scenario-veo

Original：🇺🇸 English

Translated

Use when generating or extending video with Google Veo models on Scenario via MCP: text-to-video, image-to-video from a first frame, first and last frame transitions, reference-to-video (R2V) with asset or style reference images, native audio with dialogue, sound effects, and ambience, negative prompts, seeded reruns, extending a 16:9 clip, or choosing a quality, fast, or lite tier. Keywords: Veo 3.1, Veo 3.1 Fast, Veo 3.1 Lite, Extend Video, Google, T2V, I2V, V2V, 720p, 1080p.

14installs

Sourcescenario-labs/skills

Added on2026-09-26

NPX Install

npx skill4agent add scenario-labs/skills scenario-veo

SKILL.md Content

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Scenario Veo Video

Overview

Veo, Google's video family on Scenario, ships four members at authoring time: Veo 3.1 (full quality, reference images with a style switch), Veo 3.1 Fast (same modes, quicker, no switch), Veo 3.1 Lite (frame anchors only, cheapest), and Veo 3.1 Extend Video (continues a clip). Discover them with

search

and treat

model_schema_get

as the contract: members agree on parameter names and disagree on which inputs exist at all.

Connection and the core loop: see the

scenario

skill in this repo; model-agnostic video work: the

scenario-video

skill. If a sibling skill named here is missing from your available skills, ask the user to install it (

npx skills add scenario-labs/skills --skill <name>

); unattended, proceed from tool schemas and flag the gap.

Quick reference

Mode follows from the inputs (names from the live schema):

Mode	Inputs	Behavior
Text	`prompt`	`aspectRatio` 16:9 or 9:16
First frame	`image` (+ `prompt` )	opens on that frame; a mismatched image may be cropped
Transition	`image` + `lastFrameImage`	bridges the stills; prompt one continuous move
Reference	`referenceImages` (1 to 3)	subject or style consistency; `duration` locked to 8
Extend	`video` (Extend member)	continues the clip; 16:9 source, short side 720p or 1080p

image

and

referenceImages

are mutually exclusive.

referenceImagesType

exists on full Veo 3.1 alone and reads the whole array one way:

ASSET

(default) carries subjects, objects, and scenes;

STYLE

carries palette, lighting, and texture. Fast takes references without the switch; Lite takes none. Shared across the three generators at authoring time:

negativePrompt

,

resolution

(

720p

,

1080p

),

duration

(4, 6, or 8 seconds), and

seed

.

generateAudio

is required on every member and moves the price. The Extend member takes only

prompt

,

video

,

generateAudio

, and

seed

: no duration, resolution, or ratio controls. At authoring time price spanned roughly five times between Lite and full 3.1 for one image-to-video job, and one extension cost more than a fresh full generation, so aim for the shot in one 8 second pass and

dry_run

the same payload on two members before a batch.

The soundstage is in the prompt

With

generateAudio: true

, Veo renders synchronized dialogue, effects, and ambience, and it takes audio direction literally. Put spoken lines in quotation marks, prefix effects with

SFX:

and room tone with

Ambient noise:

. A prompt with no audio direction still gets a soundtrack, just not the one you meant. When a clip needs silence for later scoring, set

generateAudio: false

rather than prompting for quiet.

Prompt one continuous shot

Write present-tense prose ordered as cinematography, subject, action, context, style: camera and shot scale first, one primary arc, roughly 90 to 250 words. For several beats in one clip, timestamp lines work (

[00:00-00:02] Medium shot...

), spans fitting inside the chosen duration.

Worked example: a dialogue shot from character references

```
search
```
with
```
target="models"
```
,
```
query="veo"
```
,
```
public=true
```
. Prefer the newest non-deprecated hits, e.g.
```
model_veo3-1
```
and
```
model_veo3-1-fast
```
(live hits at authoring time: re-discover each session).
```
model_schema_get
```
on the chosen id: confirm which reference inputs exist before writing the payload.
```
upload_asset
```
two character stills (see the
```
scenario
```
skill) to get asset ids.

model_run

with that

model_id

,

dry_run=true