dsh-advanced-sidebar

The DeepSeek Harness Web Client spins up agent sessions, but the browser itself cannot run git, allocate a pseudo-terminal, or launch an editor. dsh-advanced-sidebar bridges those structural gaps into the UI: it takes a single seat in the session-header utility row, and every panel acts on that session's own working directory rather than a repository root.

Eight panels cover the workflow end to end. Changes reads porcelain v2 status, stages or unstages per file or per group, commits with an optional model-generated message derived from the staged patch alone, and pushes to upstream or publishes when no upstream exists. Terminal allocates up to maxTerminals independent xterm instances on a tab strip, with signal-level Ctrl+C and scrollback replay on reopen. The remaining panels handle a file browser with text preview, a dev-server preview with logs, background-task management with stop and output review, Open in for external editors or the OS file manager, and Archive or Delete for the session itself. All panels live in a resizable dock on the right of the app frame, bounded by a 400 px conversation floor so the dialogue is never obscured.

Safety is threaded through the design: every path is verified to sit inside the repository before git sees it, pathspecs are separated with --, commit messages cross as a single argument so no shell can reinterpret them, credential prompts are refused rather than waited on, and git restore is deliberately absent from the UI because it is the one irreversible verb in the set. This plugin suits developers who already run agent sessions inside Harness and would rather inspect diffs, fire off a quick shell, or preview a dev server without leaving the browser for a separate terminal and IDE.