Author a PostHog canvas with semantic HTML, CSS, and direct browser APIs — documents, articles, generative graphics, 2D canvas and WebGL experiences, and focused experiments where React components add no useful structure. Use after building-canvases has routed a canvas request to a plain-HTML/browser-API implementation.
Install
npx skills add PostHog/ai-plugin --skill building-html-canvasesnpx skills add PostHog/ai-plugin --skill building-html-canvases -a claude-code -gnpx skills add PostHog/ai-plugin --skill building-html-canvases -a codex -ggemini skills install https://github.com/PostHog/ai-plugin.git --path skills/building-html-canvasesgh skill install PostHog/ai-plugin building-html-canvasesgit clone --depth 1 https://github.com/PostHog/ai-plugin /tmp/PostHog__ai-plugin
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/PostHog__ai-plugin/skills/building-html-canvases ~/.claude/skills/building-html-canvases # Claude Code
cp -R /tmp/PostHog__ai-plugin/skills/building-html-canvases ~/.agents/skills/building-html-canvases # Codex, Cursor, Gemini CLI, Copilot, OpenCode