/yao-image

name: yao-image
description: Image expert. ALWAYS invoke this skill when you need to read, analyze, describe, or generate images. Use for screenshots, photos, charts, diagrams, AI-generated images, or any visual content.

Image Tools

Use these tools when you encounter images you cannot read natively, or when you need to generate new images.

image_read

Send an image to a vision-capable model and get a text description.

Local file (most common):

tai tool image_read --image_path /path/to/image.png --prompt "Describe this image"

URL:

tai tool image_read --image_path https://example.com/photo.jpg --prompt "What is shown?"

With a specific vision provider:

tai tool image_read --image_path /path/to/image.png --prompt "Describe" --provider llm.my-openai:gpt-4o

| Parameter | Type | Required | Description | | ---------- | ------- | -------- | --------------------------------------------------------------- | | image_path | string | yes | Image file path or URL | | prompt | string | no | Analysis instruction (default: describe in detail) | | max_size | integer | no | Max dimension in pixels for longest edge (default: 1080) | | provider | string | no | Vision provider connector ID. If omitted, uses default vision model |

Images are automatically resized (preserving aspect ratio) before sending to the vision model. Supported formats: PNG, JPEG, GIF, WebP.

image_generate

Generate a new image from a text prompt (text-to-image). For editing an existing image, use `image_edit` instead.

Basic usage (always specify output):

tai tool image_generate --prompt "A serene mountain landscape at sunset" --output landscape.png

With specific provider, model and size:

tai tool image_generate --prompt "A futuristic city skyline" --provider llm.my-openai --model gpt-image-1 --dimensions 1792x1024 --output output/city.png

Transparent background (for icons, stickers, product shots):

tai tool image_generate --prompt "A cute fox mascot" --background transparent --output_format png --output fox.png

WebP output with quality control:

tai tool image_generate --prompt "A landscape painting" --output_format webp --quality high --output painting.webp

| Parameter | Type | Required | Description | | --------- | ------ | -------- | ----------------------------------------------------------------- | | prompt | string | yes | Text description of the image to generate | | output | string | yes | Output file path for the generated image | | provider | string | no | Provider connector ID (use `image_providers` to list). Auto-selects if omitted | | dimensions | string | no | Image dimensions (default: 1024x1024). Common: 1024x1024, 1024x1792, 1792x1024 | | model | string | no | Model name to use. Overrides the provider's default model | | background | string | no | `transparent`, `opaque`, or `auto`. Use `transparent` for PNG/WebP with no background | | output_format | string | no | `png`, `jpeg`, or `webp`. Default: png | | output_compression | integer | no | Compression level 0-100 for jpeg/webp. Higher = better quality. Default: 100 | | quality | string | no | `low`, `medium`, `high`, or `auto`. Higher takes longer. Default: auto | | extra | JSON | no | Provider-specific parameters as a JSON object (e.g. `--extra '{"moderation":"low"}'`) |

If `output` is omitted, the image is saved to a default path in the working directory.

image_edit

Edit or transform an existing image based on a text prompt (image-to-image). Use for style transfer, background replacement, adding/removing elements, or any modification that requires a reference image.

Basic usage:

tai tool image_edit --image_path /path/to/photo.png --prompt "Change the background to a beach scene" --output edited.png

With URL image:

tai tool image_edit --image_path https://example.com/photo.jpg --prompt "Make it look like a watercolor painting" --output watercolor.png

With specific provider and model:

tai tool image_edit --image_path /path/to/original.png --prompt "Remove the person in the foreground" --provider llm.my-openai --model gpt-image-1 --dimensions 1024x1024 --output result.png

With mask (edit only the masked region):

tai tool image_edit --image_path /path/to/photo.png --mask /path/to/mask.png --prompt "Replace with a garden" --output edited.png

Transparent background edit:

tai tool image_edit --image_path /path/to/product.png --prompt "Remove background" --background transparent --output_format png --output cutout.png

| Parameter | Type | Required | Description | | ---------- | ------ | -------- | ----------------------------------------------------------------- | | image_path | string | yes | Reference image file path or URL | | prompt | string | yes | Text description of the desired edit or transformation | | output | string | yes | Output file path for the edited image | | provider | string | no | Provider connector ID (use `image_providers` with `capability=image_editing`). Auto-selects if omitted | | dimensions | string | no | Output dimensions (default: 1024x1024). Common: 1024x1024, 1024x1792, 1792x1024 | | model | string | no | Model name to use. Overrides the provider's default model | | mask | string | no | Mask image path/URL. Transparent areas in the mask define the editable region