scenario-formats

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Scenario Formats

Scenario 格式适配

Overview

概述

Format adaptation is derivation, not regeneration: re-prompting the concept per placement makes five cousins, not five formats of one approved master. The failure modes are picking the wrong operation (a resize where canvas needed inventing, a crop that beheads the subject) and deriving in the wrong order. The canvas tools' exact contracts live in

scenario-image-editing

; this skill is the decision ladder and the order of operations around them, with per-placement ratios, pixel targets, and safe zones in references/placement-specs.md. A video master climbs the same ladder: video resize versus generative reframe lives in

scenario-video-editing

, and far ratios recompose per

scenario-video

. Connection and the core loop: see the

scenario

skill. Lettering per format:

scenario-text-overlay

. 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.

格式适配是衍生而非重生：为每个展示位置重新提示生成概念，得到的是五张相似但不同的图，而非同一张获批母版的五种格式版本。常见的失败原因包括选择了错误的操作（比如需要补充画布内容时用了调整大小，或是裁剪把主体的头部切掉了）以及衍生操作的顺序错误。画布工具的具体功能约定见

scenario-image-editing

；本技能是围绕这些工具的决策阶梯与操作顺序，各展示位置的比例、像素要求和安全区见references/placement-specs.md。视频母版遵循同样的决策逻辑：视频调整大小与生成式重构的相关功能见

scenario-video-editing

，大比例差异的重排版则见

scenario-video

。连接方式与核心循环：参见

scenario

技能。各格式的文字叠加：参见

scenario-text-overlay

。如果你的可用技能中缺少此处提到的关联技能，请让用户安装（命令：

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

）；在无人值守模式下，可基于工具Schema继续操作并标记缺失的技能。

The decision ladder

决策阶梯

Per target format, take the first rung that fits. Each rung is a

model_run

on a model found with

search

(

target="models"

public=true

), never a dedicated MCP tool of its own:

The target needs	Operation
Same ratio, other pixels	Resize: exact, scales pixels, invents nothing
A tighter ratio, edges expendable	Resize with `fit: "cover"` : exact, center-crops the overflow; only when the subject clears the cut
More canvas, composition intact	Expand or uncrop: exact pixels, fills outward
Another ratio, recomposed around the subject	Generative reframe; the text-protecting variant when lettering or marks are on the plate
A far ratio or a new visual hierarchy	Recompose natively: a fresh run per `scenario-image` with the master as reference ( `scenario-consistency` ), composed for that ratio

The last rung applies more often than it looks: 16:9 key art seldom survives to 9:16 by any amount of outpainting, which is why the director siblings (

scenario-video-ads

) design each delivery ratio as its own composition.

针对每个目标格式，选择第一个符合条件的阶梯层级。每个层级都是通过

search

（

target="models"

，

public=true

）找到的模型上执行的

model_run

，而非独立的专用MCP工具：

目标需求	操作方式
比例相同，像素尺寸不同	Resize（调整大小）：精确缩放像素，不生成任何新内容
比例更紧凑，边缘内容可舍弃	使用 `fit: "cover"` 的Resize：精确调整，居中裁剪溢出部分；仅当主体不在裁剪区域内时使用
需要更大画布，构图保持不变	Expand（扩展）或Uncrop（反裁剪）：精确调整像素尺寸，向外填充内容
比例不同，需围绕主体重新构图	Generative reframe（生成式重构）；如果画布上有文字或标识，使用带文字保护的变体
比例差异极大，或需要新的视觉层级	原生重构图：通过 `scenario-image` 重新生成，以母版为参考（使用 `scenario-consistency` ），针对目标比例专门构图

最后一个层级的实际应用场景比看起来更多：16:9的主视觉无论怎么outpaint都很难适配成9:16的格式，这也是为什么导演类关联技能（

scenario-video-ads

）会为每个交付比例单独设计构图。

Order of operations

操作顺序

Approve one master first, at the largest clean size available, on a text-free plate (unattended, the task's named master or the brief's own description stands in for the approval).
Derive every format from that master, never from another derivative: derivative-of-derivative compounds re-rendering artifacts.
Reframe and expand before grading and grain: generative canvas work re-renders the image, so finishing passes applied first come back partly reinterpreted (
```
scenario-image-editing
```
holds the pipeline order). A video reframe also precedes any upscale: it renders at its own resolution tier whatever the input carries (1080p at most at authoring time), so an upscale ahead of it is discarded; upscale the reframed clip to delivery size.
Verify by measurement before finishing: reframe ratio enums are approximate (a 4:5 request came back 29:36 at authoring time), so check output dimensions, land exact with a resize, and batch-check that subjects survived with
```
asset_analyze
```
(
```
scenario-asset-analysis
```
).
Letter last: re-overlay lettering per format with
```
scenario-text-overlay
```
, sized to each final canvas, since type scaled by a resize turns soft and each placement has its own safe area. Keep critical content and text away from the edges platform UI covers: each placement's target and safe zone is in references/placement-specs.md as an authoring-time value, so confirm contractual specs with the user (unattended, task instructions win over the reference, and the delivery report states which was used).

