HomeSoftware engineer writing about AI agents, developer tools, and building software that scales.https://lukasmasuch.com/The Repo Is the Harness - How we made an 8-year-old codebase agent-nativehttps://lukasmasuch.com/blog/the-repo-is-the-harness/https://lukasmasuch.com/blog/the-repo-is-the-harness/Features that used to take a sprint now ship in hours. The single biggest lesson: when an agent produces bad output, the problem is almost always the repo, not the AI.Sun, 05 Apr 2026 00:00:00 GMT