What's this about?
Zed, maker of the fast Rust-based code editor, announced Delta — not a feature in Zed, but an entirely new application. It's a multiplayer environment where you code with AI agents and review what they build, keeping the code and the conversation about the code permanently linked. Underneath is DeltaDB, which replicates both the conversation and your working files in real time to everyone in a thread. It's in private beta now.
What exactly does "captured between your commits" mean?
Git saves your work in commits — labeled snapshots you create deliberately, usually after finishing something. Everything that happened *between* two commits (the twelve attempts, the agent's reasoning, the thing you tried and reverted) is normally lost forever. DeltaDB records that in-between space and syncs it live to your teammates. Crucially, it sits alongside git rather than replacing it: colleagues who never install Delta still see an ordinary git repository.
What's the community saying?
- "Fix Zed first." The loudest recurring theme was frustration that Zed keeps announcing new products while the core editor has bugs and rough edges — including a linked discussion about developers not being able to see files agents create.
- Is this already obsolete? A prominent skeptic argued Delta was conceived around the Series B, and that frontier models and coding agents have advanced so much in twelve months that DeltaDB's features no longer add much over what agents do natively.
- Vendor lock-in worries. Commenters noted that unlike Zed itself, Delta looks like it comes with meaningful lock-in — good for investors, a reason for hesitation for everyone else.
- AI summaries of code are a genuine sore point. The single top comment wasn't about Delta at all: people dislike reading verbose LLM prose explaining terse code, where the summary is either longer than the code or silently skips the edge cases.
- The believers. Alpha testers were notably positive, one calling it very good compared to tools like Conductor, and others identifying real value in mentoring junior or less-technical contributors through inline comments on an agent conversation.