diff --git a/eslint.config.mjs b/eslint.config.mjs
index 7e126751d..387504707 100644
--- a/eslint.config.mjs
+++ b/eslint.config.mjs
@@ -56,6 +56,15 @@ export default defineConfig([
             "no-unmodified-loop-condition": "error",
             "no-unreachable-loop": "error",
             "arrow-body-style": ["error", "as-needed"],
+            "block-scoped-var": "error",
+            // some day...
+            // "camelcase": ["error", {
+            //     properties: "never", //schemas
+            //     ignoreImports: true
+            // }],
+            // "consistent-return": "error",
+            "default-case": "error",
+            "default-case-last": "error",
             // unsure what the defaults are here, but we want them to error
             "for-direction": "error",
             "constructor-super": "error",
diff --git a/src/gateway/listener/listener.ts b/src/gateway/listener/listener.ts
index c3f85e01a..70571e5fa 100644
--- a/src/gateway/listener/listener.ts
+++ b/src/gateway/listener/listener.ts
@@ -231,6 +231,9 @@ async function consume(this: WebSocket, opts: EventOpts) {
             });
             this.close(CLOSECODES.Invalid_session); // TODO: this is deprecated?
             return;
+        default:
+            // no special treatment
+            break;
     }
 
     // subscription managment
@@ -290,6 +293,9 @@ async function consume(this: WebSocket, opts: EventOpts) {
             }
             break;
         }
+        default:
+            // no special treatment
+            break;
     }
 
     // permission checking
diff --git a/src/util/util/lambert-server/check.ts b/src/util/util/lambert-server/check.ts
index 561a584ce..5ec727619 100644
--- a/src/util/util/lambert-server/check.ts
+++ b/src/util/util/lambert-server/check.ts
@@ -50,6 +50,8 @@ export function instanceOf(type: any, value: any, { path = "", optional = false
         case Object:
             if (typeof value === "object" && value !== null) return true;
             throw `${path} must be a object`;
+        default:
+            break;
     }
 
     if (typeof type === "object") {