Zack Proser
Zack Proser is an AI engineer on the Applied AI team at WorkOS, where he works on retrieval systems, agent harnesses, evaluations, and developer-facing AI infrastructure. He previously worked at Pinecone, Cloudflare, and Gruntwork, and writes and speaks about applied AI, RAG, developer tools, and AI-assisted engineering workflows.
Human Attention Is Becoming the Bottleneck in AI Coding Workflows
Zack Proser, an Applied AI engineer at WorkOS, argues that AI coding has shifted the bottleneck from tool speed to human attention. His proposed workflow uses voice dispatch, isolated git worktrees, Slack and Linear-reading agents, remote phone control, and layered verification so developers can keep agent loops moving without staying pinned to a desk or rubber-stamping work they can no longer track.
Agent Skills Turn Repeated Instructions Into Portable Workflows
WorkOS engineers Nick Nisi and Zack Proser make the case that AI “skills” are a practical way to turn repeated agent instructions into portable, reusable workflows. They argue that small markdown-and-script packages can encode team context, constraints, evidence-gathering commands and output formats so agents stop producing generic answers and start following a team’s way of working. Their warning is that skills only help when they are focused, routed correctly, tested against a no-skill baseline and managed like shared software rather than treated as another giant context file.