join_channel
Enable communication with Figma by joining a specific channel via the Model Context Protocol integration.
Instructions
Join a specific channel to communicate with Figma
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Implementation Reference
- src/talk_to_figma_mcp/server.ts:2961-3006 (registration)Registers the 'join_channel' MCP tool. The handler calls joinChannel(channel) to send a 'join' message to the WebSocket server, enabling communication with Figma plugin.server.tool( "join_channel", "Join a specific channel to communicate with Figma", { channel: z.string().describe("The name of the channel to join").default(""), }, async ({ channel }) => { try { if (!channel) { // If no channel provided, ask the user for input return { content: [ { type: "text", text: "Please provide a channel name to join:", }, ], followUp: { tool: "join_channel", description: "Join the specified channel", }, }; } await joinChannel(channel); return { content: [ { type: "text", text: `Successfully joined channel: ${channel}`, }, ], }; } catch (error) { return { content: [ { type: "text", text: `Error joining channel: ${error instanceof Error ? error.message : String(error) }`, }, ], }; } } );
- Handler function for 'join_channel' tool. Validates channel input, calls joinChannel helper, returns success/error messages.async ({ channel }) => { try { if (!channel) { // If no channel provided, ask the user for input return { content: [ { type: "text", text: "Please provide a channel name to join:", }, ], followUp: { tool: "join_channel", description: "Join the specified channel", }, }; } await joinChannel(channel); return { content: [ { type: "text", text: `Successfully joined channel: ${channel}`, }, ], }; } catch (error) { return { content: [ { type: "text", text: `Error joining channel: ${error instanceof Error ? error.message : String(error) }`, }, ], }; } }
- Input schema for 'join_channel' tool defining the required 'channel' parameter.{ channel: z.string().describe("The name of the channel to join").default(""), },
- Helper function that sends the 'join' command to the WebSocket server with the specified channel name and updates the current channel state.async function joinChannel(channelName: string): Promise<void> { if (!ws || ws.readyState !== WebSocket.OPEN) { throw new Error("Not connected to Figma"); } try { await sendCommandToFigma("join", { channel: channelName }); currentChannel = channelName; logger.info(`Joined channel: ${channelName}`); } catch (error) { logger.error(`Failed to join channel: ${error instanceof Error ? error.message : String(error)}`); throw error; }