Mitchell Hashimoto, co-founder of HashiCorp and creator of Ghostty, told The Pragmatic Engineer that AI agents have fundamentally changed how he writes code. This is not a productivity-tips conversation. Hashimoto is one of the engineers who built Vagrant, Terraform, Vault, and Consul, tools that run inside most serious infrastructure stacks on the planet. When he says agents changed how he works, that claim carries weight.
The episode covers ground most AI coverage skips. Terraform was seventh to market in infrastructure-as-code, not first. HashiCorp had no real business for four years. Their first commercial product, Atlas, failed because it required customers to buy the entire HashiCorp stack, and no single team inside a company would own that budget. The pivot to selling Vault, Consul, and Nomad as standalone products is what actually worked. There is also a frank account of what it is like to negotiate with AWS, Azure, and GCP as a startup, and how VMware nearly acquired HashiCorp for approximately one billion dollars before IBM ultimately did the deal.
The section worth reading in full is Hashimoto's breakdown of how he now uses AI agents day to day, specifically the shift in how he structures tasks, reviews output, and thinks about what still requires a human in the loop. The original episode is available on YouTube, Spotify, and Apple Podcasts, with a full transcript and timestamps. Read it for the infrastructure history. Stay for the agent workflow.
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