What probably matters to youSection of the release
What
A plugin marketplace file can now declare metadata.pluginRoot once at the top, and entries whose source is a bare name (not a ./relative/path) are resolved inside that folder. If pluginRoot is absent, or points outside the marketplace directory, the entry loads as a stub carrying an explanatory error rather than failing quietly.
Details
Applies only to bare source names; relative paths behave as before.
pluginRoot must itself be a relative path contained by the marketplace root.
One source agreesOne thing we can check says the same as this entry.
Anthropic's release notes agreeFixed marketplace metadata.pluginRoot having no effect: bare plugin source names now resolve under it as the docs describe
