Proof launches agent-native document editor

Strong framing: this is less “AI writing tool” and more “collaboration layer for agent workflows,” which is a clearer wedge.

• –The agent-first angle is credible because the product center of gravity is shared docs, comments, and provenance, not a generic assistant sidebar.
• –The demo/message suggests a workflow fit for specs, PRDs, research notes, and implementation plans, where attribution and review matter.
• –If Proof can make agent writes feel auditable and low-friction, it could be more durable than plain text-generation apps.
• –Main risk: this category is crowded, and the product will need a sharp distribution story to avoid being seen as a niche docs clone with AI features.