Code Execution Tool

In depth

A server-side tool in the Claude API that lets the model run Bash commands and create, view, and edit files inside an Anthropic-hosted sandboxed container. The API executes everything within the same request, so your application never runs code or sends back tool results itself. The container has Python and common command-line tools pre-installed but no internet access, and you pass in your own data through the Files API. It is the usual way to give Claude data analysis, calculations, and file generation without building your own sandbox.

Primary source: platform.claude.com