Throwaway HTML mockups: 2-3 design variants to compare.
Install
npx skills add NousResearch/hermes-agent --skill sketchnpx skills add NousResearch/hermes-agent --skill sketch -a claude-code -gnpx skills add NousResearch/hermes-agent --skill sketch -a codex -ggemini skills install https://github.com/NousResearch/hermes-agent.git --path optional-skills/creative/sketchgh skill install NousResearch/hermes-agent sketchgit clone --depth 1 https://github.com/NousResearch/hermes-agent /tmp/NousResearch__hermes-agent
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/NousResearch__hermes-agent/optional-skills/creative/sketch ~/.claude/skills/sketch # Claude Code
cp -R /tmp/NousResearch__hermes-agent/optional-skills/creative/sketch ~/.agents/skills/sketch # Codex, Cursor, Gemini CLI, Copilot, OpenCode