Function sanitize_progress_tool_label 

pub fn sanitize_progress_tool_label(
    value: &str,
    truncated: &mut bool,
) -> Option<String>

Collapses a provider tool name into a small class label (Read, Write, Shell, …). Returns None for an empty name; sets truncated whenever the label differs from the trimmed input, so a reader can tell a generalised label from a verbatim one.