Context in Copilot chat is disabled by default in VSCode Insiders

[AdamWr]

Does this issue occur when all extensions are disabled?: It's related to GitHub Copilot Chat extension

• VS Code Version:

Version: 1.101.0-insider (user setup)
Commit: 1d7ad01f171443c8b2401f031c2e8f686121515c
Date: 2025-05-22T05:04:08.035Z
Electron: 35.4.0
ElectronBuildId: 11602177
Chromium: 134.0.6998.205
Node.js: 22.15.0
V8: 13.4.114.21-electron.0
OS: Windows_NT x64 10.0.26100

• OS Version: Windows 11

Steps to Reproduce:

1. Open VSCode Insiders
2. Open any file with some code
3. Open Chat
4. Ask to explain the code

File context is disabled so it ask to provide a code (in stable build context is enabled by default so it just explain the code).
Also it seems that it's not possible to add specific lines as a context.

Video below, left Insiders, right stable build.

2025-05-22.17-11-29.mp4

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I guess that it might be related to - #243223 and probably this commit - e26c17e (but I'm not sure, just guessing).
So I suppose that it was done intentionally, though I liked an option to select part of the code and ask about it in Copilot Chat.

[RobertOstermann]

This seems like a step backwards. Now I have to select the file every time I want it included. And including a section of code requires more steps as well. I prefer the original way this was done of always including this file and the section that was selected.