In short:
ak-motion-videobuilds release videos, promo clips and explainers at 1920×1080, 30 fps with HyperFrames: cuts land on the beat, text appears exactly when the voice says it, with Vietnamese karaoke captions, sound effects and custom music. The voice is an AI voice or your own recording. It only produces files and does not post to social media.
Disclosure: I maintain AgentKit and have an affiliate relationship with it: the AgentKit link in this post is an affiliate link; buying through it gets you 30% off.
Summary
Use it when you need a launch video, an explainer or a 9:16 vertical cut for Reels from release notes, product docs, or a recording of your own voice. You do not need it when you want AI-generated footage from text (use ak-video) or a React or Remotion project (use ak-remotion).
flowchart LR
A["Brief or release notes"] --> B["ak-motion-video"]
R["Your voice recording"] -.->|"--from-recording"| B
B --> C["1080p MP4 + social-compressed copy"]
C --> D["1:1, 9:16 or short versions, after you approve"]
C --> E["You post it yourself"]
A -.->|"Need AI-generated footage"| F["ak-video"]Four concepts to know:
| Concept | Question | Example |
|---|---|---|
| Style | What does the video look like, and which scenes borrow from another style? | Base cinematic-product-launch; only the diagram scenes borrow the diagram drawing of blueprint-engineering |
| Synced to beat and words | When does each cut and each number land? | The first feature scene enters on the music drop; the number "40%" appears exactly as the voice says "faster" |
| Beat map | What does the video tell, in what order, and how is each scene shot? | Arc release_tour, opening hook surprising_stat, one line per scene with framing and camera move |
| Done when | What proves the video passes? | ffprobe reports 1920×1080, 30 fps; loudness about −14 LUFS, peak no higher than −1 dBFS |
It shows you the beat map once before spending money on audio, and renders no other aspect ratio before you approve the main cut.
Sample prompt for a release video:
/ak-motion-video Make a video introducing release <version> of <app name>.
Sources: <path to release notes> and CHANGELOG.
Style: glass-keynote. About 150 seconds long.
English voice-over, Vietnamese captions. End with a light outro.
No signature.| Flag | What it is for | Since ak |
|---|---|---|
--poor | One session does everything, spending the fewest tokens | 2.19.0 |
--from-recording | The voice is your recording, you appear in a corner like a webcam | 3.0.0-beta.35 |
Below is the detailed version: the run flow, 6 situations with prompts, each flag explained (when to use it, when you do not need it, what you get, which flags it combines with), the change history by ak release, and common pitfalls. The detailed version and the interactive page are for subscribers. Your agent can also search them through the portal's MCP.
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This guide is for subscribers
Once your account has access, the full piece, the interactive visual and the agent call all open.
- Sign in or create a modernEngineer accountReading access belongs to your account email.
- Choose a plan on the pricing page1, 3 or 12 months, paid by VietQR bank transfer. Access opens about a minute after the money arrives.
- Or redeem a Facebook subscriber codePeople supporting the page on Facebook get an activation code by message each month.
Already a subscriber? Sign in to read.
Use this piece in your agent
Get an API keyCopy the text below and paste it into Claude Code, Codex or whichever agent you use. The agent reads the piece and checks it against the repo you have open.
Read "ak-motion-video: beat-synced motion graphic videos with voice-over" on modernEngineer and apply it to this repo.
1. Call the content_get tool of the modernengineer MCP server with locale "en", slug "ak-motion-video". If the modernengineer MCP server is not connected, stop and walk me through connecting it from https://modernengineer.dev/en/mcp.
2. Summarize the main steps of the piece and point out which apply to this repo.
3. Propose concrete changes and ask me before editing any file.Connect MCP in Claude Code (once)
claude mcp add --transport http modernengineer \
https://api.modernengineer.dev/mcp \
--header "Authorization: Bearer <API key>"Reading the full piece over MCP needs an API key from a subscriber account or one that bought this guide. Without access, the agent only gets the opening.
- Version
- v1.0.0
- Updated
- 22/10/2026
- Licence
- All rights reserved
- Slug
- ak-motion-video
