In this episode of the Leanpub Podcast, Len Epp interviews Daniel Vaughan, author of Codex CLI: Agentic Engineering from First Principles. Dan shares his background and explains how “agentic AI” is transforming software engineering by enabling developers to collaborate with AI systems that can plan, execute, and iterate on complex tasks.

The conversation explores key ideas from the book, including prompting fundamentals, multi-agent orchestration, and integrating AI workflows into modern development pipelines like CI/CD. Dan discusses how tools like Codex CLI are reshaping developer productivity, shifting the role of engineers toward higher-level problem-solving and system design.

They also dive into the broader implications for the future of work, including how individuals and organizations can adapt to rapidly evolving AI capabilities. Dan emphasizes practical experimentation, continuous learning, and embracing new workflows to stay relevant in an AI-driven engineering landscape.