Dispatch
Simon Willison: JavaScript Sandboxing with Node.js Worker Threads via Claude Code Research
Willison used Claude Code to run a research task exploring whether Node.js worker threads (inspired by Aaron Harper's analysis) can safely sandbox JavaScript execution without full container overhead. The investigation produced working proof-of-concept sandboxing patterns applicable to agentic coding environments that need to execute untrusted or generated JS code. Relevant to any builder running LLM-generated code in production agent pipelines.
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