Mermaid Visual Editor — DeepSeek Harness (dsh) Browser Extension

`mermaid2aichat-dsh` is a visualization plugin for DeepSeek Harness, maintained by supergameboy, designed to reduce the need for frequent switching between flowchart editing and interacting with an Agent. It provides a dismissible right-side editing panel, supports real-time bidirectional synchronization between Mermaid code and the canvas, and adapts to screen sizes and dark mode. Core features include support for multiple diagram types, drag-and-drop node editing, session isolation and persistence, and deep interaction with the Agent. The Agent can import diagrams via the global tool `mermaid_load`; once editing is complete, the diagram can be sent back to the conversation with one click or referenced through a command. It is easy to install, requires no build step, and is suitable for development workflows that involve iterative adjustments and feedback to the Agent.