export interface ShellConfig {
    shell: string;
    args: string[];
    env: Record<string, string>;
    prefix: string | undefined;
}
/**
 * Strip disabled macOS malloc-stack-logging vars from `process.env` in place.
 *
 * macOS leaves `MallocStackLogging=0` (or similar) inherited by debug-attached
 * shells. Bun's libc init then prints `MallocStackLogging: can't turn off
 * malloc stack logging because it was not enabled.` to stderr for every
 * subprocess. Scrubbing once at startup means every child we spawn — bash,
 * bun subagents, plugin installs, ptree commands — inherits a clean env.
 */
export declare function scrubProcessEnv(): void;
/**
 * Resolve a basic shell (bash or sh) as fallback.
 */
export declare function resolveBasicShell(): string | undefined;
/**
 * Get shell configuration based on platform.
 * Resolution order:
 * 1. User-specified shellPath in settings.json
 * 2. On Windows: Git Bash in known locations, then bash on PATH
 * 3. On Unix: $SHELL if bash/zsh, then fallback paths
 * 4. Fallback: sh
 */
export declare function getShellConfig(customShellPath?: string): ShellConfig;
/**
 * Clear the memoized shell configuration so the next {@link getShellConfig}
 * call re-resolves the shell and re-reads the environment (shell selection and
 * the bash CI/login flags). Primarily for tests that vary those inputs.
 */
export declare function resetShellConfigCache(): void;