/**
 * Message formatting utilities for Slack
 *
 * Provides utilities for:
 * - Converting standard markdown to Slack's mrkdwn format
 * - Creating context attachments with color coding
 *
 * Note: Message splitting utilities (findSplitPoint, splitMessage, needsSplit,
 * truncateMessage, formatCodeBlock) are provided by @herdctl/chat.
 */
export { DEFAULT_MESSAGE_DELAY_MS, findSplitPoint, formatCodeBlock, type MessageSplitOptions, MIN_CHUNK_SIZE, needsSplit, type SplitResult, splitMessage, truncateMessage, } from "@herdctl/chat";
/**
 * Slack's practical maximum message length
 *
 * Hard limit is ~40K, but messages above ~4K become unwieldy in threads.
 */
export declare const SLACK_MAX_MESSAGE_LENGTH = 4000;
/**
 * Context attachment for Slack messages
 */
export interface ContextAttachment {
    footer: string;
    color: string;
}
/**
 * Convert standard markdown to Slack's mrkdwn format
 *
 * Uses slackify-markdown (Unified/Remark-based AST parser) for robust
 * conversion that handles edge cases regex approaches miss.
 */
export declare function markdownToMrkdwn(text: string): string;
/**
 * Create a context attachment for Slack messages
 *
 * Used to display context usage information in a color-coded footer.
 */
export declare function createContextAttachment(contextPercent: number): ContextAttachment;
/**
 * Escape Slack mrkdwn characters in text
 */
export declare function escapeMrkdwn(text: string): string;
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