The Creator of Claude Code Said to Do What Now?!

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• Cole Medin examines Boris Cherny’s advice to periodically delete your AI agent’s CLAUDE.md, skills, and hooks, acknowledging that while some parts of your “AI layer” genuinely expire (as Anthropic found by cutting 80% of Claude Code’s prompt), there’s significant nuance.
• He frames this process as “ablation” – an evaluation method, not just deletion – to identify “over-specification mistakes.” His testing on a codebase called Archon revealed that “architecture held up, conventions broke,” suggesting some prompt elements remain valuable while others become redundant.
• Users should be aggressive in cutting expired AI layer components but cautious not to delete parts still doing real work, as the cost can be surprisingly hard to notice. He provides an “Ablation Skill” for any coding agent to help users perform this evaluation on their own repos.