/**
 * Injectable platform context. Every path helper takes this so the same code is
 * deterministic in tests regardless of the host OS: we pick `path.win32` or
 * `path.posix` based on the target `platform`, never the ambient separator.
 */
export interface PathCtx {
    platform?: NodeJS.Platform;
    env?: NodeJS.ProcessEnv;
}
/** The user's home directory: USERPROFILE on Windows, HOME elsewhere. */
export declare function homeDir(c?: PathCtx): string;
/** Expand a leading `~` (bare or followed by a separator) to the home directory. */
export declare function expandTilde(input: string, c?: PathCtx): string;
/**
 * The tool's config home. Defaults to `~/.claude-auto-switch`; overridable with
 * the `CLAUDE_AUTO_SWITCH_HOME` environment variable.
 */
export declare function configHome(c?: PathCtx): string;
/**
 * Where per-account profile folders live. Defaults to `<configHome>/profiles`;
 * a configured `profilesDir` (tilde allowed) overrides it.
 */
export declare function profilesDir(config: {
    profilesDir?: string;
}, c?: PathCtx): string;
/**
 * The default location where the real Claude CLI keeps credentials for the
 * DEFAULT account (spec fact 5). macOS returns the sentinel `keychain` because
 * credentials live in the Keychain there, not a file.
 */
export declare function defaultCredFile(c?: PathCtx): string;