diff --git a/packages/script/src/runtime/types.ts b/packages/script/src/runtime/types.ts
index 9cd282bf..08c30e77 100644
--- a/packages/script/src/runtime/types.ts
+++ b/packages/script/src/runtime/types.ts
@@ -253,7 +253,7 @@ export type BuiltInRegistryScriptKey
  */
 export type RegistryScriptKey = Exclude<keyof ScriptRegistry, `${string}-npm`>
 
-type RegistryConfigInput<T> = [T] extends [true] ? Record<string, never> : T
+type RegistryConfigInput<T> = 0 extends 1 & T ? Record<string, any> : [T] extends [true] ? Record<string, never> : T
 
 export type NuxtConfigScriptRegistryEntry<T> = true | false | 'mock' | (RegistryConfigInput<T> & { trigger?: NuxtUseScriptOptionsSerializable['trigger'] | false, proxy?: boolean, bundle?: boolean, partytown?: boolean, privacy?: ProxyPrivacyInput })
 
diff --git a/test/types/types.test-d.ts b/test/types/types.test-d.ts
index 39e7f579..155f9bac 100644
--- a/test/types/types.test-d.ts
+++ b/test/types/types.test-d.ts
@@ -1,13 +1,7 @@
 import type { ModuleOptions } from '../../packages/script/src/module'
 import type { CrispApi } from '../../packages/script/src/runtime/registry/crisp'
 import type { DefaultEventName } from '../../packages/script/src/runtime/registry/google-analytics'
-import type {
-  NuxtConfigScriptRegistry,
-  NuxtUseScriptOptions,
-  RegistryScriptInput,
-  ScriptRegistry,
-  UseScriptContext,
-} from '../../packages/script/src/runtime/types'
+import type { NuxtConfigScriptRegistry, NuxtConfigScriptRegistryEntry, NuxtUseScriptOptions, RegistryScriptInput, ScriptRegistry, UseScriptContext } from '../../packages/script/src/runtime/types'
 import { describe, expectTypeOf, it } from 'vitest'
 
 describe('module options registry', () => {
@@ -78,6 +72,17 @@ describe('module options registry', () => {
     // Unknown keys fall through to the index signature (any), so custom scripts work
     expectTypeOf<Registry['my-custom-script']>().toBeAny()
   })
+
+  // Issue #700: NuxtConfigScriptRegistryEntry<any> must not collapse to Record<string, never>
+  // This happens when Nuxt's $production/$development wraps the config in DeepPartial,
+  // collapsing the interface's index signature priority and resolving all keys to `any`.
+  it('NuxtConfigScriptRegistryEntry<any> allows arbitrary properties', () => {
+    type Entry = Exclude<NuxtConfigScriptRegistryEntry<any>, boolean | 'mock'>
+    // Must not be never (would mean Record<string, never> killed the intersection)
+    expectTypeOf<Entry>().not.toBeNever()
+    // Arbitrary properties must be assignable, not `never`
+    expectTypeOf<{ matomoUrl: string, siteId: number }>().toMatchTypeOf<Entry>()
+  })
 })
 
 describe('registry api types', () => {