Chain of Thought If Code Generation is Solved What's Next? | Graphite’s Greg Foster
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Sep 24, 2025 Greg Foster, Co-founder and CTO of Graphite, shares insights on the evolving role of AI in software development. He highlights how code reviews are now the bottleneck as AI automates code generation. Greg introduces three waves of AI technologies transforming coding processes and discusses the importance of context and senior engineers in this new landscape. He explains 'stacking'—breaking down changes for better review efficiency—and emphasizes the hiring gap for experienced engineers who can effectively leverage AI tools. A captivating dive into the future of coding!
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Three Waves Of AI In Coding
- AI coding has evolved in three waves: autocomplete, in-IDE assistants, and background/headless agents.
- Each wave raises new workflows and changes how engineers interact with code and teammates.
Copilot Sparked The First Wave
- Greg recalls GitHub Copilot as the first mainstream AI success that enabled line and small-block completion.
- He contrasts that with later tools that own the IDE and fill multiple lines ahead.
Outer Loop Is The New Bottleneck
- The bottleneck is shifting from code generation to the outer loop: reviews, merging, and deployment.
- Higher change volume stresses trust, CI, merge queues, and production rollout processes.
