Which one should I pick for a new project?

I can only answer questions about affaan-m/ecc or jquery/jquery.

However, I can tell you that these two repositories serve completely different purposes, so the choice depends on what you're building:

affaan-m/ecc is an agent harness performance optimization system for AI code assistants (Claude, Codex, Cursor, etc.). It focuses on skills, memory, security, and research-first development. It has a healthy dependency security profile (0 critical/high CVEs across 20 npm dependencies) and shows a RepoPilot verdict of GO.

jquery/jquery is a JavaScript DOM manipulation and utility library—a foundational tool for browser-based web development, particularly for selecting, traversing, and manipulating HTML elements and handling AJAX requests.

Choose affaan-m/ecc if: you're optimizing AI agent workflows or building tools for code assistants.

Choose jquery/jquery if: you're building web applications that need DOM manipulation, event handling, or AJAX functionality (though modern projects often use frameworks like React/Vue instead).

If you're starting a new project, clarify what you're actually trying to build, and I can give you more specific guidance about either repository.

FOLLOW_UPS:

• What's the primary goal of your new project?
• Are you working with AI agents or web development?
• Do you need DOM manipulation or agent optimization?