I am really dissatisfied in Codex and Claude, not because they are bad software, but because I feel complete lack of control, LLMs are non-deterministic enough that I don't feel to compound it with an harness that changes every day.

Every few versions the behavior changes, the way they use tools changes, the way it reads or ignores skills, suddenly they start creating worktrees and make different messes and you're not even aware they launched background jobs or server instances, so they kill them in a different parallel one you didn't even knew it existed.

I can't but feel that the "one main agent with all the tools and skills" design is limited.