Stdio command path resolve

crates/mcp-client/src/transport/stdio.rs

@@ -1,6 +1,7 @@
 use std::collections::HashMap;
 use std::sync::Arc;
 use tokio::process::{Child, ChildStderr, ChildStdin, ChildStdout, Command};
+use std::path::Path;
 
 use async_trait::async_trait;
 use mcp_core::protocol::JsonRpcMessage;
@@ -195,8 +196,26 @@ impl StdioTransport {
         }
     }
 
+    fn resolve_command_path(&self) -> Result<String, Error> {
+        let command = &self.command;
+        let path = Path::new(command);
+
+        if path.is_absolute() {
+            return Ok(command.to_string());
+        }
+
+        match std::env::current_dir() {
+            Ok(cwd) => {
+                let abs_path = cwd.join(path);
+                Ok(abs_path.to_string_lossy().into_owned())
+            }
+            Err(e) => Err(Error::StdioProcessError(format!("Failed to get current directory: {}", e)))
+        }
+    }
+
     async fn spawn_process(&self) -> Result<(Child, ChildStdin, ChildStdout, ChildStderr), Error> {
-        let mut command = Command::new(&self.command);
+        let resolved_command = self.resolve_command_path()?;
+        let mut command = Command::new(&resolved_command);
         command
             .envs(&self.env)
             .args(&self.args)