Sync Codex and Claude Code configs: skills, agents, MCP, permissions

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For the sake of completeness have to point out this official OpenAI skill.

Migrate supported instruction files, skills, agents, and MCP config into Codex project and global files.

github.com/openai/skills

skills/.curated/migrate-to-codex/SKILL.md

main

---
name: migrate-to-codex
description: Migrate supported instruction files, skills, agents, and MCP config into Codex project and global files.
---

# Migrate to Codex

## Autonomy

Keep going until the selected migration is completely done: run the migrator, inspect the report, fix migrated Codex instructions/skills/agents/MCP config, and re-run checks without stopping to ask for confirmation of the next step. If the user has selected a target, do not ask before creating, editing, replacing, or deleting generated Codex artifacts in that target (`AGENTS.md`, `.codex/`, `.agents/`, or `~/.codex/`). Preserve unrelated existing Codex config entries in `.codex/config.toml` or `~/.codex/config.toml`, such as `notify`, `projects`, `marketplaces`, or unrelated MCP servers; do not ask about them unless they fail validation or directly conflict with the migration. Do not edit source Claude Code files (`.claude/`, `~/.claude/`, `.mcp.json`, or `.claude.json`), unrelated project code, secrets, or another repository.

## Migration Order

Run the migration in this order for each selected global or project source:

1. Start by using Codex's built-in TODO/task list tool. Do not create `MIGRATION_TODOS.md` or any TODO file unless the user explicitly asks. The TODO list input has a `plan` array whose items each have `step` and `status`; use statuses `pending`, `in_progress`, and `completed`. Make the TODOs specific to the selected artifacts. Before finishing, update the TODO list so every finished step is marked `completed` and no step remains `in_progress`. Use literal source → Codex target labels, for example:
   - Inspect `.claude/commands` → Codex skills/prompts
   - Inspect `.claude/agents` → `.codex/agents`
   - Inspect `.mcp.json` → `.codex/config.toml` MCP servers
   - Inspect `.claude/settings.json` hooks → `.codex/hooks.json`

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