In my own group, agentic coding made sharing and collaboration go out the window because Claude will happily duplicate a bunch of code in a custom framework

In my AGENTS.md I have two lines in almost every single one: - Under no condition should you use emoji's. - Before adding a new function, method or class. Scan the project code base, and attached frame works to verify that something else can not be modified to fit the needs.

I think the idea is that by creating these shared .claude files, you tell the agent how to develop for everyone and set shared standards for design patterns/architecture so that each user's agents aren't doing different things or duplicating effort.