Plan Review via Codex

About

The Plan Review via Codex skill introduces a rigorous secondary validation layer to the Claude Code workflow. By leveraging an external Codex agent, this skill allows Claude to submit its proposed implementation plans for a comprehensive audit before execution. It specifically looks for missing edge cases, architectural risks, sub-optimal logic, and potential breaking changes, ensuring that complex tasks are thoroughly vetted. This is an essential tool for high-stakes refactoring or large-scale feature additions where a single perspective might overlook critical system dependencies.

Key Features

• Non-interactive, read-only sandbox execution to ensure code safety.
• 31 GitHub stars
• Automated second-opinion validation for complex implementation plans.
• Completeness checking for edge cases, testing coverage, and missing steps.
• Flexible integration using either MCP tools or Bash fallback commands.
• Comprehensive risk assessment identifying breaking changes and data loss potential.

Use Cases

• Auditing architectural migrations to prevent system regressions.
• Conducting risk assessments for mission-critical production changes.
• Identifying overlooked edge cases in new feature specifications.