[zkar]

This comment only on the first question: Ability to reverse engineer the program flow and provide a sequence diagram based on a run. THis should have the ability to specify a filter so unnecessary noise/well understood parts of the program flow can be skipped

[pedalpete]

Sounds really interesting. Are you thinking something like selecting a function/method will chain all the other functions/methods that call it and display them like a tree map?

Have you seen this somewhere already?

I'm not sure how difficult this would be to create, but I'm thinking if implemented properly, it could help in working with less/scss and show how changing a variable or class would affect the rest of the compiled css. What classes and ids would be affected, etc. etc.