claude-codex-settings

My daily battle-tested Claude Code/Desktop and OpenAI Codex setup with skills, commands, hooks, subagents and MCP servers.

Installation • Plugins • Configuration • References

Installation

Plugins add skills, commands, and automations to your AI coding tool. Install only what you need from the plugin list below.

Prerequisites: See INSTALL.md for setup requirements.

# Add marketplace (one time)
/plugin marketplace add fcakyon/claude-codex-settings

# Install any plugin by name
/plugin install <plugin-name>@claude-settings

Codex installs plugins from a local marketplace rather than a direct shell install command.

1. Clone this repo locally and open it in Codex.
2. This repo already includes .agents/plugins/marketplace.json.
3. If Codex was already open when you added or changed that file, restart Codex.
4. In Codex, open /plugins.
5. Choose Claude & Codex Settings and install the plugins you want.

This README only covers installing this marketplace. For generic Codex marketplace examples and maintainer docs, see CLAUDE.md.

gemini extensions install --path ./plugins/<plugin-name>

cursor plugin install <plugin-name>@claude-settings

Create symlinks for cross-tool compatibility:

ln -sfn CLAUDE.md AGENTS.md
ln -sfn CLAUDE.md GEMINI.md

Plugins

| Claude Code | Codex CLI | Gemini CLI | | --------------------------------------------------------- | -------------------------------------------------------------- | -------------------------------------------------------------------- | | /plugin install anthropic-office-skills@claude-settings | Open /plugins -> Claude & Codex Settings -> install anthropic-office-skills | gemini extensions install --path ./plugins/anthropic-office-skills |

Skills CLI

npx skills add https://github.com/fcakyon/claude-codex-settings/tree/main/plugins/anthropic-office-skills --skill '*'

Official office document skills from anthropics/skills.

| Skill | Description | Install | | ---------------------------------------------------------------- | ------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------ | | pdf | PDF processing (read, merge, split, create, OCR, forms) | | | pptx | PowerPoint presentation building and editing | | | xlsx | Excel spreadsheet processing with formulas | | | docx | Word document creation and editing | |

| Claude Code | Codex CLI | Gemini CLI | | ------------------------------------------------------ | ----------------------------------------------------------- | ----------------------------------------------------------------- | | /plugin install openai-office-skills@claude-settings | Open /plugins -> Claude & Codex Settings -> install openai-office-skills | gemini extensions install --path ./plugins/openai-office-skills |

Skills CLI

npx skills add https://github.com/fcakyon/claude-codex-settings/tree/main/plugins/openai-office-skills --skill '*'

Official office document skills from openai/skills.

| Skill | Description | Install | | --------------------------------------------------------------------------- | --------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | pdf | PDF generation and extraction with visual review | | | slides | Slide deck creation with PptxGenJS | | | spreadsheet | Spreadsheet processing with formulas and formatting | | | doc | Word document creation and editing | |

| Claude Code | Codex CLI | Gemini CLI | | ---------------------------------------------- | --------------------------------------------------- | --------------------------------------------------------- | | /plugin install react-skills@claude-settings | Open /plugins -> Claude & Codex Settings -> install react-skills | gemini extensions install --path ./plugins/react-skills |

Skills CLI

npx skills add https://github.com/fcakyon/claude-codex-settings/tree/main/plugins/react-skills --skill '*'

React and frontend best practices from vercel-labs/agent-skills.

Skills (ZIP for claude.ai, Claude Code, Cursor, Codex, VS Code):

| Skill | Description | ZIP | | ----------------------------------------------------------------------------------------- | ---------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | composition-patterns | React composition patterns: compound components, render props, context | [![ZIP]