92 lines
2.7 KiB
Text
92 lines
2.7 KiB
Text
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# Copyright 2026 The Chromium Authors
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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#
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# Contributing to Chrome DevTools Protocol: https://goo.gle/devtools-contribution-guide-cdp
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experimental domain WebMCP
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depends on Runtime
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depends on Page
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depends on DOM
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# Tool annotations
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type Annotation extends object
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properties
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# A hint indicating that the tool does not modify any state.
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optional boolean readOnly
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# If the declarative tool was declared with the autosubmit attribute.
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optional boolean autosubmit
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# Represents the status of a tool invocation.
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type InvocationStatus extends string
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enum
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Success
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Canceled
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Error
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# Definition of a tool that can be invoked.
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type Tool extends object
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properties
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# Tool name.
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string name
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# Tool description.
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string description
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# Schema for the tool's input parameters.
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optional object inputSchema
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# Optional annotations for the tool.
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optional Annotation annotations
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# Frame identifier associated with the tool registration.
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Page.FrameId frameId
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# Optional node ID for declarative tools.
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optional DOM.BackendNodeId backendNodeId
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# The stack trace at the time of the registration.
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optional Runtime.StackTrace stackTrace
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# Enables the WebMCP domain, allowing events to be sent. Enabling the domain will trigger a toolsAdded event for
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# all currently registered tools.
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command enable
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# Disables the WebMCP domain.
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command disable
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# Event fired when new tools are added.
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event toolsAdded
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parameters
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# Array of tools that were added.
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array of Tool tools
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# Event fired when tools are removed.
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event toolsRemoved
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parameters
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# Array of tools that were removed.
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array of Tool tools
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# Event fired when a tool invocation starts.
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event toolInvoked
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parameters
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# Name of the tool to invoke.
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string toolName
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# Frame id
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Page.FrameId frameId
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# Invocation identifier.
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string invocationId
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# The input parameters used for the invocation.
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string input
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# Event fired when a tool invocation completes or fails.
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event toolResponded
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parameters
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# Invocation identifier.
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string invocationId
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# Status of the invocation.
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InvocationStatus status
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# Output or error delivered as delivered to the agent. Missing if `status` is anything other than Success.
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optional any output
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# Error text for protocol users.
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optional string errorText
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# The exception object, if the javascript tool threw an error>
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optional Runtime.RemoteObject exception
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