import { z } from 'zod';
export type WorkflowType = 'web' | 'print' | 'video' | 'unknown';
export type CoordinateSystem = 'artboard-web' | 'document';
export declare function getSessionCoordinateSystem(): CoordinateSystem | null;
export declare function getSessionWorkflow(): WorkflowType | null;
export declare function setSession(workflow: WorkflowType, coordinateSystem: CoordinateSystem): void;
export declare function clearSession(): void;
/** ドキュメント切替時（create/close/open）に自動検出キャッシュのみ無効化 */
export declare function invalidateAutoDetectCache(): void;
/**
 * Resolve coordinate_system:
 *   1. explicit param (per-tool call)
 *   2. session default (set via set_workflow)
 *   3. auto-detect from document signals (cached, invalidated on document switch)
 *   4. fallback: 'artboard-web'
 */
export declare function resolveCoordinateSystem(explicit?: CoordinateSystem): Promise<CoordinateSystem>;
export declare const coordinateSystemSchema: z.ZodOptional<z.ZodEnum<{
    "artboard-web": "artboard-web";
    document: "document";
}>>;
interface DocumentSignals {
    colorMode: string;
    rulerUnits: string;
    rasterEffectResolution: number;
    colorProfile: string;
}
export interface WorkflowHint {
    detectedWorkflow: WorkflowType;
    recommendedCoordinateSystem: CoordinateSystem;
    reasoning: string;
    signals: DocumentSignals;
}
export declare function detectWorkflow(signals: DocumentSignals): WorkflowHint;
export {};
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