> ## Documentation Index
> Fetch the complete documentation index at: https://docs.adcontextprotocol.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Generative Creative

> Generate canonical AdCP creative manifests from briefs, source assets, and selectable creative-agent capabilities.

Generative production is an operation, not a separate format category. The output still conforms to a canonical creative contract such as `image`, `video_hosted`, `native_in_feed`, or `sponsored_placement`.

<img src="https://mintlify.s3.us-west-1.amazonaws.com/agenticadvertisingorg/images/walkthrough/diagram-generative-tiers.png" alt="Three tiers of generative creative: static output, optimized asset combinations, and context-generated variants" style={{ width: '100%', borderRadius: '12px', marginBottom: '1.5rem' }} />

## Discover a generation capability

Call the creative agent's `get_adcp_capabilities` and inspect `creative.supported_formats[]`. A usable entry has `build` in `operations` and a canonical declaration compatible with the target product.

```json theme={null}
{
  "capability_id": "native_launch_generator",
  "operations": ["build", "preview"],
  "format": {
    "format_kind": "native_in_feed",
    "params": {
      "slots": [
        { "asset_group_id": "title", "asset_type": "text", "required": true },
        { "asset_group_id": "main_image", "asset_type": "image", "required": true },
        { "asset_group_id": "landing_page_url", "asset_type": "url", "required": true }
      ]
    }
  }
}
```

`list_creative_formats` is deprecated in 3.2. If you do not already know which creative agent to call, query the registry by canonical kind or exact publisher format option.

## Generate from a brief

```json theme={null}
{
  "message": "Create a concise native launch ad for Acme Outdoor's Trail Pro boot. Use an adventurous tone and a direct call to action.",
  "target_capability_id": "native_launch_generator",
  "brand": { "domain": "acmeoutdoor.example" },
  "quality": "draft",
  "include_preview": true
}
```

The agent returns a portable canonical manifest:

```json theme={null}
{
  "status": "completed",
  "creative_manifest": {
    "format_kind": "native_in_feed",
    "assets": {
      "title": { "asset_type": "text", "content": "Find your next summit" },
      "main_image": {
        "asset_type": "image",
        "url": "https://cdn.acmeoutdoor.example/trail-pro-native.jpg",
        "width": 1200,
        "height": 628
      },
      "landing_page_url": {
        "asset_type": "url",
        "url": "https://acmeoutdoor.example/trail-pro"
      }
    }
  }
}
```

The manifest does not contain `capability_id`. Before trafficking to a product that requires exact option routing, add the appropriate publisher or product `format_option_ref`.

## Transform existing creative

Provide an existing canonical manifest plus a target capability:

```json theme={null}
{
  "message": "Adapt this landscape image into a vertical short-video concept",
  "creative_manifest": {
    "format_kind": "image",
    "assets": {
      "image_main": {
        "asset_type": "image",
        "url": "https://cdn.acmeoutdoor.example/trail-pro-landscape.jpg",
        "width": 1200,
        "height": 628
      }
    }
  },
  "target_capability_id": "vertical_video_generator",
  "quality": "production"
}
```

For priced or configurable generation services, discover a `transformer_id` through `list_transformers`. Its `output_capability_ids[]` declares the allowed targets; typed generation knobs go in `config`.

## Multi-output generation

```json theme={null}
{
  "message": "Produce the approved launch concept for both display placements",
  "target_capability_ids": ["display_300x250", "display_728x90"],
  "brand": { "domain": "acmeoutdoor.example" },
  "quality": "production"
}
```

The response contains one canonical manifest per requested capability, in request order. Multi-output requests are atomic.

## Seller-side and impression-time generation

A seller may accept a brief, catalog, or other structured inputs and compose the final ad later. The product's canonical declaration expresses this through its slots and production parameters. The buyer submits a canonical manifest containing those inputs through `sync_creatives`; the seller/publisher runtime performs the impression-time composition.

That runtime is not discovered as a creative-agent renderer. If the seller also exposes preview or pre-build operations, it advertises them explicitly in its own `creative.supported_formats[]`.

## Quality and refinement

* `quality` controls build fidelity (`draft` or `production`).
* `preview_quality` controls visualization fidelity independently.
* Use `refine_from_build_variant_id` to refine a previously returned build leaf when the agent advertises refinement support.
* `max_variants` and `variant_axis` request alternatives; `keep_mode` is advisory and does not change billing for produced leaves.

## Failure handling

* `FORMAT_NOT_SUPPORTED`: refresh `get_adcp_capabilities` and choose an advertised capability.
* Field-attributed `config.*` error: correct the selected transformer's typed configuration.
* Target declaration mismatch: choose a capability whose full canonical envelope satisfies the product; matching only `format_kind` is insufficient.
* Missing seller option: use the target product's `format_options[]`, not an agent-local capability ID, for package and manifest routing.

## Related

* [`build_creative`](/dist/docs/3.2.0-beta.0/creative/task-reference/build_creative)
* [`list_transformers`](/dist/docs/3.2.0-beta.0/creative/task-reference/list_transformers)
* [Canonical formats](/dist/docs/3.2.0-beta.0/creative/canonical-formats)
* [Multi-agent orchestration](/dist/docs/3.2.0-beta.0/creative/multi-agent-orchestration)