Guides development of Claude Code slash commands, including file format, YAML frontmatter fields, dynamic arguments ($ARGUMENTS, $1/$2), file references, bash execution, and command organization. Activates when the user asks to create a slash command, add a command, define command arguments, use command frontmatter, organize commands, create commands with file references, or needs guidance on command development best practices.
$npx -y skills add jawhnycooke/claude-plugins --skill command-developmentInstalls into the current project.
Run `npx skills use "https://github.com/jawhnycooke/claude-plugins" --skill "jawhnycooke/claude-plugins/command-development"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/jawhnycooke/claude-plugins" that are relevant to the current task. Run `npx skills add "https://github.com/jawhnycooke/claude-plugins"` and select the relevant skills, then follow their instructions.