Agent skill

runway-core-workflow-b

Runway core workflow b — AI video generation and creative AI platform. Use when working with Runway for video generation, image editing, or creative AI. Trigger with phrases like "runway core workflow b", "runway-core-workflow-b", "AI video generation".

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Install this agent skill to your Project

npx add-skill https://github.com/jeremylongshore/claude-code-plugins-plus-skills/tree/main/plugins/saas-packs/runway-pack/skills/runway-core-workflow-b

SKILL.md

Runway Core Workflow B

Overview

Image-to-video and video-to-video generation: animate still images and transform existing videos.

Prerequisites

  • Completed runway-core-workflow-a

Instructions

Step 1: Image-to-Video

python
from runwayml import RunwayML
client = RunwayML()

# Animate a still image
task = client.image_to_video.create(
    model='gen3a_turbo',
    prompt_image='https://your-cdn.com/landscape.jpg',  # URL to source image
    prompt_text='Camera slowly pans right revealing mountains, gentle wind in trees',
    duration=5,
)
result = task.wait_for_task_output()
print(f"Animated video: {result.output[0]}")

Step 2: Image-to-Video with Data URI

python
import base64

# Load local image as data URI
with open('photo.jpg', 'rb') as f:
    image_data = base64.b64encode(f.read()).decode()
    data_uri = f"data:image/jpeg;base64,{image_data}"

task = client.image_to_video.create(
    model='gen3a_turbo',
    prompt_image=data_uri,
    prompt_text='Subtle motion, gentle camera push in, atmospheric lighting',
    duration=5,
)

Step 3: Video-to-Video (Style Transfer)

python
# Transform an existing video with a new style
task = client.video_to_video.create(
    model='gen3a_turbo',
    prompt_video='https://your-cdn.com/input-video.mp4',
    prompt_text='Transform to watercolor painting style, soft colors, artistic brushstrokes',
)
result = task.wait_for_task_output()
print(f"Styled video: {result.output[0]}")

Step 4: Image Specifications

text
Supported formats: JPEG, PNG, WebP
Supported resolutions:
  - Gen-3 Alpha Turbo: 1280x768 or 768x1280
  - Input images are automatically resized
Max file size: 16MB (URL), varies for data URI

Output

  • Still images animated with motion prompts
  • Local images encoded as data URIs
  • Videos restyled with text prompts
  • Proper image format handling

Error Handling

Error Cause Solution
400 Invalid image Unsupported format Use JPEG, PNG, or WebP
413 Image too large File exceeds limit Resize to under 16MB
Poor animation quality Prompt doesn't describe motion Add camera/motion keywords
Style transfer too subtle Weak prompt Be more specific about target style

Resources

Next Steps

Error handling: runway-common-errors

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