> I am considering relicensing my tools under some sort of Attribution-ShareAlike license similar to the BY-SA the content on this site is licensed under. […] This would still promote community contributions, but would also require that any modifications be shared alike meaning that the modified source would have to be provided and I would have to be credited as the original author.

Wouldn’t the GPL be a better match, this being software, than BY-SA? https://choosealicense.com/