Environment Virtualization Enables Autonomous Code Verification

Signadot argues that environment virtualization is necessary for autonomous code-generation agents to verify integrations and iterate without human intervention, citing Anthropic’s harness concept and Boris Cherny. The piece warns that spinning full clusters for each task (often taking ~15 minutes) cannot match LLM timescales (seconds), and proposes lightweight per-change sandboxes and routing headers to enable fast, low-cost, production-fidelity verification for hundreds of agents.