Just poked through the code, and I’ll add to the other answers given from an outsiders perspective.

What I find interesting: I’m running all kinds of agents (for good or bad, make fun of me if you like): not just coding agent products, but “hand rolled” as well, and they all have features which require some filesystem or environment state (tools, skills, instructions etc). They are each subtly different in those requirements, but some patterns are emerging and it seems to me that OP is seeing this as well - and noting that this aligns with the Agent Sandbox domain which is not “solved” yet. Consider that a Dockerfile sets up an environment for the code you want to deploy, which is better than the shell script you use on your local - it’s becoming more apparent to me that there’s a similar need here, which isn’t satisfied by the abstractions we already have, and lots of folks are poking around these domains to find something that fits.