ECC
MCPMIT
Open-source agent harness performance optimization system with skills, memory, and security for AI coding tools.
243k·Developer Tools·Open source
agents
Open sourceMulti-harness agentic plugin marketplace with 93 plugins, 202 agents, 181 skills for Claude Code, Codex, Cursor, and mor
39kMIT
Multi-harness agentic plugin marketplace for Claude Code, Codex, Cursor, OpenCode, GitHub Copilot, and Google Antigravity
Pros
- +Single source of truth generates native artifacts for five agentic harnesses
- +Large catalog of production-ready plugins, agents, skills, and commands
- +Composable and isolated plugins with auto-discovery
- +Includes a three-layer evaluation framework for quality certification
Cons
- −Complex setup for non-Claude Code harnesses requiring cloning and generation
- −Large catalog may be overwhelming for new users
- −Requires understanding of multiple harness-specific configurations
Target audience: Developers and teams building agentic workflows across multiple AI coding tools who want reusable, production-ready components.
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