I've found building out the "Instructions" in "Your Claude" helps a lot, and keep refining them. Here's some of whats in mine, i have more but they are specific to my role, profession, file structu...

you can use the free version to an extent, depends on what you want to do with it. Explain exactly what you want?

Start using claude and connect it, use cowork with access to the folder with your drawings/specs, mcp to zz and get it to audit your takeoffs and assemblies

Lesson learned, always check!

This is fun! Also for people chewing through AI usage, the best way to use AI is in the "AGILE" method of work, by breaking things into smaller tasks, telling AI what your task is trying to achieve...