#2 · Primary category： AI Coding Assistants
ECC
The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
Project last updated：08/29/26
GitHub Stars
244.2K
Forks
36.9K
Contributors
347
License
MIT
Why we included this project
ECC is a workflow layer for coding agents like Claude Code, Codex, Opencode, and Cursor. Install it once and it adds a plan-test-implement-review-verify loop, a library of specialized agents and skills for planning, build repair, security, and domain work, and memory that carries context across sessions so the agent stops re-deriving what it already knows. The AgentShield component scans prompts, hooks, MCP configuration, and permissions for risky patterns before they cause trouble. Teams running the same agent across several harnesses get consistent, repeatable behavior from the guided installers and multi-harness support, and the MIT license keeps the core free to adopt.
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