DeepSeek Harness Plugin: dsh-remote-ssh

dsh-remote-ssh is a DeepSeek Harness plugin designed to connect to legacy host systems such as Unix, IBM AIX, and macOS via SSH. It runs locally, defaulting to read-only mode and a command whitelist policy. The plugin supports host status discovery and command execution, and uses BatchMode SSH to disable interactive logins. By configuring hosts, allowed command lists, and ssh-agent-managed credentials, users can perform controlled operations on remote hosts while maintaining security.