/**
 * Shared v2 session submit + text helpers.
 *
 * One implementation of "submit text as a user prompt on a v2 session" so the
 * generic command bridge (setup.ts) and the interview bridge stay identical;
 * avoids a setup↔interview-bridge import cycle.
 */
import type { V2Context } from './types';
/** Function that submits `text` as a user prompt on a v2 session. */
export type V2CommandSubmit = (sessionID: string, text: string) => Promise<void>;
/** Submit marker text as a user prompt via `ctx.session.prompt`. Never
 * throws — the session methods reject on transport errors and command
 * `execute` must not leak that out to the host. */
export declare function createSessionSubmit(ctx: V2Context): V2CommandSubmit;
/**
 * Join the text of `type: 'text'` content parts with `separator`.
 *
 * Non-text parts and text parts whose `text` is not a string are dropped.
 * With an empty separator this is byte-identical to keeping such parts as
 * empty strings — the join only inserts bytes between kept parts.
 */
export declare function joinTextParts(parts: ReadonlyArray<unknown>, separator: string): string;
/** Join the text parts of a v2 message content array. */
export declare function textFromContent(content: Array<Record<string, unknown>>): string;