SMRTR ProgrammingFeb 3, 2026Hacker News

Sandboxing untrusted code using WebAssembly

SMRTR summary

Capsule is a WebAssembly-based runtime that executes AI agent tasks in isolated sandboxes with configurable CPU, memory, and timeout limits. Each task runs independently with automatic retries and failure containment, supporting both Python and TypeScript/JavaScript. The system provides structured JSON responses with execution metadata and enables secure execution of untrusted code in multi-agent workflows.

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