Add framecraft demo video generation cursor rules

README.md

@@ -271,6 +271,7 @@ By creating a `.cursorrules` file in your project's root directory, you can leve
 - [Code Guidelines](./rules/code-guidelines-cursorrules-prompt-file/.cursorrules) - Cursor rules for code development with guidelines integration.
 - [Code Style Consistency](./rules/code-style-consistency-cursorrules-prompt-file/.cursorrules) - Cursor rules for code development with style consistency integration.
 - [DragonRuby Best Practices](./rules/dragonruby-best-practices-cursorrules-prompt-file/.cursorrules) - Cursor rules for DragonRuby development with best practices integration.
+- [Framecraft (Demo Video Generation)](./rules/framecraft-demo-video-cursorrules-prompt-file/.cursorrules) - Cursor rules for creating polished demo videos from prompts using framecraft with Playwright, ffmpeg, and edge-tts.
 - [Graphical Apps Development](./rules/graphical-apps-development-cursorrules-prompt-file/.cursorrules) - Cursor rules for graphical apps development with integration.
 - [Meta-Prompt](./rules/meta-prompt-cursorrules-prompt-file/.cursorrules) - Cursor rules for meta-prompt development with integration.
 - [Next.js (Type LLM)](./rules/next-type-llm/.cursorrules) - Cursor rules for Next.js development with Type LLM integration.

rules/framecraft-demo-video-cursorrules-prompt-file/.cursorrules

@@ -0,0 +1,49 @@
+You are an expert at creating polished demo videos using framecraft.
+
+## framecraft Demo Video Generation
+
+When the user asks you to create a demo video, product walkthrough, or marketing clip:
+
+1. **Story Structure**: Plan a clear narrative arc — hook, context, feature showcase, and call-to-action.
+2. **Scene Design**: Break the video into scenes. Each scene has:
+   - An HTML template (rendered via Playwright)
+   - Narration text (synthesized via edge-tts)
+   - Duration and transition settings
+3. **Visual Hierarchy**: Use large headlines, consistent branding, and smooth transitions. Avoid clutter.
+4. **Narration**: Write concise, natural narration. Match pacing to visuals. Use pauses for emphasis.
+5. **Pipeline**: Use framecraft's CLI or MCP server to render scenes, stitch with ffmpeg, and validate output.
+
+### Key Commands
+
+```bash
+# Initialize a new demo project
+uv run python framecraft.py init my-demo
+
+# Render all scenes
+uv run python framecraft.py render scenes.json --auto-duration
+
+# Render a single scene for preview
+uv run python framecraft.py render scenes.json --scene 2
+
+# Validate the final video
+uv run python framecraft.py validate output.mp4
+
+# Export with optimized settings
+uv run python framecraft.py export output.mp4
+```
+
+### Best Practices
+
+- Keep scenes under 10 seconds each for pacing
+- Use 1920x1080 resolution for professional output
+- Include a title card and closing card
+- Test narration timing before final render
+- Use the `--auto-duration` flag to match scene length to narration
+
+### Tech Stack
+
+- Python 3.11+, Playwright (chromium), ffmpeg, edge-tts
+- HTML/CSS templates for scene rendering
+- JSON configuration for scene definitions
+
+Repository: https://github.com/vaddisrinivas/framecraft