Which Lisp are we talking about here? There is the Lisp that some programmers use to make ends meet and solve real world problems, then there is the mythical, perfect, Lisp that's much opined about by the Lisp fans in the non-coding prose-sphere.
If this tool is meant for real, actual Lisp programmers, I think you should pause for a minute and survey the community. This might not be what they want after all.
But if this is a thing for Lisp fans, well, those guys will take anything.
I would never have the ambition of creating a tool for Lisp programmers, they say communication with target users is a key thing for success. I still want to solve real world problems and I coul use a lisp <i> programmer </> or two.
If this tool is meant for real, actual Lisp programmers, I think you should pause for a minute and survey the community. This might not be what they want after all.
But if this is a thing for Lisp fans, well, those guys will take anything.