This is pretty much like any other game jam, but the objective here is to create tools to help us make game jam games. There is no themes nor restrictions as long as you have the right to use the assets. 

Some ideas :

an interactive color palette generator or a color palette generator that takes the main colors of an image;

an game concept generator;

a level builder;

a decision making machine? Your creativity is the limit!

Here are the criteria we will be voting: usefulness, graphics, sound design, originality and bug-free.

You may also gamify the tool if you fee like it. All tools will be stored in a Google Drive folder  dedicated to help all jammers.  You may create all sort of things, like tutorials, sprite sheets, sound libraries, tools etc.

Join us on Discord for more info. You may also find a team there.

If you are new to this or not, you may also want to check out the article Game Jam Survival Kit. I've written it to encourage people to more game jams and maybe avoid a bad experience.