Story · Claude Blog (claude.com)
Customize Claude Code with mods in TypeScript (Claude Blog (claude.com))
blog post · Story page
Mods are small TypeScript functions that rewrite a prompt, draw new UI or replace a built-in feature, which hooks could never do. They run with the same access to your machine as Claude Code itself, they aren't sandboxed, and the post says to install them only from sources you trust.
In plain words
- Claude Code introduced small add-ons called mods that let users change how the coding assistant works.
- These add-ons can rewrite instructions, change what appears on screen, or replace features already in the program.
- The announcement says to install only trusted add-ons because they have the same computer access as Claude Code.
- Developers can adapt Claude Code to their own work without waiting for its makers to add a feature.
Appeared in
- Six ways an agent harness can run something other than what you approved
Oct 02, 2026 · in the sections
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