fix: improve type safety in type definitions (#7337)

## Summary

- Replace `any` types with proper TypeScript types in core type
definitions
- Add generics to `SettingParams`, `setting.get<T>()`, and
`setting.set<T>()` for type-safe setting access
- Add `NodeExecutionOutput` interface for `onExecuted` callback
- Change function parameters from `any` to `unknown` where appropriate

## Type Research

Performed GitHub code search across custom node repositories to
understand actual usage patterns:

**`onExecuted` output properties** (used in rgthree-comfy,
ComfyUI-KJNodes, ComfyUI-ExLlama-Nodes, comfy_mtb, etc.):
- `output.text` - string or string array for text display nodes
- `output.images`, `output.audio`, `output.video` - media outputs
- `output.ui.items` - complex debug/preview data with `input`, `text`,
`b64_images`

**`extensionManager.setting.get/set`** (used in ComfyUI-Crystools,
ComfyUI-Copilot, etc.):
- Returns various types (boolean, number, string, objects)
- Now uses generics: `setting.get<boolean>('MyExt.Setting')`

**`ComfyExtension` custom properties** (used in rgthree-comfy,
ComfyUI-Manager):
- `aboutPageBadges`, `commands`, custom methods
- Kept as `any` index signature since extensions add arbitrary
properties

## Changes

| File | Change |
|------|--------|
| `extensionTypes.ts` | Generic `setting.get<T>()` and
`setting.set<T>()`, typed Toast options |
| `litegraph-augmentation.d.ts` | `onExecuted(output:
NodeExecutionOutput)` |
| `metadataTypes.ts` | GLTF index signatures `any` → `unknown` |
| `apiSchema.ts` | New `NodeExecutionOutput` interface |
| `settings/types.ts` | `SettingOnChange<T>`, `SettingMigration<T>`,
`SettingParams<TValue>` |
| `nodeDefSchema.ts` | `validateComfyNodeDef(data: unknown)` |
| `workflowSchema.ts` | `isSubgraphDefinition(obj: unknown)` |
| `telemetry/types.ts` | `checkForCompletedTopup(events: AuditLog[])` |

## Test plan

- [x] `pnpm typecheck` passes
- [x] `pnpm test:unit` passes (3732 tests)
- [x] `pnpm lint` passes

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-7337-fix-improve-type-safety-in-type-definitions-2c66d73d365081bdbc30e916cac607d6)
by [Unito](https://www.unito.io)

src/composables/maskeditor/useToolManager.ts

@@ -22,10 +22,10 @@ export function useToolManager(
   const coordinateTransform = useCoordinateTransform()
 
   const brushDrawing = useBrushDrawing({
-    useDominantAxis: app.extensionManager.setting.get(
+    useDominantAxis: app.extensionManager.setting.get<boolean>(
       'Comfy.MaskEditor.UseDominantAxis'
     ),
-    brushAdjustmentSpeed: app.extensionManager.setting.get(
+    brushAdjustmentSpeed: app.extensionManager.setting.get<number>(
       'Comfy.MaskEditor.BrushAdjustmentSpeed'
     )
   })

src/extensions/core/previewAny.ts

@@ -74,7 +74,8 @@ useExtensionService().registerExtension({
           this.widgets?.filter((w) => w.name === 'preview') ?? []
 
         for (const previewWidget of previewWidgets) {
-          previewWidget.value = message.text[0]
+          const text = message.text ?? ''
+          previewWidget.value = Array.isArray(text) ? (text[0] ?? '') : text
         }
       }
     }

src/platform/settings/constants/coreSettings.ts

@@ -602,10 +602,12 @@ export const CORE_SETTINGS: SettingParams[] = [
     defaultValue: [] as Keybinding[],
     versionAdded: '1.3.7',
     versionModified: '1.7.3',
-    migrateDeprecatedValue: (value: any[]) => {
+    migrateDeprecatedValue: (
+      value: (Keybinding & { targetSelector?: string })[]
+    ) => {
       return value.map((keybinding) => {
-        if (keybinding['targetSelector'] === '#graph-canvas') {
-          keybinding['targetElementId'] = 'graph-canvas-container'
+        if (keybinding.targetSelector === '#graph-canvas') {
+          keybinding.targetElementId = 'graph-canvas-container'
         }
         return keybinding
       })
@@ -780,7 +782,7 @@ export const CORE_SETTINGS: SettingParams[] = [
     tooltip: 'Server config values used for frontend display only',
     type: 'hidden',
     // Mapping from server config id to value.
-    defaultValue: {} as Record<string, any>,
+    defaultValue: {} as Record<string, unknown>,
     versionAdded: '1.4.8'
   },
   {

src/platform/settings/settingStore.ts

@@ -117,9 +117,10 @@ export const useSettingStore = defineStore('setting', () => {
       return versionedDefault
     }
 
