product engineer who is all about solving complex problems, reverse-engineering things, and documenting everything. Some of my work includes:

  • 🚧 Helping secure developer tools and AI-powered experiences that make engineers more productive.
  • 🚢 Helping with Model Context Protocol (MCP) security as part of the MCP Steering Committee.
  • 🎙️ Recording a podcast where I talk to notable folks about unconventional career paths.
  • ☕ Building a utility to keep your Windows machine awake.
  • 🪨 Tinkering with USB protocols from a popular button box.

You can read more about my work and more on the About page.

Recent

Stop Guessing: MCP Elicitations Come To Visual Studio Code

·1085 words
Tired of agents making wrong assumptions about user input? Visual Studio Code now supports MCP elicitations, where servers can request structured input through the client’s native UI, completely eliminating guesswork and tedium of interpreting LLM input.

Please Don't Write Your Own MCP Authorization Code

·2579 words
The Model Context Protocol got auth right, but that doesn’t mean you should implement it yourself. Here’s why API gateways are usually the better choice, and what that really costs you.