For AI agents: the complete documentation index is available at /next/llms.txt, the full documentation bundle is available at /next/llms-full.txt, and this page is available as Markdown at /next/api/genui/openui/core/interfaces/ActionEvent.md.
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      • Interface: ActionEvent

      Structured action event fired by interactive components.

      Properties

      formName?

      optional formName?: string

      The form name that triggered this action, if any.

      formState?

      optional formState?: Record<string, unknown>

      Raw form state at the time of the action — all field values.

      humanFriendlyMessage

      humanFriendlyMessage: string

      Human-readable label for the action (displayed as user message in chat).

      params

      params: Record<string, unknown>

      Action-specific params (e.g. { url } for OpenUrl, custom params for Custom).

      type

      type: BuiltinActionType | string & object

      Action type. See BuiltinActionType for built-in types.

      Except as otherwise noted, this work is licensed under a Creative Commons Attribution 4.0 International License, and code samples are licensed under the Apache License 2.0.