@tools/flow-graph-mcp-server

MCP server for AI-driven Babylon.js Flow Graph authoring.

Provides

• create, inspect, validate, and delete flow graphs
• add blocks and connect data or signal ports
• update block properties and context variables
• export coordinator JSON or graph-only JSON
• import previously exported flow graph JSON

Typical Workflow

create_graph -> add_block -> connect_data/connect_signal -> set_block_properties -> validate_graph -> export_graph_json

Use the full coordinator JSON when handing the result to Scene MCP.

Binary

babylonjs-flow-graph

Build And Run

npm run build -w @tools/flow-graph-mcp-server
npm run start -w @tools/flow-graph-mcp-server

Integration

The exported coordinator JSON can be attached to the Scene MCP server through attach_flow_graph, either inline or via coordinatorJsonFile.

Related Files

• src/index.ts: MCP tool registration
• src/flowGraphManager.ts: graph manager and export/import logic
• src/blockRegistry.ts: Flow Graph block catalog