342bafafee Send session headers on all OpenCode requests (#63702)
Fixes https://github.com/zed-industries/zed/issues/63672

OpenCode Go now requires the `x-opencode-session` header on every model
request. Zed previously sent the header only when a request already had
a thread ID, so inline assistance, terminal assistance, and other
standalone requests could omit it and risk rejection.

This change makes the OpenCode provider add the header to every request.
Existing thread and assist session IDs are reused when available.
Standalone requests receive a generated non-empty ID. Thread title and
summary requests now carry the thread ID so related requests keep the
same session scope.

The change also adds tests for missing, empty, and invalid IDs, plus a
wire-level test that verifies the header reaches the HTTP client. The
provider test file stays separate so the implementation remains under
1,000 lines.

Testing:

- `cargo fmt --all -- --check`
- Focused OpenCode, thread summary, and thread title tests
- `cargo check -p agent_ui -p sidebar`
- `GITHUB_ACTIONS=1 ./script/clippy -p language_models`
- `git diff --check`

Release Notes:

- Fixed OpenCode Go requests that could fail when Zed omitted the
session header.

---------

Co-authored-by: Kirill Bulatov <kirill@zed.dev>
Co-authored-by: Christopher Biscardi <chris@christopherbiscardi.com>
2026-09-03 18:29:10 +00:00
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2026-08-12 08:35:43 +00:00
…
2026-08-28 20:04:24 +00:00
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2026-09-02 18:21:25 +00:00
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2026-08-09 22:29:52 +00:00
2026-08-09 22:29:52 +00:00
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2026-03-17 16:34:35 +00:00
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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.

Sponsorship

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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