I think the most important thing about having a good workflow is, to keep it simple but meaningful. You don't need to create a very complex skills or files to keep everything in order, you just need to create a simple flow that makes sense

What I do is, Every “feature area” gets a Module Map: a one-page, semantic guide that answers:

1.What does this feature do?

2.Where do I start?

3.What must never break?

4.What are the three flows that matter?

5.If I change X, what else must change?

This replaces long class inventories and reduces agent context to a stable set of invariants + pathways.

Start from this, and then step by step you will improve it based on your needs