/**
 * Client-safe utility functions for prompt handling
 */
export interface PromptMessage {
    type?: string;
    name?: string;
    role?: string;
    content?: string;
}
/**
 * Extracts placeholder names from prompt messages.
 * This is a client-safe version that doesn't depend on server-side types.
 * @param messages Array of prompt messages
 * @returns Array of placeholder names
 */
export declare function extractPlaceholderNames(messages: PromptMessage[]): string[];
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