Direct your shot. Get the prompt.
Build a professional video prompt step by step with a live preview, or paste one you already have and the Prompt doctor fixes what's wrong. Ready for Veo, Sora, Runway, Kling and Manus.
Open the prompt studio · Check a prompt with the Prompt doctor · Read the blog
Frequently asked questions
Why only one camera move per clip?
Video models do one clear move over 5–8 seconds well. Mixed signals, like two locations, two times of day or a montage, lead to morphing, or the model picks one at random.
How do I keep my product looking right in text to video?
Describe it precisely: material, color, size and finish, e.g. "a white ceramic mug with a matte glaze". Keep one subject, one place and one camera move, and leave text and logos out of the frame. Add those in your editor, where they stay sharp and on-brand.
Which video tool should I pick?
Use Veo or Sora when you want sound or spoken lines in the clip. Use Runway for quick, camera-led shots, Kling when you animate an approved still, and Manus when you want an agent to plan, shoot and edit the video, voiceover and music included. The studio formats the same idea for each one, so you can try them side by side.
How do I use a prompt in Manus?
Pick "For Manus" in the studio, or Manus in the Prompt doctor. You get a brief written for the Manus agent: one clip, the exact sound, what to leave out, and a request to see the storyboard first. On manus.im, start a new task, paste the brief (to animate a photo, attach it to the same message), approve the storyboard, then refine in the chat or the Video Editor and download. Video needs a paid Manus plan and uses credits per second.
Do I need an account?
No. The studio and the Prompt doctor both run in your browser. Your last setup is remembered on this device, and the Share button gives you a link to any setup.
What does the Prompt doctor check?
It checks your prompt against the 10 golden rules: one subject, one place, one time of day, one camera move, a clear action, lens and light, length and format, text in the frame, and words that video models ignore, like "8k" or "masterpiece". It also adds the checks that matter for the tool you picked.
How is my prompt scored?
Every prompt starts at 100. Each real problem, such as two locations or a chain of actions, takes points off; smaller suggestions take off less. Above 85 is ready to use. The suggested prompt shows its own score so you can see the difference.
Does the doctor change what my video is about?
No. It keeps your subject, action and setting, cuts what confuses the model, and fills the gaps with sensible camera, light and format choices. Anything it can't guess is highlighted for you to fill in.
Is the prompt I paste sent anywhere?
No. The check runs entirely in your browser, nothing is uploaded. Your last prompt is remembered on this device only, so you can come back to it.