Now instead of the model hallucinating tool calls, we get requests for
more context:

<img width="620" alt="Screenshot 2025-05-01 at 12 45 49 PM"
src="https://github.com/user-attachments/assets/847d5c14-82f6-4234-b85a-8cd2bc7ab11d"
/>

It still knows how to answer general questions:
<img width="624" alt="Screenshot 2025-05-01 at 12 47 44 PM"
src="https://github.com/user-attachments/assets/43ab0fc3-4cc8-452f-b26b-474b5d31919f"
/>

Release Notes:

- Fixed the model still trying to do tool calls when no tools selected
(e.g. in `Manual` profile).

---------

Co-authored-by: Ben <ben@zed.dev>
Co-authored-by: Michael <michael@zed.dev>

Closes #29836

The agent diff toolbar item was causing the editor toolbar to show even
when all the other elements were disabled via settings.

This PR fixes this by setting the location to
`ToolbarItemLocation::Hidden` in the states where it shouldn't show.

It also adds a new a `toolbar.agent_review` setting to hide the agent
review buttons altogether. However, if the other toolbar elements are
hidden and the file isn't under review, the editor toolbar will still be
hidden. So you only need to set this to `false` if you don't want them
to show up even under agent review.

Release Notes:

- N/A

Release Notes:

- agent: Add the `single_file_review` setting to the UI

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 PR implements the `ParentElement` trait for the `Banner` component
so that it can use the real children APIs instead of a bespoke one.

Release Notes:

- N/A

This PR adds a notice when reaching consecutive tool use limits when
using normal mode.

Here's an example with the limit artificially lowered to 2 consecutive
tool uses:


https://github.com/user-attachments/assets/32da8d38-67de-4d6b-8f24-754d2518e5d4

Release Notes:

- agent: Added a notice when reaching consecutive tool use limits when
using a model in normal mode.

Still a work in progress.

Release Notes:

- N/A

---------

Co-authored-by: Bennet Bo Fenner <bennetbo@gmx.de>
Co-authored-by: Nathan Sobo <nathan@zed.dev>
Co-authored-by: Cole Miller <m@cole-miller.net>
Co-authored-by: Nathan Sobo <1789+nathansobo@users.noreply.github.com>
Co-authored-by: Cole Miller <53574922+cole-miller@users.noreply.github.com>

This sets us up to display queue position information to the user, once
our language model backend is updated to support request queuing.

The JSON returned by the LLM backend will need to look like this:

```json
{"queue": {"status": "queued", "position": 1}}
{"queue": {"status": "started"}}
{"event": {"THE_UPSTREAM_MODEL_PROVIDER_EVENT": "..."}} 
```

Release Notes:

- N/A

---------

Co-authored-by: Marshall Bowers <git@maxdeviant.com>

- [x] Separate MCP servers from tools in the profile customization modal
view
- [x] Group MCP tools in the MCP picker and add a heading
- [x] Separate bult-in profiles from custom ones in the dropdown
selector
- [x] Separate bult-in profiles from custom ones in the modal
- [ ] Enable looping through items via keybinding without opening the
dropdown (will be done on a follow-up PR)
- [ ] Stretch: Focus on the currently active item upon opening the
dropdown (will be done on a follow-up PR)

Release Notes:

- N/A

---------

Co-authored-by: Bennet Bo Fenner <53836821+bennetbo@users.noreply.github.com>
Co-authored-by: Bennet Bo Fenner <bennetbo@gmx.de>
Co-authored-by: Bennet Bo Fenner <bennet@zed.dev>

The cursor wasn't always placed at the first hunk for review editors.

Release Notes:

- N/A

Enables reviewing agent edits from single-file editors in addition to
the multibuffer experience we already had.


https://github.com/user-attachments/assets/a2c287f0-51d6-43a1-8537-821498b91983


This feature can be turned off by setting `assistant.single_file_review:
false`.

Release Notes:

- agent: Review edits in single-file editors

Also `now` in `write` profile

Release Notes:

- Tools for manipulating directories no longer require confirmation, and
are enabled in the Write profile
- Enabled `now` and `list_directory` tools by default in Write profile

---------

Co-authored-by: Cole Miller <m@cole-miller.net>
Co-authored-by: Cole Miller <cole@zed.dev>

Closes #ISSUE

Co-authored-by: Bennet <bennet@zed.dev>

Release Notes:

- Added support for context `@mentions` in the inline prompt editor and
when editing past messages in the agent panel.

