
 The Ruby AI Podcast
 The Ruby AI Podcast Roasting Ruby AI Workflows with Obie Fernandez
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 Aug 12, 2025  Obie Fernandez, a Ruby expert and Shopify Principal Engineer with 20 years of experience, joins Valentino Stoll and Joe Leo for an engaging discussion. They delve into the launch of Roast, an open-source Ruby framework for AI workflows. Key topics include innovative AI orchestration, the evolution of AI in coding practices, and the interplay between creativity and software development. Obie highlights the importance of effective prompting, navigating knowledge silos in AI, and the transformative potential of AI in both music production and tech. 
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AI As Discrete Workers
- Obie sees LLMs as discrete smart components that can replace large amounts of procedural code.
- Treat them as “workers” in your architecture rather than deterministic functions.
Design For Non-Determinism
- Don't treat LLMs like deterministic processes; design systems around their stochastic nature.
- Use low temperature and careful prompting to get repeatable, reliable outputs.
Power Of Agent Swarms
- Agent swarms narrow the reasoning path and keep each expert's context small and focused.
- Delegating tasks to specialist agents preserves detail and reduces compaction issues.







