/**
 * Console Message Formatting
 *
 * Formats console messages for different output modes:
 * - Preview: Compact CSV for list/recent/search (minimal tokens)
 * - Summary: Smart truncation for detail view (budget-constrained)
 * - Full: Complete message with all data
 */
/** Token budget for smart summary mode */
export declare const DEFAULT_SUMMARY_TOKEN_BUDGET = 100;
/**
 * Estimate token count for a value (~4 chars per token)
 */
export declare function estimateTokens(value: any): number;
/** Compact preview for list/recent/search (CSV output) */
export interface ConsoleMessagePreview {
    id: string;
    type: string;
    preview: string;
    tokens: number;
    truncated: boolean;
}
/** Smart summary for detail view with token budget */
export interface ConsoleMessageSummary {
    id: string;
    type: string;
    text: string;
    textTruncated?: {
        shown: number;
        total: number;
    };
    args?: any[];
    argsSummary?: string;
    location?: {
        url: string;
        lineNumber: number;
        columnNumber: number;
    };
    stackTrace?: {
        shown: number;
        total: number;
        frames: any[];
    };
    timestamp: number;
    _tokens: {
        full: number;
        returned: number;
    };
}
/** Input for preview/summary creation (matches StoredConsoleMessage) */
interface MessageInput {
    id: string;
    type: string;
    text: string;
    args?: any[];
    location?: {
        url: string;
        lineNumber: number;
        columnNumber: number;
    };
    stackTrace?: any[];
    timestamp: number;
}
/**
 * Create a compact preview of a console message for list views.
 * Returns minimal data with token count for the full message.
 */
export declare function createMessagePreview(message: MessageInput): ConsoleMessagePreview;
/**
 * Format message previews as CSV and calculate stats
 */
export declare function formatPreviewsWithStats(previews: ConsoleMessagePreview[]): {
    csv: string;
    truncatedCount: number;
    totalTokens: number;
};
/**
 * Build complete list response text
 */
export declare function buildListResponseText(headerText: string, csv: string, truncatedCount: number, totalTokens: number): string;
/**
 * Create a smart summary of a console message within a token budget.
 * Prioritizes: text > args > stack trace
 */
export declare function createMessageSummary(message: MessageInput, tokenBudget?: number): ConsoleMessageSummary;
/**
 * Generate hints for how to extract more data from a truncated summary
 */
export declare function generateSummaryHints(summary: ConsoleMessageSummary): string;
/**
 * Build summary response text
 */
export declare function buildSummaryResponseText(message: {
    id: string;
    type: string;
}, summary: ConsoleMessageSummary, jsonBlock: string): string;
/** Result of text extraction */
export interface TextExtractionResult {
    text: string;
    extraction?: {
        offset: number;
        limit?: number;
        total: number;
        hasMore: boolean;
    };
}
/** Result of args extraction */
export type ArgsExtractionResult = {
    args: any[];
    extraction: {
        index: number;
        total: number;
    };
} | {
    error: string;
};
/**
 * Extract a portion of text from a message
 */
export declare function extractTextPortion(text: string, offset?: number, limit?: number): TextExtractionResult;
/**
 * Extract a specific argument by index
 */
export declare function extractArgByIndex(args: any[] | undefined, index: number): ArgsExtractionResult;
/**
 * Format console message summary as TOON (one property per line for readability)
 */
export declare function formatSummaryAsToon(summary: ConsoleMessageSummary): string;
/**
 * Format full message detail as TOON (one property per line for readability)
 */
export declare function formatMessageDetailAsToon(data: {
    id: string;
    type: string;
    text: string;
    args?: any[];
    location?: {
        url: string;
        lineNumber: number;
        columnNumber: number;
    };
    stackTrace?: any[];
    timestamp: number;
    _tokens: {
        full: number;
        returned: number;
    };
    _textExtraction?: {
        offset: number;
        limit?: number;
        total: number;
        hasMore: boolean;
    };
    _argsExtraction?: {
        index: number;
        total: number;
    };
}): string;
export {};
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