You can now add a claude.ai-hosted plugin marketplace with a new --claudeai flag.
A new plugin marketplace add --claudeai <name> option is wired end-to-end: a claudeai plugin/marketplace source kind is now accepted throughout install/eligibility/hostPattern checks alongside github/git/url, catalog files for it are stored under a .marketplace-<id>.json naming scheme, and adding a marketplace whose name starts with the reserved claude.ai prefix without --claudeai is now explicitly refused. Installed plugins from this source also get new fields recorded: claudeaiPluginId and archiveSha256.
New helper functions gl, gUe, and hUe let marketplace/plugin lookups fall back to a locally-synced 'claude.ai marketplace registry' file (read via RF()) whenever the normal known_marketplaces.json-derived cache lookup misses or the cache file is unreadable (ENOENT). Previously these lookups just returned null on a cache miss; now they resolve entries against the registry and, for plugins, can synthesize a claudeai-sourced plugin entry from account plugin data (Ap().plugins).
The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.
To add a marketplace from that list in your shell instead, run `claude plugin marketplace add` with the `--claudeai` flag and the name the list shows:discover-plugins see the edit
| `--sparse <paths...>` | Limit checkout to specific directories via git sparse-checkout. Useful for monorepos | |plugin-marketplaces see the edit
To add one from your shell, run `claude plugin marketplace add` with the `--claudeai` flag and the name shown in the list:discover-plugins see the edit
* To add or change the secret later, remove the server with `claude mcp remove <name>`, then add it again with `--client-secret` and the same `--scope`mcp see the edit
Other fields, such as `pluginId`, `scope`, and `failureCode`, appear only when they apply. The `--json` option on `plugin uninstall`, `plugin update`, `plugin enable`, and `plugin disable` prints the same object with that subcommand's own …plugins-reference see the edit
Anthropic's documentation has since written up --scope, on Plugins reference.