@type t() :: %Gleanex.Platform.SkillSourcePreview{
  commit_sha: String.t(),
  description: String.t(),
  display_name: String.t(),
  file_tree: [String.t()],
  files: [Gleanex.Platform.SkillSourcePreviewFile.t()],
  main_content: String.t(),
  source_url: String.t()
}