Cos

Local-first personal AI chief of staff that triages email, WhatsApp, and calendar onto one board.

PlatformWebNewfreeglobal

Cos is a local-first personal chief-of-staff layer on Claude Cowork that reads work email and personal WhatsApp, calendar, and voice notes, resolves each to the right person and history, and surfaces only what genuinely needs attention as cards on one shared work-and-life board, while building a private, compounding second-brain vault. It targets people who currently act as their own message router across too many channels and want one triaged view instead.

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