/**
 * Display Protocol Utilities
 *
 * Shared helpers for deterministic MCP tool output formatting.
 * All gitmem tools use the `display` field pattern so the LLM
 * echoes pre-formatted output verbatim instead of reformatting JSON.
 *
 * Design system: docs/cli-ux-guidelines.md
 *
 * Zero dependencies on other gitmem internals — keep this lightweight.
 */
/** ANSI escape codes — resolve to empty strings when color is disabled. */
export declare const ANSI: {
    readonly red: "" | "\u001B[31m";
    readonly yellow: "" | "\u001B[33m";
    readonly green: "" | "\u001B[32m";
    readonly bold: "" | "\u001B[1m";
    readonly dim: "" | "\u001B[2m";
    readonly reset: "" | "\u001B[0m";
};
/**
 * Wrap formatted content with the display protocol suffix.
 *
 * NOTE: When the PostToolUse display hook is active, this suffix is stripped
 * and the display is routed directly to the terminal. The suffix remains as
 * a fallback for environments without the hook (e.g. Brain Cloud, DAC).
 */
export declare function wrapDisplay(content: string): string;
/** Ripple mark: dim outer ring, red inner ring, bold center dot. */
export declare const RIPPLE: string;
/**
 * Build the product line: `((●)) gitmem ── <tool> [· detail]`
 * The ripple mark + red "gitmem" form the brand identity.
 */
export declare function productLine(tool: string, detail?: string): string;
/** Severity text indicators with ANSI color */
export declare const SEV: Record<string, string>;
/** Severity indicator without color (for non-display contexts) */
export declare const SEV_PLAIN: Record<string, string>;
/** Learning type labels with ANSI color */
export declare const TYPE: Record<string, string>;
/** Type labels without color */
export declare const TYPE_PLAIN: Record<string, string>;
/** Colored status words */
export declare const STATUS: {
    readonly ok: "ok" | "ok\u001B[0m" | "\u001B[32mok" | "\u001B[32mok\u001B[0m";
    readonly fail: "FAIL" | "FAIL\u001B[0m" | "\u001B[31mFAIL" | "\u001B[31mFAIL\u001B[0m";
    readonly warn: "WARN" | "WARN\u001B[0m" | "\u001B[33mWARN" | "\u001B[33mWARN\u001B[0m";
    readonly rejected: "REJECTED" | "REJECTED\u001B[0m" | "\u001B[31mREJECTED" | "\u001B[31mREJECTED\u001B[0m";
    readonly complete: "COMPLETE" | "COMPLETE\u001B[0m" | "\u001B[32mCOMPLETE" | "\u001B[32mCOMPLETE\u001B[0m";
    readonly failed: "FAILED" | "FAILED\u001B[0m" | "\u001B[31mFAILED" | "\u001B[31mFAILED\u001B[0m";
    readonly pass: "+" | "+\u001B[0m" | "\u001B[32m+" | "\u001B[32m+\u001B[0m";
    readonly miss: "-" | "-\u001B[0m" | "\u001B[31m-" | "\u001B[31m-\u001B[0m";
};
/**
 * Format a relative time string from a date.
 * "2m ago", "3h ago", "5d ago", "2w ago"
 */
export declare function relativeTime(date: string | Date): string;
/**
 * Truncate a string with ellipsis.
 */
export declare function truncate(str: string, max: number): string;
/**
 * Wrap text with dim ANSI (convenience helper).
 */
export declare function dimText(str: string): string;
/**
 * Wrap text with bold ANSI (convenience helper).
 */
export declare function boldText(str: string): string;
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