a5c-ai Video Prompt Engineering Skill
Purpose
Create optimized prompts for AI video generation platforms that produce cinematic, production-quality footage. These prompts must communicate action, camera movement, timing, and style in a format that translates across different AI platforms.
Universal Prompt Structure
[SCENE SETUP] + [CHARACTER/SUBJECT] + [ACTION SEQUENCE] +
[CAMERA MOVEMENT] + [LIGHTING/ATMOSPHERE] + [STYLE/AESTHETIC]
Component Details
| Component | Content | Example |
|---|---|---|
| Scene Setup | Location, time, environment | "A rain-soaked Tokyo street at night" |
| Subject | Who/what appears | "A woman in a red coat" |
| Action | What happens (sequential) | "walks forward, stops, turns to look back" |
| Camera | Movement and framing | "slow tracking shot, eye level" |
| Lighting | Light sources, mood | "neon signs reflecting on wet pavement" |
| Style | Visual aesthetic | "cinematic, blade runner aesthetic" |
Platform-Specific Optimization
Sora (OpenAI)
Strengths:
- Complex scenes
- Multiple subjects
- Consistent physics
- Long duration
Prompt Style:
Natural language, paragraph format.
Describe the scene as if telling a story.
Include subtle details about atmosphere.
Mention specific camera movements by name.
Example:
"A close-up tracking shot follows a single snowflake as it falls
through the air, passing snow-covered pine branches and eventually
landing on a red mitten. The camera holds on the crystalline
structure of the snowflake for a beat before it begins to melt.
Soft, diffused winter light. Shallow depth of field with gentle
bokeh in the background."
Runway Gen-3
Strengths:
- Motion control
- Style transfer
- Consistent aesthetics
- Subject coherence
Prompt Style:
Structured, detailed prompts.
Specify motion types explicitly.
Reference camera movements precisely.
Include duration indicators.
Example:
"Cinematic shot, slow motion. A detective in a trench coat walks
through a crowded train station. Camera dollies backward maintaining
medium shot. People blur past in the foreground. Harsh overhead
lighting creates deep shadows. 1940s noir aesthetic. 4 seconds."
Pika
Strengths:
- Quick generation
- Image-to-video
- Style consistency
- Character animation
Prompt Style:
Concise, focused prompts.
One primary action per prompt.
Strong style keywords.
Clear motion direction.
Example:
"Close-up of woman's face, wind blowing through hair,
looking off camera left, soft golden hour lighting,
cinematic film grain, subtle movement"
Kling
Strengths:
- Longer duration
- Complex action
- Multiple subjects
- Realistic motion
Prompt Style:
Detailed action sequences.
Step-by-step motion description.
Clear spatial relationships.
Timing indications.
Example:
"A chef in a professional kitchen. Wide shot. He tosses
vegetables in a wok, flames rise dramatically (2 sec),
plates the dish with precise movements (3 sec),
wipes his brow and smiles at camera (2 sec).
Warm kitchen lighting, steam rising, professional quality."
Camera Movement Vocabulary
Static Shots
locked off, tripod, stable, still camera
Movement Types
- PAN: horizontal pivot (pan left, pan right)
- TILT: vertical pivot (tilt up, tilt down)
- DOLLY: camera moves (dolly in, dolly out, dolly alongside)
- TRACKING: follows subject (tracking shot, follow shot)
- CRANE: vertical lift (crane up, crane down)
- STEADICAM: smooth handheld (steadicam walk, floating camera)
- HANDHELD: naturalistic shake
- ZOOM: lens change (slow zoom, crash zoom)
- ORBIT: circles subject (360 orbit, arc shot)
Speed Modifiers
slow, gentle, smooth, quick, whip, crash, gradual
Action Description
Effective Action Verbs
walks → strides, shuffles, marches, stumbles
runs → sprints, jogs, dashes, bolts
looks → glances, stares, gazes, peers
turns → spins, pivots, rotates, wheels around
picks up → grabs, snatches, lifts, retrieves
Timing Language
slowly, gradually, suddenly, immediately,
after a beat, in one motion, over X seconds
Scene Prompt Template
## Scene [Number]: [Title]
### Setup
- **Location:** [Specific environment description]
- **Time:** [Time of day, lighting conditions]
- **Atmosphere:** [Weather, mood, ambience]
### Subject
- **Character(s):** [Who appears, wardrobe, positioning]
- **Key Props:** [Important objects in scene]
### Action Sequence
1. [First action with timing]
2. [Second action with timing]
3. [Third action with timing]
### Camera
- **Shot Type:** [Size and angle]
- **Movement:** [Specific movement description]
- **Speed:** [Movement speed]
### Technical
- **Duration:** [Total seconds]
- **Aspect Ratio:** [16:9, 2.39:1, etc.]
- **Style:** [Visual aesthetic reference]
### Platform Prompts
**Universal/Sora:**
[Paragraph-form natural language prompt]
**Runway:**
[Structured prompt with style keywords]
**Pika:**
[Concise action-focused prompt]
### Negative Prompt
[What to avoid: jittery motion, morphing, artifacts, etc.]
Style Keywords
Cinematic Quality
cinematic, film grain, anamorphic, 35mm film,
professional quality, movie scene, theatrical
Lighting
golden hour, blue hour, harsh shadows, soft light,
rim lighting, volumetric, neon glow, practical lighting
Motion
smooth motion, fluid movement, realistic physics,
natural motion, consistent speed, seamless
Atmosphere
atmospheric, moody, dramatic, serene, tense,
energetic, contemplative, mysterious
Common Issues & Solutions
| Issue | Solution |
|---|---|
| Subject morphing | Describe subject consistently throughout |
| Jittery motion | Add "smooth" and "fluid" keywords |
| Wrong timing | Specify durations explicitly |
| Inconsistent style | Use strong style anchors |
| Background issues | Describe environment in detail |
| Physics problems | Describe motion realistically |
Quality Checklist
- Scene environment clearly described
- Subject/character specified in detail
- Action sequence is logical and timed
- Camera movement explicitly stated
- Duration specified
- Style/aesthetic defined
- Platform-optimized version created
- Negative prompts included where needed