Open plans and HTML artifacts in a local browser canvas where the human annotates elements, chats, and approves or requests changes without leaving the page. Use when presenting a plan for review, or when feedback like "move this, change that" is easier pointed at than typed.
Install
npx skills add affaan-m/ECC --skill plan-canvasnpx skills add affaan-m/ECC --skill plan-canvas -a claude-code -gnpx skills add affaan-m/ECC --skill plan-canvas -a codex -ggemini skills install https://github.com/affaan-m/ECC.git --path .agents/skills/plan-canvasgh skill install affaan-m/ECC plan-canvasgit 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/plan-canvas ~/.claude/skills/plan-canvas # Claude Code
cp -R /tmp/affaan-m__ECC/.agents/skills/plan-canvas ~/.agents/skills/plan-canvas # Codex, Cursor, Gemini CLI, Copilot, OpenCode