diff --git a/src/agents/bash-tools.exec-runtime.ts b/src/agents/bash-tools.exec-runtime.ts
index c54241e025c..e4e3fe8b87e 100644
--- a/src/agents/bash-tools.exec-runtime.ts
+++ b/src/agents/bash-tools.exec-runtime.ts
@@ -153,6 +153,8 @@ export type ExecProcessFailureKind =
   | "aborted"
   | "runtime-error";
 
+type ExecExitFailureKind = Exclude<ExecProcessFailureKind, "runtime-error">;
+
 export type ExecProcessOutcome =
   | {
       status: "completed";
@@ -315,7 +317,7 @@ function classifyExecFailureKind(params: {
   exitCode: number;
   isShellFailure: boolean;
   exitSignal: NodeJS.Signals | number | null;
-}): ExecProcessFailureKind {
+}): ExecExitFailureKind {
   if (params.isShellFailure) {
     return params.exitCode === 127 ? "shell-command-not-found" : "shell-not-executable";
   }
@@ -332,13 +334,11 @@ function classifyExecFailureKind(params: {
 }
 
 export function formatExecFailureReason(params: {
-  failureKind: ExecProcessFailureKind;
+  failureKind: ExecExitFailureKind;
   exitSignal: NodeJS.Signals | number | null;
   timeoutSec: number | null | undefined;
 }): string {
   switch (params.failureKind) {
-    case "runtime-error":
-      return "Command failed before exit status was captured";
     case "shell-command-not-found":
       return "Command not found";
     case "shell-not-executable":