首先确认一张母版，使用可用的最大干净尺寸，且画布上无文字（无人值守模式下，任务指定的母版或需求说明中的描述可作为确认依据）。
所有格式都从该母版衍生，绝不要从另一个衍生版本再衍生：二次衍生会叠加重渲染瑕疵。
重构和扩展要在调色和加颗粒之前进行：生成式画布操作会重新渲染图像，因此先做的后期处理会被部分重绘（流水线顺序见
```
scenario-image-editing
```
）。视频重构也要在任何超分辨率之前进行：无论输入分辨率多高，重构都会在自身的分辨率层级下渲染（制作阶段最高为1080p），因此之前做的超分辨率会被浪费；应该先重构片段，再超分辨率到交付尺寸。
后期处理前先通过测量验证：重构的比例枚举值是近似的（比如请求4:5的比例，制作阶段可能返回29:36），因此要检查输出尺寸，通过调整大小精确到目标值，并用
```
asset_analyze
```
批量检查主体是否完整保留（见
```
scenario-asset-analysis
```
）。
最后加文字：使用
```
scenario-text-overlay
```
为每个格式重新叠加文字，文字大小适配每个最终画布，因为通过调整大小缩放的文字会变模糊，且每个展示位置都有自己的安全区。要让关键内容和文字远离平台UI会覆盖的边缘区域：每个展示位置的目标尺寸和安全区作为制作阶段的数值记录在references/placement-specs.md中，因此要和用户确认约定的规格（无人值守模式下，任务说明优先级高于参考文档，交付报告中需说明使用的是哪份规格）。

Worked example: key art to story, feed, and thumbnail

实操示例：将主视觉适配为Stories、信息流和缩略图格式

Master: 16:9 text-free key art, approved.
1:1 feed: generative reframe with a prompt naming what must stay ("the knight centered, both banners visible"), then a resize pass to the exact deliverable pixels.
9:16 story: a far ratio, so recompose natively: one run per
```
scenario-image
```
with the master as reference and a 9:16 composition clause; the master holds palette and subject on-look.
Thumbnail: readability rules the crop, so reframe tight on the face or product, land exact with a resize, then
```
asset_display
```
the result and judge it small: thumbnails are seen at a tenth of their size.
Verify dimensions against the deliverable list and batch-check that subjects survived with one
```
asset_analyze
```
pass, then overlay the title card per format onto each final canvas and file the set in a collection.

母版：16:9无文字主视觉，已确认。
1:1信息流：使用生成式重构，在提示词中明确必须保留的内容（「骑士居中，两面旗帜都可见」），然后通过调整大小精确到交付像素尺寸。
9:16 Stories：比例差异极大，因此进行原生重构图：通过
```
scenario-image
```
生成一次，以母版为参考并加入9:16构图要求；母版用于保持调色板和主体外观一致。
缩略图：可读性是裁剪的首要原则，因此重构时要紧贴人脸或产品，通过调整大小精确到目标尺寸，然后用
```
asset_display
```
展示结果并缩小判断效果：因为缩略图通常以实际尺寸的十分之一大小被查看。
对照交付清单验证尺寸，用一次
```
asset_analyze
```
批量检查主体是否完整，然后为每个格式在最终画布上叠加标题卡，最后将整组素材归档到集合中。

Common mistakes

常见错误

Re-prompting per format: five generations of one prompt are five different images; derive from the master.
Stretching into a new ratio with a resize (
```
fit: "stretch"
```
): it distorts. A ratio change is
```
fit: "cover"
```
when the edges are expendable, else reframe, expand, or recomposition.
Grading and grain before reframing: the order is reshape, then grade, then texture.
Deriving from the lettered master: generative operations re-render type; keep a text-free plate and re-overlay per format.
Trusting a ratio enum: measure the output and resize to exact.
Center-cropping toward 9:16 because it is cheap: it is also how subjects lose their heads; the ladder exists to be climbed.
Skipping
```
dry_run
```
on reframes: generative canvas work is the expensive step in the chain, tens of times an effect's price (
```
scenario-image-editing
```
).

为每个格式重新提示生成：同一个提示词生成五次会得到五张不同的图；应该从母版衍生。
用调整大小的
```
fit: "stretch"
```
模式拉伸适配新比例：会导致变形。比例调整时，如果边缘内容可舍弃，用
```
fit: "cover"
```
，否则使用重构、扩展或重构图。
在重构之前调色和加颗粒：正确顺序是先调整形状，再调色，最后加纹理。
从带文字的母版衍生：生成式操作会重绘文字；要保留无文字的母版，为每个格式重新叠加文字。
轻信比例枚举值：要测量输出尺寸，通过调整大小精确到目标值。
为了省事用居中裁剪适配9:16：这也是导致主体被切掉头部的原因；决策阶梯就是用来按步骤选择合适操作的。
重构时跳过
```
dry_run
```
：生成式画布操作是整个流程中成本最高的步骤，价格是普通效果的数十倍（见
```
scenario-image-editing
```
）。