Best Open Source Claude Code & Codex Skills

Skill libraries, prompt packs, and add-ons for coding agents like Claude Code, Codex, and OpenCode.

Ranked by score. Updated weekly.

1

gstack

91

Use Garry Tan's exact Claude Code setup: 15 opinionated tools that serve as CEO, Designer, Eng Manager, Release Manager, Doc Engineer, and QA

94,069TypeScriptpermissive
2

everything-claude-code

86

The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.

179,780JavaScriptpermissive
3

caveman

86

🪨 why use many token when few token do trick — Claude Code skill that cuts 65% of tokens by talking like caveman

58,463Pythonpermissive
4

career-ops

83

AI-powered job search system built on Claude Code. 14 skill modes, Go dashboard, PDF generation, batch processing.

44,157Gopermissive
5

codex-plugin-cc

83

Use Codex from Claude Code to review code or delegate tasks.

18,259JavaScriptpermissive
6

prompt-master

82

A Claude skill that writes the accurate prompts for any AI tool. Zero tokens or credits wasted. Full context and memory retention

7,374permissive
7

gsd-2

80

A powerful meta-prompting, context engineering and spec-driven development system that enables agents to work for long periods of time autonomously without losing track of the big picture

7,362TypeScriptpermissive
8

awesome-codex-subagents

78

A collection of 130+ specialized Codex subagents covering a wide range of development use cases.

4,574permissive
9

skills

75

Claude Code skills based on The Minimalist Entrepreneur by Sahil Lavingia

8,594permissive
10

chrome-cdp-skill

74

Give your AI agent access to your live Chrome session — works out of the box, connects to tabs you already have open

3,022JavaScriptpermissive
11

claude-obsidian

73

Claude + Obsidian knowledge companion. Persistent, compounding wiki vault based on Karpathy's LLM Wiki pattern. /wiki /save /autoresearch

4,766Shellpermissive
12

wewrite

67

公众号文章全流程 AI Skill for Claude Code — 热点抓取 → 选题 → 写作 → SEO → 视觉AI → 排版 → 微信草稿箱

1,897Pythonpermissive
13

chromex

67

A Codex-powered Chrome side-panel assistant for page context, tabs, voice, and image workflows.

1,077TypeScriptpermissive
14

diagram-design

61

Thirteen editorial diagram types for Claude Code. Self-contained HTML + SVG. No shadows, no Mermaid-slop.

2,316HTML
15

dbskill

59

dontbesilent 的商业诊断 Skills for Claude Code

4,637unspecified

Explore More Categories