import { FC } from 'react';
export type AssistantToolStepStatus = "queued" | "running" | "completed" | "failed";
export interface AssistantToolStep {
    /** Stable key within the message. */
    id: string;
    /** Humanised label shown in the step row. */
    label: string;
    /** Raw tool name (surfaced in the collapsed "Details"). */
    tool: string;
    status: AssistantToolStepStatus;
}
/**
 * Split streamed assistant content into its tool-progress steps and the
 * remaining prose. Called by AssistantMessageItem so the tool lines render as an
 * AssistantToolActivity card while the rest renders as markdown.
 */
export declare function parseToolActivity(content: string): {
    steps: AssistantToolStep[];
    text: string;
};
/**
 * AssistantToolActivity — compact progress card for a turn's tool run (per the
 * ai-assistant-v2 "tool-progress" mockup). Renders each step in one of four
 * states (queued / running / completed / failed) with a hollow circle, spinner,
 * green check or red x, plus a collapsed "Details" listing the raw tool names.
 */
export declare const AssistantToolActivity: FC<{
    steps: AssistantToolStep[];
}>;
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