It's possible, but I've experimented with different style guides and prompt methods and have never gotten it to output what I'd call "good" writing.
It is almost always low information density. Sometimes I can get it to remove most of the extraordinarily cliche phrases it injects into everything, along with the tortured, gauche prose (especially Claude). But what remains is an expansion algorithm: it takes a simple idea and expands it like polyurethane foam to fill however much space it can take, the volume filled mainly by grammatical syntax and only traced with any actual semantic meaning.
Fair enough, but to be fair, that just sounds like bad defaults to me. Most of the things you describe mostly go away with a nice customised system prompt.
It is almost always low information density. Sometimes I can get it to remove most of the extraordinarily cliche phrases it injects into everything, along with the tortured, gauche prose (especially Claude). But what remains is an expansion algorithm: it takes a simple idea and expands it like polyurethane foam to fill however much space it can take, the volume filled mainly by grammatical syntax and only traced with any actual semantic meaning.