While investigating https://github.com/zed-industries/zed/issues/28076,
I found out often times the content type header of a website comes with
more data, such as the `charset`. So instead of doing an equal
comparison, I changed to a `starts_with`.

You can see an example here:

```shell
$ curl -sS -D - https://github.com/zed-industries/zed/blob/main/Cargo.toml -o /dev/null | head -n 10
HTTP/2 200
date: Sun, 20 Apr 2025 10:19:52 GMT
content-type: text/html; charset=utf-8
vary: X-PJAX, X-PJAX-Container, Turbo-Visit, Turbo-Frame,Accept-Encoding, Accept, X-Requested-With
etag: W/"92dabf048b34d04a1b1d94e29cae4aca"
cache-control: max-age=0, private, must-revalidate
strict-transport-security: max-age=31536000; includeSubdomains; preload
x-frame-options: deny
x-content-type-options: nosniff
x-xss-protection: 0
```

Release Notes:

- Improved Content Type matching of `/fetch` commands in Assistant

Co-authored-by: Peter Tripp <peter@zed.dev>

Release Notes:

- Fixed a bug that would cause rejecting a hunk from the agent to delete
the file if the agent had decided to rewrite that file from scratch.

Closes https://github.com/zed-industries/zed/issues/29821

Release Notes:

- Fixed an issue in the agent panel where OpenAI requests would fail if
the assistant begins its response with a tool call.

Cleaning up as I introduced a few regressions in this PR:
https://github.com/zed-industries/zed/pull/29866.

Release Notes:

- N/A

Closes #ISSUE

Release Notes:

- Agent Beta: Renamed the top-level `assistant` settings key to `agent`.
A migration for existing settings files is included.
- Agent Beta: Moved the `assistant::ToggleFocus`,
`assistant::ToggleModelSelector`, and `assistant::OpenRulesLibrary`
actions to the `agent` namespace. Existing keymaps that mention these
actions by their old names will continue to work.

---------

Co-authored-by: Max <max@zed.dev>

Closes https://github.com/zed-industries/zed/issues/29337

Release Notes:

- Fixed a bug where the `prompt` field was ignored on custom key
bindings for `InlineAssist`

Co-authored-by: Michael Sloan <mgsloan@gmail.com>

Release Notes:

- Added the ability to drag files and tabs onto the new agent panel.

---------

Co-authored-by: Michael Sloan <mgsloan@gmail.com>

Fixes https://github.com/zed-industries/zed/issues/29909 

🍐'd with @nathansobo 

Release Notes:

- N/A

---------

Co-authored-by: Nathan <nathan@zed.dev>

Release Notes:

- N/A

This PR adds an upsell to try Zed Pro

Release Notes:

- N/A

---------

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

You can set `agent_font_size` as a top-level settings key. You can also
use `zed::IncreaseBufferFontSize` and `zed::DecreaseBufferFontSize` and
`zed::ResetBufferFontSize` the agent panel is focused via the standard
bindings to adjust the agent font size. In the future, it might make
sense to rename these actions to be more general since "buffer" is now a
bit of a misnomer. 🍐'd with @mikayla-maki

Release Notes:

- N/A

---------

Co-authored-by: Mikayla Maki <mikayla.c.maki@gmail.com>

Release Notes:

- Made context attachments in inline assist prompts persist across
inline assist invocations.

Co-authored-by: Michael Sloan <mgsloan@gmail.com>

This PR updates the usage indicator for edit predictions to show the
initial usage data returned from the server.

Release Notes:

- N/A

Release Notes:

- N/A

---------

Co-authored-by: Michael Sloan <mgsloan@gmail.com>

Release Notes:

- N/A

WIP

- On macOS/Linux, run the command in bash instead of the user's shell
- Try to prevent the agent from running commands that expect interaction

Release Notes:

- Agent Beta: Switched to using `bash` (if available) instead of the
user's shell when calling the terminal tool.
- Agent Beta: Prevented the agent from hanging when trying to run
interactive commands.

