Anthropic adds Claude Code mods for behavior and interface changes

Anthropic has introduced mods for Claude Code that let users change its behavior, customize the interface and add their own features, according to an October 1 announcement from its ClaudeDevs account.

Developers can write a mod in TypeScript or ask Claude to build one. Mods are distributed inside plugins and installed using the /plugin command in the command-line interface or desktop application, the announcement said.

One example, Token Weather, displays context-window usage and a sparkline covering the last 12 turns. Another, Blast Radius, flags potentially risky shell commands before execution and shows the files or resources they would affect in a side pane.

A third example, Replay Theater, records file edits made during a turn. Users can run /replay to inspect the changes individually in a docked pane.

Users can keep mods private or submit them to the Claude directory. Anthropic cautioned that mods receive the same access to a user’s machine as Claude Code and advised installing them only from trusted sources.