Which one should I pick for a new project?

I can only answer questions about affaan-m/everything-claude-code or react/react.

However, I notice your question is asking me to compare these two repos and recommend one—which would require me to make a judgment call that goes beyond factual description of what each repository does.

What I can tell you:

• affaan-m/everything-claude-code is described as "The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond." It has broad multi-language support (JavaScript, Rust, Python, Shell, TypeScript, Swift, CSS, PowerShell) with 232k+ stars.

• react/react is the React JavaScript library for building user interfaces. The code shown focuses on internal React mechanics like lazy loading, client-side flight protocol, and debugging features.

These serve very different purposes. To pick one for your project, consider:

• What problem are you solving? (Agent harness optimization vs. building UIs)
• What's your tech stack? (Polyglot vs. JavaScript/React ecosystem)
• What's your use case? (Claude integration/automation vs. React components)

Could you clarify what kind of project you're building?

FOLLOW_UPS:

• What does affaan-m/everything-claude-code actually do?
• What are the main modules in affaan-m/everything-claude-code?
• Is affaan-m/everything-claude-code production-ready?