---------

Co-authored-by: WeetHet <stas.ale66@gmail.com>

Because we instantiated `ContextServerManager` both in `agent` and
`assistant-context-editor`, and these two entities track the running MCP
servers separately, we were effectively running every MCP server twice.

This PR moves the `ContextServerManager` into the project crate (now
called `ContextServerStore`). The store can be accessed via a project
instance. This ensures that we only instantiate one `ContextServerStore`
per project.

Also, this PR adds a bunch of tests to ensure that the
`ContextServerStore` behaves correctly (Previously there were none).

Closes #28714
Closes #29530

Release Notes:

- N/A

This change:

1. Catches attempts to use missing tools. If this happens, we now send
Agent a message listing available tools, after which Agent can
gracefully recover. Prior behavior: thread would stop in a broken state.

Example of a hallucinated call and a message we send back: 

![image](https://github.com/user-attachments/assets/92a8f700-b192-4038-8c7e-0a74ca2e0146)

2. Adds evals for hallucinated tool use and imagined edits
3. Adds ability to configure a profile name in evals.



Release Notes:

- N/A

To-dos:

- [x] Expose the command to defend against cases where that's just super
long
- [x] Tackle the vertical scroll conflict with panel scroll
- [x] Reduce default font-size

Release Notes:

- N/A

---------

Co-authored-by: Ben Brandt <benjamin.j.brandt@gmail.com>
Co-authored-by: Mikayla Maki <mikayla.c.maki@gmail.com>
Co-authored-by: Agus Zubiaga <hi@aguz.me>

Release Notes:

- N/A

---------

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

This PR updates the `UpdatePlan` message to include some additional
information about the user's billing subscription usage.

Release Notes:

- N/A

The goal of this PR is to support tool calls using ollama. A lot of the
serialization work was done in
https://github.com/zed-industries/zed/pull/15803 however the abstraction
over language models always disables tools.

## Changelog:

- Use `serde_json::Value` inside `OllamaFunctionCall` just as it's used
in `OllamaFunctionCall`. This fixes deserialization of ollama tool
calls.
- Added deserialization tests using json from official ollama api docs.
- Fetch model capabilities during model enumeration from ollama provider
- Added `supports_tools` setting to manually configure if a model
supports tools

## TODO:

- [x] Fix tool call serialization/deserialization
- [x] Fetch model capabilities from ollama api
- [x] Add tests for parsing model capabilities 
- [ ] Documentation for `supports_tools` field for ollama language model
config
- [ ] Convert between generic language model types
- [x] Pass tools to ollama

Release Notes:

- N/A

---------

Co-authored-by: Antonio Scandurra <me@as-cii.com>
Co-authored-by: Nathan Sobo <nathan@zed.dev>

Completely subjective, but I just like it better.

Release Notes:

- N/A

---------

Co-authored-by: Danilo Leal <67129314+danilo-leal@users.noreply.github.com>
Co-authored-by: Danilo Leal <daniloleal09@gmail.com>

Release Notes:

- N/A

The tool has been deleted, but the description remained.

Release Notes:

- N/A

Release Notes:

- N/A

Tweaks the MCP configuration dialog a bit:
- Increase width of popover
- Disable soft 
- Clear errors when hitting confirm

Release Notes:

- N/A

This PR adds prompt usage information, and easy access to managing your
account, to the agent overflow menu:

![CleanShot 2025-05-05 at 10 04
20@2x](https://github.com/user-attachments/assets/337a1a0b-6f71-49a0-9fe7-4fbf2ec1fc27)

Currently this UI will only show after making a request. We'll work on
eagerly getting the usage info later.

Release Notes:

- Added current prompt usage information to the agent menu (`...`) for
Zed AI users

Release Notes:

- Improved display of diffs when the agent rewrites a file from scratch.

Bypass our terminal subsystem and just run a shell in a pty.

- [x] make sure we use the same working directory
- [x] strip control chars from the pty output (?)
- [x] tests

Release Notes:

- N/A

Otherwise the panel keeps scrolling as the new token comes in and it is
almost impossible to keep the scroll position in the right place.

