/**
 * ASCII tree renderer for the visualization IR.
 *
 * Produces a `tree`-style listing using box-drawing characters. Designed
 * for terminal output, log files, and `.explain()`-style introspection.
 */
import type { VizNode } from "./ir.js";
export interface AsciiOptions {
    /** Show tool nodes attached to agents. Defaults to `true`. */
    showTools?: boolean;
    /** Show sub-agent transfer targets. Defaults to `true`. */
    showTransfers?: boolean;
    /** Show meta info (model, instruction snippet, …). Defaults to `true`. */
    showMeta?: boolean;
    /** Truncate instruction lines at this length. Defaults to `60`. */
    maxInstructionLen?: number;
}
/** Render a VizNode tree to a multi-line ASCII string. */
export declare function renderAscii(node: VizNode, opts?: AsciiOptions): string;
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