This separates the two user-message identities we currently need in
agent threads:
- `protocol_id`: the ACP `messageId` used to group or split streamed
message chunks from ACP agents.
- `client_id`: the Zed-generated user message ID used by the native
agent for truncate, rewind, edit/regenerate, checkpoints, token usage,
and persistence.
The main behavior change is that ACP protocol message IDs now affect
message merging/rendering without leaking Zed-native client IDs into ACP
agents by default. Agents that can accept Zed-generated user message IDs
opt into that path through `AgentSessionClientUserMessageIds`, which
owns both ID generation and prompt submission. The native Zed agent
implements that capability; normal ACP agents continue through the
protocol-only `prompt` path.
In ACP v2 we'll have a mechanism for getting user message replays that
will allow the agent to adequately generate it's own opaque id that we
can then use for these other capabilities. But for now, this split at
least makes sure we keep the two concepts distinct.
Release Notes:
- N/A
---------
Co-authored-by: Bennet Bo Fenner <bennetbo@gmx.de>
We finally have a cancellation mechanism to use! Made the non
side-effectful handlers stop their work if we get a cancel request
notification.
Release Notes:
- N/A
Given the model list is dynamic now, we need a wait
Self-Review Checklist:
- [x] I've reviewed my own diff for quality, security, and reliability
- [x] Unsafe blocks (if any) have justifying comments
- [x] The content is consistent with the [UI/UX
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
- [x] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable
Release Notes:
- N/A
Testing out Niko's new SDK design
Self-Review Checklist:
- [x] I've reviewed my own diff for quality, security, and reliability
- [x] Unsafe blocks (if any) have justifying comments
- [x] The content is consistent with the [UI/UX
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
- [x] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable
Release Notes:
- N/A
## Context
Fixes some issues I ran into when running this on a remote machine.
## Self-Review Checklist
<!-- Check before requesting review: -->
- [x] I've reviewed my own diff for quality, security, and reliability
- [x] Unsafe blocks (if any) have justifying comments
- [x] The content is consistent with the [UI/UX
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
- [x] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable
Release Notes:
- N/A
This removes the assumption that one project <-> one native agent. The
native agent now maintains a project per session. We don't make use of
this right now, but it will come in handy once we start sharing ACP
connections globally.
Release Notes:
- N/A