broken codex setup and nerfed skills for codex

[tuauatyro1]

1. .codex/prompts - Custom prompts are deprecated by openai, and dont work
2. skill for the Codex has been severely nerfed. Why? This needs to be fixed.
3. Why have a separate command for launching and for the skill? It’s perfectly sufficient to have a single skill that incorporates the information from the command.