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

114,357TypeScriptpermissive
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.

220,716JavaScriptpermissive
3

caveman

86

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

76,303Pythonpermissive
4

graphify

86

AI coding assistant skill (Claude Code, Codex, OpenCode, OpenClaw). Turn any folder of code, docs, papers, or images into a queryable knowledge graph

71,294Pythonpermissive
5

career-ops

86

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

55,452Gopermissive
6

prompt-master

84

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

9,744permissive
7

codex-plugin-cc

83

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

21,512JavaScriptpermissive
8

ponytail

82

Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote.

53,079JavaScriptpermissive
9

awesome-codex-subagents

82

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

5,301permissive
10

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

7,741TypeScriptpermissive
11

claude-obsidian

77

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

7,638Shellpermissive
12

skills

75

Claude Code skills based on The Minimalist Entrepreneur by Sahil Lavingia

9,203permissive
13

get-shit-done-redux

75

Getting Shit Done, the Aftermath

4,934JavaScriptpermissive
14

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

3,132JavaScriptpermissive
15

lottie

73

Open-source skill and harness for generating production ready Lottie animations with codex/claude code

3,690TypeScriptpermissive
16

diagram-design

71

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

2,627HTMLpermissive
17

wewrite

71

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

2,511Pythonpermissive
18

baoyu-design

69

Run Claude Design locally as an Agent Skill — Cursor, Claude Code & more. Produce polished UI mockups, prototypes, decks & wireframes as self-contained HTML, without claude.ai/design. Best with Opus 4.8.

1,835JavaScriptpermissive
19

chromex

67

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

1,137TypeScriptpermissive
20

dbskill

63

dontbesilent 的商业诊断 Skills for Claude Code

6,891unspecified

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