GAN-inspired Generator-Evaluator agent harness for building high-quality applications autonomously. Based on Anthropic's March 2026 harness design paper. Use when a feature should be built autonomously through generator and evaluator iteration until it clears a quality bar.
Install
npx skills add affaan-m/ECC --skill gan-style-harnessnpx skills add affaan-m/ECC --skill gan-style-harness -a claude-code -gnpx skills add affaan-m/ECC --skill gan-style-harness -a codex -ggemini skills install https://github.com/affaan-m/ECC.git --path skills/gan-style-harnessgh skill install affaan-m/ECC gan-style-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/skills/gan-style-harness ~/.claude/skills/gan-style-harness # Claude Code
cp -R /tmp/affaan-m__ECC/skills/gan-style-harness ~/.agents/skills/gan-style-harness # Codex, Cursor, Gemini CLI, Copilot, OpenCode