This PR adds a thinking toggle for controlling whether to use thinking
for a model in the Zed provider:
<img width="645" height="142" alt="Screenshot 2026-01-22 at 12 34 01 PM"
src="https://github.com/user-attachments/assets/9aa543fe-e708-4840-8b38-1a6fbcb78388"
/>
Previously we would create separate "Thinking" variants of the models
that supported thinking in the model selector.
This only applies to Anthropic models in the Zed provider, currently.
This is gated behind the `cloud-thinking-toggle` feature flag.
Release Notes:
- N/A
---------
Co-authored-by: Neel <neel@zed.dev>
## Summary
Implements user-defined slash commands for the agent panel. Users can
create markdown files in `~/.config/zed/commands/` (user-wide) or
`.zed/commands/` (project-specific) that expand into templated text when
invoked via `/command_name` in the chat interface.
## Features
- **File-based commands**: Create `.md` files that become slash commands
- **Template expansion**: Use `$1`, `$2`, etc. for positional arguments,
or `$ARGUMENTS` for all args
- **Namespacing**: Subdirectories create namespaced commands (e.g.,
`frontend/component.md` → `/frontend:component`)
- **Project & user scopes**: Project commands in `.zed/commands/`, user
commands in config dir
- **Claude compatibility**: Can symlink `~/.claude/commands/` for
compatibility
- **Caching**: Commands are cached and watched for file changes
- **Error handling**: Graceful degradation with error display in UI
## Feature Flag
Behind `user-slash-commands` feature flag.
## Testing
52 unit/integration tests covering parsing, validation, expansion, file
loading, symlinks, and error handling.
---
Release Notes:
- N/A (behind feature flag)
---------
Co-authored-by: Zed Zippy <234243425+zed-zippy[bot]@users.noreply.github.com>
This PR removes the `open-ai-responses-api` feature flag and makes it so
all OpenAI requests to the Zed provider use the Responses API.
We've been running this in Nightly/Preview for a week now without any
issues.
Closes CLO-104.
Release Notes:
- N/A
## Summary
This PR adds the UI for displaying subagent tool calls:
### Thread view changes
- Add `expanded_subagents` state HashMap for tracking expanded cards
- Implement `render_subagent_tool_call()` for collapsed card with label
and chevron
- Add subagent detection via `is_subagent()` and `tool_name` field
- Handle `SubagentThread` content type in tool call rendering
- Add expand/collapse toggle button for subagent cards
- Style collapsed cards similar to terminal tool calls
- Support inline image rendering in content blocks
### Agent panel changes
- Add `open_external_thread_with_server()` for testing with stubbed
servers
### Test support
- Add `acp_thread/test-support` feature to agent_ui
- Add base64 dev dependency for image tests
Release Notes:
- N/A
---------
Co-authored-by: Amp <amp@ampcode.com>
Adds a very simple diff review button behind a feature flag, which
appears in the gutter of people who have the flag (currently just me;
it's not even enabled for staff, since it doesn't do anything yet).
Mostly this PR just adds the feature flag, the button, and tests.
Release Notes:
- N/A
This PR adds support for using the OpenAI Responses API through the Zed
provider.
This is gated behind the `open-ai-responses-api` feature flag.
Part of CLO-34.
Release Notes:
- N/A
This PR adds the foundation for the subagents feature:
- Add `SubagentsFeatureFlag` with staff-disabled default
- Create `SubagentTool` struct with input schema for
task/summary/context-low prompts
- Register `SubagentTool` conditionally when feature flag is enabled
- Tool returns stub message 'not yet implemented' for now
Release Notes:
- N/A
---------
Co-authored-by: Amp <amp@ampcode.com>
Co-authored-by: Mikayla Maki <mikayla@zed.dev>
Co-authored-by: Yara <yara@zed.dev>
🔜
TODO:
- [x] Add a utility pane to the left and right edges of the workspace
- [x] Add a maximize button to the left and right side of the pane
- [x] Add a new agents pane
- [x] Add a feature flag turning these off
POV: You're working agentically
<img width="354" height="606" alt="Screenshot 2025-12-13 at 11 50 14 PM"
src="https://github.com/user-attachments/assets/ce5469f9-adc2-47f5-a978-a48bf992f5f7"
/>
Release Notes:
- N/A
---------
Co-authored-by: Nathan Sobo <nathan@zed.dev>
Co-authored-by: Zed <zed@zed.dev>
Tighten up evals, make assistant less talkative, get them passing a bit
more, improve telemetry, stream in failure messages, and turn it on for
staff.
Release Notes:
- N/A
We've been considering removing workspace-hack for a couple reasons:
- Lukas ran into a situation where its build script seemed to be causing
spurious rebuilds. This seems more likely to be a cargo bug than an
issue with workspace-hack itself (given that it has an empty build
script), but we don't necessarily want to take the time to hunt that
down right now.