-    return typeof param.defaultValue === 'function'
-      ? param.defaultValue()
-      : param.defaultValue
+    const defaultValue = param.defaultValue
+    return typeof defaultValue === 'function'
+      ? (defaultValue as () => Settings[K])()
+      : defaultValue
   }
 
   function getVersionedDefaultValue<

src/platform/settings/types.ts

@@ -16,21 +16,21 @@ type SettingInputType =
 
 type SettingCustomRenderer = (
   name: string,
-  setter: (v: any) => void,
-  value: any,
-  attrs: any
+  setter: (v: unknown) => void,
+  value: unknown,
+  attrs?: Record<string, unknown>
 ) => HTMLElement
 
 export interface SettingOption {
   text: string
-  value?: any
+  value?: string | number
 }
 
-export interface SettingParams<TValue = unknown> extends FormItem {
+export interface SettingParams<TValue = any> extends FormItem {
   id: keyof Settings
-  defaultValue: any | (() => any)
+  defaultValue: TValue | (() => TValue)
   defaultsByInstallVersion?: Record<`${number}.${number}.${number}`, TValue>
-  onChange?: (newValue: any, oldValue?: any) => void
+  onChange?: (newValue: TValue, oldValue?: TValue) => void
   // By default category is id.split('.'). However, changing id to assign
   // new category has poor backward compatibility. Use this field to overwrite
   // default category from id.
@@ -38,8 +38,7 @@ export interface SettingParams<TValue = unknown> extends FormItem {
   category?: string[]
   experimental?: boolean
   deprecated?: boolean
-  // Deprecated values are mapped to new values.
-  migrateDeprecatedValue?: (value: any) => any
+  migrateDeprecatedValue?: (value: TValue) => TValue
   // Version of the setting when it was added
   versionAdded?: string
   // Version of the setting when it was last modified
@@ -57,7 +56,7 @@ export interface FormItem {
   name: string
   type: SettingInputType | SettingCustomRenderer
   tooltip?: string
-  attrs?: Record<string, any>
+  attrs?: Record<string, unknown>
   options?: Array<string | SettingOption>
 }
 

src/platform/telemetry/types.ts

@@ -12,6 +12,8 @@
  * 3. Check dist/assets/*.js files contain no tracking code
  */
 
+import type { AuditLog } from '@/services/customerEventsService'
+
 /**
  * Authentication metadata for sign-up tracking
  */
@@ -276,7 +278,7 @@ export interface TelemetryProvider {
 
   // Credit top-up tracking (composition with internal utilities)
   startTopupTracking(): void
-  checkForCompletedTopup(events: any[] | undefined | null): boolean
+  checkForCompletedTopup(events: AuditLog[] | undefined | null): boolean
   clearTopupTracking(): void
 
   // Survey flow events

src/platform/workflow/validation/schemas/workflowSchema.ts

@@ -466,14 +466,14 @@ type SubgraphDefinition = z.infer<typeof zSubgraphDefinition>
  * Type guard to check if an object is a SubgraphDefinition.
  * This helps TypeScript understand the type when z.lazy() breaks inference.
  */
-export function isSubgraphDefinition(obj: any): obj is SubgraphDefinition {
+export function isSubgraphDefinition(obj: unknown): obj is SubgraphDefinition {
   return (
-    obj &&
+    obj !== null &&
     typeof obj === 'object' &&
     'id' in obj &&
     'name' in obj &&
     'nodes' in obj &&
-    Array.isArray(obj.nodes) &&
+    Array.isArray((obj as SubgraphDefinition).nodes) &&
     'inputNode' in obj &&
     'outputNode' in obj
   )
@@ -514,6 +514,7 @@ export async function validateComfyWorkflow(
  */
 const zNodeInputValue = z.union([
   // For widget values (can be any type)
+
   z.any(),
   // For node links [nodeId, slotIndex]
   z.tuple([zNodeId, zSlotIndex])

