themtok/vis-a-vis

Teaches an agent to use the vis-a-vis local diagram studio over its MCP interface — inspect the live Excalidraw diagram the user has open, add and edit shapes, arrows and labels, save, export PNG/SVG, and manage version history. Use whenever the user wants to create, read, modify, explain, or export a diagram in vis-a-vis. Covers the eight MCP tools, the check-first session model, edit_diagram op semantics, and error codes.