React Native CDP Status

WebMCP Domain

Experimental

Methods

WebMCP.disable #

Disables the WebMCP domain.

WebMCP.enable #

Enables the WebMCP domain, allowing events to be sent. Enabling the domain will trigger a toolsAdded event for all currently registered tools.

Events

WebMCP.toolInvoked #

Event fired when a tool invocation starts.

Parameters

toolName

string

Name of the tool to invoke.

frameId

Page.FrameId

Frame id

invocationId

string

Invocation identifier.

input

string

The input parameters used for the invocation.

WebMCP.toolResponded #

Event fired when a tool invocation completes or fails.

Parameters

invocationId

string

Invocation identifier.

status

InvocationStatus

Status of the invocation.

output
Optional

any

Output or error delivered as delivered to the agent. Missing if status is anything other than Success.

errorText
Optional

string

Error text for protocol users.

exception
Optional

Runtime.RemoteObject

The exception object, if the javascript tool threw an error>

WebMCP.toolsAdded #

Event fired when new tools are added.

Parameters

tools

array[ Tool ]

Array of tools that were added.

WebMCP.toolsRemoved #

Event fired when tools are removed.

Parameters

tools

array[ Tool ]

Array of tools that were removed.

Types

WebMCP.Annotation #

Tool annotations

Type: object

Properties

readOnly
Optional

boolean

A hint indicating that the tool does not modify any state.

autosubmit
Optional

boolean

If the declarative tool was declared with the autosubmit attribute.

WebMCP.InvocationStatus #

Represents the status of a tool invocation.

Type: string

Allowed values: Success, Canceled, Error

WebMCP.Tool #

Definition of a tool that can be invoked.

Type: object

Properties

name

string

Tool name.

description

string

Tool description.

inputSchema
Optional

object

Schema for the tool's input parameters.

annotations
Optional

Annotation

Optional annotations for the tool.

frameId

Page.FrameId

Frame identifier associated with the tool registration.

backendNodeId
Optional

DOM.BackendNodeId

Optional node ID for declarative tools.

stackTrace
Optional

Runtime.StackTrace

The stack trace at the time of the registration.