Haibala DeepSeek Harness Extension Center

`haibala-aii/dsh-extensions-extensionshub` is a third-party extension for DeepSeek Harness (DSH), designed to address the fragmentation of extensions by providing a unified entry point for installation and browsing. It features GitHub extension directory search, sidebar navigation, a fullscreen overlay, and documentation support. After installing it via command, developers can use it to discover third-party extensions, manage SKILL documentation, and configure MCP servers. The extension only occupies space when the host application declares a specific slot, and it has no official affiliation with DeepSeek.