/**
 * v2.2.1 P1 — dashboard-theme MCP tool handler.
 *
 * `set_dashboard_theme({mode, custom_json?})` writes to the `dashboard_prefs`
 * single-row table. Newly-connecting clients read the server-side default
 * on first visit when they have no localStorage selection yet. Local
 * operator preference (the top-right dropdown in the dashboard UI) beats
 * the server default — "path 1 client-only" per the v2.2.1 brief.
 *
 * Scope: THIS tool only writes the server-side default. It does NOT push
 * the new theme live over WebSocket to already-connected clients (that
 * would be path 2, deferred to v2.2.2 if demand surfaces). A theme change
 * shows up on the next /api/dashboard-prefs read or on full reload.
 */
import type { SetDashboardThemeInput } from "../types.js";
export declare function handleSetDashboardTheme(input: SetDashboardThemeInput): {
    content: {
        type: "text";
        text: string;
    }[];
};
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