diff --git a/tests/unit/t23-t24-fallback-resilience.test.ts b/tests/unit/t23-t24-fallback-resilience.test.ts
index f0f51d30a2..22f9c5d7da 100644
--- a/tests/unit/t23-t24-fallback-resilience.test.ts
+++ b/tests/unit/t23-t24-fallback-resilience.test.ts
@@ -148,6 +148,10 @@ test("T24: all inactive accounts return 503 service_unavailable (not 406)", asyn
 
   assert.equal(result.status, 503);
   const body = (await result.json()) as any;
+  // isModelAvailable always false means every target is skipped by the
+  // pre-dispatch filter with zero dispatch attempts — the more precise
+  // ALL_TARGETS_SKIPPED classification, not ALL_ACCOUNTS_INACTIVE (which
+  // implies targets were attempted and their accounts found inactive).
   assert.equal(body.error?.code, "ALL_TARGETS_SKIPPED");
 });