Baptiste - Great product, phone number input is fine. I was able to add the forced formatting by accessing the shadow dom. It works pretty well to auto-format phone, social security number and ein. Check it out: // Universal Auto-Formatter - Place once before first formatted input
(function() {
    'use strict';
    
    // Prevent multiple instances
    if (window.typebotAutoFormatter) return;
    window.typebotAutoFormatter = true;
    
    const FORMATTERS = {
        phone: (digits) => {
            if (digits.length <= 3) return `(${digits}`;
            if (digits.length <= 6) return `(${digits.slice(0,3)}) ${digits.slice(3)}`;
            return `(${digits.slice(0,3)}) ${digits.slice(3,6)}-${digits.slice(6,10)}`;
        },
        ssn: (digits) => {
            if (digits.length <= 3) return digits;
            if (digits.length <= 5) return `${digits.slice(0,3)}-${digits.slice(3)}`;
            return `${digits.slice(0,3)}-${digits.slice(3,5)}-${digits.slice(5,9)}`;
        },
        ein: (digits) => digits.length <= 2 ? digits : `${digits.slice(0,2)}-${digits.slice(2,9)}`
    };
    
    function detectInputType(input) {
        const placeholder = input.placeholder?.toLowerCase() || '';
        if (input.type === 'tel' || placeholder.includes('phone')) return 'phone';
        if (placeholder.includes('social security')) return 'ssn';
        if (placeholder.includes('tax id') || placeholder.includes('business tax')) return 'ein';
        return null;
    }
    
    function formatInput(input, type) {
        const digits = input.value.replace(/\D/g, '');
        const formatted = FORMATTERS[type](digits);
        if (input.value !== formatted) {
            input.value = formatted;
        }
    }
    
    function attachFormatters() {
        const typebot = document.querySelector('typebot-standard');
        if (!typebot?.shadowRoot) {
            setTimeout(attachFormatters, 500);
            return;
        }
        
        const inputs = typebot.shadowRoot.querySelectorAll('input');
        inputs.forEach(input => {
            const type = detectInputType(input);
            if (!type) return;
            
            // Remove existing listeners
            input.removeEventListener('input', input._formatter);
            input.removeEventListener('keypress', input._validator);
            
            // Add formatting
            input._formatter = () => formatInput(input, type);
            input.addEventListener('input', input._formatter);
            
            // Add validation for numeric-only fields
            if (type === 'ssn' || type === 'ein') {
                input._validator = (e) => {
                    if (!/[\d\b\t\x7f]/.test(e.key) && !e.ctrlKey) e.preventDefault();
                };
                input.addEventListener('keypress', input._validator);
            }
        });
        
        // Re-check for new inputs periodically
        setTimeout(attachFormatters, 2000);
    }
    
    attachFormatters();
})();