dsh-visual-trace: A DeepSeek Harness Plugin for Natural Language Trace Visualization and Review Across Execution Modes

The `dsh-visual-trace` plugin solves the challenge of native trace debugging for DeepSeek Harness (DSH) in non-browser environments such as Headless and SDKs. Built on the official `session/event` logs as its data source, it enables unified output of visualized traces across web interfaces, command-line interfaces, headless stderr streams, and SDKs. It supports node differentiation, multi-dimensional filtering, and export in multiple formats (text, Markdown, and JSON). Developers can install the plugin and use the `/visual-trace` command or SDK API to flexibly trace agent execution flows across multiple surfaces.