claude-codex-settings

# 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

Claude Code's auto-compact summarizes long sessions to fit the context window, but the default summary routinely drops the highest-signal facts: file paths under investigation, confirmed root causes, remaining tasks, unanswered questions, metrics and IDs, and findings from expensive subagent runs. This plugin ships a single PreCompact hook that injects A-F fidelity requirements on top of the 9-section default compact prompt, so those categories survive every /compact (manual) and every auto compaction. Active on Claude Code only; Codex, Cursor, and Gemini CLI do not yet expose a PreCompact hook.

Hooks:

• precompact_priorities.sh - Priority-preservation instructions for the compaction summarizer

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

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

Python coding guidelines grounded in authoritative sources: PEP 8, PEP 20 (Zen of Python), Google Python Style Guide, and Brett Slatkin's "Effective Python" (3rd ed.). Covers code integration, idiomatic patterns, YAGNI anti-abstraction rules, Google-style docstrings, and 18 before/after code examples.

Skills:

Reference files:

• zen-of-python.md - Full PEP 20 with annotations
• google-style-guide.md - Curated sections with source URLs
• idiomatic-patterns.md - 18 patterns with before/after code
• effective-python-tips.md - Key tips from 3rd edition

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
react-best-practices	64 React/Next.js performance rules from Vercel Engineering
react-native-skills	35+ React Native/Expo rules for performance and animations
react-view-transitions	View Transition API for page/route animations
web-design-guidelines	UI review against 16 web interface guideline categories

Skills CLI

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

Browser automation via CLI instead of MCP. 93% less context usage than Playwright MCP by using snapshot + element refs instead of full DOM tree dumps. From vercel-labs/agent-browser.

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

Skill	Description	ZIP
agent-browser	Browser automation: navigation, forms, clicking, screenshots, auth, sessions
electron	Automate Electron desktop apps (VS Code, Slack, Discord, Figma, Notion)

CLI Tool: agent-browser - install via npm i -g agent-browser && agent-browser install

Skills CLI

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

Frontend design skills from anthropics/claude-plugins-official and openai/skills.

Skill	Description	Install
openai-frontend-design	Composition-first design: restrained layout, image-led hierarchy, tasteful motion
anthropic-frontend-design	Bold aesthetic direction, distinctive typography, anti-generic AI aesthetics

Skills CLI

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

Official MongoDB agent skills for schema design, query tuning, Atlas Search, and connections. From mongodb/agent-skills.

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

Skill	Description	ZIP
atlas-stream-processing	Atlas stream processing patterns
mongodb-connection	Connection management
mongodb-mcp-setup	MCP server setup
mongodb-natural-language-querying	Natural language to queries
mongodb-query-optimizer	Query performance tuning
mongodb-schema-design	Schema design patterns
mongodb-search-and-ai	Atlas Search and AI integration

Skills CLI

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

Supabase skills covering Postgres query/schema best practices from supabase/agent-skills, JavaScript SDK usage from supabase/supabase-js, and CLI workflows from supabase/cli.

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

Skill	Description	ZIP
supabase-postgres-best-practices	Postgres performance and schema design across 8 categories
supabase-js	JavaScript SDK for auth, database, storage, realtime, edge functions
supabase-cli	CLI for local dev, migrations, edge functions, project management

Skills CLI

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

Official Stripe agent skills for payment integration: API selection, Connect platform setup, billing/subscriptions, Treasury, and SDK upgrades. From stripe/ai.

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