사용 방법
- 설치 명령을 복사하고 자신의 에이전트 환경에 설치하기 전에 소스 패키지를 확인하세요.
- 필요한 도구, 인증 정보, 지원 환경은 원본 문서에서 확인하세요.
- 입력과 원하는 산출물을 설명하고 출처와 결과를 대조하세요.
npx skills add https://github.com/101-skills/superpowers --skill explainer-video-guide시작 전 확인
- 설치에는 모델 구독, API 한도, 파일 접근 권한이 포함되지 않습니다.
- 별점 수와 설치 수는 활동 지표이며 독립적인 품질·보안 검증이 아닙니다.
원본 Skill 문서
원본 저장소의 제목, 예시, 코드, 표, 링크, 이미지를 유지해 표시합니다.
Install the belt CLI skill: npx skills add belt-sh/cliExplainer Video Guide
Create explainer videos from script to final cut via inference.sh CLI.
Quick Start
Requires inference.sh CLI (belt). Install instructionsbash
belt login
# Generate a scene for an explainer
belt app run google/veo-3-1-fast --input '{
"prompt": "Clean motion graphics style animation, abstract data flowing between connected nodes, blue and white color scheme, professional corporate aesthetic, smooth transitions"
}'Script Formulas
Problem-Agitate-Solve (PAS) — 60 seconds
| Section | Duration | Content | Word Count |
|---|---|---|---|
| Problem | 10s | State the pain point the viewer has | ~25 words |
| Agitate | 10s | Show why it's worse than they think | ~25 words |
| Solution | 15s | Introduce your product/idea | ~35 words |
| How It Works | 20s | Show 3 key steps or features | ~50 words |
| CTA | 5s | One clear next action | ~12 words |
Before-After-Bridge (BAB) — 90 seconds
| Section | Duration | Content |
|---|---|---|
| Before | 15s | Show the current frustrating state |
| After | 15s | Show the ideal outcome |
| Bridge | 40s | Explain how your product gets them there |
| Social Proof | 10s | Quick stat or testimonial |
| CTA | 10s | Clear next step |
Feature Spotlight — 30 seconds (social)
| Section | Duration | Content |
|---|---|---|
| Hook | 3s | Surprising fact or question |
| Feature | 15s | Show one feature solving one problem |
| Result | 7s | The outcome/benefit |
| CTA | 5s | Try it / Learn more |
Pacing Rules
| Content Type | Words Per Minute | Notes |
|---|---|---|
| Standard narration | 150 wpm | Conversational pace |
| Complex/technical | 120 wpm | Allow processing time |
| Energetic/social | 170 wpm | Faster for short-form |
| Children's content | 100 wpm | Clear and slow |
Key rule: 1 scene per key message. Don't pack multiple ideas into one visual.
Scene Duration Guidelines
- Establishing shot: 3-5 seconds
- Feature demonstration: 5-8 seconds
- Text/stat on screen: 3-4 seconds (must be readable)
- Transition: 0.5-1 second
- CTA screen: 3-5 seconds
Visual Production
Scene Types
bash
# Product in context
belt app run google/veo-3-1-fast --input '{
"prompt": "Clean product demonstration video, hands typing on a laptop showing a dashboard interface, bright modern office, soft natural lighting, professional"
}'
# Abstract concept visualization
belt app run bytedance/seedance-2-0 --input '{
"prompt": "Abstract motion graphics, colorful data streams connecting floating geometric shapes, smooth fluid animation, dark background with glowing elements, tech aesthetic",
"generate_audio": true
}'
# Lifestyle/outcome shot
belt app run google/veo-3-1-fast --input '{
"prompt": "Happy person relaxing on couch with laptop, smiling at screen, bright airy living room, warm afternoon light, satisfied customer feeling, lifestyle commercial style"
}'
# Before/after comparison
belt app run falai/flux-dev-lora --input '{
"prompt": "Split screen comparison, left side cluttered messy desk with papers and stress, right side clean organized minimalist workspace, dramatic difference, clean design"
}'Image-to-Video for Scenes
bash
# Generate a still frame first
belt app run falai/flux-dev-lora --input '{
"prompt": "Professional workspace with glowing holographic interface, futuristic but clean, blue accent lighting"
}'
# Animate it
belt app run falai/wan-2-5-i2v --input '{
"prompt": "Gentle camera push in, holographic elements subtly floating and rotating, soft ambient light shifts",
"image": "path/to/workspace-still.png"
}'Voiceover Production
Script Writing Tips
- Short sentences. Max 15 words per sentence.
