/**
 * @license
 * Copyright 2026 Qwen Team
 * SPDX-License-Identifier: Apache-2.0
 */
/** Longest flattened label kept anywhere a sender names itself. */
export declare const MAX_LABEL_CHARS = 200;
/** Longest name a record keeps: it is printed in a fixed-width column. */
export declare const MAX_SESSION_NAME_CHARS = 40;
/**
 * One line of printable text, at most {@link MAX_LABEL_CHARS} code points.
 * Counted in code points so the cut never leaves half of an astral
 * character behind.
 */
export declare function flattenPeerLabel(value: string): string;
/**
 * The name a record stores: flattened, then cut to
 * {@link MAX_SESSION_NAME_CHARS} code points. Counted in code points so an
 * astral character at the boundary is never split into a lone surrogate.
 */
export declare function boundSessionName(name: string): string;
/**
 * Six hex characters of `sha256(sessionId)`: the handle that tells two
 * sessions of the same name apart. Derived rather than random, so a session
 * prints the same one every time it is listed.
 */
export declare function peerRef(sessionId: string): string;
/**
 * A readable default name: the directory's basename plus two hex characters
 * of the session id, since two sessions in one directory is the common case.
 */
export declare function deriveSessionName(cwd: string, sessionId: string): string;