Storyboard

Storyboard

From user materials only, produce:

1. Narration per shot — Chinese and English (both required unless user opts out)
2. Video prompt per shot — ready for i2v / t2v

Do not invent product facts, prices, logos, or claims not in the materials. Style and length are agent-chosen from the content (no fixed genre or duration).

Inputs

Any mix of stills, clips, text brief, and constraints. Optional: a delivery file path.

If goal/audience is ambiguous, state one short assumption and proceed. Ask only when a missing fact would make the storyboard unusable.

Delivery

Treat a path as the output file when:

1. User says write to / save as / put in + path
2. Skill request is paired with one main .md / .txt document
3. Path is an empty or draft file clearly opened for this output

Rules:

• Always read the target file first if it exists. Non-empty body = text material; then replace with the full storyboard (keep useful facts in ## Materials / Spine).
• One doc + images → write to the doc; images are materials only.
• Explicit output path + separate brief → write only to the output path.
• Several docs, unclear target → prefer the path next to the skill invoke; if still ambiguous, ask once.
• User names a directory only → create storyboard.md there.

Workflow

1. Detect delivery target (file vs chat)
2. Inventory materials (read delivery file if present)
3. Infer Visual Style (once for the whole piece)
4. Design story spine (hook → develop → payoff / CTA)
5. Break into shots (one clear idea each; duration free) — Shot 01 is the eyeball grab (see Shot 01)
6. Write bilingual VO + video prompt per shot
7. Write Assembly (after Spine), then Shots
8. Consistency pass; deliver in required format

Visual Style (once)

Medium, mood, color/light, camera language, motion energy, aspect (default 16:9). Keep consistent across prompts unless a deliberate style shift is story.

Spine patterns

• Product → desire/problem → reveal → benefit → close
• Character → setup → turn → resolution
• Trailer → hooks and escalating beats
• Explain → claim → show → reinforce
• Attention-scarce / fragmented viewing → grab in Shot 01 → develop → payoff / CTA

Spine may note what Shot 01 uses to stop the scroll; that hook is not a summary of the whole piece.

Shot rules

• One idea per shot; prefer a visible cause of motion
• Reference still present → i2v (motion relative to that frame)
• No frame → t2v (full self-contained scene)
• Respect user aspect; default 16:9
• No invented logo text, legal claims, or competitor names

Shot 01 (hook — grab attention)

Attention is fragmented: Shot 01 must catch the eye. It is an opening line that stops the scroll—not a summary of the video, and not necessarily the piece’s main thesis.

• Prefer a sharp cold open: tension, curiosity, contrast, surprise, or a vivid concrete moment
• VO + picture work as a hook; soft mood builds, empty atmosphere, or early detail dumps fail here
• The main argument / product reveal can land in later shots; Shot 01 only needs to pull the viewer in
• If materials already give a hook line, keep it and amplify — do not invent facts

Narration (bilingual default)

• Same idea in both languages (natural spoken, not word-for-word).
• Length vs duration: Chinese ~3–4 chars/sec; English ~2–3 words/sec. Tighten the side that overruns.
• Sync on edit: if either VO changes, update the other VO and related fields (Duration, Visual, Camera, Video prompt) in the same edit.
• User gives one language verbatim → keep it; write a natural equivalent for the other.
• User asks for only one language → omit the other field.

Video prompts

Self-contained for a generic model. Include: subject + action in time order, camera (frame + move), environment, light/color, motion intensity, continuity anchors.

• i2v: start with Image-to-video from provided still: … then motion (+ keep composition unless changing)
• t2v: full scene + Visual Style cues
• Prefer concrete verbs; avoid named living artists / unlicensed IP not in materials
• Optional: Avoid: flicker, morphing faces, extra limbs, watermark, text overlay
• English prompt body unless user requires Chinese

Output format (required)

Section order is fixed: Materials → Visual Style → Spine → Assembly → Shots.

# Storyboard — [working title]

## Materials
- [asset or note → role]

## Visual Style
- Medium:
- Mood:
- Color / light:
- Camera:
- Motion energy:
- Aspect: [e.g. 16:9]

## Spine
[1–4 sentences: arc + rough total runtime]

## Assembly
[shot order, total runtime, TTS/BGM/stitch notes if obvious]

## Shots

### Shot 01 — [short title — cold open / hook]
- **Duration:** ~Xs
- **Source:** [file / t2v / i2v from …]
- **Visual:** [composition]
- **Camera:** [framing + move]
- **Chinese:** [spoken Chinese, or (no VO)]
- **English:** [spoken English, or (no VO)]
- **Video prompt:**

[full prompt — English preferred]

- **Avoid (optional):** …

### Shot 02 — …
…

Quality bar

• File path given → full markdown saved there (UTF-8); not chat-only
• Section order: Spine → Assembly → Shots; every shot has Chinese + English + Video prompt (or user opt-out)
• VO languages sense-aligned; durations match speak length
• Shot 01 grabs attention as a cold open (not a thesis summary; no slow-burn open)
• Facts trace to materials; style coherent; i2v points at the right still
• No video/image generation APIs unless user separately asks
• No invented output path when user gave none → chat delivery only

CLI

Copy-paste commands: cli/storyboard.md