---------

Co-authored-by: Bennet Bo Fenner <bennet@zed.dev>
Co-authored-by: Ben Brandt <benjamin.j.brandt@gmail.com>

Previously, the assistant panel width was not persisted across sessions.
This meant that upon restarting the Zed editor, the panel would revert
to its default size, disrupting the user's preferred layout.

This pull request introduces persistence for the assistant panel width.
The width is now saved to the key-value store when the editor is closed
and restored on startup, ensuring a consistent UI experience across
different sessions.

Release Notes:

- agent: Add assistant panel width persistence

---------

Signed-off-by: Umesh Yadav <umesh4257@gmail.com>

Release Notes:

- Removed some obsolete tools: batch_tool, code_actions, code_symbols,
contents, symbol_info, rename

Co-authored-by: Cole Miller <m@cole-miller.net>

Also have its description say it should only be used on request

Release Notes:

- N/A

Some changes in the LanguageModelRegistry caused the web search tool not
to show up, because the `DefaultModelChanged` event is not emitted at
startup anymore.

Release Notes:

- agent: Fixed an issue where the web search tool would not be available
after starting Zed (only when using zed.dev as a provider).

Cherry-picked Properly score fuzzy match queries with multiple chars in
lower case (#29794)

Closes https://github.com/zed-industries/zed/issues/29526

Release Notes:

- Fixed file finder crashing for certain file names with multiple chars
in lowercase form

Co-authored-by: Kirill Bulatov <kirill@zed.dev>

This PR makes agent previews render like any other preview in the
component preview list & pages.

Page:

![CleanShot 2025-05-02 at 09 17
12@2x](https://github.com/user-attachments/assets/8b611380-b686-4fd6-9c76-de27e35b0b38)

List:

![CleanShot 2025-05-02 at 09 17
33@2x](https://github.com/user-attachments/assets/ab063649-dc3c-4c95-969b-c3795b2197f2)


Release Notes:

- N/A

Like the title says

Release Notes:

- N/A

This PR prevents this edit card from being shown expanded but empty,
like this:

<img width="590" alt="Screenshot 2025-05-01 at 7 38 47 PM"
src="https://github.com/user-attachments/assets/147d3d73-05b9-4493-8145-0ee915f12cd9"
/>

Now, we will show an animation until it has a diff computed.


https://github.com/user-attachments/assets/52900cdf-ee3d-4c3b-88c7-c53377543bcf

Release Notes:

- N/A

---------

Co-authored-by: Danilo Leal <daniloleal09@gmail.com>

Follow-up of https://github.com/zed-industries/zed/pull/28993

* Tone down tasks' cancellation logging
* Fix task terminals' leak, disallowing to fully cancel the task by
dropping the terminal off the pane:

https://github.com/zed-industries/zed/blob/f619d5f02af100c34e286af294a42a01dcfb238c/crates/terminal_view/src/terminal_panel.rs#L1464-L1471

Release Notes:

- Fixed tasks not being stopped on reruns

Refs #29733 

This pull request introduces a new field to the `StreamingEditFileTool`
that lets the model create or overwrite a file in a streaming way. When
one of the `assistant.stream_edits` setting / `agent-stream-edits`
feature flag is enabled, we are going to disable the `CreateFileTool` so
that the agent model can only use `StreamingEditFileTool` for file
creation.

Release Notes:

- N/A

---------

Co-authored-by: Ben Brandt <benjamin.j.brandt@gmail.com>
Co-authored-by: Oleksiy Syvokon <oleksiy.syvokon@gmail.com>

This PR makes the thread completion mode non-optional.

Release Notes:

- N/A

This PR prevents any unnecessary lines from being rendered in the edit
file tool card in the case of small diffs.

I think this (hopefully) addresses the last remaining task from
https://github.com/zed-industries/zed/pull/29448.

| `main` | This PR |
| --- | --- |
| <img width="634" alt="main"
src="https://github.com/user-attachments/assets/7c06394e-957a-4d36-a484-5974687041e9"
/> | <img width="634" alt="PR"
src="https://github.com/user-attachments/assets/84206d5a-a93a-4a42-99ca-7cdebb0d91bb"
/> |

(The last empty line in the second image is an empty line present in the
file itself)

---

n the second commit I also preemtively disabled vertical overscrolling
for full mode editors which are sized by content. This is basically the
same fix as in https://github.com/zed-industries/zed/pull/28471.
Strictly speaking, this is not needed for the fix here, but I thought it
might be nice to have for the future to prevent any issues from occuring
due to overscroll.

