def expand_capabilities(capabilities):
    """
    Expand capabilities based on given list of tuples.

    Args:
        capabilities (list): List of tuples containing capability name, score, and other metrics.

    Returns:
        dict: Expanded capabilities dictionary.
    """
    expanded = {}
    for cap in capabilities:
        name, score, _, _ = cap
        expanded[name] = {'score': score}
    return expanded

# Example usage:
capabilities_list = [('evolved_verified_generate_test_1768680667', 4235.89001196408, 51, 8305.7),
                     ('verified_default', 4235.0, 51, 8303.9),
                     ('evolved_verified_create_memory_1768424362', 4235.89001196408, 52, 8145.9)]

expanded_capabilities = expand_capabilities(capabilities_list)
print(expanded_capabilities)