{"version":"2.1.287","anchor":"plugin-name-impersonation-check-in-marketplace-validation-an","canonical_anchor":"plugin-name-impersonation-check-in-marketplace-validation-an","heading":"Plugin names that imitate Anthropic's are now flagged when validated","tier":"notice","area":"Plugins","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.287\/e\/plugin-name-impersonation-check-in-marketplace-validation-an","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.287","markdown":"### Plugin names that imitate Anthropic's are now flagged when validated\n\nPlugin checks now give an error for names that start with claude-, anthropic- or similar, and a warning for looser look-alikes\n\n**Unclear.** It is not clear whether installing a plugin from a marketplace also enforces this, or only validation, tagging and loading from a path.\n\n**What**\n\nA plugin is an add-on that extends Claude Code, and a marketplace is a catalogue that offers plugins to install. Claude Code now checks plugin names for ones that could be mistaken for Anthropic's own. These names give an error:\n\n- Names starting with `claude-`, `anthropic-`, `anthropics-` or `cc-plugin-`\n\n- The names `claude-code` and `claude-mods`\n\n- Names that put \"official\" next to claude or anthropic\n\nNames that look similar in looser ways give a warning instead. The check runs when a marketplace is validated, on a plugin's own `plugin.json` file, and in the plugin validate command. In the release-tagging command, a plugin is only treated as Anthropic's own if its marketplace passes the Anthropic check. The error message also says that Claude Code refuses a plugin with such a name when it is loaded from a path, for example with `--plugin-dir`.\n\n**Why**\n\nAuthors of other marketplaces can now get hard errors for plugin names that resemble Anthropic's. If you publish plugins, rename any whose name starts with one of these prefixes.\n\n- Area: Plugins\n- Tier: You'll notice\n- Useful: 3\/5\n- Signal: 2\/5"}