Plan Codex — Development skill for Claude Code
Claude plans with Opus, Codex audits, loop until approved.
How to install Plan Codex
Installs to ~/.claude/skills/ching-kuo-claude-codex-plan-codex/SKILL.md
mkdir -p ~/.claude/skills/ching-kuo-claude-codex-plan-codex && curl -fsSL https://raw.githubusercontent.com/ching-kuo/claude-codex/HEAD/commands/plan-codex.md -o ~/.claude/skills/ching-kuo-claude-codex-plan-codex/SKILL.md Restart Claude Code, or start a new session, for it to be picked up.
What Plan Codex does
description: "Claude plans with Opus, Codex audits, loop until approved" argument-hint: "" model: claude-opus-4-6 allowed-tools: ["AskUserQuestion", "mcp__codex__codex", "mcp__codex__codex-reply", "Task", "Read", "Glob", "Grep", "Write", "Bash"]
**Deprecated**: This command has been converted to a skill (`/plan-codex`). The skill version is recommended for new usage and supports eval-based testing. This command is retained for backward compatibility (model pinnin
Alternatives in Development
- Implement Plan — You are tasked with implementing an approved technical plan from thoughts/shared/plans/ 10k ★
- Ralphy — My Ralph Wiggum setup, an autonomous bash script that runs Claude Code, Codex, OpenCode, Cursor agent, Qwen & 2.8k ★
- Taskmaster — Stop hook for Claude Code that keeps the agent working until all plans and user requests are 100% complete 494 ★
Full documentation available on GitHub
View Source RepositoryRelated Skills
Mythos Harness
A finish-first agent loop for Claude Opus 4.7 — plans, executes, verifies, and ships.
Mise Prep
Certify approved plans; route residue to plan-author.
Work Crunch
Run planning and delivery on a loop — plan, ship, close out, repeat — until the backlog is exhausted or a budg
Plan Consensus
Run plan-consensus skill — Claude↔Codex independent-critic review on a plan file until consensus or impasse
Opus Compatibility Scanner
Free Claude Code skill that audits CLAUDE.md, AGENTS.md, subagents, settings.json, hooks, and Anthropic SDK ca
Fable Countdown
Split-flap departure board counting down the days until Fable 5 leaves Claude subscription plans
Related Agents
Plan
Triage, analyze, and create phased development plans. Iterate with the user until the plan is approved.
Plan Reviewer 2
Second plan reviewer. Audits both the plan AND the first reviewer's feedback. Catches anything missed. Runs it
Approval Gate
HumanLayer-inspired approval gate. Enforces human-in-the-loop for HIGH-stakes operations. Classifies actions b