dsh-sonar

The DeepSeek Harness Web UI offers a powerful chat interface, yet visibility into context-window pressure, cache hit rate, token spend, and account balance is scattered across logs and console output. dsh-sonar fills that gap with a compact, draggable Fish launcher that, when clicked, reveals a full session dashboard without narrowing the conversation column.

The dashboard surfaces a color-coded context-window gauge, a donut chart breaking down uncached input, cache read/write, output, and reasoning tokens, a heuristic composition view of system prompts and tool schemas, per-turn model and tool timing, cache hit rate, and cumulative token counts. A precise total_balance readout refreshes after every completed turn. While the model is generating, lightweight bubbles rise around the launcher, giving the wait a small visual rhythm.

It is aimed at developers and teams who run long multi-turn conversations or tool-heavy workflows in the Harness Web UI and need a glanceable cost-and-capacity picture. As a strictly read-only plugin, it injects no tools, alters no prompts, writes no durable session events, and touches neither the request envelope nor KV-cache behavior, so it can be added or removed without any side effect on model output.