dsh-file-explorer

When you are coding inside the DeepSeek Harness web GUI, you often need a quick glance at what files live in the working directory, yet the only built-in option is to drop into a terminal and type ls. dsh-file-explorer brings that into the sidebar itself: it docks in the footer slot directly above the Settings row, shares the sidebar background and width, and carries no card, border, or shadow, so it reads as a native part of that column. No pop-up, no extra tab; a peripheral glance reveals the tree, and a click expands whatever you need.

The plugin leans on three words: light, fast, and safe. The tree is lazy-loaded, so only the levels you actually open hit disk; expansion state survives re-renders, and the name-filter box narrows already-loaded levels. The top edge is a draggable resize handle, and the panel width tracks the sidebar column in real time via ResizeObserver. On the safety side the host half exposes a single read-only route; every request is containment-checked against the session working directory, any path escaping that root is rejected with a 400, each listing is capped at 800 entries, file contents are never read, and no outbound network call is ever made. There is no plugin configuration at all. The one preference is a toggle under Settings General, kept in memory and reset to on on every (re)load, deliberately out of settings.yaml. UI strings follow the host locale automatically, and the panel disappears entirely when the sidebar collapses to its 56 px rail.

This is aimed at engineers who do everyday session work in the Harness web GUI and find themselves bouncing to a terminal to check generated artefacts, inspect a multi-level working directory, or simply confirm what the last run produced. It is not a file editor, not an uploader, not a search engine. It is a quiet, restrained, read-only tree that sits where your eye already is and gets out of the way when you close it.