// Run code in a sandbox

sandcastle

Orchestrate sandboxed coding agents in TypeScript.

Open source Maintained For agents

IN ONE PARAGRAPH

sandcastle is orchestrate sandboxed coding agents in TypeScript.

Good for: Developers who want their agent (Claude Code, Codex, Cursor…) to run code in a sandbox.

Not for: people who don’t want to install and run tools themselves.

01How to start

1Read the official README for requirements and permissions.
2Install it as the official guide describes.
3Tell your agent the command exists (e.g. in AGENTS.md / CLAUDE.md) so it knows when to call it.

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Versions, why it is listed, for AI to read

Popularity evidence (third-party snapshots)

For AI agents