Nano Banana MCP Server

/** * Zod schemas for Nano Banana MCP Server tool inputs */ import { z } from "zod"; import { ASPECT_RATIOS, RESOLUTIONS, MODELS } from "./types.js"; /** * Model selection schema */ export const ModelSchema = z .enum([MODELS.NANO_BANANA, MODELS.NANO_BANANA_PRO]) .default(MODELS.NANO_BANANA_PRO) .describe("Model to use. 'gemini-3-pro-image-preview' (Nano Banana Pro) for best quality and features, " + "'gemini-2.5-flash-image' (Nano Banana) for faster generation. Default: Nano Banana Pro"); /** * Aspect ratio schema */ export const AspectRatioSchema = z .enum(ASPECT_RATIOS) .optional() .describe("Aspect ratio of the generated image. Options: 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9. " + "Default: varies by prompt"); /** * Resolution schema (only for Nano Banana Pro) */ export const ResolutionSchema = z .enum(RESOLUTIONS) .optional() .describe("Resolution of the generated image (Nano Banana Pro only). Options: 1K, 2K, 4K. " + "Note: Must use uppercase 'K'. Default: 1K"); /** * Schema for generate_image tool */ export const GenerateImageInputSchema = z .object({ prompt: z .string() .min(1, "Prompt cannot be empty") .max(10000, "Prompt too long (max 10000 characters)") .describe("Text description of the image to generate. Be descriptive for better results. " + "Include details about style, lighting, composition, colors, and mood."), model: ModelSchema, aspect_ratio: AspectRatioSchema, resolution: ResolutionSchema, use_google_search: z .boolean() .optional() .default(false) .describe("Enable Google Search grounding for real-time information (e.g., current weather, news). " + "Only available with Nano Banana Pro. Default: false"), }) .strict(); /** * Schema for edit_image tool */ export const EditImageInputSchema = z .object({ prompt: z .string() .min(1, "Prompt cannot be empty") .max(10000, "Prompt too long (max 10000 characters)") .describe("Text description of the edit to make. Describe what to add, remove, or modify. " + "Be specific about the desired changes."), image_base64: z .string() .min(1, "Image data cannot be empty") .describe("Base64-encoded image data to edit. Do not include data URI prefix."), image_mime_type: z .string() .regex(/^image\/(png|jpeg|jpg|gif|webp)$/, "Invalid MIME type") .describe("MIME type of the image. Supported: image/png, image/jpeg, image/jpg, image/gif, image/webp"), model: ModelSchema, aspect_ratio: AspectRatioSchema, resolution: ResolutionSchema, }) .strict(); /** * Schema for multi-image editing (compose_images tool) */ export const ComposeImagesInputSchema = z .object({ prompt: z .string() .min(1, "Prompt cannot be empty") .max(10000, "Prompt too long (max 10000 characters)") .describe("Text description of how to compose/combine the images. " + "Describe the desired scene, style transfer, or composition."), images: z .array(z.object({ base64: z.string().min(1, "Image data cannot be empty"), mime_type: z .string() .regex(/^image\/(png|jpeg|jpg|gif|webp)$/, "Invalid MIME type"), })) .min(1, "At least one image is required") .max(14, "Maximum of 14 images allowed") .describe("Array of images to use as references. Up to 14 images total: " + "6 objects and 5 humans for character consistency. Each image needs base64 data and mime_type."), model: z .literal(MODELS.NANO_BANANA_PRO) .default(MODELS.NANO_BANANA_PRO) .describe("Model to use. Multi-image composition requires Nano Banana Pro (gemini-3-pro-image-preview)."), aspect_ratio: AspectRatioSchema, resolution: ResolutionSchema, }) .strict(); /** * Schema for list_models tool */ export const ListModelsInputSchema = z .object({ response_format: z .enum(["markdown", "json"]) .optional() .default("markdown") .describe("Output format: 'markdown' for human-readable or 'json' for machine-readable. Default: markdown"), }) .strict(); //# sourceMappingURL=schemas.js.map