It's pretty neat that they're adding these things. In my projects, I have a `bin/claude` subdirectory where I ask it to put scripts etc. that it builds. In the claude.md I then note that it should look there for tools. It does a pretty good job of this. To be honest, the thing I most need are context-management helpers like "start a claude with this set of MCPs, then that set, and so on". Instead right now I have separate subdirectories that I then treat as projects (which are supported as profiles in Claude) which I then launch a `claude` from. The advantage of the `bin/claude` in each of these things is that it functions as a longer-cycle learning thing. My Claude instantly knows how to analyze certain BigQuery datasets and where to find the credentials file and so on.

Filesystem as profile manager is not something I thought I'd be doing, but here we are.