Tool Reference
Prototyping & interactions
Current MCP boundary for prototype and motion work.
The external MCP server’s batch_design schema has no operation for prototype flows, reactions, transitions, or animation keyframes. Older create_flow and set_reaction examples are not valid for this alpha server.
Authored animation clips live in doc/motion.json, apart from page .fnx nodes. Read the existing schema before editing clips, tracks, or keyframes with file tools, preserve IDs, and validate screenshots at several motion_clip / playhead_ms samples. The external MCP tools can inspect motion samples, but cannot author a clip through batch_design. Check the current app and known issues for UI readiness.