/**
 * @fileoverview Module-level canvas accessor for DataCanvas integration.
 * Wired during createApp() setup() before any handler runs.
 * @module services/canvas/canvas-accessor
 */
import type { DataCanvas } from '@cyanheads/mcp-ts-core/canvas';
/** Store the canvas instance from createApp setup(). */
export declare const setCanvas: (c: DataCanvas | undefined) => void;
/** Retrieve the canvas instance. Returns undefined when CANVAS_PROVIDER_TYPE is not set. */
export declare const getCanvas: () => DataCanvas | undefined;
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