Show HN: Structured JSON Prompts for AI Image Generation

image-json-gen is a lightweight repository for defining and serializing structured image-generation prompts in TypeScript. Using a well-defined JSON schema and SuperJSON, it ensures consistent, reproducible prompts for AI-driven image generation tools.

• Type-safe Prompt Interface: Defines a comprehensive ImageGenerationPrompt interface covering scene, subjects, style, lighting, composition, camera settings, resolution, and more.
• JSON Schema Integration: Adheres to a published JSON schema (image-generation.schema.json), enabling validation and tooling support.
• SuperJSON Serialization: Uses SuperJSON to preserve advanced types and metadata when writing prompts to disk.
• One-step Prompt Export: Simple script to serialize your prompt and output a prompt.json file ready for consumption by AI studios or pipelines.

• Bun

1. **Edit **src/index.ts

   • Update the prompt object to reflect your desired scene and settings.
   • Adjust fields like scene, subjects, style, lighting, resolution, etc.

2. **Generate **prompt.json

   bun run src/index.ts # or `npm run start` if configured

   This writes prompt.json in the project root, formatted and serialized via SuperJSON.

3. Consume the Prompt

   Import or load prompt.json in your AI pipeline or tool:

   import prompt from "./prompt.json"; // Send `prompt` to your image-generation service

The JSON output conforms to image-generation.schema.json.

• Model Identifier: Specify model_identifier to target different AI backends.
• Seeds & Guidance: Control reproducibility with seed, guidance_scale, and num_inference_steps.
• Negative Prompts: Use negative_prompt to exclude unwanted artifacts.

MIT © xcaeser