--- name: codex-review description: Get a second opinion from OpenAI Codex on your current code changes. Analyzes staged/unstaged diffs and returns prioritized findings. Use when user asks to "review with Codex", "Codex code review", or "ask Codex to check my code". --- ## Portable contract Gather the relevant staged, unstaged, and untracked code changes; build a bounded context brief; request a read-only Codex review at high reasoning effort; verify each reported finding against source; and return only prioritized, source-supported findings. Preserve the configured Sol-to-Terra fallback and disclose it. ## Host adapters ### Pi adapter Call the native `ask-codex` tool with `reasoningEffort: "high"` and apply only the `Portable contract` section of `../../agents/codex-reviewer.md`. The review runs inline in the current host context; do not claim subagent isolation. ### Claude Code adapter The existing detailed workflow below is the Claude Code adapter. Its Agent, MCP, hook, `CLAUDE_PLUGIN_ROOT`, and `AskUserQuestion` mechanics apply only on Claude Code; they do not override the Pi adapter above. # Codex Code Review Review current code changes by delegating to the `codex-reviewer` agent. ## When to use this vs codex-pair This skill is **precision-first**: confidence ≥ 80, "don't flag style/linter-catchable" filter. Optimized for low false-alarm rate on diff review — appropriate default for routine PRs. For **recall-first** review on hot-path code (money handling, security paths, spec-implementing code), see the [`codex-pair`](../codex-pair/SKILL.md) sibling — a PostToolUse hook that opts in per-project via a `.codex-pair/context.md` marker file. The 4-task benchmark in ADR-077 shows codex-pair catches domain-level "wrong but won't crash" issues (float-money precision, cross-cutting validation gaps, edge clamping) that this skill's confidence filter structurally suppresses. Different classes of bug, not the same class with different completeness. | Use this skill | Use codex-pair | |---|---| | Routine PR review (cheap, high precision) | Money/billing/security/spec code (deeper, costlier) | | You want one comprehensive report | You want every concern flagged with severity | | Cost-sensitive (~$0.04/PR) | Acceptable cost (~$0.20/edit pass) | ## Instructions 1. Gather the diff to review: - Run `git diff` to get unstaged changes - Run `git diff --cached` to get staged changes - Combine both into a single diff 2. If the diff is empty, inform the user there are no changes to review. 3. Launch the `codex-reviewer` agent with the diff content. The agent handles the Codex prompt structure and output formatting, using GPT-5.6 Sol at `high` reasoning effort with automatic Terra fallback.