Nielsen's 10 usability heuristics. Use when auditing an interface, designing interaction flows, writing error messages or reviewing usability.
Install
npx skills add dembrandt/dembrandt-skills --skill nielsen-usability-heuristicsnpx skills add dembrandt/dembrandt-skills --skill nielsen-usability-heuristics -a claude-code -gnpx skills add dembrandt/dembrandt-skills --skill nielsen-usability-heuristics -a codex -ggemini skills install https://github.com/dembrandt/dembrandt-skills.git --path skills/nielsen-usability-heuristicsgh skill install dembrandt/dembrandt-skills nielsen-usability-heuristicsgit clone --depth 1 https://github.com/dembrandt/dembrandt-skills /tmp/dembrandt__dembrandt-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/dembrandt__dembrandt-skills/skills/nielsen-usability-heuristics ~/.claude/skills/nielsen-usability-heuristics # Claude Code
cp -R /tmp/dembrandt__dembrandt-skills/skills/nielsen-usability-heuristics ~/.agents/skills/nielsen-usability-heuristics # Codex, Cursor, Gemini CLI, Copilot, OpenCode