Selected custom agent is not persisted across VS Code restarts

[mirekholec]

Version: 1.122.1 (Universal)
Commit: 8761a55
Date: 2026-05-29T09:25:37+02:00 (1 day ago)
Electron: 39.8.8
ElectronBuildId: 13870025
Chromium: 142.0.7444.265
Node.js: 22.22.1
V8: 14.2.231.22-electron.0
OS: Darwin arm64 25.1.0

When using a custom agent within a workspace, the selected agent should be remembered after closing and reopening VS Code. Instead, the agent selection always resets to the default agent on startup.

This is particularly annoying when I have created an optimized agent with my preferred set of tools... having to re-select it manually every time I reopen the workspace adds unnecessary friction to the workflow.

Steps to Reproduce:

1. Open a workspace in VS Code
2. Select a custom agent (other than the default)
3. Close VS Code
4. Reopen the same workspace

Expected behavior:
The last selected agent remains active after reopening the workspace.

Actual behavior:
The selection reverts to the default agent every time VS Code is restarted.

[roblourens]

The basic persistence on restart does work for me, but there are some cases where it won't work as expected since it's tied to the session and so #312528 is probably what you need