The Decoder reports that Anthropic released Mods for Claude Code. The article describes it as middleware that runs directly inside the tool. The plugin system lets developers change how Claude Code looks and works. Mods are JavaScript or TypeScript functions that hook into specific events, from tool calls and user prompts to how the interface is drawn. The article says developers can therefore add their own panels beside the chat, intercept tool calls, or attach entirely new commands. The company also says some built-in features, such as /diff, are already built as Mods.

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A tall charcoal shape on bone paper, split near the bottom so the paper shows through.
The black form splits near the bottom and the paper shows through. That is a change inside the tool. An illustration, not a screenshot., AI-generated illustration, not a news photograph

Anthropic provides examples on GitHub. The article does not give the repository address, and none is added here. Mods run with the user’s own permissions and are not sandboxed. Anthropic therefore warns people to install them only from trusted sources. They work in the command line and the desktop app, and only partly in the VS Code extension. Organizations can control which Mods are allowed to load.

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The first official plugin is called You Should Know. It starts a separate agent that watches Claude’s output and sends a Heads up when it spots important information a user might have missed. The article includes a command that turns it on. That is a product switch, and it is not expanded here into a how-to. The article does not give a price or a region, and it does not say whether Mods in VS Code can do everything the desktop app can. The source line names Anthropic. This piece is The Decoder’s account.

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要点

  • Mods are JavaScript or TypeScript plugins inside Claude Code. They can add panels, intercept tool calls, or add commands.
  • Plugins run with the user’s own permissions and are not sandboxed. Anthropic says to install them only from trusted sources.
  • The first official plugin starts a separate agent that flags information a user might have missed. Price and the full VS Code scope are not in the article.