dsh-req-workbench: DeepSeek Harness Requirements Management Workbench

dsh-req-workbench is a plugin for the DeepSeek Harness Web UI designed to convert conversation content into a structured requirements list. Key features include creating and editing requirements and subtasks, importing from conversation turns or pasted Markdown text, and polling every minute to remind users of subtasks that will time out within 24 hours. Installation is performed via pnpm using the official command, after which the Web UI must be restarted to use the plugin. The plugin relies on an ESM-built host; using CommonJS in a Node 24 environment may cause crashes.