View Balance and Remaining Tasks at the Session Header with DeepSeek-Harness-billing-plugin

The DSH billing plugin maintained by WilliamLIiii: It uses the official GET /user/balance to display the RMB balance, and estimates how many tasks can still be run based on the historical session usage of V4 Flash/Pro and the peak-valley tariff rate of 2026-08-17. This article checks the catalog page, GitHub source code and DeepSeek price list, and explains the dual-package structure, installation commands, estimation caliber and restrictions such as only RMB/manual refresh.