Saggar vs Zed
The editor that took agents most seriously, and the window that sits beside it.
Zed is a fast, open source code editor from the makers of Atom and Tree-sitter, and it is no longer just an editor with a terminal panel. Its Threads Sidebar runs several agent threads at once, grouped by project, in one window. Its own agent sits beside Claude Code, Codex, Gemini CLI, OpenCode, and others, which it drives through the Agent Client Protocol, the open standard Zed started.
Since May 2026 it also runs terminal threads: start claude, codex, or pi in a terminal that lives in the same sidebar. That puts it much closer to Saggar than the generic editor-panel page on this site suggests, so it gets a page of its own.
The difference is where each one puts the agent. In Zed, agents work inside the editor, where the diff review and the code already are. Saggar keeps the agents' terminals in a window of their own, reads what each one is doing, and follows your attention off the Mac onto your phone.
What Zed does well
- Parallel agent threads in a Threads Sidebar, grouped by project, each with its own agent, context, and history.
- External agents through the Agent Client Protocol, installed from a registry, with each agent keeping its own sign-in and billing.
- Review built in: accept or reject each hunk an agent wrote, and restore a checkpoint from before an edit.
- A Git worktree per thread when two agents would otherwise edit the same files.
- Terminal threads for any CLI, plus desktop and sound notifications when an agent is waiting or done.
- A very fast editor in its own right, open source under the GPL, on macOS, Linux, and Windows.
Where Saggar takes a different line
- The terminal is the whole window, not a thread in an editor. Saggar is meant to sit beside whatever editor you use, Zed included.
- Every agent session is classified from what its CLI printed — needs you, working, idle, finished, or failed — and the ones waiting on you form one priority-ordered queue, walked with ⌘J.
- The agent CLI runs exactly as its maker ships it, rather than through a protocol adapter where slash commands and checkpoints depend on each integration.
- A first-party phone app: read a session and answer its prompt while you are away from the Mac. Zed has no mobile client.
- Dev servers and watchers live in a monitor dock, and project state is written to .saggar/ beside the code where agents can read it.
Side by side
YesPartlyNo
| Saggar | Zed | |
|---|---|---|
| Native Mac appA real Mac window with menus, keyboard shortcuts, split panes, and themes — not a text UI or a web view. | Yes. Swift and SwiftUI, built against macOS 26.Swift and SwiftUI, built against macOS 26. | Yes. Native and GPU-rendered through its own Rust UI framework, not a web view. The same app ships on Linux and Windows.Native and GPU-rendered through its own Rust UI framework, not a web view. The same app ships on Linux and Windows. |
| Status without lookingEach session says what it is doing, so you don't read five transcripts to find the one that stopped. | Yes. Needs you, working, idle, finished, or failed, re-read every two seconds.Needs you, working, idle, finished, or failed, re-read every two seconds. | Partly. Agent threads show a status in the sidebar. Terminal threads show their title and rely on the CLI's bell.Agent threads show a status in the sidebar. Terminal threads show their title and rely on the CLI's bell. |
| One ordered attention queueEverything waiting on a decision, collected in priority order and walkable from the keyboard. | Yes. Prompts, failures, and finished work form one queue. ⌘J walks it.Prompts, failures, and finished work form one queue. ⌘J walks it. | Partly. One sidebar lists threads across projects, with notifications when one waits. Not ordered by what needs you.One sidebar lists threads across projects, with notifications when one waits. Not ordered by what needs you. |
| Answer from your phoneRead a session and reply to its prompt while you are away from the Mac. | Yes. The Saggar iPhone app, in TestFlight beta. Pair once by scanning a QR code.The Saggar iPhone app, in TestFlight beta. Pair once by scanning a QR code. | No. No mobile client. Remote development over SSH still needs the desktop app.No mobile client. Remote development over SSH still needs the desktop app. |
| Work survives a disconnectAgents keep running when the network drops, the lid closes, or the machine restarts. | Partly. Sessions and scrollback are restored, and idle sleep is held off while work needs you. A closed lid still stops it.Sessions and scrollback are restored, and idle sleep is held off while work needs you. A closed lid still stops it. | Partly. Thread history persists and can be reopened. Running agents belong to the editor session.Thread history persists and can be reopened. Running agents belong to the editor session. |
| Project workspaceBranch, worktree, dirty files, listening ports, notes, and startup commands, kept per codebase. | Yes. Tracked live, and stored in .saggar/ beside the code where agents can read it.Tracked live, and stored in .saggar/ beside the code where agents can read it. | Yes. The workspace is the project, with a Git panel, worktrees per thread, and hunk-level review.The workspace is the project, with a Git panel, worktrees per thread, and hunk-level review. |
| Works without an accountInstall it and use it without signing in to anything. | Yes. The Mac app needs no account. Sign in only when you want your phone to reach it.The Mac app needs no account. Sign in only when you want your phone to reach it. | Yes. No Zed account for the editor, your own API keys, or external agents. Zed-hosted models need one.No Zed account for the editor, your own API keys, or external agents. Zed-hosted models need one. |
| Open sourceYou can read the code, fork it, and keep it if the company stops. | No. Closed source.Closed source. | Yes. GPL for the editor, AGPL for its server components.GPL for the editor, AGPL for its server components. |
| Runs beyond macOSLinux and Windows, for people who don't work on a Mac. | No. macOS 26 Tahoe or later, on Apple silicon.macOS 26 Tahoe or later, on Apple silicon. | Yes. macOS, Linux, and Windows.macOS, Linux, and Windows. |
Claims about Zed come from its own documentation and were last checked in August 2026. If something here is out of date, tell us and we will fix it.
Which one
Pick Zed
Choose Zed if you want agents inside your editor, where their diffs land and you review them hunk by hunk, if you work on Linux or Windows, or if open source matters to you. Its parallel agent threads are free with your own keys or external agents.
Pick Saggar
Choose Saggar if you work on a Mac, want each agent CLI in its own real terminal whatever editor you use, and need to know which session is waiting on you, including from your phone.
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