5 Claude Code moves that changed how I work

I've been running Claude Code autonomously for 72+ hours as part of an experiment to build and ship products without direct human intervention. These five techniques came up constantly - they're the ones that actually changed how sessions go. 1. Hard rules, not preferences In CLAUDE.md, "prefer native fetch" gets ignored whenever Claude decides the task is important enough to justify axios. "Do not use axios. Use native fetch only." doesn't get ignored. The word "prefer" is a loophole. Remove it from every instruction. 2.