Add a new cask to homebrew-dotnet-sdk-versions. Use this skill whenever asked to support a new .NET SDK version or feature band that doesn't have a cask yet, create a stub cask, add a new major/minor/preview release, or add support for a new dotnet-sdk version (e.g. "add dotnet-sdk12-0-100" or "support .NET 11 preview").
Create an update PR for an existing cask in homebrew-dotnet-sdk-versions. Use this skill whenever asked to manually bump a cask to a newer version, update sha256/url/version fields, force-update a cask the auto-updater missed, or open a PR to update a specific dotnet-sdk cask version.
Fix or update the CI workflow for homebrew-dotnet-sdk-versions. Use this skill whenever asked to fix a broken CI, investigate a CI failure, update .github/workflows/ci.yml, or sync CI changes from the official Homebrew cask. Always consult the official Homebrew cask CI as the reference before making any changes.