Jack Walters d9abcde22a Add a setting for Threads Sidebar auto-open (#64259)
Closes https://github.com/zed-industries/zed/discussions/64266

Opening a folder in an existing window force-opens the Threads Sidebar,
and there is no way to prevent it. `open_paths` called
`MultiWorkspace::open_sidebar` unconditionally on the reused window, so
the sidebar reopened on every such open regardless of whether the user
had closed it.

This adds `agent.threads_sidebar_auto_open`, defaulting to `true` so
current behavior is unchanged. With `false`, the folder still opens in
the existing window, but the sidebar stays closed.

This path is reached when `default_open_behavior` or
`cli_default_open_behavior` is set to `existing_window`.

`open_sidebar` was doing double duty: besides showing the sidebar, it
pinned the workspace being navigated away from so it survives the
switch. When the setting is disabled, `retain_active_workspace` is
called instead, so only sidebar visibility changes.


https://github.com/user-attachments/assets/fc299df0-27e2-4ac6-98cb-d817d5f71d0e

## Tests

Two tests in `multi_workspace_tests.rs` cover both branches: the sidebar
opens by default, and stays closed when the setting is disabled while
the folder still opens in the same window.

Release Notes:

- Added `agent.threads_sidebar_auto_open` to control whether opening a
folder in an existing window also opens the Threads Sidebar
2026-09-16 16:03:50 +00:00
2026-08-12 08:35:43 +00:00
2026-01-22 23:57:26 +05:30
2026-08-28 20:04:24 +00:00
2026-09-11 09:13:44 +00:00
2026-09-11 09:13:44 +00:00
2025-02-04 09:02:59 -05:00
2025-10-27 13:27:59 -04:00

Zed

Zed CI

Welcome to Zed, a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.


Installation

On macOS, Linux, and Windows you can download Zed directly or install Zed via your local package manager (macOS/Linux/Windows).

Other platforms are not yet available:

Developing Zed

Contributing

See CONTRIBUTING.md for ways you can contribute to Zed.

Also... we're hiring! Check out our jobs page for open roles.

Licensing

Zed source code is licensed primarily under GPL-3.0-or-later, with Apache-2.0 components where marked.

License information for third party dependencies must be correctly provided for CI to pass.

We use cargo-about to automatically comply with open source licenses. If CI is failing, check the following:

  • Is it showing a no license specified error for a crate you've created? If so, add publish = false under [package] in your crate's Cargo.toml.
  • Is the error failed to satisfy license requirements for a dependency? If so, first determine what license the project has and whether this system is sufficient to comply with this license's requirements. If you're unsure, ask a lawyer. Once you've verified that this system is acceptable add the license's SPDX identifier to the accepted array in script/licenses/zed-licenses.toml.
  • Is cargo-about unable to find the license for a dependency? If so, add a clarification field at the end of script/licenses/zed-licenses.toml, as specified in the cargo-about book.

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Zed is developed by Zed Industries, Inc., a for-profit company.

If you’d like to financially support the project, you can do so via GitHub Sponsors. Sponsorships go directly to Zed Industries and are used as general company revenue. There are no perks or entitlements associated with sponsorship.

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