second-opinion

Installation
SKILL.md

Second Opinion

Shell out to external LLM CLIs for an independent code review powered by a separate model. Supports OpenAI Codex CLI and Google Gemini CLI.

When to Use

  • Getting a second opinion on code changes from a different model
  • Reviewing branch diffs before opening a PR
  • Checking uncommitted work for issues before committing
  • Running a focused review (security, performance, error handling)
  • Comparing review output from multiple models

When NOT to Use

  • Neither Codex CLI nor Gemini CLI is installed
  • No API key or subscription configured for either tool
  • Reviewing non-code files (documentation, config)
  • You want Claude's own review (just ask Claude directly)
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Installs
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Repository
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3
First Seen
Feb 28, 2026