Zed introduces parallel agents with a new Threads Sidebar

Zed has launched Parallel Agents, a feature that lets developers run multiple AI agent threads at the same time within a single editor window. A new Threads Sidebar manages all active and historical threads, and supports mixing Zed's built-in agent with third-party agents such as Claude, Codex, Cursor, Amp, and Open Code. Threads from external agents can be imported directly into Zed's sidebar. The feature also integrates Git worktree support, allowing heavier tasks to run in isolated checkouts while lighter tasks share the working copy. Agents can read and write across multiple repos within a single thread.