Also, if the user is editing, it is likely that the current generated
tokens will need to be regenerated anyway, so we may as well stop the
current progress.

Release Notes:

- Agent Beta: Stop generating tokens if previous messages are edited.

Github Copilot currently supports following models for agent mode with
tool calls. Currently we are only supporting anthropic models and not
openai and gemini. This PR add support for the openai models. I have
tested it and it works for all of them. For gemini models it seems there
is a issues from copilot side so not adding that in this PR as enabling
gemini model breaks it in the ask mode as well.

<img width="392" alt="image"
src="https://github.com/user-attachments/assets/fb7a4148-e48c-45c5-9ff9-c02f71217dfb"
/>


- [x] GPT-4.1

- [x] GPT-4.0

- [x] o4-mini

Release Notes:

- agent: Add tool calling support for gpt-4.1, gpt-4o, o4-mini when
using Copilot Chat as a provider

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

I added some padding to the editor, and removed the border around each
hunk as it would overlap in weird ways with the card container.

## Before

<img width="1148" alt="image"
src="https://github.com/user-attachments/assets/2018feaa-c847-4609-bc82-522660714b9a"
/>

## After

One Light:

<img width="1148" alt="image"
src="https://github.com/user-attachments/assets/4da1a4b6-0af2-4479-afcc-02da50178fd6"
/>

One Dark:

<img width="1148" alt="image"
src="https://github.com/user-attachments/assets/0168631d-7b76-4582-8174-c6e9c1297dc8"
/>


Release Notes:

- Improved displaying of diffs when the agent edits files.

Cherry-picked Properly restore window position for SSH projects (#29904)

Release Notes:

- Fixed SSH projects not restoring their window position on reopen

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

This PR updates the Agent callout URLs to go to the account page.

Release Notes:

- N/A

This PR updates the `Callout` constructors to be more flexible by
accepting `impl Into<SharedString>`s.

Release Notes:

- N/A

This PR removes the `UsageBanner` component, as it was no longer used.

Release Notes:

- N/A

This PR removes some unneeded tracking of the model request usage in the
`ActiveThread` and `ThreadEvent::UsageUpdated` events.

Release Notes:

- N/A

Release Notes:

- N/A

---------

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

Kinda feel like the way that makes the most sense to sort profiles in
the dropdown is by relevance/impact. "Write" is the default profile and
contains all built-in tools turned on by default, thus it should be the
first. "Ask" contains read-only tools, one step down from Write. And
"Manual" is totally empty, the least "powerful" profile, thus the last.

Release Notes:

- N/A

I am currently setting the font size corrrectly by using a custom
EditorStyle and building an element. However I need to use the same
properties as a normal editor for everything but font size.

Release Notes:

- N/A

- Removed unused `MessageBubbleDashed` icon
- Polished `Crosshair` icon SVG
- Added dropdown toggle keybinding to the profile selector tooltip
- Repositioned buttons at the message editor footer
- Updated buttons to use `Button` instead of `ButtonLike`

Release Notes:

- N/A

Release Notes:

- N/A

---------

Co-authored-by: Nathan Sobo <nathan@zed.dev>
Co-authored-by: Marshall Bowers <git@maxdeviant.com>

This is purely a cosmetic change, renamed `@rules` to `@rule` which
unifies the @mention experience (for files, threads etc. we also use
`@file`, `@thread` not `@files`, `@thread`). Would also make sense to
rename the rules picker to rule picker, but i do not wanna introduce
conflicts just for the purpose of re-naming.

Release Notes:

- N/A

I also introduced a new eval to prove the encouragement actually makes a
difference.

Release Notes:

- Improved agent behavior when streaming edits, encouraging it to
editing files as opposed to creating them from scratch

Nathan here: I also tacked on a bunch of UI refinement.

Release Notes:

- Introduced the ability to follow the agent around as it reads and
edits files.

---------

Co-authored-by: Nathan Sobo <nathan@zed.dev>
Co-authored-by: Max Brunsfeld <maxbrunsfeld@gmail.com>