Hermes accomodates other coding agents pretty well and has in fact bundled skills for claude code and codex (for spawning subagents, delegating, etc.). They are not exclusive
I haven't tried these 'agent fleet' frameworks in depth and am not sure yet they are not just a gimmick. Both openclaw and hermes handle multi-agennt orchestration, fwiw. Gas town looks like a silly way to burn all your tokens in a day. Paperclip is just buggy. I'm waiting for them to become more mature