use std::str::FromStr;

/// Parses tool call arguments JSON, treating empty strings as empty objects.
///
/// Many LLM providers return empty strings for tool calls with no arguments.
/// This helper normalizes that behavior by converting empty strings to `{}`.
pub fn parse_tool_arguments(arguments: &str) -> Result<serde_json::Value, serde_json::Error> {
    if arguments.is_empty() {
        Ok(serde_json::Value::Object(Default::default()))
    } else {
        serde_json::Value::from_str(arguments)
    }
}