Claude spawns 1,000+ subagents to build a full OS from an empty folder over 8 days
CodeByPoonam · x · 2026-11-11
An Anthropic engineer tasked Claude Fable 5.2 with building an entire OS from an empty folder. Per CodeByPoonam's recap: Claude spun up 1,000+ subagents working around the clock for 8 days — writing code, testing, fixing bugs, and reviewing each other's work. The result boots on a real laptop with its own kernel, hardware drivers, file storage, windowing and a login screen, plus built-in Claude features. Shared as part of the Fable 5.2 launch.
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