Guide to effective Claude Code skill authoring using TDD methodology and persuasion principles. Triggers: skills, validation, skill, authoring, tdd, skill authoring, skill writing, new skill, TDD skills, skill creation, skill best practices, skill validation, skill deployment, skill compliance. Use when creating new skills, improving compliance, or validating quality before deployment.
Install
npx skills add athola/claude-night-market --skill skill-authoringnpx skills add athola/claude-night-market --skill skill-authoring -a claude-code -gnpx skills add athola/claude-night-market --skill skill-authoring -a codex -ggemini skills install https://github.com/athola/claude-night-market.git --path plugins/abstract/skills/skill-authoringgh skill install athola/claude-night-market skill-authoringgit clone --depth 1 https://github.com/athola/claude-night-market /tmp/athola__claude-night-market
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/athola__claude-night-market/plugins/abstract/skills/skill-authoring ~/.claude/skills/skill-authoring # Claude Code
cp -R /tmp/athola__claude-night-market/plugins/abstract/skills/skill-authoring ~/.agents/skills/skill-authoring # Codex, Cursor, Gemini CLI, Copilot, OpenCode