Seems promising, will have to try it out. It really is grating to read output from opus 5 currently. Never heard of the term "mannered prose" before. I'm constantly debating with myself whether to add more to my claude.md, or whether to simplify it before adding new stuff.

Glad you got something out of it! Yes, it's hard to tell when something should be in claude.md or added to each subsequent prompt in a session. I need to do a similar analysis here for multi-turn settings and especially coding settings.