# Mitchell Hashimoto’s New Way of Writing Code ![rw-book-cover](https://substackcdn.com/image/fetch/f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fbucketeer-e05bbc84-baa3-437e-9518-adb32be77984.s3.amazonaws.com%2Fpublic%2Fimages%2F9d53c70a-bdd3-4080-8425-9520ca6acfd4%2Fapple-touch-icon-1024x1024.png) ## Metadata - Author: [[Gergely Orosz]] - Full Title: Mitchell Hashimoto’s New Way of Writing Code - Category: #articles - Summary: Mitchell Hashimoto, co-founder of HashiCorp, shares how AI agents have changed his coding workflow by running tasks in the background. He explains that Terraform succeeded through community and developer focus, not timing. He also advises engineers to use AI for research help, not just code writing. - URL: https://newsletter.pragmaticengineer.com/p/mitchell-hashimoto ## Highlights - Mitchell Hashimoto is one of the most influential infrastructure engineers of our time, and is one of the most pragmatic builders I’ve met. He is the co-founder of HashiCorp and creator of Ghostty. ([View Highlight](https://read.readwise.io/read/01kjd8khst9z4mh9143a609vxs)) - **5. Mitchell’s new rule for building software: always have an agent running in the background doing something.** “If I’m coding, I want an agent planning. If they’re coding, I want to be reviewing.” He kicks off tasks before leaving the house — research, edge-case analysis, library comparisons — so work progresses while he drives or is away. ([View Highlight](https://read.readwise.io/read/01kjd8n0eawffdqzwjd09hndz4))