yuandian_dsh_plugin

A recurring friction for legal research with AI assistants is that PRC statutes, court opinions, corporate registry records, and securities-compliance materials are scattered across separate platforms and cannot be queried in a single conversational thread. The huayu-yuandian-legal-data plugin bridges the Yuandian (Chineselaw) open-platform MCP endpoint into DeepSeek Harness, so you can retrieve mainland-China regulations with their validity status, judgment documents and analogous cases, corporate registration, risk, litigation and IP details, as well as securities regulatory cases and listed-company announcements, all within one session without switching browsers or reconciling sources by hand.

Four official Yuandian skills cover statute search, case search, corporate search, and securities compliance, backed by a full MCP tool bridge that handles bounded pagination, live tool-list refresh, exponential-backoff reconnection, call timeout, and cancellation. Authentication supports both OAuth (Authorization Code + PKCE S256 with dynamic client registration and refresh-token support) and a static API key, switchable at any time from the settings page. On first install the plugin idles without opening a browser or firing any network request until you explicitly start a connection. Non-loopback endpoints are forced to HTTPS, credentials are written to a local 0600-permission file, and neither API keys nor tokens ever surface in logs.

The plugin is aimed at mainland-China practicing lawyers, in-house counsel, compliance officers, and legal researchers who want to fold the Yuandian data source into a daily AI-assisted workflow and drive multi-turn legal research in natural language. It is a zero-backend, ready-to-use integration. Retrieved legal data should still be verified against its source, currency, and scope of applicability and does not constitute formal legal advice.