@maxhealth.tech/prefab / renderer / PrefabApp

Interface: PrefabApp

Defined in: renderer/app.ts:55

Properties

callTool

callTool: (name, args?) => Promise<unknown>;

Defined in: renderer/app.ts:57

Call an MCP tool through the transport.

Parameters

Parameter	Type
name	string
args?	Record<string, unknown>

Returns

Promise<unknown>

---

sendMessage

sendMessage: (message) => Promise<void>;

Defined in: renderer/app.ts:59

Send a message through the transport.

Parameters

Parameter	Type
message	string

Returns

Promise<void>

---

onToolInput

onToolInput: (handler) => void;

Defined in: renderer/app.ts:61

Register a handler for tool input from the host.

Parameters

Parameter	Type
handler	ToolInputHandler

Returns

void

---

onToolResult

onToolResult: (handler) => void;

Defined in: renderer/app.ts:63

Register a handler for tool results from the host.

Parameters

Parameter	Type
handler	ToolResultHandler

Returns

void

---

onToolCancelled

onToolCancelled: (handler) => void;

Defined in: renderer/app.ts:65

Register a handler for tool cancellation.

Parameters

Parameter	Type
handler	VoidHandler

Returns

void

---

onToolInputPartial

onToolInputPartial: (handler) => void;

Defined in: renderer/app.ts:67

Register a handler for partial/streaming tool input.

Parameters

Parameter	Type
handler	ToolInputHandler

Returns

void

---

onHostContextChanged

onHostContextChanged: (handler) => void;

Defined in: renderer/app.ts:69

Register a handler for host context changes (full params from host-context-changed).

Parameters

Parameter	Type
handler	(context) => void

Returns

void

---

render

render: (target, ...components) => MountHandle;

Defined in: renderer/app.ts:71

Render a component tree into a DOM element.

Parameters

Parameter	Type
target	string | HTMLElement
...components	ComponentNode[]

Returns

MountHandle

---

mount

mount: (target, data, opts?) => MountedApp;

Defined in: renderer/app.ts:73

Mount full wire-format data (legacy API).

Parameters

Parameter	Type
target	string | HTMLElement
data	PrefabWireData
opts?	MountOptions

Returns

MountedApp

---

requestMode

requestMode: (mode) => void;

Defined in: renderer/app.ts:75

Request a display mode change.

Parameters

Parameter	Type
mode	DisplayMode

Returns

void

---

openLink

openLink: (url, target?) => void;

Defined in: renderer/app.ts:77

Request the host to open a URL.

Parameters

Parameter	Type
url	string
target?	string

Returns

void

---

updateContext

updateContext: (context) => void;

Defined in: renderer/app.ts:79

Send context updates.

Parameters

Parameter	Type
context	Record<string, unknown>

Returns

void

---

setupAutoResize

setupAutoResize: (target) => () => void;

Defined in: renderer/app.ts:85

Observe an element and notify the host whenever it resizes. Mirrors the ext-apps SDK autoResize: true behaviour. Returns a teardown function that disconnects the observer.

Parameters

Parameter	Type
target	string | HTMLElement

Returns

() => void

---

notifyPreferredSize

notifyPreferredSize: (layout) => void;

Defined in: renderer/app.ts:90

Notify the host of declarative layout/size preferences from the wire format. Called automatically when mounting wire data with a layout field.

Parameters

Parameter	Type
layout	{ preferredHeight?: number; minHeight?: number; maxHeight?: number; }
layout.preferredHeight?	number
layout.minHeight?	number
layout.maxHeight?	number

Returns

void

---

host

host: HostContext;

Defined in: renderer/app.ts:92

Host context from initialization.

---

capabilities

capabilities: HostCapabilities;

Defined in: renderer/app.ts:94

Host capabilities.

---

theme

theme: HostTheme | undefined;

Defined in: renderer/app.ts:96

Host theme (if provided).

---

transport

transport: McpTransport;

Defined in: renderer/app.ts:98

The underlying MCP transport.

---

destroy

destroy: () => void;

Defined in: renderer/app.ts:100

Destroy the app and clean up.

Returns

void