Guide for creating effective fx/cc marketplace plugins. This skill should be used when users want to create a new Claude Code plugin (or update an existing plugin) for the fx/cc marketplace that extends Claude's capabilities with skills, commands, or hooks.
$npx -y skills add fx/cc --skill plugin-creatorInstalls into the current project.
Run `npx skills use "https://github.com/fx/cc" --skill "fx/cc/plugin-creator"` 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/fx/cc" that are relevant to the current task. Run `npx skills add "https://github.com/fx/cc"` and select the relevant skills, then follow their instructions.