i dont think there is anything preventing devs to filter out certain items from the tools list - security is more of a issue for how you are harnessing your agent (at code-level of course)
Tbh, lots of EMs/VPs in wild that only behave like salespersons without the actual context. I sometimes find it hard to justify them making as much as senior engineers but could be considered as a stress-pay for those meetings..
Very interesting idea, I didn't notice kind of need for designers until now. When I code for a game, I also check for other games, it might be too opinionated but they also have some common experience at their navigation and I find it quite helpful.