My codex setup is quite literally a single file that states a format I want my reports to be written in so that I can review them before submitting them. Sometimes I bother with the container setup, sometimes I don’t depending on the work.

This isn’t a matter of a harness, skill files, anything. This is just something that a model can do.

You have multiple people saying they’ve done it here. I can only assume you’re being facetious at this point.