Use when you want an independent second opinion from the Codex CLI on a specific decision, design, bug, or piece of code — triggers like "ask Codex", "what would Codex say", "get a second opinion", "cross-check this with another model", "have another agent look at this". One-shot and read-only. Requires the codex CLI installed and logged in. Not for an adversarial planning back-and-forth (use duel-plan) or for routine work you are already confident about.
