Generate images using Volcengine visual generation API.

CRITICAL INSTRUCTIONS FOR AI AGENTS:

• For image size, ONLY use the 'size' parameter (e.g., size="16:9"). DO NOT pass a 'ratio' or 'width'/'height' parameter.

• If the user provides a custom Endpoint ID (starts with 'ep-'), you MUST pass it into the 'model' parameter.

Capabilities:

1. Text-to-Image: Provide 'prompt' and 'size'.

2. Image-to-Image: Provide 'prompt' AND 'image_urls' (list containing 1 image string).

Create a video generation task using Volcengine API.

CRITICAL INSTRUCTIONS FOR AI AGENTS:

• This tool ONLY submits the task. It returns a Task ID. You MUST subsequently call get_video_task_result in a loop (wait 5-10s between calls) to retrieve the actual video URL.

• Use 'ratio' for video proportions (e.g., ratio="16:9"). DO NOT use 'size' or 'width'/'height'.

• If user provides an Endpoint ID ('ep-...'), pass it to the 'model' parameter.

Capabilities:

1. Text-to-Video: Provide 'prompt' and 'ratio'.

2. Image-to-Video: Provide 'image_urls' array + optional 'prompt'.

3. Multi-Modal (Seedance 2.0): Mix 'image_urls' (up to 9), 'video_urls' (up to 3), and 'audio_urls' (up to 3).

Query the status of a video generation task using the Task ID returned by generate_video.

CRITICAL INSTRUCTIONS FOR AI AGENTS:

• Video generation takes time (often 1-3 minutes).

• If the returned status is "ordered" or "running", DO NOT tell the user it failed. Ask the user to wait, and call this tool again after 10-15 seconds.

• Once the status is "succeeded", the response will contain the download URL.