/**
 * Scheduled-task check extracted from wait-tool.ts.
 *
 * Checks for due scheduled tasks and returns an appropriate ToolResult
 * when a task fires (including DMN sentinel handling), or null if nothing is due.
 */
import type { ToolResult } from "../../lib/types.js";
interface TaskContext {
    state: {
        lastOperatorMessageAt: number;
        sessionStartedAt: number;
    };
    generateDmnReflection: (threadId: number) => string;
}
/**
 * Check whether any scheduled task is due for the given thread.
 *
 * Returns a `ToolResult` ready to be returned from the wait-tool when a task
 * fires, or `null` when nothing is due.
 *
 * Used from both the idle-poll check (inside the loop) and the post-timeout
 * check (after the loop exits).
 */
export declare function checkForDueTasks(ctx: TaskContext, effectiveThreadId: number): ToolResult | null;
export {};
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