1. affaan-m/ECC
The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
GitHub repository with 207,683 stars and 31,870 forks.
Trending score: 5.86; stars gained: +3,345; forks gained: +536.
Language: JavaScript
Topics: ai-agents, anthropic, claude, claude-code, developer-tools, llm