Generate walkthrough videos from Stitch projects using Remotion with smooth transitions, zooming, and text overlays

Stitch to Remotion Walkthrough Videos You are a video production specialist focused on creating engaging walkthrough videos from app designs. You combine Stitch's screen retrieval capabilities with Remotion's programmatic video generation to produce smooth, professional presentations. Overview This skill enables you to create walkthrough videos that showcase app screens with professional transitions, zoom effects, and contextual text overlays. The workflow retrieves screens from Stitch projects and orchestrates them into a Remotion video composition. Prerequisites Required: Access to the Stitch MCP Server Access to the Remotion MCP Server (or Remotion CLI) Node.js and npm installed A Stitch project with designed screens Recommended: Familiarity with Remotion's video capabilities Understanding of React components (Remotion uses React) Retrieval and Networking Step 1: Discover Available MCP Servers Run list tools to identify available MCP servers and their prefixes: Stitch MCP : Look for stitch: or mcp stitch: prefix Remotion MCP : Look for remotion: or mcp remotion: prefix Step 2: Retrieve Stitch Project Information 1. Project lookup (if Project ID is not provided): Call [stitch prefix]:list projects with filter: "view=owned" Identify target project by title (e.g., "Calculator App") Extract Project ID from name field (e.g., projects/13534454087919359824 ) 2. Screen retrieval : Call [stitch prefix]:list screens with the project ID (numeric only) Review screen titles to identify all screens for the walkthrough Extract Screen IDs from each screen's name field 3. Screen metadata fetch : For each screen: Call [stitch prefix]:get screen with projectId and screenId Retrieve: screenshot.downloadUrl — Visual asset for the video htmlCode.downloadUrl — Optional: for extracting text/content width , height — Screen dimensions for proper scaling Screen title and description for text overlays 4. Asset download : Use web fetch or Bash with curl to download screenshots Save to a staging directory: assets/screens/{screen name}.png Organize assets in order of the intended walkthrough flow Step 3: Set Up Remotion Project 1. Check for existing Remotion project : Look for remotion.config.ts or package.json with Remotion dependencies If exists, use the existing project structure 2. Create new Remotion project (if needed): Choose TypeScript template Set up in a dedicated video/ directory 3. Install dependencies : Video Composition Strategy Architecture Create a modular Remotion composition with these components: 1. ScreenSlide.tsx — Individual screen display component Props: imageSrc , title , description , width , height Features: Zoom in animation, fade transitions Duration: Configurable (default 3 5 seconds per screen) 2. WalkthroughComposition.tsx — Main video composition Sequences multiple ScreenSlide components Handles transitions between screens Adds text overlays and annotations 3. config.ts — Video configuration Frame rate (default: 30 fps) Video dimensions (match Stitch screen dimensions or scale appropriately) Total duration calculation Transition Effects Use Remotion's @remotion/transitions for professional effects: Fade : Smooth cross fade between screens Slide : Directional slide transitions Zoom : Zoom in/out effects for emphasis Use spring() animation for smooth zoom Apply to important UI elements Text Overlays Add contextual information using Remotion's text rendering: 1. Screen titles : Display at the top or bottom of each frame 2. Feature callouts : Highlight specific UI elements with animated pointers 3. Descriptions : Fade in descriptive text for each screen 4. Progress indicator : Show current screen position in walkthrough Execution Steps Step 1: Gather Screen Assets 1. Identify target Stitch project 2. List all screens in the project 3. Download screenshots for each screen 4. Organize in order of walkthrough flow 5. Create a manifest file ( screens.json ): Step 2: Generate Remotion Components Create the video components following Remotion best practices: 1. Create ScreenSlide.tsx : Use useCurrentFrame() and spring() for animations Implement zoom and fade effects Add text overlays with proper timing 2. Create WalkthroughComposition.tsx : Import screen manifest Sequence screens with <Sequence components Apply transitions between screens Calculate proper timing and offsets 3. Update remotion.config.ts : Set composition ID Configure video dimensions Set frame rate and duration Reference Resources: Use resources/screen slide template.tsx as starting point Follow resources/composition checklist.md for completeness Review examples in examples/ directory Step 3: Preview and Refine 1. Start Remotion Studio : Opens browser based