def reply_analyzer(email_text):
    """
    Analyzes email text to determine interest level and suggests next action.

    Args:
        email_text (str): Text of the email to analyze.

    Returns:
        dict: Dictionary with 'interested' boolean, 'urgency' int 1-10, 
              and 'next_action' string.
    """
    keywords = ['urgent', 'important', 'deadline']
    urgency = sum(1 for keyword in keywords if keyword in email_text.lower())
    next_action = 'Respond to the sender with a clear plan of action.'
    
    return {
        'interested': len(email_text) > 50,
        'urgency': min(max(urgency, 0), 10),
        'next_action': next_action
    }