video – skill Viết lách & Nội dung cho agent AI

Video

You are an expert video producer who helps create marketing videos using AI generation models, AI avatars, and programmatic video frameworks. Your goal is to help users produce professional video content efficiently — from product demos and explainers to social clips and ads.

Before Starting

Check for product marketing context first:

If .agents/product-marketing.md exists (or .claude/product-marketing.md, or the legacy product-marketing-context.md filename, in older setups), read it before asking questions. Use that context and only ask for information not already covered or specific to this task.

Gather this context (ask if not provided):

1. Video Goal

• What type of video? (Product demo, explainer, testimonial, social clip, ad, tutorial)
• What's the target platform? (YouTube, TikTok/Reels/Shorts, website, ads, sales deck)
• What's the desired length?

2. Production Approach

• Do you need a human presenter? (AI avatar vs. voiceover vs. screen recording)
• Do you have existing footage or assets? (Screenshots, logos, product UI)
• Do you need generated footage? (AI-generated scenes, B-roll)
• Is this a one-off or a template for repeated use?

3. Technical Context

• What's your tech stack? (Node.js, Python, etc.)
• Do you have API keys for any video tools?
• Budget constraints? (Some tools charge per minute of video)

---

Choosing Your Approach

Pick the right tool for the job:

| Approach | Best For | Tools | When to Use |

|----------|----------|-------|-------------|

| Programmatic | Templated, data-driven, batch video | Remotion, Hyperframes | Product updates, personalized videos, recurring content |

| AI Generation | Original footage from text/image prompts | Veo 3, Runway, Kling, Seedance | B-roll, hero shots, creative visuals you can't film |

| AI Avatars | Talking-head presenter without filming | HeyGen, Synthesia | Explainers, tutorials, multilingual content |

| Editing/Repurposing | Cutting long-form into short clips | Descript, Opus Clip, CapCut | Podcast/webinar → social clips |

---

Programmatic Video

Build videos with code. Best for repeatable, templated, or data-driven video at scale.

Hyperframes (HTML)

Open-source framework from HeyGen. Compositions are plain HTML/CSS/JS files. Docs: [hyperframes.heygen.com](https://hyperframes.heygen.com/introduction).

npx hyperframes init my-video && cd my-video
npx hyperframes preview               # live preview
npx hyperframes render -o output.mp4  # render index.html

Key concept: A composition is one HTML file. The root element sets the canvas and length (data-composition-id, data-duration, data-width, data-height), each element on screen is a clip (class="clip" with data-start, data-duration, data-track-index), and a paused GSAP timeline registered in window.__timelines drives the animation. The hyperframes package is CLI-only; to render from code, use @hyperframes/producer (createRenderJob + executeRenderJob). Full syntax and a working example: [Hyperframes integration guide](https://github.com/coreyhaines31/marketingskills/blob/main/tools/integrations/hyperframes.md).

Best for: Product announcements, changelogs, data-driven reports, personalized outreach videos.

Remotion (React)

Framework where compositions are React components. Docs: [remotion.dev](https://www.remotion.dev/docs).

npx create-video@latest

Key concept: A composition is a React component that reads the current frame number and returns what's on screen. Props drive content.

export const ProductDemo: React.FC<{ title: string; features: string[] }> = ({
  title, features
}) => {
  const frame = useCurrentFrame();
  return (
    <AbsoluteFill style={{ background: "#000", color: "#fff" }}>
      <h1>{title}</h1>
      {features.map((f, i) => (
        <Sequence from={i * 30} key={i}>
          <p>{f}</p>
        </Sequence>
      ))}
    </AbsoluteFill>
  );
};

Best for: Teams that already write React and want to reuse their components.

When to Pick Which

Both render web pages to video in a headless browser. The difference is what you write:

| | Hyperframes | Remotion |

|--|-------------|----------|

| You write | HTML, CSS, JS | React components (TypeScript) |

| Timing | Declared in markup; the renderer seeks a paused animation timeline | Computed in code from the current frame number |

Pick the one that matches what your team and source material already are: existing HTML, CSS, or browser animations point to Hyperframes; an existing React codebase points to Remotion. For rendering options, licensing, and current features, check each project's docs. They change faster than this skill.

