NanoBanana MCP

Instructions

Implementation Reference

• src/index.ts:959-994 (handler)

  The implementation of the get_image_history tool handler which retrieves image history from a conversation context.

  case "get_image_history": {
    const { conversation_id } = args as any;
  
    const context = conversations.get(conversation_id);
    if (!context || !context.imageHistory?.length) {
      return {
        content: [
          {
            type: "text",
            text: `No image history found for session: ${conversation_id}`,
          },
        ],
      };
    }
  
    const historyInfo = context.imageHistory.map((img, index) => ({
      index,
      reference: `history:${index}`,
      id: img.id,
      filePath: img.filePath,
      prompt: img.prompt,
      type: img.type,
      timestamp: new Date(img.timestamp).toISOString(),
    }));
  
    return {
      content: [
        {
          type: "text",
          text: `Image History for session "${conversation_id}" (${context.imageHistory.length} images):\n\n` +
                `Use "last" to reference the most recent image, or "history:N" (e.g., "history:0") to reference by index.\n\n` +
                JSON.stringify(historyInfo, null, 2),
        },
      ],
    };
  }

• src/index.ts:394-405 (registration)

  Tool registration for get_image_history with its input schema definition.

  name: "get_image_history",
  description: "Get the list of generated/edited images in a session for reference",
  inputSchema: {
    type: "object",
    properties: {
      conversation_id: {
        type: "string",
        description: "The session ID to get image history for",
      },
    },
    required: ["conversation_id"],
  },