Use it now
Startup now registers a built-in skill for creating or customizing a Cowork plugin
What
Claude Code's startup process now registers an additional built-in skill alongside its existing ones, for creating a Cowork plugin. Its description tells Claude it can create a new Cowork plugin from scratch, or customize an already-installed plugin for a specific organization.
Why
Registering the skill at startup makes this plugin-creation capability available to Claude automatically, without the user having to discover or invoke it manually.