/**
 * Shared tool invocation extraction from MastraDBMessages.
 *
 * Used by both the Outcome and Efficiency scorers to extract completed
 * tool calls from message content, handling both the `parts` array (primary)
 * and the legacy `toolInvocations` array.
 */
import type { MastraDBMessage } from '@mastra/core/agent';
export type ExtractedToolCall = {
    toolCallId?: string;
    toolName: string;
    args: Record<string, unknown>;
    result: unknown;
    isError: boolean;
    index: number;
};
/**
 * Extract completed tool invocations from MastraDBMessages.
 *
 * Handles both:
 * - `content.parts` (primary format, MastraToolInvocationPart)
 * - `content.toolInvocations` (legacy format, AI SDK ToolInvocation[])
 */
export declare function extractToolCalls(messages: MastraDBMessage[]): ExtractedToolCall[];
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