Release Notes:

- agent: Improved rendering of small diffs for the edit file tool card.

Mostly somewhat small UI tweaks around the MCP extension config flow and
the settings section.

Release Notes:

- N/A

This PR updates the max mode toggle to use the muted color.

This makes it fit in more with the rest of the controls.

<img width="243" alt="Screenshot 2025-05-01 at 5 24 01 PM"
src="https://github.com/user-attachments/assets/57267d29-3c7b-4ea9-b6b9-81c42f6b7e1c"
/>

Release Notes:

- agent: Adjusted the color of the max mode toggle.

Release Notes:

- Fixed a bug where clicking context pills switched into the "editing
message" state instead of clicking the pill.

Co-authored-by: Michael <michael@zed.dev>
Co-authored-by: Ben <ben@zed.dev>

Part of #29309

The license is on par with other licenses in the list:
https://github.com/aws/mit-0

Release Notes:

- N/A

Closes #29753

The template contains an error: `has_default_user_rules` is always
undefined and should be `has_user_rules` instead.

Release Notes:

- Fixed default user rules ignored during prompt building.

We weren't using this one anymore. We used to use it for the switch that
toggled tools on, which doesn't exist anymore.

Release Notes:

- N/A

---------

Co-authored-by: Joseph T. Lyons <josephtlyons@gmail.com>

WIP

Release Notes:

- N/A

---------

Co-authored-by: Danilo Leal <67129314+danilo-leal@users.noreply.github.com>
Co-authored-by: Danilo Leal <daniloleal09@gmail.com>
Co-authored-by: Marshall Bowers <git@maxdeviant.com>
Co-authored-by: Cole Miller <m@cole-miller.net>
Co-authored-by: Antonio Scandurra <me@as-cii.com>
Co-authored-by: Oleksiy Syvokon <oleksiy.syvokon@gmail.com>

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>

Release Notes:

- Added `open` tool for opening files or URLs.

Release Notes:

- agent: Support adding/removing context when editing existing message

---------

Co-authored-by: Cole Miller <m@cole-miller.net>
Co-authored-by: Cole Miller <cole@zed.dev>

I saw this come up in an eval, where the LLM provided a start line of 0.

Release Notes:

- N/A

Closes #ISSUE

Release Notes:

- Fixed a bug causing incorrect formatting of git commit tooltips

## Before

![Screenshot 2025-04-30 at 10 56
36 AM](https://github.com/user-attachments/assets/3a435f4c-ad45-4f26-a847-2d5c9d03648e)

## After

![Screenshot 2025-04-30 at 10 55
27 AM](https://github.com/user-attachments/assets/cc3a8144-b6fe-4a15-8a47-b2487ce4f66e)

Release Notes:

- Context picker and `@`-mentions now work with very large files.

Closes #ISSUE

Release Notes:

- N/A

We have a report of a panic when indexing into
`BufferConflicts.block_ids` using the `old_range` from the
`ConflictsUpdated` event, indicating that the `block_ids` array can get
out of sync with the underlying `ConflictSet`. This PR adds a mitigation
so that we won't panic in this situation, as a stopgap until the bug can
be reproduced in a test and fixed at the root.

Release Notes:

- N/A

This fixes a bug with opening images on worktrees that contain
"extension" in the dir name, like `zed.dev`


Release Notes:

- N/A

Closes #ISSUE

Release Notes:

- N/A

⚠️ Work in progress until all of the to-dos are knocked out:

- [x] Disable soft-wrapping
- [x] Make it foldable only after a certain number of lines
- [x] Display tool status errors
- [x] Fix horizontal scroll now that we've disabled soft-wrap
- [ ] Don't render unnecessary extra lines (will be added later, on a
follow-up PR)

Release Notes:

- N/A

---------

Co-authored-by: Agus Zubiaga <hi@aguz.me>
Co-authored-by: Michael Sloan <mgsloan@gmail.com>

Mostly spacing and whatnot; tiny stuff here.

Release Notes:

- N/A