Agreed here. A key theme, which isn’t terribly explicit in this post, is that your codebase is your context.

I’ve found that when my agent flies off the rails, it’s due to an underlying weakness in the construction of my program. The organization of the codebase doesn’t implicitly encode the “map”. Writing a prompt library helps to overcome this weakness, but I’ve found that the most enduring guidance comes from updating the codebase itself to be more discoverable.