Introducing Roast: Structured AI workflows made easy (2025) - Shopify

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This post introduces Roast, a new open-source framework for structured AI workflows. Roast addresses the challenges of non-determinism and reliability in AI agent execution by providing a convention-oriented orchestration layer. It defines various step types (directory-based, command execution, inline prompts, custom Ruby), offers built-in tools for file manipulation and command execution, and integrates a powerful CodingAgent powered by Claude Code. Roast supports advanced control flow mechanisms like iteration and conditional execution, and features session replay for development. The framework is built on Raix and has demonstrated impact in areas like test quality, automated type safety, and proactive monitoring.