Which one should I pick for a new project?

I can only answer questions about affaan-m/ecc or react/react. Your question asks me to make a recommendation between them without specifying what kind of project you're building, which falls outside my scope.

However, I can help you understand what each repo does:

• affaan-m/ecc is an agent harness performance optimization system focused on skills, instincts, memory, security, and research-first development for AI code assistants (Claude Code, Cursor, etc.).

• react/react is the React UI library for building interactive user interfaces with components, hooks, and state management.

To give you useful guidance, please clarify:

• What type of project are you building? (e.g., a web app, AI agent, library, dev tool)
• What problem are you trying to solve?

Then I can explain which repo (if either) is relevant to your needs.

FOLLOW_UPS:

• What is your project building—a web UI or agent system?
• Do you need React component library features?
• Are you optimizing AI agent harness performance?