Anatomy of a 1,000-agent run: sandboxing, blocking classifiers, and offline monitoring

RLanceMartin · x · 2026-11-10

Lance Martin outlines the safety approach of the 1,000-agent experiment: sandboxing, real-time monitoring, and offline monitoring.

The architecture diagram adds specifics: each sandbox is its own lightweight VM with no network or credentials, reachable only via git and SQL pipes; a gateway runs a fail-closed blocking classifier on every tool call; the git repo accepts own-branch pushes only, and the shared Postgres role has time and size limits; run records live outside the sandboxes for offline review, with serious findings escalated to run owners.

Related event: Anthropic's 1000 Fable 5.2 Agents Fully Formalize Fermat's Last Theorem in 30 Hours(11 posts)→

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