diff --git a/src/agent/oneshot.rs b/src/agent/oneshot.rs
index 6ab79ca..2332d27 100644
--- a/src/agent/oneshot.rs
+++ b/src/agent/oneshot.rs
@@ -474,9 +474,13 @@ pub fn run_one_agent(
     // Bail check: if the agent defines a bail script, run it between steps.
     let bail_script = def.bail.as_ref().map(|name| defs::agents_dir().join(name));
     let state_dir_for_bail = state_dir.clone();
+    // Find our own pid file so we can pass it to the bail script
+    let our_pid = std::process::id();
+    let our_pid_file = format!("pid-{}", our_pid);
     let bail_fn = move |step_idx: usize| -> Result<(), String> {
         if let Some(ref script) = bail_script {
             let status = std::process::Command::new(script)
+                .arg(&our_pid_file)
                 .current_dir(&state_dir_for_bail)
                 .status()
                 .map_err(|e| format!("bail script {:?} failed: {}", script, e))?;