Catch security issues as Claude writes code changedsecurity-guidance
Nearest release: v2.1.302, published 3 hours before upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.
Upstream edited this page at 16 Oct 2026 20:27 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 16 Oct 2026 20:37 UTC.
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First seen
14 Aug 2026
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Recorded edits15to this page, all time
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3434If the install fails, match the message Claude Code reports:
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3636* `Marketplace "claude-plugins-official" not found`: add the marketplace with `/plugin marketplace add anthropics/claude-plugins-official`, then retry the install.
37* The plugin is [not found in the marketplace](/docs/en/plugins/install#install-a-plugin): check the plugin name.
37* `Plugin "<name>" not found in marketplace "claude-plugins-official"`: your local copy of the marketplace catalog may be out of date. Refresh it with `/plugin marketplace update claude-plugins-official`, then retry the install. If the retry prints the same message, see [Plugin not found in marketplace](/docs/en/plugins/troubleshooting#plugin-not-found-in-marketplace).
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3939Check the install summary. If it reports `Run /reload-plugins to apply.`, see [Apply plugin changes without restarting](/docs/en/plugins/cli-reference#reload-plugins) to activate the plugin in your current session.
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No line in this hunk matches that.