DeepSeek Harness Named Subagent Library Plugin (dsh-subagent-library)

`dsh-subagent-library` is a DeepSeek Harness (DSH) plugin designed to solve the problem of cumbersome prompt descriptions when building complex multi-role workflows. It packages commonly used roles (such as code review) into a named subagent roster, supporting persistent storage and hot activation. Core features include named subagent roster management, tool integration (`list_subagents`, `delegate`), visual editing, and background mode support. Configuration is stored as YAML files under the `~/.dsh/subagents/` directory. The model can select an agent and dispatch tasks through the tool interface without manual Slash commands. After installation, restart the process and ensure proper security boundaries in the configuration.