Overview
Modern web and agent architectures increasingly rely on secure, fast, and isolated environments to execute code (such as LLM-generated scripts).
Fast JavaScript Runtimes
Deno
Deno is a secure-by-default runtime for JavaScript and TypeScript built on V8 and Rust. It is excellent for running isolated, permission-gated agent tools.
Bun
Bun is an all-in-one, ultra-fast JavaScript runtime and toolkit (bundler, test runner, package manager) built from scratch using Zig and JavaScriptCore.
Pyodide (Python in WebAssembly)
Pyodide is a port of CPython to WebAssembly (Wasm). It allows you to run Python code securely inside the browser or Node.js.
- Use Case for AI: Extremely useful for Code-Interpreter agents that need to safely execute Python scripts generated by LLMs entirely on the client side without risking server exploitation.
TODO: Add sandboxing examples for agent code execution.