coderunner

Why we included this project

Dangerous for development teams: letting Claude Code, Gemini CLI, or similar agents run arbitrary commands on your laptop puts your files and credentials one bad prompt away from disaster. CodeRunner gives those agents a local sandbox, an isolated container on your Mac where Python code and other tasks execute without touching the host. Its MCP server exposes tools for running code, scraping pages with Playwright, and handling document skills, and it supports named sessions so separate agent runs stay isolated. You can stop and resume the same container to keep installed packages and kernels, or rebuild it on a host-only network with zero internet access for stricter isolation. It works with several agent frontends through standard MCP configuration, so if you trust the agent but not its reach, this gives you a clean boundary to work behind.