dsh-session-diff: A Session-Level Diff View in the Right Sidebar of DeepSeek Harness

`dsh-session-diff` is a client-side plugin developed for the DeepSeek Harness (DSH) web interface, designed to address the inability of plain text views to present code changes intuitively. The plugin provides Git-style diff highlighting in the sidebar, supports viewing added and removed lines with syntax highlighting, and includes a session change statistics page. It retrieves content via DSH's `workspaceFiles`, updates conversation changes in real time, and preserves the original behavior for unchanged files. Installation requires running the repository command and restarting the service. Note that it only supports changes in the current conversation and has display limitations related to file line counts and long conversations.