resize_node

Instructions

Implementation Reference

• src/talk_to_figma_mcp/tools/modification-tools.ts:195-231 (handler)

  The handler for the 'resize_node' tool. Defined via server.tool(), it accepts nodeId, width, height, calls sendCommandToFigma('resize_node', ...), and returns a text response with the resized node's name and dimensions.

  // Resize Node Tool
  server.tool(
    "resize_node",
    "Resize a node in Figma",
    {
      nodeId: z.string().describe("The ID of the node to resize"),
      width: z.coerce.number().positive().describe("New width"),
      height: z.coerce.number().positive().describe("New height"),
    },
    async ({ nodeId, width, height }) => {
      try {
        const result = await sendCommandToFigma("resize_node", {
          nodeId,
          width,
          height,
        });
        const typedResult = result as { name: string };
        return {
          content: [
            {
              type: "text",
              text: `Resized node "${typedResult.name}" to width ${width} and height ${height}`,
            },
          ],
        };
      } catch (error) {
        return {
          content: [
            {
              type: "text",
              text: `Error resizing node: ${error instanceof Error ? error.message : String(error)}`,
            },
          ],
        };
      }
    }
  );

• src/talk_to_figma_mcp/tools/index.ts:17-21 (registration)

  registerModificationTools(server) is called from registerTools() which registers all tool categories to the MCP server.

  export function registerTools(server: McpServer): void {
    // Register all tool categories
    registerDocumentTools(server);
    registerCreationTools(server);
    registerModificationTools(server);

• src/talk_to_figma_mcp/tools/index.ts:17-29 (registration)

  registerModificationTools(server) is called from registerTools() which registers all tool categories to the MCP server.

  export function registerTools(server: McpServer): void {
    // Register all tool categories
    registerDocumentTools(server);
    registerCreationTools(server);
    registerModificationTools(server);
    registerTextTools(server);
    registerComponentTools(server);
    registerImageTools(server);
    registerSvgTools(server);
    registerVariableTools(server);
    registerFigJamTools(server);
    registerStyleTools(server);
  }

• src/talk_to_figma_mcp/types/index.ts:42-70 (schema)

  The 'resize_node' string literal is part of the FigmaCommand union type, which defines all valid command identifiers for the Figma WebSocket protocol.

  export type FigmaCommand =
    | "get_document_info"
    | "get_selection"
    | "get_node_info"
    | "create_rectangle"
    | "create_frame"
    | "create_text"
    | "create_ellipse"
    | "create_polygon"
    | "create_star"
    | "create_vector"
    | "create_line"
    | "set_fill_color"
    | "set_stroke_color"
    | "move_node"
    | "resize_node"
    | "delete_node"
    | "get_styles"
    | "get_local_components"
    | "get_team_components"
    | "create_component_instance"
    | "export_node_as_image"
    | "join"
    | "ping"
    | "set_corner_radius"
    | "clone_node"
    | "set_text_content"
    | "scan_text_nodes"
    | "set_multiple_text_contents"

• src/talk_to_figma_mcp/utils/websocket.ts:238-297 (helper)

  sendCommandToFigma() is the generic helper that sends commands (including 'resize_node') over WebSocket to the Figma plugin server. It constructs the request, manages timeouts, and resolves/rejects based on the response.

  export function sendCommandToFigma(
    command: FigmaCommand,
    params: unknown = {},
    timeoutMs: number = 300000
  ): Promise<unknown> {
    return new Promise((resolve, reject) => {
      // If not connected, try to connect first
      if (!ws || ws.readyState !== WebSocket.OPEN) {
        connectToFigma();
        reject(new Error("Not connected to Figma. Attempting to connect..."));
        return;
      }
  
      // Check if we need a channel for this command
      const requiresChannel = command !== "join";
      if (requiresChannel && !currentChannel) {
        reject(new Error("Must join a channel before sending commands"));
        return;
      }
  
      const id = uuidv4();
      const request = {
        id,
        type: command === "join" ? "join" : "message",
        ...(command === "join"
          ? { channel: (params as any).channel, sessionId: SESSION_ID }
          : { channel: currentChannel }),
        message: {
          id,
          command,
          params: {
            ...(params as any),
            commandId: id, // Include the command ID in params
          },
        },
      };
  
      // Set timeout for request
      const timeout = setTimeout(() => {
        if (pendingRequests.has(id)) {
          pendingRequests.delete(id);
          logger.error(`Request ${id} to Figma timed out after ${timeoutMs / 1000} seconds`);
          reject(new Error('Request to Figma timed out'));
        }
      }, timeoutMs);
  
      // Store the promise callbacks to resolve/reject later
      pendingRequests.set(id, {
        resolve,
        reject,
        timeout,
        lastActivity: Date.now()
      });
  
      // Send the request
      logger.info(`Sending command to Figma: ${command}`);
      logger.debug(`Request details: ${JSON.stringify(request)}`);
      ws.send(JSON.stringify(request));
    });
  }