diff --git a/.oxlintrc.json b/.oxlintrc.json
index 752bd621d0d..51ef3fbac41 100644
--- a/.oxlintrc.json
+++ b/.oxlintrc.json
@@ -65,6 +65,10 @@
     "typescript/no-unnecessary-type-parameters": "error",
     "typescript/no-unsafe-type-assertion": "off",
     "typescript/no-useless-default-assignment": "error",
+    "typescript/switch-exhaustiveness-check": [
+      "error",
+      { "considerDefaultExhaustiveForUnions": true }
+    ],
     "typescript/prefer-return-this-type": "error",
     "typescript/prefer-find": "error",
     "typescript/prefer-function-type": "error",
diff --git a/extensions/diagnostics-otel/src/service.ts b/extensions/diagnostics-otel/src/service.ts
index 55b55621225..ca625cd1181 100644
--- a/extensions/diagnostics-otel/src/service.ts
+++ b/extensions/diagnostics-otel/src/service.ts
@@ -648,6 +648,11 @@ export function createDiagnosticsOtelService(): OpenClawPluginService {
             case "diagnostic.heartbeat":
               recordHeartbeat(evt);
               return;
+            case "tool.loop":
+            case "diagnostic.memory.sample":
+            case "diagnostic.memory.pressure":
+            case "payload.large":
+              return;
           }
         } catch (err) {
           ctx.logger.error(
diff --git a/extensions/memory-wiki/src/query.ts b/extensions/memory-wiki/src/query.ts
index 42cc8cecf48..a86f77acf64 100644
--- a/extensions/memory-wiki/src/query.ts
+++ b/extensions/memory-wiki/src/query.ts
@@ -267,6 +267,8 @@ function scoreClaimMatch(params: {
     case "unknown":
       score -= 4;
       break;
+    case undefined:
+      break;
   }
   score += isClaimContestedStatus(params.status) ? -6 : 4;
   return score;
diff --git a/extensions/voice-call/src/manager/events.ts b/extensions/voice-call/src/manager/events.ts
index f15fbf0ee8f..230641704fd 100644
--- a/extensions/voice-call/src/manager/events.ts
+++ b/extensions/voice-call/src/manager/events.ts
@@ -229,6 +229,10 @@ export function processEvent(ctx: EventContext, event: NormalizedEvent): void {
       transitionState(call, "listening");
       break;
 
+    case "call.silence":
+    case "call.dtmf":
+      break;
+
     case "call.ended":
       finalizeCall({
         ctx,
diff --git a/extensions/voice-call/src/media-stream.ts b/extensions/voice-call/src/media-stream.ts
index 87320077e1a..39128a9814e 100644
--- a/extensions/voice-call/src/media-stream.ts
+++ b/extensions/voice-call/src/media-stream.ts
@@ -233,6 +233,10 @@ export class MediaStreamHandler {
               session = null;
             }
             break;
+
+          case "clear":
+          case "mark":
+            break;
         }
       } catch (error) {
         console.error("[MediaStream] Error processing message:", error);
diff --git a/src/plugin-sdk/provider-stream-shared.ts b/src/plugin-sdk/provider-stream-shared.ts
index 18858e726a7..9ebf3733574 100644
--- a/src/plugin-sdk/provider-stream-shared.ts
+++ b/src/plugin-sdk/provider-stream-shared.ts
@@ -192,6 +192,8 @@ export function resolveGoogleGemini3ThinkingLevel(params: {
       case "max":
       case "xhigh":
         return "HIGH";
+      case undefined:
+        break;
     }
     if (typeof params.thinkingBudget === "number") {
       return params.thinkingBudget <= 2048 ? "LOW" : "HIGH";
@@ -214,6 +216,8 @@ export function resolveGoogleGemini3ThinkingLevel(params: {
     case "max":
     case "xhigh":
       return "HIGH";
+    case undefined:
+      break;
   }
   if (typeof params.thinkingBudget !== "number") {
     return undefined;
diff --git a/test/scripts/oxlint-config.test.ts b/test/scripts/oxlint-config.test.ts
index e382665f45e..d70d72f8e42 100644
--- a/test/scripts/oxlint-config.test.ts
+++ b/test/scripts/oxlint-config.test.ts
@@ -132,6 +132,15 @@ describe("oxlint config", () => {
     ]);
   });
 
+  it("enables exhaustive switch linting", () => {
+    const config = readJson(".oxlintrc.json") as OxlintConfig;
+
+    expect(config.rules?.["typescript/switch-exhaustiveness-check"]).toEqual([
+      "error",
+      { considerDefaultExhaustiveForUnions: true },
+    ]);
+  });
+
   it("enables clean zero-baseline lint rules", () => {
     const config = readJson(".oxlintrc.json") as OxlintConfig;
 
diff --git a/ui/src/ui/app-render.ts b/ui/src/ui/app-render.ts
index e1b89cf5c14..7a00ebd53c1 100644
--- a/ui/src/ui/app-render.ts
+++ b/ui/src/ui/app-render.ts
@@ -1158,6 +1158,10 @@ export function renderApp(state: AppViewState) {
         void loadToolsCatalog(state, agentId);
         void refreshVisibleToolsEffectiveForCurrentSession(state);
         return;
+      case "overview":
+      case "channels":
+      case "cron":
+        return;
     }
   };
   const refreshAgentsPanelSupplementalData = (panel: AppViewState["agentsPanel"]) => {
diff --git a/ui/src/ui/app-settings.ts b/ui/src/ui/app-settings.ts
index e64aeda9149..3bb4a7b7f3e 100644
--- a/ui/src/ui/app-settings.ts
+++ b/ui/src/ui/app-settings.ts
@@ -323,6 +323,10 @@ async function refreshAgentsTab(host: SettingsHost, app: SettingsAppHost) {
     case "cron":
       void loadCron(host);
       return;
+    case "overview":
+    case "tools":
+    case undefined:
+      return;
   }
 }