Delta Rebuilds Editor For Agent Threads

Delta’s editor is the real product moat: the team treated agent conversations as durable, multiplayer documents instead of chat logs, then redesigned rendering around that premise.

• –Buffer anchors keep scroll positions and selections stable while collaborators, tools, and streaming output modify content above them.
• –Immediate-mode formatting avoids fragile layout indexes, while idle-time measurement handles scrollbar accuracy without blocking interaction.
• –Keeping comments outside the main text buffer lets every surface support annotations without forcing each formatter to understand comment boundaries.
• –The approach raises Delta’s engineering ceiling, but also reinforces its steep learning curve and unusual workflow; community feedback remains split between excitement and UI confusion. [Reddit discussion](https://www.reddit.com/r/ZedEditor/comments/1wq03mv/has_anyone_tried_delta/)