diff --git a/src/gateway/gateway-cli-backend.live.test.ts b/src/gateway/gateway-cli-backend.live.test.ts
index b9639db67b50..4444033e7aee 100644
--- a/src/gateway/gateway-cli-backend.live.test.ts
+++ b/src/gateway/gateway-cli-backend.live.test.ts
@@ -470,6 +470,9 @@ describeLive("gateway live (cli backend)", () => {
             },
             sandbox: { mode: "off" },
           },
+          // The live requests below use agent:dev:* session keys. Declare the
+          // agent so the gateway recognizes those sessions as configured.
+          list: [{ id: "dev", default: true }],
         },
       };
       const tempConfigPath = path.join(tempDir, "openclaw.json");