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

> ## Agent Instructions
> Use Stable documentation by default. Honor an explicit Beta request or a URL under /docs/beta/. If the requested version conflicts with the installed CLI package or API origin, clarify the target before writing integration code.
> Pages under /docs/beta/ document Beta; other product pages document Stable. Keep the CLI package, commands, API origin, and credentials within the selected version. State the documentation version in your answer.
> For MCP search, always pass version: Stable or version: Beta. Unfiltered search mixes both versions. For filesystem reads, keep Beta queries under /beta/ and exclude /beta/ from Stable queries; discover paths before reading them.
> The public docs base is https://photon.codes/docs. Convert MCP page paths to public URLs under that base, preserving /beta/ when present. Read https://photon.codes/docs/skill.md for version selection and https://photon.codes/docs/llms.txt for the version indexes.

# customizedMiniApp

```typescript
customizedMiniApp(input: CustomizedMiniAppInput): ContentBuilder
```

Construct a `customized-mini-app` content value. iMessage-only, remote-only.

The layout is what recipients see in the bubble. `teamId` and
`extensionBundleId` identify the iMessage extension that receives `url` when
the recipient taps the card; the server constructs the matching
`MSMessageExtensionBalloonPlugin` plugin id from these values. `appStoreId`
is optional and only points recipients without the extension at its App
Store entry. `live` is optional; when omitted, the remote server keeps the
static layout preview visible.

`space.send(customizedMiniApp(...))` is the canonical form.

`CustomizedMiniApp` is intentionally not a member of the universal `Content`
union — the `as unknown as Content` cast keeps the builder shape compatible
with the framework's `ContentBuilder.build(): Promise<Content>` signature.

## Parameters

<ResponseField name={"input"} type={"CustomizedMiniAppInput"} typeHref={"/reference/stable/spectrum-ts/providers-imessage/types/CustomizedMiniAppInput"} required />

## Returns

<code>[ContentBuilder](/docs/reference/stable/spectrum-ts/index/interfaces/ContentBuilder)</code>


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