Every time I start a new AHK project, I always end up rewriting some of these tools. Might save you a few precious seconds.
General reference: https://www.autohotkey.com/docs/commands/
Makes a popup with coords and color. Uses AHK's RGB format but can be changed to BGR for use with other methods. Start with CTRL+X, exit script with CTRL+C.
Makes a popup with some window info. Start with CTRL+X, exit script with CTRL+C.
Sends a mouse click at the current location every half second. Simple but nice to not write this literally every time i make a project. Start with CTRL+X, pause with CTRL+Z, exit script with CTRL+C.
Makes a popup with current mouse coords (relative to top left of window in focus). Start with CTRL+X, exit script with CTRL+C.