The meta module is an interesting idea - some mechanism for loading & keeping a list of potentially required modules.

That kind of thing -- lazy importing/on-demand functions -- is on my TODO list for ToolSet. If there's a lot of demand for it, I'd be willing to bump it up on my "get around to it" list. I was thinking of exporting a stub function that, if called, would require the real module if it hadn't been loaded already and from then on just directly goto the real function whenever called.