diff --git a/src/extensions/core/groupNodeManage.ts b/src/extensions/core/groupNodeManage.ts
index 0373715b7..bcff37170 100644
--- a/src/extensions/core/groupNodeManage.ts
+++ b/src/extensions/core/groupNodeManage.ts
@@ -340,7 +340,10 @@ export class ManageGroupDialog extends ComfyDialog<HTMLDialogElement> {
     return !!outputs.length
   }
 
-  override show(type?: string): void {
+  override show(groupNodeType?: string | HTMLElement | HTMLElement[]): void {
+    // Extract string type - this method repurposes the show signature
+    const nodeType =
+      typeof groupNodeType === 'string' ? groupNodeType : undefined
     const groupNodes = Object.keys(app.rootGraph.extra?.groupNodes ?? {}).sort(
       (a, b) => a.localeCompare(b)
     )
@@ -392,7 +395,7 @@ export class ManageGroupDialog extends ComfyDialog<HTMLDialogElement> {
           groupNodes.map((g) =>
             $el('option', {
               textContent: g,
-              selected: `${PREFIX}${SEPARATOR}${g}` === type,
+              selected: `${PREFIX}${SEPARATOR}${g}` === nodeType,
               value: g
             })
           )
@@ -551,8 +554,8 @@ export class ManageGroupDialog extends ComfyDialog<HTMLDialogElement> {
 
     this.element.replaceChildren(outer)
     this.changeGroup(
-      type
-        ? (groupNodes.find((g) => `${PREFIX}${SEPARATOR}${g}` === type) ??
+      nodeType
+        ? (groupNodes.find((g) => `${PREFIX}${SEPARATOR}${g}` === nodeType) ??
             groupNodes[0])
         : groupNodes[0]
     )
diff --git a/src/scripts/ui/components/asyncDialog.ts b/src/scripts/ui/components/asyncDialog.ts
index 1da1a5a4e..7f77a15d1 100644
--- a/src/scripts/ui/components/asyncDialog.ts
+++ b/src/scripts/ui/components/asyncDialog.ts
@@ -1,28 +1,28 @@
 import { $el } from '../../ui'
 import { ComfyDialog } from '../dialog'
 
-export class ComfyAsyncDialog extends ComfyDialog<HTMLDialogElement> {
-  // @ts-expect-error fixme ts strict error
-  #resolve: (value: any) => void
+type DialogAction<T> = string | { value?: T; text: string }
 
-  constructor(actions?: Array<string | { value?: any; text: string }>) {
+export class ComfyAsyncDialog<
+  T = string | null
+> extends ComfyDialog<HTMLDialogElement> {
+  #resolve!: (value: T | null) => void
+
+  constructor(actions?: Array<DialogAction<T>>) {
     super(
       'dialog.comfy-dialog.comfyui-dialog',
-      // @ts-expect-error fixme ts strict error
       actions?.map((opt) => {
-        if (typeof opt === 'string') {
-          opt = { text: opt }
-        }
+        const action = typeof opt === 'string' ? { text: opt } : opt
         return $el('button.comfyui-button', {
           type: 'button',
-          textContent: opt.text,
-          onclick: () => this.close(opt.value ?? opt.text)
-        })
+          textContent: action.text,
+          onclick: () => this.close((action.value ?? action.text) as T)
+        }) as HTMLButtonElement
       })
     )
   }
 
-  override show(html: string | HTMLElement | HTMLElement[]) {
+  override show(html: string | HTMLElement | HTMLElement[]): Promise<T | null> {
     this.element.addEventListener('close', () => {
       this.close()
     })
@@ -34,7 +34,7 @@ export class ComfyAsyncDialog extends ComfyDialog<HTMLDialogElement> {
     })
   }
 
-  showModal(html: string | HTMLElement | HTMLElement[]) {
+  showModal(html: string | HTMLElement | HTMLElement[]): Promise<T | null> {
     this.element.addEventListener('close', () => {
       this.close()
     })
@@ -47,22 +47,22 @@ export class ComfyAsyncDialog extends ComfyDialog<HTMLDialogElement> {
     })
   }
 
-  override close(result = null) {
+  override close(result: T | null = null) {
     this.#resolve(result)
     this.element.close()
     super.close()
   }
 
-  static async prompt({
+  static async prompt<U = string>({
     title = null,
     message,
     actions
   }: {
     title: string | null
     message: string
-    actions: Array<string | { value?: any; text: string }>
-  }) {
-    const dialog = new ComfyAsyncDialog(actions)
+    actions: Array<DialogAction<U>>
+  }): Promise<U | null> {
+    const dialog = new ComfyAsyncDialog<U>(actions)
     const content = [$el('span', message)]
     if (title) {
       content.unshift($el('h3', title))
diff --git a/src/scripts/ui/dialog.ts b/src/scripts/ui/dialog.ts
index 23d43c2bd..12ca4a2e5 100644
--- a/src/scripts/ui/dialog.ts
+++ b/src/scripts/ui/dialog.ts
@@ -4,11 +4,10 @@ export class ComfyDialog<
   T extends HTMLElement = HTMLElement
 > extends EventTarget {
   element: T
-  // @ts-expect-error fixme ts strict error
-  textElement: HTMLElement
+  textElement!: HTMLElement
   #buttons: HTMLButtonElement[] | null
 
-  constructor(type = 'div', buttons = null) {
+  constructor(type = 'div', buttons: HTMLButtonElement[] | null = null) {
     super()
     this.#buttons = buttons
     this.element = $el(type + '.comfy-modal', { parent: document.body }, [
@@ -35,8 +34,7 @@ export class ComfyDialog<
     this.element.style.display = 'none'
   }
 
-  // @ts-expect-error fixme ts strict error
-  show(html) {
+  show(html: string | HTMLElement | HTMLElement[]): void {
     if (typeof html === 'string') {
       this.textElement.innerHTML = html
     } else {