Add --marketplace to /plugin install

Add a marketplace and install in one command

To install a plugin from a marketplace you haven't added yet, name the marketplace source with --marketplace. Requires Claude Code v2.1.275 or later.

/plugin install quality-review-plugin --marketplace your-org/plugins

The source takes the same forms as /plugin marketplace add, such as GitHub owner/repo, a git URL, or a local path, except that it can't contain spaces. Give the plugin name bare, without an @marketplace suffix.

Claude Code shows the source it resolved and asks you to confirm before adding the marketplace. Declining cancels the install and adds nothing. Once the marketplace is added, the plugin's details open and you choose an installation scope. If the source matches a marketplace you've already added, Claude Code skips the confirmation and opens the plugin's details in that marketplace.