Best Open Source AI Agent Tools Tools

Open source ai agent tools tools, ranked by score and analyzed honestly. Part of our AI & Machine Learning coverage.

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

111,280TypeScriptpermissive
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.

217,883JavaScriptpermissive
3

caveman

86

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

74,622Pythonpermissive
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

68,812Pythonpermissive
5

career-ops

86

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

54,476Gopermissive
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

9,487permissive
7

codex-plugin-cc

83

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

21,217JavaScriptpermissive
8

awesome-codex-subagents

82

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

5,226permissive
9

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

7,745TypeScriptpermissive
10

ponytail

79

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

37,755JavaScriptpermissive
11

claude-obsidian

77

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

7,109Shellpermissive
12

skills

75

Claude Code skills based on The Minimalist Entrepreneur by Sahil Lavingia

9,147permissive
13

get-shit-done-redux

75

Getting Shit Done, the Aftermath

4,368JavaScriptpermissive
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

3,120JavaScriptpermissive
15

lottie

73

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

3,465TypeScriptpermissive
16

diagram-design

71

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

2,606HTMLpermissive
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

2,434Pythonpermissive
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.

1,571JavaScriptpermissive
19

chromex

67

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

1,136TypeScriptpermissive
20

dbskill

63

dontbesilent 的商业诊断 Skills for Claude Code

6,750unspecified

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