When people and Agents share the same documents, "who changed this, when, and why" stops being a nice-to-have. Every write to SharedContext is a commit — nothing is ever silently overwritten.
The timeline view.
Each document and folder has a history timeline. Click any entry and you see the document exactly as it was at that moment — the original, not a diff reconstruction. Agent writes carry the rationale the Agent recorded at commit time.
Recovery is built in.
A wrong change is one revert away, and deleted documents move to a trash you can restore from. Letting an Agent work directly in your Context is safe because no action is destructive.