Polyphonic unifies multi-agent collaboration with cross-app memory sync

RileyRalmuto · x · 2026-08-22

Polyphonic aims to be a unified interface integrating all harnesses, agents, skills, MCPs, and workflows. The protocol will be open-sourced, providing an encryption layer for secure collaboration. Users can monitor cross-app sessions in one chat or delegate tasks to different models (Claude, GPT, Grok) while maintaining persistent memory and identities. It also features an integrated canvas for managing design artifacts.

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