video-shotcraft: Cinematic Product Video Builder

What it does

A self-contained production library that turns your web/desktop product into a cinematic promo video rendered with Remotion.

• 152 shot recipe cards, each with demo source code and an animated sample in an online gallery — treat them as a reusable motion vocabulary.
• A validated "Ink Press" template: a fully renderable Remotion project where you swap screenshots, copy and branding.
• Three explicit modes: use the template as-is, let the agent create freely end-to-end, or co-create with checkpoints (brief → visual direction → shot mapping → storyboard).
• Real-page capture pipeline: spins up your dev server, screenshots full pages at 2x, cuts out elements, and emits a layout.json coordinate table to drive 2.5D camera work.
• Sound design & beat sync: 149 commercially licensed SFX plus BGM, librosa-based BPM/phase and kick/snare/hihat detection, timelines written in beatF(n), and post-render verification within 3 frames. Always delivers a with-BGM and SFX-only version.
• Built-in QA: per-shot remotion still checks, ffmpeg frame extraction reviews, and a clean-context subagent doing an independent final review before delivery.

Who it's for

• Developers and indie makers who want a demo/launch video straight from their real landing page.
• Product teams that need the video to inherit the product's own design tokens (type scale, colors, spacing) instead of a generic "promo skin".
• Frontend engineers already comfortable with Remotion and code-driven video.
• Motion designers who just need one polished shot (deck fly-in, orbiting close-up, etc.).

Examples

1. Template route: "Use the Ink Press template to make a promo for my SaaS" → template mode locks in; swap screenshots, copy and logo, then npx remotion render src/index.ts AiflPromo out/promo.mp4.
2. Autonomous route: "Read this repo and produce a 30s promo, don't ask me anything" → the agent runs brief → styleframe → shot mapping → storyboard → render without pausing.
3. Single shot: "Give me an 8s clip where my dashboard cards fly in using deck-deal-flyin" → it reads the full card plus the exact demo TSX so tuned easing and timing are preserved.
4. Beat-synced edit: supply a track and it analyzes real BPM/phase and drum hits first, pins transitions to beats, then re-extracts audio from the render to verify cut accuracy.

Install the skill I found on Claude Skill Mart.
Copy the SKILL.m folder from the GitHub repo Vincentwei1021/video-shotcraft into my ~/.claude/skills/video-shotcraft/.
When it's done, tell me in one line what this skill can do.