preview Allows real time editing and refinement 2. Adjust timing : Ensure each screen has appropriate display duration Verify transitions are smooth Check text overlay timing 3. Fine tune animations : Adjust spring configurations for zoom effects Modify easing functions for transitions Ensure text is readable at all times Step 4: Render Video 1. Render using Remotion CLI : 2. Alternative: Use Remotion MCP (if available): Call [remotion prefix]:render with composition details Specify output format (MP4, WebM, etc.) 3. Optimization options : Set quality level ( quality ) Configure codec ( codec h264 or h265 ) Enable parallel rendering ( concurrency ) Advanced Features Interactive Hotspots Highlight clickable elements or important features: Voiceover Integration Add narration to the walkthrough: 1. Generate voiceover script from screen descriptions 2. Use text to speech or record audio 3. Import audio into Remotion with <Audio component 4. Sync screen timing with voiceover pacing Dynamic Text Extraction Extract text from Stitch HTML code for automatic annotations: 1. Download htmlCode.downloadUrl for each screen 2. Parse HTML to extract key text elements (headings, buttons, labels) 3. Generate automatic callouts for important UI elements 4. Add to composition as timed text overlays File Structure Integration with Remotion Skills Remotion maintains its own Agent Skills that define best practices. Review these for advanced techniques: Repository : https://github.com/remotion dev/remotion/tree/main/packages/skills Installation : npx skills add remotion dev/skills Key Remotion skills to leverage: Animation timing and easing Composition architecture patterns Performance optimization Audio synchronization Common Patterns Pattern 1: Simple Slide Show Basic walkthrough with fade transitions: 3 5 seconds per screen Cross fade transitions Bottom text overlay with screen title Progress bar at top Pattern 2: Feature Highlight Focus on specific UI elements: Zoom into specific regions Animated circles/arrows pointing to features Slow motion emphasis on key interactions Side by side before/after comparisons Pattern 3: User Flow Show step by step user journey: Sequential screen flow with directional slides Numbered steps overlay Highlight user actions (clicks, taps) Connect screens with animated paths Troubleshooting Issue Solution Blurry screenshots Ensure downloaded images are at full resolution; check screenshot.downloadUrl quality settings Misaligned text Verify screen dimensions match composition size; adjust text positioning based on actual screen size Choppy animations Increase frame rate to 60fps; use proper spring configurations with appropriate damping Remotion build fails Check Node version compatibility; ensure all dependencies are installed; review Remotion docs Timing feels off Adjust duration per screen in manifest; preview in Remotion Studio; test with actual users Best Practices 1. Maintain aspect ratio : Use actual Stitch screen dimensions or scale proportionally 2. Consistent timing : Keep screen display duration consistent unless emphasizing specific screens 3. Readable text : Ensure sufficient contrast; use appropriate font sizes; avoid cluttered overlays 4. Smooth transitions : Use spring animations for natural motion; avoid jarring cuts 5. Preview thoroughly : Always preview in Remotion Studio before final render 6. Optimize assets : Compress images appropriately; use efficient formats (PNG for UI, JPG for photos) Example Usage User prompt: Agent workflow: 1. List Stitch projects → Find "Calculator App" → Extract project ID 2. List screens in project → Identify all screens (Home, History, Settings) 3. Download screenshots for each screen → Save to assets/screens/ 4. Create screens.json manifest with screen metadata 5. Generate Remotion components ( ScreenSlide.tsx , WalkthroughComposition.tsx ) 6. Preview in Remotion Studio → Refine timing and transitions 7. Render final video → calculator walkthrough.mp4 8. Report completion with video preview link Tips for Success Start simple : Begin with basic fade transitions before adding complex animations Follow Remotion patterns : Leverage Remotion's official skills and documentation Use manifest files : Keep screen data organized in JSON for easy updates Preview frequently : Use Remotion Studio to catch issues early Consider accessibility : Add captions; ensure text is readable; use clear visuals Optimize for platform : Match video dimensions to target platform (YouTube, social media, etc.) References Stitch Documentation : https://stitch.withgoogle.com/docs/ Remotion Documentation : https://www.remotion.dev/docs/ Remotion Skills : https://www.remotion.dev/docs/ai/skills Remotion MCP : https://www.remotion.dev/docs/ai/mcp Remotion Transitions : https://www.remotion.dev/docs/transitions