> elaborate on tools, what tools are there and how can each one be used?

Sure thing.

From left to right, you have...
(1) ERASER. This can be used to clean up the space around you a bit, and even functions as a pseudo-white color for your brush!

(1) SENTIZER. This allows you to breathe life into anything you so desire. Just be prepared for the consequences of having a character in this story you have no full control over.

(1) PROGRAMIZER. This allows you to bestow a specific function into something you draw if you want to get more specific. If you want that apple you just drew to explode when eaten, you're more than welcome to use the PROGRAMIZER to make that happen!

(1) FUSERIZER. It fuses things that you draw together, alongside their functions and any sentience they may currently possess.

and (1) METATIZER. Careful with this thing. We aren't entirely sure how it works, but it seems to save your progress in the current forumventure, and transform the one you're currently in into something entirely different. When you save your current progress, you can feel free to load between adventures as you wish.
Complicated stuff.

Each TOOL has an outlet in the bottom where you can place your NODES and change the tool's function if you so desire.