Update a stale session branch by rebasing onto the latest origin. Use when the upstream has moved significantly and the session needs to catch up, resolving conflicts by preserving upstream changes and adapting session work to fit.
$npx -y skills add microsoft/vscode --skill sync-upstreamInstalls into the current project.
Run `npx skills use "https://github.com/microsoft/vscode" --skill "microsoft/vscode/sync-upstream"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/microsoft/vscode" that are relevant to the current task. Run `npx skills add "https://github.com/microsoft/vscode"` and select the relevant skills, then follow their instructions.