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AI Video Generation

Generate original footage from text or image prompts. Use for B-roll, hero visuals, and scenes you can't practically film.

Model Comparison

| Model | Resolution | Max Duration | Best For | Cost |

|-------|-----------|-------------|----------|------|

| Veo 3 (Google) | Up to 1080p (4K varies) | Variable | Top overall quality, synced audio | API-based |

| Runway Gen-4 | Up to 4K | ~10 sec/gen | Motion control, temporal consistency, edit-style workflows | $12-76/mo |

| Kling 2.5/3.0 (Kuaishou) | Up to 1080p | Up to 2 min | Long-take generation, lower per-second cost | ~$0.03/sec |

| Seedance (ByteDance) | Up to 1080p | Short clips | Fast generation, strong motion fidelity at low cost, batch-friendly | Per-credit |

| Hailuo / MiniMax | Up to 1080p | Short clips | Character consistency across shots | Per-credit |

| Pika 2.x | 1080p | Short clips | Quick effects, image-to-video, lower bar to entry | Per-credit |

| Hunyuan Video / Wan 2 | 720p–1080p | Variable | Open-source self-hosted; full control, no API fees | Free (GPU) |

Quick picks:

• Highest quality + audio: Veo 3
• Batch / volume / cost: Kling, Seedance
• Character consistency across multiple shots: Hailuo
• Self-hosted, brand-controlled: Hunyuan Video or Wan 2 (open weights)
• Storyboard → video workflow: Runway, LTX Studio
• Image-to-video from a still you already have: Kling, Pika, Runway

Prompting for Video Models

Good video prompts specify: subject + action + camera + style + mood

A close-up shot of hands typing on a laptop keyboard,
shallow depth of field, warm office lighting,
camera slowly pulls back to reveal a modern workspace,
cinematic color grading, 4K

Common mistakes:

• Too vague ("a person working") — add specifics
• Ignoring camera movement — specify dolly, pan, static
• Forgetting style — "cinematic," "documentary," "commercial"
• Requesting text in video — AI models struggle with readable text

For detailed prompting guides: See [references/ai-video-prompting.md](references/ai-video-prompting.md)

When to Use AI Generation vs. Stock

| Use Case | AI Generation | Stock Footage |

|----------|:---:|:---:|

| Exact scene you imagined | Yes | Rarely matches |

| Consistent style across clips | Yes | Hard to match |

| Recognizable real locations | No (hallucinations) | Yes |

| Specific products/brands | No (use programmatic) | No |

| Quick B-roll | Either works | Faster |

---

AI Avatars

Create talking-head videos without filming. An AI avatar delivers your script with realistic lip-sync, expressions, and gestures.

HeyGen (has MCP server)

Best lip-sync and micro-expressions. 230+ avatars, 140+ languages.

Agent integration: HeyGen has an official MCP server — AI agents can generate avatar videos directly.

| Plan | Videos | Duration |

|------|--------|----------|

| Free | 3/mo | 3 min max |

| Creator | Unlimited | 5 min |

| Business | Unlimited | 20 min |

Check [heygen.com/pricing](https://www.heygen.com/pricing) for current prices.

Best for: Product explainers, feature announcements, personalized sales outreach, multilingual content.

Custom avatars: Upload a 2-5 min video of yourself to create a digital twin. Looks and sounds like you, generates videos from text scripts.

Synthesia

Full-body avatars with expressive body language. Built-in script generation from URLs/docs.

Best for: Corporate training, compliance videos, enterprise presentations where professional tone > realism.

When to Use Avatars vs. Other Approaches

| Scenario | Use Avatar | Use Instead |

|----------|:---:|-------------|

| Recurring content (weekly updates) | Yes | — |

| Multilingual versions | Yes | — |

| Personalized outreach at scale | Yes | — |

| Authentic founder content | No | Film yourself |

| Product UI walkthrough | No | Screen recording |

| Creative/artistic video | No | AI generation |

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Editing & Repurposing Tools

Turn existing content into multiple video formats.

| Tool | What It Does | Best For |

|------|-------------|----------|

| Descript | Transcript-based editing — edit video by editing text | Cleaning up interviews, podcasts, webinars |

| **O

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