diff --git a/test/skill-e2e-bws.test.ts b/test/skill-e2e-bws.test.ts
index 956174117..b3dac4209 100644
--- a/test/skill-e2e-bws.test.ts
+++ b/test/skill-e2e-bws.test.ts
@@ -199,6 +199,13 @@ Report the exact output — either "READY: <path>" or "NEEDS_SETUP".`,
       fs.copyFileSync(path.join(ROOT, 'bin', script), path.join(binDir, script));
       fs.chmodSync(path.join(binDir, script), 0o755);
     }
+    // gstack-learnings-log imports $SCRIPT_DIR/../lib/jsonl-store.ts (shared
+    // injection patterns, since v1.57.5.0) — a real install always ships bin/
+    // and lib/ together, so the fixture must too. Without it the bin exits 1
+    // before writing anything and the test fails on every attempt.
+    const libDir = path.join(opDir, 'lib');
+    fs.mkdirSync(libDir, { recursive: true });
+    fs.copyFileSync(path.join(ROOT, 'lib', 'jsonl-store.ts'), path.join(libDir, 'jsonl-store.ts'));
 
     // gstack-learnings-log will create the project dir automatically via gstack-slug