pub fn extract_arg(arguments: &str, name: &str) -> Option<String>Expand description
Extract a string argument from a tool/prompt arguments JSON object.
use rust_web_server::mcp::extract_arg;
assert_eq!(extract_arg(r#"{"text":"hello"}"#, "text").as_deref(), Some("hello"));
assert_eq!(extract_arg(r#"{}"#, "missing"), None);