AI Agent Skill Library in Action | Dev Tools Articles: Fast-Rising Open Source Projects in MCP (Oct 2026)

In MCP, these open-source projects are gaining stars fast. Sorted by star count, each entry below says what it does and who it's for. (coding ai review)

1. affaan-m/ECC

Owner: affaan-m ｜ Stars: 259,521

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

• Repository: affaan-m/ECC

2. n8n-io/n8n

Owner: n8n-io ｜ Stars: 205,259

Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.

• Repository: n8n-io/n8n

3. morluto/rea

Owner: morluto ｜ Stars: 203,487

Reverse engineer anything with agents, from app behavior down to native binaries.

• Repository: morluto/rea

4. langgenius/dify

Owner: langgenius ｜ Stars: 155,800

Build Agentic workflows, RAG pipelines, with rich AI model and tool support on one collaborative workspace. Deploy on cloud, VPC, or self-hosted, so teams move from prototype to production without rebuilding the stack.

• Repository: langgenius/dify

5. open-webui/open-webui

Owner: open-webui ｜ Stars: 152,122

User-friendly AI Interface (Supports Ollama, OpenAI API, ...)

• Repository: open-webui/open-webui

6. farion1231/cc-switch

Owner: farion1231 ｜ Stars: 143,767

A cross-platform desktop All-in-One assistant for Claude Code, Codex, OpenCode, OpenClaw, Grok Build & Hermes Agent. Only official website: ccswitch.io

• Repository: farion1231/cc-switch

7. Graphify-Labs/graphify

Owner: Graphify-Labs ｜ Stars: 118,125

Turn any codebase, with its docs, SQL schemas, configs, and PDFs, into a queryable knowledge graph. A /graphify skill for Claude Code, Cursor, Codex, and Gemini CLI: local deterministic AST parsing, every edge explained, no vector store.

• Repository: Graphify-Labs/graphify

8. google-gemini/gemini-cli

Owner: google-gemini ｜ Stars: 107,065

An open-source AI agent that brings the power of Gemini directly into your terminal.

• Repository: google-gemini/gemini-cli

9. paperclipai/paperclip

Owner: paperclipai ｜ Stars: 101,508

The open-source app everyone uses to manage agents at work

• Repository: paperclipai/paperclip

10. Panniantong/Agent-Reach

Owner: Panniantong ｜ Stars: 96,967

Give your AI agent eyes to see the entire internet. Read & search Twitter, Reddit, YouTube, GitHub, Bilibili, XiaoHongShu — one CLI, zero API fees.

• Repository: Panniantong/Agent-Reach

Direct links

• View details: ECC
• View details: n8n
• View details: rea
• View details: dify
• View details: open-webui
• View details: cc-switch
• View details: graphify
• View details: gemini-cli

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Curated by StackPilot —— the ai agent skill library. Browse all categories for the full directory.