Feishu MCP Server

/** * Mask sensitive API key for display * * Obfuscates an API key by replacing all but the last 4 characters with asterisks. * Preserves a consistent masked format for security while providing a way to * distinguish between different keys. * * @param key - The API key to mask * @returns Masked key with only the last 4 characters visible */ export function maskApiKey(key: string): string { if (key.length <= 4) return '****'; return `****${key.slice(-4)}`; }