/**
 * Sandbox Chat Command Handler
 * Supports both single-command and interactive modes
 *
 * Usage:
 *   npx newo sandbox "Hello" --customer <idn>               # Single message mode
 *   npx newo sandbox --actor <actor_id> "Follow up"         # Continue existing chat
 *   npx newo sandbox "ping" --connector vibe_agent          # Select specific connector (v3.7.5)
 *   npx newo sandbox --list-connectors                      # Show running sandbox connectors (v3.7.5)
 *   npx newo sandbox --file ./msg.txt --actor <id>          # Message from file (v3.7.5)
 *   cat msg.txt | npx newo sandbox --stdin                  # Message from stdin (v3.7.5)
 *   npx newo sandbox "ping" --timeout 420                   # Custom response timeout in seconds (v3.7.5)
 *   npx newo sandbox "ping" --json                          # Machine-readable output (v3.7.5)
 */
import type { MultiCustomerConfig, CliArgs } from '../../types.js';
/**
 * Handle sandbox command
 */
export declare function handleSandboxCommand(customerConfig: MultiCustomerConfig, args: CliArgs, verbose: boolean): Promise<void>;
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