export declare function getDefaultShell(platform: string): string;
/**
 * Shell families that differ in invocation flags and command syntax.
 * "wsl" is the wsl.exe launcher (which runs bash in the default distro);
 * "posix" covers bash/zsh/sh and other `-c`-style shells.
 */
export type ShellKind = "powershell" | "cmd" | "wsl" | "posix";
/**
 * Classify a shell executable (name or full path) into its family.
 *
 * This is the single classification used both for building spawn arguments
 * (getShellArgs) and for shell-specific prompting, so the syntax the model is
 * told to use always matches the syntax the executor actually accepts.
 */
export declare function getShellKind(shell: string): ShellKind;
export interface ShellInvocation {
    args: string[];
    input?: string;
}
export declare function getShellInvocation(shell: string, command: string): ShellInvocation;
/**
 * @deprecated Use getShellInvocation() when executing commands so PowerShell
 * source can travel through Unicode-safe stdin.
 */
export declare function getShellArgs(shell: string, command: string): string[];