Rubric Labs publishes field guide on designing always-on agents like Grok Bot and Muse

_AustinCalvert_ · x · 2026-11-08

Rubric Labs engineer Dexter Storey published an 8-minute field guide on designing always-on agents like Muse, GrokBot and Instinct.

Key points:

The author argues disagreements about whether we've reached AGI are more about form factor than model capability: the ideal is a Jarvis-like agent that is single-threaded, proactive, and situationally aware, versus today's ephemeral, reactive, context-dependent chatbots.
Single-threading means one agent handles everything (canceling meetings, ordering soup, checking symptoms, booking a doctor when you're sick) — the hard part is context window management.
The post covers architecture design and current model limitations that make this form factor hard to build.

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