Zed Delta is a standalone agent interface rather than a conventional editor with chat attached. Projects are organized around threads, and DeltaDB records the operations between commitsAn AI execution trace is a structured record of the steps, tool calls, state changes, and outputs produced during an AI workflow. so a developer can move from a line of code to the conversation that produced it, or from a conversation back to the corresponding changes.
The app remains compatible with existing Git repositories while adding multiplayer collaboration through CRDTs. Teammates can join a shared threadHuman-AI collaboration combines human judgment and accountability with AI speed, generation, analysis, and tool use in a shared workflow., inspect its history, edit prompts and continue working with the same agent. A WebAssembly browser version uses the same Rust application without requiring a local installation.
In the demonstration, the agent inspects a new Next.js projectAn AI coding agent is a tool-using AI system that can inspect, modify, and validate software within a repository., asks clarifying questions, writes and commits a design specification and implementation planSpecification-driven development defines intended behavior and acceptance criteria before implementation begins., then works inside an isolated DeltaDB-backed clone. It checks the project baseline, consults bundled framework documentation, writes tests firstTest-driven development is a software workflow in which a failing test is written before implementation, then code is added and refactored until the test passes. and commits each stage while keeping the thread and repository history synchronized.
Delta can use hosted models, a ChatGPT subscription, API keys or GitHub Copilot, and it also supports Claude Code sessions through the Agent Client Protocol. Cloud runners can continue after a laptop closes. The product was still in early access with unannounced pricing, while Zed said DeltaDB would be open sourced with optional paid services. Closing membership and donation requests are omitted.
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