blitzreels-motion-graphics_skill

Overview

This skill enables creation and editing of motion-graphics compositions via the BlitzReels Playground API. It provides shell scripts to list presets, create/update/delete compositions, manipulate elements, and export final video assets. Use JSON composition specs to assemble text, shapes, charts, images, code blocks, lottie, and animated scenes.

How this skill works

The skill wraps the Playground API with purpose-built shell scripts that perform CRUD operations on compositions and elements. You author a composition JSON describing canvas size, fps, duration, elements, and animations, then call create/update/export commands to iterate. Exports are handled via a separate endpoint and may be gated by an environment flag for expensive operations.

When to use it

• Design animated title cards, lower thirds, and intros with fine-grained keyframe control
• Generate data-driven animated charts and visualizations from JSON data
• Compose complex scenes mixing text, images, video clips, and Lottie animations
• Batch-create or programmatically update motion graphics via CI or scripts
• Export high-resolution video renders for marketing, social, or broadcast

Best practices

• Start from a preset to learn layout and animation patterns before building custom specs
• Keep keyframes minimal and use easing or spring presets to avoid jitter
• Group repeated elements with group to manage timing as a unit
• Version JSON specs and iterate with small changes to reduce debugging surface
• Set BLITZREELS_API_KEY and BLITZREELS_API_BASE_URL in your environment and use BLITZREELS_ALLOW_EXPENSIVE=1 only when ready to export

Example use cases

• Create a 10-second animated title card with typewriter text and fade-in logo
• Produce an animated bar chart sequence for a quarterly report exportable to 1080p
• Automate creation of social clips by feeding headlines and images into a composition template
• Add caption overlays and update caption styles on an existing timeline project
• Build a developer-focused clip with syntax-highlighted code reveal using the code element