dsh-message-navigator

A long DeepSeek Harness session can quickly pile up dozens or even hundreds of messages, yet the default Web UI only renders the latest history page. Scrolling back to locate an early instruction, a follow-up question, or a specific context snippet is slow and tedious. dsh-message-navigator places a Codex-style tick rail along the left edge of the conversation area: every user message gets a tick, hovering reveals a preview, and a single click smoothly scrolls you straight to that message.

Ticks are generated only for user messages; AI replies, reasoning traces, tool calls, and status text are all excluded so the rail stays uncluttered. A dark, elongated tick always tracks your current reading position, and full keyboard navigation is supported with arrow keys, Home, End, and Enter. The plugin loads the complete history automatically, bypassing the default pagination, and keeps pace with streaming output, incoming messages, historical scroll-back, and session switches without a manual refresh. It reads the --dsw-* theme variables for dark-mode and reduced-motion support, and hides itself on narrow screens to preserve layout space.

If you routinely run long, multi-turn conversations in Harness, need to jump back and forth between early prompts and the latest output, or prefer a keyboard-first workflow, this navigator cuts the cost of finding a specific message dramatically. All logic runs locally in the browser: no model requests are intercepted, no network calls are made, no telemetry is collected, and nothing is persisted to disk. Install it, use it, close it, and nothing lingers.