diff --git a/plugins/openclaw/cli.ts b/plugins/openclaw/cli.ts
index 28e6bf8..8ec8284 100644
--- a/plugins/openclaw/cli.ts
+++ b/plugins/openclaw/cli.ts
@@ -86,9 +86,9 @@ export async function runZkr(
 
     child.stdout.on("data", (chunk: Buffer) => capture(output.stdout, chunk));
     child.stderr.on("data", (chunk: Buffer) => capture(output.stderr, chunk));
-    child.stdin.on("error", () => {
-      // Ignore EPIPE errors which occur when the child process closes its stdin before we finish writing
-    });
+    const ignoreStreamError = () => {};
+    child.stdout.on("error", ignoreStreamError);
+    child.stderr.on("error", ignoreStreamError);
     child.on("error", () => {
       fail(false);
     });
diff --git a/src/self_improve.rs b/src/self_improve.rs
index 8c2b1f5..911f324 100644
--- a/src/self_improve.rs
+++ b/src/self_improve.rs
@@ -164,6 +164,19 @@ mod tests {
         assert!(augmented.contains("isolate IO in tests"));
     }
 
+    #[test]
+    fn augment_with_no_lessons_returns_base() {
+        let tmp = tempfile::tempdir().unwrap();
+        let db = MemoryDb::open(tmp.path().join("memory.db")).unwrap();
+        let (tenant_id, person_id) = test_ids();
+        let improve = SelfImprove::new(db, tenant_id, person_id);
+
+        let augmented = improve
+            .augment("testing", "You are a helpful agent.")
+            .unwrap();
+        assert_eq!(augmented, "You are a helpful agent.");
+    }
+
     #[test]
     fn deduplicates_lessons_across_queries() {
         let tmp = tempfile::tempdir().unwrap();