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>

Release Notes:

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

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

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 updates Collab to use the new subscription usage tables added in
#29847.

Release Notes:

- N/A

This PR adds two new tables:

- `subscription_usages_v2`
- `subscription_usage_meters_v2`

These are the same as the old ones, except using UUIDs as primary keys.

Release Notes:

- N/A

This PR fixes an issue where we would erroneously try to transfer
existing subscription usage when a Zed Pro trial was canceled.

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>

- [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

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>

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>

I also moved the breakpoint store to session from local mode, because
both remote/local modes will need the ability to remove active debug
lines.

Release Notes:

- N/A

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>

This PR releases v0.5.0 of the Zed extension API.

Support for this version of the extension API will land in Zed v0.186.x.

Release Notes:

- N/A

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

Release Notes:

- N/A

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).

This PR fixes an issue where users were not being added to the feature
flags when being migrated to the new billing.

Release Notes:

- N/A

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

Follow-up of https://github.com/zed-industries/zed/pull/29706

Release Notes:

- N/A

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

This PR updates the billing migration endpoint to work for users who do
not have an active subscription.

This will allow us to use the endpoint to migrate all users.

Release Notes:

- N/A

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

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/29706

Release Notes:

- N/A

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

Release Notes:

- Fixed the tasks from LSP not inheriting the worktree environment

----

cc @SomeoneToIgnore

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>

## Preview 

![image](https://github.com/user-attachments/assets/203a577f-3b38-4017-9571-de1234415162)


### TODO
- [x] Add scenario picker to new session modal
- [x] Make debugger start action open new session modal instead of task
modal
- [x] Fix `esc` not clearing the cancelling the new session modal while
it's in scenario or attach mode
- [x] Resolve debug scenario's correctly

Release Notes:

- N/A

Follow-up of https://github.com/zed-industries/zed/pull/29706

Instead of doing `cargo check` manually, use rust-analyzer's flycheck:
at the cost of more sophisticated check command configuration, we keep
much less code in Zed, and get a proper progress report.

User-facing UI does not change except `diagnostics_fetch_command` and
`env` settings removed from the diagnostics settings.

Release Notes:

- N/A

Like the title says

Release Notes:

- N/A

This PR makes the thread completion mode non-optional.

Release Notes:

- N/A

This PR updates the `GET /billing/usage` endpoint to return the
increased usage limit for users in the extended trial.

Release Notes:

- N/A

This PR fixes a typo in `typos.toml`. How ironic.

Release Notes:

- N/A

This PR adds a new `POST /billing/subscriptions/migrate` endpoint for
migrating users to the new billing system.

When called with a GitHub user ID this endpoint will:

1. Find the active billing subscription for this user (if they have one)
2. Cancel the subscription and send a final invoice
3. Ensure the user is in the `new-billing` and `assistant2` feature
flags

Release Notes:

- N/A

Should cut down on the number of CI cycles if you're forgetful like I
am!

Release Notes:

- N/A

Release Notes:

- Changed the git branch picker to make remote-tracking branches less
prominent

---------

Co-authored-by: Anthony Eid <hello@anthonyeid.me>

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.

This PR adds the ability to initiate a checkout session for the Zed Free
plan.

Release Notes:

- N/A

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>

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>

This is desirable for when we want to use a `ButtonLike` to show a
tooltip over an icon, and we don't want it to show the "not allowed"
cursor on hover.

Release Notes:

- N/A