Unable to create diagrams using SAP shape library via MCP tools

[luksmet]

I wasn’t able to create a diagram that uses SAP-specific shapes, It seems that the generated diagram uses default/basic shapes only.
Does the MCP server support all draw.io shape libraries? If yes, is there a way to enable/select additional libraries (e.g., SAP) when generating the diagrams, or is the MCP server intentionally limited to the default set? Thanks

[davidjgraph]

The server does virtually nothing. The MCP is just a prompt asking Claude to build draw.io files, the format of which it understands. You should be able to prompt it to just use SAP icons, what was your prompt?

[luksmet]

I tested create_diagram tool via claude.ai
Here the prompt:
Use drawio mcp tool create_diagram to build a diagram using the native integrated SAP shape library.

1. Create a container for 'SAP BTP subaccount' and place the native 'SAP Integration Suite' icon inside it.
2. Create a container for 'On-Premise' and place the native 'SAP Cloud Connector' and 'SAP S/4HANA' icons inside it.
3. Draw a connection from 'SAP Integration Suite' to 'SAP Cloud Connector'. Label it 'Secure Tunnel'.
4. Draw a connection from 'SAP Cloud Connector' to 'SAP S/4HANA'. Label it 'Internal Network'.
5. Apply SAP-standard styling
6. Arrange the components horizontally: SAP BTP on the left, On-Premise on the right.

Result:

Drawio:

<!-- SAP BTP Subaccount Container -->
<mxCell id="2" value="SAP BTP Subaccount" style="points=[[0,0],[0.25,0],[0.5,0],[0.75,0],[1,0],[1,0.25],[1,0.5],[1,0.75],[1,1],[0.75,1],[0.5,1],[0.25,1],[0,1],[0,0.75],[0,0.5],[0,0.25]];shape=mxgraph.sap.r4.b_bt;strokeColor=#009de0;strokeWidth=2;fillColor=#e6f4fb;fontColor=#001e2d;fontStyle=1;fontSize=13;verticalAlign=top;whiteSpace=wrap;arcSize=4;" vertex="1" parent="1">
  <mxGeometry x="80" y="120" width="280" height="220" as="geometry" />
</mxCell>

<!-- SAP Integration Suite icon inside BTP -->
<mxCell id="3" value="SAP Integration Suite" style="shape=mxgraph.sap.r4.s.integration_suite;fillColor=#009de0;strokeColor=#009de0;fontColor=#001e2d;fontStyle=1;fontSize=11;labelPosition=center;verticalLabelPosition=bottom;verticalAlign=top;align=center;whiteSpace=wrap;" vertex="1" parent="2">
  <mxGeometry x="90" y="60" width="100" height="100" as="geometry" />
</mxCell>

<!-- On-Premise Container -->
<mxCell id="4" value="On-Premise" style="points=[[0,0],[0.25,0],[0.5,0],[0.75,0],[1,0],[1,0.25],[1,0.5],[1,0.75],[1,1],[0.75,1],[0.5,1],[0.25,1],[0,1],[0,0.75],[0,0.5],[0,0.25]];shape=mxgraph.sap.r4.b_bt;strokeColor=#7b7b7b;strokeWidth=2;fillColor=#f5f5f5;fontColor=#001e2d;fontStyle=1;fontSize=13;verticalAlign=top;whiteSpace=wrap;arcSize=4;" vertex="1" parent="1">
  <mxGeometry x="560" y="120" width="360" height="220" as="geometry" />
</mxCell>

<!-- SAP Cloud Connector icon inside On-Premise -->
<mxCell id="5" value="SAP Cloud Connector" style="shape=mxgraph.sap.r4.s.cloud_connector;fillColor=#7b7b7b;strokeColor=#7b7b7b;fontColor=#001e2d;fontStyle=1;fontSize=11;labelPosition=center;verticalLabelPosition=bottom;verticalAlign=top;align=center;whiteSpace=wrap;" vertex="1" parent="4">
  <mxGeometry x="40" y="60" width="100" height="100" as="geometry" />
</mxCell>

<!-- SAP S/4HANA icon inside On-Premise -->
<mxCell id="6" value="SAP S/4HANA" style="shape=mxgraph.sap.r4.s.s_4hana;fillColor=#e37329;strokeColor=#e37329;fontColor=#001e2d;fontStyle=1;fontSize=11;labelPosition=center;verticalLabelPosition=bottom;verticalAlign=top;align=center;whiteSpace=wrap;" vertex="1" parent="4">
  <mxGeometry x="220" y="60" width="100" height="100" as="geometry" />
</mxCell>

<!-- Connection: SAP Integration Suite to SAP Cloud Connector (Secure Tunnel) -->
<mxCell id="7" value="Secure Tunnel" style="edgeStyle=orthogonalEdgeStyle;rounded=0;strokeColor=#009de0;strokeWidth=2;fontColor=#001e2d;fontStyle=1;fontSize=11;dashed=1;dashPattern=8 4;exitX=1;exitY=0.5;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;endArrow=block;endFill=1;startArrow=block;startFill=1;" edge="1" source="3" target="5" parent="1">
  <mxGeometry relative="1" as="geometry" />
</mxCell>

<!-- Connection: SAP Cloud Connector to SAP S/4HANA (Internal Network) -->
<mxCell id="8" value="Internal Network" style="edgeStyle=orthogonalEdgeStyle;rounded=0;strokeColor=#7b7b7b;strokeWidth=2;fontColor=#001e2d;fontStyle=1;fontSize=11;exitX=1;exitY=0.5;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;endArrow=block;endFill=1;" edge="1" source="5" target="6" parent="4">
  <mxGeometry relative="1" as="geometry" />
</mxCell>

[luksmet]

Can you provide an example prompt to get a diagram created with SAP icons (shape=mxgraph.sap.icon)?