VS Code Copilot

One command saves the current chat session as a file.

What you end up with

One .json file per exported chat session.

1
Export a session
Open the Command Palette (Cmd+Shift+P on Mac, Ctrl+Shift+P on Windows) and run Chat: Export Chat. It saves the current session as a .json file. Repeat per session.
2
Upload the files here
Upload the .json files. Multi-select works — bring many at once.

Got your export (.json)?

Bring it in — pick the conversations that matter (never just one), and your own judgment becomes rules you approve one by one.