diff --git a/apps/open-swe/src/graphs/planner/nodes/take-action.ts b/apps/open-swe/src/graphs/planner/nodes/take-action.ts
index 42f1f953..767fe268 100644
--- a/apps/open-swe/src/graphs/planner/nodes/take-action.ts
+++ b/apps/open-swe/src/graphs/planner/nodes/take-action.ts
@@ -128,7 +128,10 @@ export async function takeActions(
       }
 
       if (!result) {
-        result = toolCallStatus;
+        result =
+          toolCallStatus === "success"
+            ? "Tool call returned no result"
+            : "Tool call failed";
       }
     } catch (e) {
       toolCallStatus = "error";
diff --git a/apps/open-swe/src/graphs/programmer/nodes/take-action.ts b/apps/open-swe/src/graphs/programmer/nodes/take-action.ts
index fc6472b0..6ce641a7 100644
--- a/apps/open-swe/src/graphs/programmer/nodes/take-action.ts
+++ b/apps/open-swe/src/graphs/programmer/nodes/take-action.ts
@@ -124,7 +124,10 @@ export async function takeAction(
       }
 
       if (!result) {
-        result = toolCallStatus;
+        result =
+          toolCallStatus === "success"
+            ? "Tool call returned no result"
+            : "Tool call failed";
       }
     } catch (e) {
       toolCallStatus = "error";
diff --git a/apps/open-swe/src/graphs/reviewer/nodes/take-review-action.ts b/apps/open-swe/src/graphs/reviewer/nodes/take-review-action.ts
index cc6629dc..d0bccc49 100644
--- a/apps/open-swe/src/graphs/reviewer/nodes/take-review-action.ts
+++ b/apps/open-swe/src/graphs/reviewer/nodes/take-review-action.ts
@@ -110,7 +110,10 @@ export async function takeReviewerActions(
       toolCallStatus = toolResult.status;
 
       if (!result) {
-        result = toolCallStatus;
+        result =
+          toolCallStatus === "success"
+            ? "Tool call returned no result"
+            : "Tool call failed";
       }
     } catch (e) {
       toolCallStatus = "error";