/**
 * ANSI truecolor (24-bit RGB) helpers for the activation banner.
 *
 * Uses exact brand colors (#7800AB is the Cursell purple). Modern terminals
 * (Claude Code, iTerm2, VS Code, Windows Terminal) support 24-bit color.
 * Respects NO_COLOR env var (https://no-color.org) and dumb terminals.
 */
export declare const SUPPORTS_COLOR: boolean;
export type RGB = readonly [number, number, number];
export declare const BRAND_PURPLE: RGB;
export declare const BLACK: RGB;
export declare const color: {
    violet: (s: string) => string;
    black: (s: string) => string;
    grayDark: (s: string) => string;
    grayMedium: (s: string) => string;
    grayLight: (s: string) => string;
    white: (s: string) => string;
    brightWhite: (s: string) => string;
};
/**
 * Apply a semantic tint to a text segment.
 *
 * Tints map to the mascot's anatomy (from mascots.ts):
 *   - signal: dendrite/terminal pulses (light gray)
 *   - wire:   arms and axons connecting parts (medium gray)
 *   - body:   cell body / soma (brand violet)
 *   - accent: eyes (black, for contrast against violet)
 *   - plain:  no color (used for empty spaces)
 */
export declare function tint(text: string, _name: "signal" | "wire" | "body" | "accent" | "plain"): string;
/** Strip ANSI escape codes to compute visible length. */
export declare function stripAnsi(s: string): string;
/** Visible character length (ignores ANSI escapes). */
export declare function visibleLen(s: string): number;