- Marshall mentioned hakari interacts poorly with automated crate
updates (in our case provided by rennovate) because you'd need to have
`cargo hakari generate && cargo hakari manage-deps` after their changes
and we prefer to not have actions that make commits.
Currently removing workspace-hack causes our workspace to grow from
~1700 to ~2000 crates being built (depending on platform), which is
mainly a problem when you're building the whole workspace or running
tests across the the normal and remote binaries (which is where
feature-unification nets us the most sharing). It doesn't impact
incremental times noticeably when you're just iterating on `-p zed`, and
we'll hopefully get these savings back in the future when
rust-lang/cargo#14774 (which re-implements the functionality of hakari)
is finished.
Release Notes:
- N/A
This PR removes the experimental jj bookmark picker that was added in
#30883.
This was just an exploratory prototype and while I would like to have
native jj UI at some point, I don't know when we'll get back to it.
Release Notes:
- N/A
This removes the `gemini-and-native` and `claude-code` feature flags.
Also, I removed a bunch of unused agent1 code that we do not need
anymore.
Initially I wanted to remove much more of the `agent` code, but noticed
some things that we need to figure out first:
- The inline assistant + context strip use `Thread`/`ContextStore`
directly
- We need some replacement for `ToolWorkingSet`, so we can access
available tools (as well as context server tools) in other places, e.g.
the agent configuration and the configure profile modal
Release Notes:
- N/A
This PR moves the feature flag definitions to their own module so that
they aren't intermingled with the feature flag infrastructure itself.
Release Notes:
- N/A
Closes #ISSUE
Adds handling for Enums with fields (i.e. not `enum Foo { Yes, No }`) in
Settings UI. Accomplished by creating default values for each element
with fields (in the derive macro), and rendering a toggle button group
with a button for each variant where switching the active variant sets
the value in the settings JSON to the default for the new active
variant.
Release Notes:
- N/A *or* Added/Fixed/Improved ...
---------
Co-authored-by: Conrad <conrad@zed.dev>
This PR makes it so that only Zed staff connect to Collab automatically.
Anyone else can connect to Collab manually when they want to collaborate
(but this is not required for using Zed's LLM features).
Release Notes:
- N/A
---------
Co-authored-by: Richard <richard@zed.dev>
This PR makes it so all LLM traffic is routed through `cloud.zed.dev`.
We're already routing `llm.zed.dev` to `cloud.zed.dev` on the server,
but we want to standardize on `cloud.zed.dev` moving forward.
Release Notes:
- N/A
This PR adds a new `zed-cloud` feature flag that can be used to send
traffic to `cloud.zed.dev` instead of `llm.zed.dev`.
This is just so Zed staff can test the new infrastructure. When we're
ready for prime-time we'll reroute traffic on the server.
Release Notes:
- N/A
This PR adds a new picker for viewing a list of jj bookmarks, like you
would with `jj bookmark list`.
This is an exploration around what it would look like to begin adding
some dedicated jj features to Zed.
This is behind the `jj-ui` feature flag.
Release Notes:
- N/A
This PR removes all of the feature flag checks related to the Agent.
Tried to do this in the least invasive way possible; we can follow up
with a full removal.
Release Notes:
- N/A
This PR adds a singular constant that controls the Agent-related feature
flags.
This way we can tweak this one value when we're ready to build the final
build for the launch.
Release Notes:
- N/A
This pull request introduces a new tool for streaming edits. The
short-term goal is for this tool to replace the existing `EditFileTool`,
but we want to get this out the door as soon as possible so that we can
start testing it.
`StreamingEditFileTool` is mutually exclusive with `EditFileTool`. It
will be enabled by default for anyone who has the `agent-stream-edits`
feature flag, as well as people that set `assistant.stream_edits` to
`true` in their settings.
### Implementation
Streaming is achieved by requesting a completion while the `edit_file`
tool gets called. We invoke the model by taking the existing
conversation with the agent and appending a prompt specifically tailored
for editing. In that prompt, we ask the model to produce a stream of
`<old_text>`/`<new_text>` tags. As the model streams text in, we
incrementally parse it and start editing as soon as we can.
### Evals
Note that, as part of this pull request, I also defined some new evals
that I used to drive the behavior of the recursive LLM call. To run
them, use this command:
```bash
cargo test --package=assistant_tools --features eval -- eval_extract_handle_command_output
```
Or comment out the `#[cfg_attr(not(feature = "eval"), ignore)]` macro.
I recommend running them one at a time, because right now we don't
really have a way of orchestrating of all these evals. I think we should
invest into that effort once the new agent panel goes live.
Release Notes:
- N/A
---------
Co-authored-by: Nathan Sobo <nathan@zed.dev>
Co-authored-by: Bennet Bo Fenner <bennetbo@gmx.de>
Co-authored-by: Oleksiy Syvokon <oleksiy.syvokon@gmail.com>
