dsh (DeepSeek Harness) file explorer: browse the active session's workspace and preview files (Markdown/image/PDF/text/binary) right inside the chat GUI — a standard Cordis bundle plugin (read-only /dsh-files host routes + a conversation.view file tab).
Options plate on the DeepSeek Harness composer's + button — pick files and folders from the project or anywhere on the machine, upload from your device, or run a slash command — with inline path chips and a Claude Code-style attachment preview.