Dexter Horthy builds agentic developer tools at HumanLayer. He focuses on helping teams tackle complex codebases by evaluating the long-term quality of AI-generated code. His goal is to ensure models write code that improves over time rather than turning into an unmaintainable mess.
He coined the term âcontext engineeringâ in 2025 and speaks regularly on the practical realities of agentic coding. Before moving into AI, Dexter spent a decade working on Kubernetes and infrastructure. He started early, building lunar exploration tooling for NASA researchers while still in high school.