src/schemas/apiSchema.ts

@@ -28,10 +28,13 @@ const zOutputs = z
     audio: z.array(zResultItem).optional(),
     images: z.array(zResultItem).optional(),
     video: z.array(zResultItem).optional(),
-    animated: z.array(z.boolean()).optional()
+    animated: z.array(z.boolean()).optional(),
+    text: z.union([z.string(), z.array(z.string())]).optional()
   })
   .passthrough()
 
+export type NodeExecutionOutput = z.infer<typeof zOutputs>
+
 // WS messages
 const zStatusWsMessageStatus = z.object({
   exec_info: z.object({

src/schemas/nodeDefSchema.ts

@@ -267,7 +267,7 @@ export type ComboInputSpecV2 = z.infer<typeof zComboInputSpecV2>
 export type InputSpec = z.infer<typeof zInputSpec>
 
 export function validateComfyNodeDef(
-  data: any,
+  data: unknown,
   onError: (error: string) => void = console.warn
 ): ComfyNodeDef | null {
   const result = zComfyNodeDef.safeParse(data)

src/types/extensionTypes.ts

@@ -67,7 +67,7 @@ export interface ToastMessageOptions {
   /**
    * Detail content of the message.
    */
-  detail?: any | undefined
+  detail?: string
   /**
    * Whether the message can be closed manually using the close icon.
    * @defaultValue true
@@ -84,11 +84,12 @@ export interface ToastMessageOptions {
   /**
    * Style class of the message.
    */
-  styleClass?: any
+  styleClass?: string | string[] | Record<string, boolean>
   /**
    * Style class of the content.
+   * Matches PrimeVue Toast API which accepts Vue class bindings.
    */
-  contentStyleClass?: any
+  contentStyleClass?: string | string[] | Record<string, boolean>
 }
 
 export type ToastManager = {
@@ -107,8 +108,8 @@ export interface ExtensionManager {
   dialog: ReturnType<typeof useDialogService>
   command: CommandManager
   setting: {
-    get: (id: string) => any
-    set: (id: string, value: any) => void
+    get: <T = unknown>(id: string) => T | undefined
+    set: <T = unknown>(id: string, value: T) => void
   }
 }
 

src/types/litegraph-augmentation.d.ts

@@ -7,6 +7,7 @@ import type {
 } from '@/lib/litegraph/src/litegraph'
 import type { IBaseWidget } from '@/lib/litegraph/src/types/widgets'
 import type { NodeId } from '@/platform/workflow/validation/schemas/workflowSchema'
+import type { NodeExecutionOutput } from '@/schemas/apiSchema'
 import type { ComfyNodeDef as ComfyNodeDefV2 } from '@/schemas/nodeDef/nodeDefSchemaV2'
 import type { ComfyNodeDef as ComfyNodeDefV1 } from '@/schemas/nodeDefSchema'
 import type { DOMWidget, DOMWidgetOptions } from '@/scripts/domWidget'
@@ -94,7 +95,12 @@ declare module '@/lib/litegraph/src/litegraph' {
      */
     onAfterGraphConfigured?(): void
     onGraphConfigured?(): void
-    onExecuted?(output: any): void
+    /**
+     * Callback fired when node execution completes.
+     * Output contains known media properties (images, audio, video) plus
+     * arbitrary node-specific outputs (text, ui, custom properties).
+     */
+    onExecuted?(output: NodeExecutionOutput): void
     onNodeCreated?(this: LGraphNode): void
     /** @deprecated groupNode */
     setInnerNodes?(nodes: LGraphNode[]): void

src/types/metadataTypes.ts

@@ -69,15 +69,15 @@ export type GltfChunkHeader = {
 type GltfExtras = {
   workflow?: string | object
   prompt?: string | object
-  [key: string]: any
+  [key: string]: unknown
 }
 
 export type GltfJsonData = {
   asset?: {
     extras?: GltfExtras
-    [key: string]: any
+    [key: string]: unknown
   }
-  [key: string]: any
+  [key: string]: unknown
 }
 
 /**