- Active voice. "You can track your data" not "Your data can be tracked."
- Conversational tone. Read it aloud — if it sounds stiff, rewrite.
- One idea per sentence. One sentence per visual beat.
Generating Voiceover
bash
# Professional narration with Dia TTS
belt app run falai/dia-tts --input '{
"prompt": "[S1] Tired of spending hours on reports that nobody reads? There is a better way. Meet DataFlow. It turns your raw data into visual stories... in seconds. Just connect your source, pick a template, and share. Try DataFlow free today."
}'Pacing Control in TTS
| Technique | Effect | Example |
|---|---|---|
Period . | Medium pause | "This changes everything. Here's how." |
Ellipsis ... | Long pause (dramatic) | "And the result... was incredible." |
Comma , | Short pause | "Fast, simple, powerful." |
Exclamation ! | Emphasis/energy | "Start building today!" |
Question ? | Rising intonation | "What if there was a better way?" |
Music & Audio
Background Music Guidelines
- Volume: 20-30% under narration (duck 6-12dB when voice plays)
- Style: match the brand tone (corporate = ambient electronic, startup = upbeat indie)
- Structure: intro swell (first 3s) -> subtle loop under narration -> swell at CTA
- No vocals: instrumental only under narration
bash
# Generate background music
belt app run <music-gen-app> --input '{
"prompt": "upbeat corporate background music, modern electronic, 90 BPM, positive and professional, no vocals, suitable for product explainer video"
}'Assembly Pipeline
Full Production Workflow
bash
# 1. Generate voiceover
belt app run falai/dia-tts --input '{
"prompt": "[S1] Your script here..."
}'
# 2. Generate scene visuals (in parallel)
belt app run google/veo-3-1-fast --input '{"prompt": "scene 1 description"}' --no-wait
belt app run google/veo-3-1-fast --input '{"prompt": "scene 2 description"}' --no-wait
belt app run google/veo-3-1-fast --input '{"prompt": "scene 3 description"}' --no-wait
# 3. Merge scenes into sequence
belt app run infsh/media-merger --input '{
"media": ["scene1.mp4", "scene2.mp4", "scene3.mp4"]
}'
# 4. Add voiceover to video
belt app run infsh/video-audio-merger --input '{
"video": "merged-scenes.mp4",
"audio": "voiceover.mp3"
}'
# 5. Add captions
belt app run infsh/caption-videos --input '{
"video": "final-with-audio.mp4",
"caption_file": "captions.srt"
}'Video Length by Format
| Format | Length | Platform |
|---|---|---|
| Social teaser | 15-30s | TikTok, Instagram Reels, YouTube Shorts |
| Product demo | 60-90s | Website, landing page |
| Feature explainer | 90-120s | YouTube, email |
| Tutorial/walkthrough | 2-5min | YouTube, help center |
| Investor pitch video | 2-3min | Pitch deck supplement |
Transition Types
| Transition | When to Use | Effect |
|---|---|---|
| Cut | Default between related scenes | Clean, professional |
| Dissolve/Crossfade | Time passing, mood shift | Soft, contemplative |
| Wipe | New topic or section | Clear separation |
| Zoom/Push | Drilling into detail | Focus attention |
| Match cut | Visual similarity between scenes | Clever, memorable |
Common Mistakes
| Mistake | Problem | Fix |
|---|---|---|
| Script too wordy | Voiceover rushed, viewer overwhelmed | Cut to 150 wpm max |
| No hook in first 3s | Viewers leave immediately | Start with the problem or surprising stat |
| Visuals lag narration | Confusing disconnect | Visuals should match or slightly precede words |
| Background music too loud | Can't hear narration | Duck music 6-12dB under voice |
| No captions | 85% of social video watched silent | Always add captions |
| Too many ideas | Viewer retains nothing | One core message per video |
Related Skills
bash
npx skills add inference-sh/skills@ai-video-generation
npx skills add inference-sh/skills@video-prompting-guide
npx skills add inference-sh/skills@text-to-speech
npx skills add inference-sh/skills@prompt-engineeringBrowse all apps: belt app list
