diff --git a/server/src/agents/gates.rs b/server/src/agents/gates.rs
index cbbf9b4..f27108d 100644
--- a/server/src/agents/gates.rs
+++ b/server/src/agents/gates.rs
@@ -255,9 +255,7 @@ mod tests {
         use std::fs;
         use std::os::unix::fs::PermissionsExt;
 
-        let tmp = tempfile::Builder::new()
-            .tempdir_in(env!("CARGO_MANIFEST_DIR"))
-            .unwrap();
+        let tmp = tempfile::tempdir().unwrap();
         let path = tmp.path();
         let script_dir = path.join("script");
         fs::create_dir_all(&script_dir).unwrap();
@@ -278,9 +276,7 @@ mod tests {
         use std::fs;
         use std::os::unix::fs::PermissionsExt;
 
-        let tmp = tempfile::Builder::new()
-            .tempdir_in(env!("CARGO_MANIFEST_DIR"))
-            .unwrap();
+        let tmp = tempfile::tempdir().unwrap();
         let path = tmp.path();
         let script_dir = path.join("script");
         fs::create_dir_all(&script_dir).unwrap();
@@ -316,9 +312,7 @@ mod tests {
         use std::fs;
         use std::os::unix::fs::PermissionsExt;
 
-        let tmp = tempfile::Builder::new()
-            .tempdir_in(env!("CARGO_MANIFEST_DIR"))
-            .unwrap();
+        let tmp = tempfile::tempdir().unwrap();
         let path = tmp.path();
         let script_dir = path.join("script");
         fs::create_dir_all(&script_dir).unwrap();
@@ -346,9 +340,7 @@ mod tests {
         use std::fs;
         use std::os::unix::fs::PermissionsExt;
 
-        let tmp = tempfile::Builder::new()
-            .tempdir_in(env!("CARGO_MANIFEST_DIR"))
-            .unwrap();
+        let tmp = tempfile::tempdir().unwrap();
         let path = tmp.path();
         let script_dir = path.join("script");
         fs::create_dir_all(&script_dir).unwrap();
diff --git a/server/src/agents/pool/mod.rs b/server/src/agents/pool/mod.rs
index c26c6a6..d8426d1 100644
--- a/server/src/agents/pool/mod.rs
+++ b/server/src/agents/pool/mod.rs
@@ -1101,6 +1101,7 @@ mod tests {
     use crate::agents::{AgentEvent, AgentStatus, PipelineStage};
     use crate::config::ProjectConfig;
     use portable_pty::{CommandBuilder, PtySize, native_pty_system};
+    use std::process::Command;
 
     fn make_config(toml_str: &str) -> ProjectConfig {
         ProjectConfig::parse(toml_str).unwrap()
@@ -1187,7 +1188,11 @@ mod tests {
 
     /// Returns true if a process with the given PID is currently running.
     fn process_is_running(pid: u32) -> bool {
-        std::path::Path::new(&format!("/proc/{pid}")).exists()
+        Command::new("ps")
+            .args(["-p", &pid.to_string()])
+            .output()
+            .map(|o| o.status.success())
+            .unwrap_or(false)
     }
 
     #[test]