diff --git a/src/main.ts b/src/main.ts
index cb075663..cf6adcf1 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -12,7 +12,7 @@ export default class CodexPanelPlugin extends Plugin {
   settings: CodexPanelSettings = DEFAULT_SETTINGS;
   vaultPath = "";
 
-  async onload(): Promise<void> {
+  override async onload(): Promise<void> {
     this.vaultPath = getVaultPath(this.app);
     await this.loadSettings();
 
diff --git a/src/panel/turn-diff-view.ts b/src/panel/turn-diff-view.ts
index c1a301a2..01696ea4 100644
--- a/src/panel/turn-diff-view.ts
+++ b/src/panel/turn-diff-view.ts
@@ -14,23 +14,23 @@ export class CodexTurnDiffView extends ItemView {
   private metadata: PersistedTurnDiffViewState | null = null;
   private payload: TurnDiffViewState | null = null;
 
-  getViewType(): string {
+  override getViewType(): string {
     return VIEW_TYPE_CODEX_TURN_DIFF;
   }
 
-  getDisplayText(): string {
+  override getDisplayText(): string {
     return "Codex turn diff";
   }
 
-  getIcon(): string {
+  override getIcon(): string {
     return "file-diff";
   }
 
-  getState(): Record<string, unknown> {
+  override getState(): Record<string, unknown> {
     return this.metadata ? { ...this.metadata } : {};
   }
 
-  async setState(state: unknown, result: ViewStateResult): Promise<void> {
+  override async setState(state: unknown, result: ViewStateResult): Promise<void> {
     await super.setState(state, result);
     this.metadata = isPersistedTurnDiffViewState(state)
       ? {
@@ -44,7 +44,7 @@ export class CodexTurnDiffView extends ItemView {
     this.render();
   }
 
-  async onOpen(): Promise<void> {
+  override async onOpen(): Promise<void> {
     this.render();
   }
 
diff --git a/src/panel/view.ts b/src/panel/view.ts
index ea0b2342..05b0a90a 100644
--- a/src/panel/view.ts
+++ b/src/panel/view.ts
@@ -214,15 +214,15 @@ export class CodexPanelView extends ItemView {
     });
   }
 
-  getViewType(): string {
+  override getViewType(): string {
     return VIEW_TYPE_CODEX_PANEL;
   }
 
-  getDisplayText(): string {
+  override getDisplayText(): string {
     return codexPanelDisplayTitle(this.state.activeThreadId, this.state.listedThreads);
   }
 
-  getIcon(): string {
+  override getIcon(): string {
     return "bot-message-square";
   }
 
@@ -238,7 +238,7 @@ export class CodexPanelView extends ItemView {
     await this.resumeThread(threadId);
   }
 
-  async onOpen(): Promise<void> {
+  override async onOpen(): Promise<void> {
     this.composerController.registerNoteIndexInvalidation((eventRef) => {
       this.registerEvent(eventRef);
     });
@@ -249,7 +249,7 @@ export class CodexPanelView extends ItemView {
     await this.ensureConnected();
   }
 
-  async onClose(): Promise<void> {
+  override async onClose(): Promise<void> {
     if (this.scheduledRenderTimer !== null) {
       this.containerEl.win.clearTimeout(this.scheduledRenderTimer);
       this.scheduledRenderTimer = null;
diff --git a/tsconfig.json b/tsconfig.json
index a712d5da..a749fdc0 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -7,7 +7,10 @@
     "moduleResolution": "Bundler",
     "allowSyntheticDefaultImports": true,
     "resolveJsonModule": true,
+    "verbatimModuleSyntax": true,
+    "noUncheckedSideEffectImports": true,
     "strict": true,
+    "noImplicitOverride": true,
     "skipLibCheck": true,
     "forceConsistentCasingInFileNames": true,
     "isolatedModules": true,