Shippo plugin (shippo-plugin.zip, for the Claude apps: claude.ai / Claude Desktop / Cowork) and knowledge pack (shippo-knowledge-pack.md, a skills-as-context document for ChatGPT / Gemini / other assistants), both built from the canonical skills. Add the plugin via the app's Plugins UI (admins can provision it org-wide via Organization settings → Plugins); add the knowledge pack as a Project file, Custom GPT knowledge, or an attachment.