dsh-session-usage-plugin

In a DeepSeek Harness session, token spend lives scattered across projection fields and event streams. There is no single place to see how much a conversation cost, which model burned the most, or which interaction was the priciest. dsh-session-usage-plugin gathers all of that into a dedicated Usage tab inside the session, so you can inspect the full picture without leaving the conversation or digging through raw logs.

The plugin offers two tables: model usage (one row per model, ordered by total tokens descending) and turn usage (one row per turn, sortable by any column). A row is a complete prompt-and-reply exchange, not an individual message, which eliminates the most common token-counting error of attributing the same exchange's usage once per message. You can filter by Session, Today, Yesterday, 3-day, 7-day, or custom time ranges; export figures as Stats CSV or Stats JSON and the full conversation as Chat Markdown or Chat JSONL; and five reader preferences (sort order, active leaf, scroll position, range, custom range) are remembered automatically across reloads.

Built for developers doing long iterative debugging in Harness, engineers who need per-turn cost accounting, and teams that want an exportable usage snapshot for review. The plugin installs as a standalone profile, leaves every file in deepseek-harness untouched, and reads only the host's settled projections and event window, so every number matches the status bar and session pills exactly.