Ultra Slash is a plugin for DeepSeek Harness that adds a separate plugin-command group to the / menu in the chat input. Its core command, /steer, hands content to the model for the next step without interrupting the current conversation. Additional commands include /new for a blank session, /skill to save a solution as a project skill, and /docs to write reasoning and solutions into docs as markdown. Short aliases for common /steer inputs can be defined in settings. Use it when you need to redirect the model or persist outcomes mid-session. Note: install with an explicit version number and restart dsh web afterward.