/**
 * Deterministic visual parameter derivation from Ed25519 public keys.
 *
 * Each agent's 32-byte public key is decoded and its raw bytes are used
 * to seed every visual parameter — ring count, hues, stroke widths,
 * rotation speeds, sinusoidal deformations, pulse rate, and glow intensity.
 * The result is a unique, reproducible visual fingerprint per agent.
 */
export interface IdentityRing {
    /** HSL hue (0–360) */
    hue: number;
    /** HSL saturation (0–100) */
    saturation: number;
    /** HSL lightness (0–100) */
    lightness: number;
    /** Stroke width in viewBox units */
    strokeWidth: number;
    /** Full-rotation period in seconds */
    rotationDuration: number;
    /** Rotation direction */
    rotationDirection: 'cw' | 'ccw';
    /** Sinusoidal radial displacement amplitude */
    deformAmplitude: number;
    /** Number of sinusoidal lobes (2–7) */
    deformFrequency: number;
    /** Phase offset in radians (0–2π) */
    deformPhase: number;
    /** Normalised distance from centre (0–1) */
    radiusFraction: number;
}
export interface IdentityParams {
    rings: IdentityRing[];
    /** Breathing pulse period in seconds */
    pulseRate: number;
    /** Overall glow strength (0–1) */
    glowIntensity: number;
    /** Core hue (complementary to ring hue) */
    coreHue: number;
    coreSaturation: number;
    coreLightness: number;
    /** Short hex prefix for scoping SVG filter IDs */
    idPrefix: string;
    /** Visibility-safe hex accent color derived from the key's base hue */
    accentHex: string;
}
export declare function deriveIdentityParams(publicKey: string): IdentityParams;
/**
 * Build an SVG `d` attribute for a closed ring whose radius is
 * perturbed by `amplitude * sin(frequency * θ + phase)`.
 */
export declare function generateDeformedRingPath(cx: number, cy: number, radius: number, amplitude: number, frequency: number, phase: number, segments?: number): string;
export declare function identityColor(h: number, s: number, l: number, a?: number): string;
export interface FingerprintColor {
    /** Raw hex from fingerprint chars, e.g. "#A1B2C3" */
    raw: string;
    /** Visibility-adjusted hex, e.g. "#8BA2B8" */
    hex: string;
    /** HSL tuple after clamping [h, s, l] */
    hsl: [number, number, number];
}
/**
 * Derive a unique, visibility-safe hex color from a fingerprint string.
 *
 * Takes the first 6 hex characters (after stripping dashes), converts to
 * HSL, clamps saturation to [30, 100] and lightness to [35, 65], then
 * converts back.
 */
export declare function deriveFingerprintColor(fingerprint: string): FingerprintColor;
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