/**
 * Message handling utilities for Slack
 *
 * Provides utilities for:
 * - Detecting bot mentions in messages
 * - Stripping bot mention from message text
 * - Determining if a message should be processed
 */
/**
 * Check if the bot was mentioned in a message
 *
 * Slack format for mentions: <@U1234567890>
 *
 * @param text - Message text
 * @param botUserId - Bot's user ID
 * @returns true if the bot was mentioned
 */
export declare function isBotMentioned(text: string, botUserId: string): boolean;
/**
 * Strip the bot mention from message text
 *
 * Removes <@BOTID> and trims whitespace.
 *
 * @param text - Message text
 * @param botUserId - Bot's user ID
 * @returns Cleaned message text
 */
export declare function stripBotMention(text: string, botUserId: string): string;
/**
 * Strip all user mentions from message text
 *
 * @param text - Message text
 * @returns Text with all mentions removed
 */
export declare function stripMentions(text: string): string;
/**
 * Determine if a message should be processed
 *
 * Rules:
 * - Ignore messages from bots
 * - Process app_mention events (always a mention)
 * - Process thread replies in active conversation threads
 *
 * @param event - Slack event data
 * @param botUserId - Bot's user ID
 * @returns true if the message should be processed
 */
export declare function shouldProcessMessage(event: {
    bot_id?: string;
    subtype?: string;
    user?: string;
    thread_ts?: string;
}, botUserId: string): boolean;
/**
 * Process a message event and extract the prompt
 *
 * @param text - Raw message text
 * @param botUserId - Bot's user ID
 * @returns Processed prompt text
 */
export declare function processMessage(text: string, botUserId: string): string;
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