/**
 * User-prompt template hook — wires UserPromptTemplate into
 * experimental.chat.messages.transform to inject per-agent user prompts.
 *
 * For each agent that has `user_prompt` configured, the template is
 * rendered with runtime variables and appended to the user's last message.
 */
import type { Logger, PluginConfig } from '../types';
export interface UserPromptTemplateHooks {
    /** Call from experimental.chat.messages.transform. */
    onMessagesTransform: (output: {
        messages: Array<{
            info: {
                role: string;
                agent?: string;
            };
            parts: Array<Record<string, unknown>>;
        }>;
    }, context: {
        directory: string;
        projectId: string;
    }) => void;
}
export declare function createUserPromptTemplateHooks(logger: Logger, config: PluginConfig): UserPromptTemplateHooks;
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