Productivity

Give Claude Code an Automatic Codex Second Opinion on Every Plan

A 182-star skill that hooks Claude Code's ExitPlanMode so OpenAI Codex reviews every plan — architecture decisions and implementation approaches included — before you approve.

Stop Copying Skills Into Every Agent: Share One Skill Pool with MagicSkills

A 308-star local-first skill infrastructure layer from Peking University's Narwhal-Lab — install skills once, compose per-agent collections, sync to AGENTS.md or expose them as one tool.

Bootstrap 31 Cross-Agent Coding Skills with OK Skills

A 455-star curated collection of 31 SKILL.md directories plus a CLAUDE.md/AGENTS.md playbook, cloned once into Codex, Claude Code, Cursor, OpenClaw, and other SKILL.md-compatible tools.

Generate Production-Ready Skills with Claude Code Skill Factory

An 862-star toolkit that builds Claude skills, agents, hooks, slash commands, and mega-prompts through interactive Q&A — with nine ready-made skills included.

Build a Curated Skill Library with Shelves and Provenance Using ai-agent-skills

The ai-agent-skills CLI turns a flat pile of installed skills into a managed library with shelves, collections, and per-skill notes.

Design a 14-Screen App Onboarding Flow with One Claude Code Command

The App Onboarding Questionnaire skill analyses your codebase and builds a conversion-focused onboarding flow in your app's native framework.

Keep CLAUDE.md Accurate as Code Evolves with Caliber

Generate and continuously sync every AI context file — CLAUDE.md, AGENTS.md, cursor rules, copilot instructions — with deterministic scoring to prove it.

Wire a Complete Claude Code Workflow with project-starter

Install one plugin and get 7 auto-triggering agents, 26 slash commands, 14 skills, and 14 hooks for everyday development loops.

CodexSkillManager: Manage Codex and Claude Code Skills from a Native macOS App

A 1,371-star SwiftUI app that browses skills from ~/.codex and ~/.claude in one sidebar, renders every SKILL.md, and downloads remote skills from Clawdhub.

pm-claude-skills: 1,169 Skills That Do One Professional Task Properly

A 1,352-star library of plain-markdown skills — each bundling a framework, an output template, quality checks, and anti-patterns — covering work tasks like PRDs and life tasks like decoding a lease.

xcode-build-optimization-agent-skill: Benchmark, Plan, and Fix Slow Xcode Builds

A 1,215-star pack of six skills that benchmarks clean and incremental Xcode builds, audits over 40 documented checks, and writes an approval-gated optimization plan you can review in a PR.

skills-hub: One Skill Library, Synced Across 47 Coding Tools

Skills Hub stores each Agent Skill once in a central library at ~/.skillshub, then syncs it to 47 supported coding tools by symlink or copy — with tags, bulk actions, and scheduled updates.

skales-desktop-agent: Run Agent Skills in a Local-First Desktop AI

Skales is a 1,842-star desktop agent for Windows, macOS, Linux, Android, and iOS that imports the SKILL.md format used by Claude Code, keeps its data in a folder on your machine, and works with 15+ AI providers or fully offline.

image-to-editable-ppt-skill: Rebuild Slide Images as Editable PowerPoint

ningzimu's 2,306-star Codex skill converts slide images, PDFs, and image-only PPTX decks into editable PowerPoint files — text back as native text boxes, shapes as shapes, complex visuals as image assets.

claudekit-skills: A 40+ Skill Plugin Marketplace for Claude Code

A 2.2k-star Claude Code Plugin Marketplace covering backend, AI tooling, design, devops, databases, payment, debugging, and problem-solving — installable per-category with the /plugin marketplace add command.

buildwithclaude: A Plugin Marketplace and Discovery Hub for Claude Code

A 3.4k-star MIT hub that bundles 117 agents, 175 commands, 28 hooks, and 51 plugins behind one marketplace command — plus a discovery platform indexing 20k+ community plugins and 4,500+ MCP servers.

dimillian/skills: Thomas Ricouard's 16 Codex Skills for Apple Platforms and Code Review

A 3.9k-star MIT-licensed collection of 16 self-contained skills from the Ice Cubes developer — four-agent bug hunts, review swarms, App Store release notes from git history, iOS simulator debugging, and macOS packaging without Xcode.

awesome-agent-skills: A Curated Chinese-Language Skills Index

A 5k-star curated list published in Simplified Chinese with translations to English and Japanese, organised around a 'few but excellent' rule and ~45 skill entries grouped by programming, content, and product use.

skills-manager: A Desktop App and CLI to Manage Agent Skills Across 53 Coding Tools

A 4.2k-star Tauri 2 desktop app with an accompanying CLI that unifies skill management across Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode, Hermes, and 46 more agents — with presets, workspaces, Git-based sync, and per-skill deploy targets.

cc-sdd: Spec-Driven Development as Agent Skills

A minimal SDD harness that installs as agent skills and walks a project from discovery through requirements, design, tasks, and autonomous implementation with per-task independent review.

skillhub: A Self-Hosted Registry and Governance Platform for Private Agent Skills

An on-premise registry where teams publish, version, and govern agent skills under namespaced RBAC with audit logs, pluggable S3 storage, and Prometheus + Grafana monitoring — complementary to open skill catalogs.

antfu/skills: Anthony Fu's Curated Skill Library, Generated Where Possible

A collection of 18 agent skills organised into hand-written (2), documentation-generated (8), and vendored (8) sets, covering the Vite and Nuxt ecosystem plus broader web-tooling conventions.

qiaomu-anything-to-notebooklm: One Skill, Many Inputs, NotebookLM as the Backend

A Claude Code skill that turns WeChat articles, paid sites, podcasts, videos, and office files into NotebookLM-generated podcasts, PPTs, mind maps, quizzes, and reports via a single natural-language prompt.

cangjie-skill: Distill a Book or Long Video Into a Pack of Executable Agent Skills

An 8k-star Chinese-origin skill that runs the RIA-TV++ pipeline on books, long videos, and podcasts and outputs a structured repo of SKILL.md modules with trigger conditions, scope boundaries, and test prompts — not a summary.

Programmatic Access to NotebookLM with notebooklm-py

An unofficial Python API, CLI, MCP server, and agent skill for Google NotebookLM (now Gemini Notebook) — generate audio overviews, video explainers, slide decks, infographics, quizzes, and reports, and use it as cross-session memory for Claude Code.

Install Agent Skills Across 70+ Tools with the skills CLI

Use vercel-labs/skills (npx skills) to list, install, and try skills from any GitHub repo without guessing paths or agent-specific copy steps.

Use Obsidian Agent Skills to Supercharge Your Note-Taking Workflow

How to install and use kepano/obsidian-skills to let your AI agent manage Markdown notes, Bases, and JSON Canvas files in Obsidian.

AI-Powered Product Management: From Discovery to Launch

How to use phuryn/pm-skills to let your AI agent run structured PM workflows: discovery, strategy, execution, research, and go-to-market.