/**
 * shell.ts — Subshell escape for the CareerVivid REPL
 *
 * Intercepts user input starting with `!` and spawns it as a raw
 * shell command. stdout/stderr are piped directly to the terminal.
 * The agent session and conversation history are never affected.
 */
/**
 * Runs a shell command and streams its output to the terminal.
 * Returns a promise that resolves when the command exits.
 */
export declare function runShellEscape(command: string): Promise<void>;
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