What problem does it solve? When you are stuck on a hard bug, evaluating design trade-offs, or want a critique from a different model family, a single-model perspective can miss blind spots. This Skill lets Claude Code delegate a question to OpenAI's Codex CLI and read back a structured second opinion. ## Core Features & Use Cases - Non-interactive Codex execution: Runs codex exec in read-only sandbox mode with full disk read access, so Codex can inspect the codebase without modifying anything. - Background job management: Launches Codex as a named background job with a deadline, then reads the final answer from an output file. - Prompting guidance: Provides concrete instructions for orienting a zero-context model—pointing it at CLAUDE.md, decisions records, and ticket files, and requesting structured output. - Use Case: While debugging a flaky test, ask Codex to review the relevant files and list the top five likely causes with fixes, then compare its answer against your own analysis. ## Quick Start Ask the agent to get a second opinion from Codex on the current design or bug, and it will run Codex in the background and report back the findings.