A gstack skill that gives Claude Code a "second opinion" by routing through OpenAI's Codex CLI. Three modes, all aimed at catching what your primary model misses.
/codex wraps the OpenAI Codex CLI so you can pull a different model into your Claude Code session on demand. Think of it as a "200 IQ autistic developer" sitting next to you — pedantic, literal, very good at finding holes in your reasoning.
It runs locally via the Codex CLI, so you keep working in Claude Code but get OpenAI's perspective when you want it.