Nah the extension API is pretty limited. Copilot uses proprietary API’s not available to extensions.
If you really want an integrated experience, and not just a sidebar UI, you need to go the same route as Cursor and fork Code-OSS (the MIT-licensed part of VS Code, analogous to Chromium for Chrome)
If you really want an integrated experience, and not just a sidebar UI, you need to go the same route as Cursor and fork Code-OSS (the MIT-licensed part of VS Code, analogous to Chromium for Chrome)