Anthropic Launches Claude Code Mods for Custom UI, Safety Checks and Replay Tools
Summary
Anthropic launches Claude Code mods, enabling JavaScript or TypeScript plugins in version 2.1.287+ to add custom interfaces, pause dangerous commands such as rm -rf and git reset --hard, and replay file edits.
Key Points
- Anthropic introduces Claude Code mods, JavaScript or TypeScript plugin modules that can rewrite behavior, intercept events and draw custom UI; they are enabled by default in Claude Code 2.1.287 or later.
- The Token Weather example uses about 80 lines to display context-window usage above the prompt, shifting from Clear below 25% to Compact soon at 90% or more and retaining the last 12 readings across hot reloads.
- Blast Radius pauses risky Bash commands such as rm -rf, git reset --hard and force pushes for Proceed or Cancel confirmation, while Replay Theater records Edit and Write calls and replays a turn’s diffs via the r key or /replay command.