Michael Sitarzewski

Sitarzewski’s personal history describes starting a desktop-publishing business in the late 1980s and building web products from 1993. It records earlier ventures including Epic Playground and community work with Dallas Startup Week, Big D Open Coffee Club, and Launch DFW. At Tandem Theory, where he dates his role from 2021, he oversees innovation and technical architecture across AI systems, web, email, and user experience.[1]

Agency Agents is a collection of agent definitions that specify a role’s mission, communication style, workflow, and deliverables. A developer can inspect the underlying Markdown and adapt selected roles instead of adopting the whole collection. Installation tools translate the definitions for different coding assistants, and a separate desktop app provides a browsing and installation interface. The role descriptions are instructions to a model, rather than independently credentialed specialists or evidence that every claimed skill performs reliably.[3]

Agency Agents makes one part of Sitarzewski’s practice reusable: write down how a role should approach work and what it should produce, then keep the definition available for review. Testing a selected role against a familiar assignment is more informative than the size of the roster.[1][3]