Formal evaluation framework for Claude Code sessions implementing eval-driven development (EDD) principles
Install
npx skills add affaan-m/ECC --skill eval-harnessnpx skills add affaan-m/ECC --skill eval-harness -a claude-code -gnpx skills add affaan-m/ECC --skill eval-harness -a codex -ggemini skills install https://github.com/affaan-m/ECC.git --path .agents/skills/eval-harnessgh skill install affaan-m/ECC eval-harnessgit clone --depth 1 https://github.com/affaan-m/ECC /tmp/affaan-m__ECC
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/affaan-m__ECC/.agents/skills/eval-harness ~/.claude/skills/eval-harness # Claude Code
cp -R /tmp/affaan-m__ECC/.agents/skills/eval-harness ~/.agents/skills/eval-harness # Codex, Cursor, Gemini CLI, Copilot, OpenCode