[Error] unhandlederror-Agent host proxy is not available because no upstream agent host endpoint was configu...

## Error Message
````
unhandlederror-Agent host proxy is not available because no upstream agent host endpoint was configured.
````

## Stack Trace
> ⚠️ **Stack not deminified** — no frames could be mapped to original source. The frames below are minified; line/column numbers refer to the bundled JavaScript, not the original TypeScript source. To deminify, either re-run the `create_issue` MCP tool with the VS Code build commit hash (and, for extension errors, the extension id + version), or call the standalone `deminify_stack` MCP tool.

````
Error: Agent host proxy is not available because no upstream agent host endpoint was configured. at FS.call (:602:135874) at vy.onPromise (:472:36751) at vy.onRawMessage (:472:36174) at kc.value (:472:35440) at T._deliver (:431:3245) at T._deliverQueue (:431:3334) at T.fire (:431:3668) at Hl.fire (:475:40712) at Bm._receiveMessage (:475:45614) at kc.value (:475:42918) at T._deliver (:431:3245) at T.fire (:431:3563) at Ry.acceptChunk (:475:38516) at kc.value (:475:37649) at T._deliver (:431:3245) at T.fire (:431:3563) at xw._processReadQueue (:482:9708) at xw.acceptFrame (:482:9368) at Es._acceptChunk (:482:7041) at :482:3615 at Socket.e (:482:1851) at Socket.emit (node:events:509:28) at addChunk (node::563:12) at readableAddChunkPushByteMode (node::514:3) at Readable.push (node::394:5) at TCP.onStreamRead (node::189:23)
````

## Details
| Property | Value |
| --- | --- |
| Bucket ID | [`c66ae0da-bdb0-2606-a867-21c58eeea755`](https://errors.code.visualstudio.com/bucket/c66ae0da-bdb0-2606-a867-21c58eeea755?product=VSCode&extension=core&commit=d7465d6f56c9afb8ed3696a9eaeb4f3f6d62156d) |
| Version | 1.131.0-insider |
| Commit | [`d7465d6f`](https://insiders.vscode.dev/github/microsoft/vscode/tree/d7465d6f56c9afb8ed3696a9eaeb4f3f6d62156d) |
| Last Seen | Tue Jul 21 2026 23:58:42 GMT+0000 (Coordinated Universal Time) |
| Platforms | Windows, Mac, Linux |
| Product | VSCode |

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*This issue was automatically created from the VS Code Errors Dashboard*