import type { TraversalLimits } from 'foottrace/cause';
import type { TraceCauseOptions } from './causeTypes.js';
/** Tool ceilings are deliberately smaller than the reader's absolute ceilings. */
export declare const CAUSE_TOOL_CAPS: Readonly<{
    maxNodes: 100;
    maxDepth: 20;
    maxEdges: 1000;
    maxCalls: 1000;
    timeoutMs: 5000;
    maxChars: 16000;
}>;
/** Resolve host policy only. Model arguments never enter this resource boundary. */
export declare function causeLimits(options?: TraceCauseOptions): {
    backward: {
        maxNodes: number;
        maxDepth?: number | undefined;
        maxEdges: number;
        maxCalls: number;
    };
    impact: TraversalLimits | undefined;
    maxNodes: number;
    maxDepth: number;
    maxEdges: number;
    maxCalls: number;
    timeoutMs: number;
    maxChars: number;
};
export type CauseLimits = ReturnType<typeof causeLimits>;