Now, if you want to make an allowance for dedicated read/write/edit tools that make the life of the agent easier, then why stop at these three? There are a bunch of other tools that would also make the life of the agent easier, from LSP access to nicer webfetch capabilities, or even the ability to control a headless browser. Or, if you want to claim that "pi can build itself" then why not say that people have to provide their own read/write/edit tools (which can easily be oneshotted with just bash at first anyway)?