Retrieve a curated UI template by its search result id after search_ui_templates. For a relevant new page, replacement, substantial redesign, or reusable component, call this before implementation rather than stopping at the search summary. Returns original source files, SHA-256 hashes, pinned upstream revision, dependencies, author, license and Chinese/English integration prompt. Keep the original appearance. Large templates return omitted_files; retrieve each with file set to its exact name to get all sources without truncation. A large file returns next_offset: repeat with file_offset until null and concatenate content. Full required notices may be linked in license_notice_files. Set include_source=false for metadata only.