The best AI GitHub repos right now: May 2026 edition

TL;DR

Ten GitHub repos worth your attention this May: the strongest AI and developer repos our directory tracks, ranked by stars, forks and editorial signal. Each link opens the full review on My AI Guide; the GitHub link below goes to the source repo.

The standout repos right now

1. superpowers: 214,148 stars

Claude skills for dev & debugging.

GitHub: obra/superpowers. Category: Plugin.

2. everything-claude-code: 201,126 stars (8.7/10 editor rating)

Everything Claude Code (ECC) by Affaan Mustafa is the most-starred meta-system for AI coding agent harnesses on GitHub.

GitHub: affaan-m/everything-claude-code. Category: Coding Assistant.

3. ollama: 172,788 stars (9.2/10 editor rating)

Ollama is an open-source local LLM runner by the Ollama team that lets you download and run 50+ AI models on your own hardware with a single command.

GitHub: ollama/ollama. Category: Tools.

4. skills: 144,859 stars (9.5/10 editor rating)

Anthropic Agent Skills is the official reference with 112,252 stars: the most-forked Claude skills library on GitHub.

GitHub: anthropics/skills. Category: Coding Assistant.

5. system-prompts-and-models-of-ai-tools: 138,648 stars (8.7/10 editor rating)

System Prompts and Models of AI Tools by x1xhlol is the most comprehensive third-party archive of internal system prompts from commercial AI coding products including Cursor, Claude Code, Devin AI, Lovable, Perplexity.

GitHub: x1xhlol/system-prompts-and-models-of-ai-tools. Category: Research.

6. langchain: 138,172 stars (8.8/10 editor rating)

LangChain tops AI frameworks at 132,668 GitHub stars: the go-to for Python developers tackling complex LLM apps.

GitHub: langchain-ai/langchain. Category: AI Agents.

7. claude-code: 129,132 stars (8.5/10 editor rating)

Claude Code tops agentic coding CLIs at 110k GitHub stars: Anthropic's official tool outpaces Cursor on execution autonomy.

GitHub: anthropics/claude-code. Category: Coding Assistant.

8. firecrawl: 127,004 stars

Firecrawl scraping plugin.

GitHub: firecrawl/firecrawl-claude-plugin. Category: Plugin.

9. generative-ai-for-beginners: 111,555 stars (9/10 editor rating)

Generative AI for Beginners is Microsoft's free 21-lesson curriculum on LLM fundamentals, prompt engineering, RAG, image generation, and AI agents through Jupyter notebooks.

GitHub: microsoft/generative-ai-for-beginners. Category: Tutorial.

10. spec-kit: 107,420 stars (9/10 editor rating)

GitHub Spec Kit is an open-source toolkit by GitHub that brings spec-driven development to AI coding agents, with slash commands for constitution, specify, plan, tasks, and implement.

GitHub: github/spec-kit. Category: Coding Assistant.

What this means for builders

The pattern across this month's standouts: practical, focused tools rather than experimental research drops. Builders who pick from this list get repos that other developers are actively using right now, with active maintenance.

If you want a comprehensive view of every tool we cover, head to our repos index. New monthly digests publish on the 1st of each month.