Materials CLI

Use this skill when the user wants to render JSON schemas to images (PNG/JPG), validate render-data schemas, or generate schemas from natural-language prompts and then render them.

Commands

• render — Render a JSON schema file to an image.
• generate — Use AI (OpenAI) to generate a schema from a prompt, then render it.
• validate — Validate a JSON schema against the declare-render data schema.

When to use

• User asks to "render a schema to image", "turn JSON into a picture", or "draw from schema".
• User wants to "generate an image from a description" or "create a schema from a prompt" and render it.
• User wants to "validate" a JSON file against the render data schema.

Usage

Run via Node (from the project or after npm install -g materials-cli):

materials render <schema-path> [options]
materials generate "<prompt>" [options]
materials validate <schema-path> [options]

Render

• materials render schema.json -o output.png
• Options: -s, --schema <path>, -o, --output <path> (default ./output.png), -f, --format <png|jpg>, -w, --width, -h, --height, --output-schema <path>, -i, --interactive

Generate (AI)

• materials generate "A red circle with text Hello" -o out.png
• Options: -o, --output, -f, --format, -w, --width, -h, --height, --output-schema, --model, --api-key, --base-url, -i, --interactive
• Uses OPENAI_API_KEY (and optionally OPENAI_MODEL, OPENAI_BASE_URL) if not passed via flags.

Validate

• materials validate schema.json
• Options: -s, --schema <path>, -i, --interactive

CLI help

Usage: materials <command> [options]

Commands:
  render <schema>     Render a JSON schema file to an image
  generate <prompt>   Use AI to generate a schema, then render
  validate <schema>   Validate a schema against the render data schema

Examples:
  materials render schema.json -o output.png
  materials generate "A red circle with text Hello"
  materials validate schema.json
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Schema format

The JSON schema follows the declare-render format: root has id, width, height, and layers. Layer types include text, image, container, shape, etc. Use materials validate <file> to check a schema before rendering.

這個 Skill 的文件質量還不錯，描述清晰、結構合理，看起來能做渲染圖片、生成 schema、驗證資料這幾件事。但缺點是它只有使用說明，沒有實際可執行的程式碼或示例，無法判斷實際好不好用、穩不穩定。質量水平中等偏下，推薦先找其他更完整的替代品試試。