diff --git a/bun.lock b/bun.lock
index 9ead317..c0936b8 100644
--- a/bun.lock
+++ b/bun.lock
@@ -18,6 +18,7 @@
         "@effect/platform-browser": "^0.56.2",
         "@radix-ui/themes": "^3.2.0",
         "@reffuse/extension-lazyref": "workspace:*",
+        "@reffuse/extension-query": "workspace:*",
         "@typed/id": "^0.17.1",
         "@typed/lazy-ref": "^0.3.3",
         "effect": "^3.13.2",
@@ -55,7 +56,7 @@
         "@types/react": "^19.0.0",
         "effect": "^3.13.0",
         "react": "^19.0.0",
-        "reffuse": "^0.1.1",
+        "reffuse": "^0.1.2",
       },
     },
     "packages/extension-query": {
diff --git a/packages/example/package.json b/packages/example/package.json
index e1a234e..6d93aba 100644
--- a/packages/example/package.json
+++ b/packages/example/package.json
@@ -33,6 +33,7 @@
     "@effect/platform-browser": "^0.56.2",
     "@radix-ui/themes": "^3.2.0",
     "@reffuse/extension-lazyref": "workspace:*",
+    "@reffuse/extension-query": "workspace:*",
     "@typed/id": "^0.17.1",
     "@typed/lazy-ref": "^0.3.3",
     "effect": "^3.13.2",
diff --git a/packages/example/src/reffuse.ts b/packages/example/src/reffuse.ts
index 0aefd92..c5d008f 100644
--- a/packages/example/src/reffuse.ts
+++ b/packages/example/src/reffuse.ts
@@ -1,6 +1,7 @@
 import { HttpClient } from "@effect/platform"
 import { Clipboard, Geolocation, Permissions } from "@effect/platform-browser"
 import { LazyRefExtension } from "@reffuse/extension-lazyref"
+import { QueryExtension } from "@reffuse/extension-query"
 import { Reffuse, ReffuseContext } from "reffuse"
 
 
@@ -13,6 +14,7 @@ export const GlobalContext = ReffuseContext.make<
 
 export class GlobalReffuse extends Reffuse.Reffuse.pipe(
     Reffuse.withExtension(LazyRefExtension),
+    Reffuse.withExtension(QueryExtension),
     Reffuse.withContexts(GlobalContext),
 ) {}
 
diff --git a/packages/example/src/routeTree.gen.ts b/packages/example/src/routeTree.gen.ts
index 98b4224..20f3fba 100644
--- a/packages/example/src/routeTree.gen.ts
+++ b/packages/example/src/routeTree.gen.ts
@@ -13,6 +13,7 @@
 import { Route as rootRoute } from './routes/__root'
 import { Route as TimeImport } from './routes/time'
 import { Route as TestsImport } from './routes/tests'
+import { Route as QueryImport } from './routes/query'
 import { Route as PromiseImport } from './routes/promise'
 import { Route as LazyrefImport } from './routes/lazyref'
 import { Route as CountImport } from './routes/count'
@@ -33,6 +34,12 @@ const TestsRoute = TestsImport.update({
   getParentRoute: () => rootRoute,
 } as any)
 
+const QueryRoute = QueryImport.update({
+  id: '/query',
+  path: '/query',
+  getParentRoute: () => rootRoute,
+} as any)
+
 const PromiseRoute = PromiseImport.update({
   id: '/promise',
   path: '/promise',
@@ -102,6 +109,13 @@ declare module '@tanstack/react-router' {
       preLoaderRoute: typeof PromiseImport
       parentRoute: typeof rootRoute
     }
+    '/query': {
+      id: '/query'
+      path: '/query'
+      fullPath: '/query'
+      preLoaderRoute: typeof QueryImport
+      parentRoute: typeof rootRoute
+    }
     '/tests': {
       id: '/tests'
       path: '/tests'
@@ -127,6 +141,7 @@ export interface FileRoutesByFullPath {
   '/count': typeof CountRoute
   '/lazyref': typeof LazyrefRoute
   '/promise': typeof PromiseRoute
+  '/query': typeof QueryRoute
   '/tests': typeof TestsRoute
   '/time': typeof TimeRoute
 }
@@ -137,6 +152,7 @@ export interface FileRoutesByTo {
   '/count': typeof CountRoute
   '/lazyref': typeof LazyrefRoute
   '/promise': typeof PromiseRoute
+  '/query': typeof QueryRoute
   '/tests': typeof TestsRoute
   '/time': typeof TimeRoute
 }
@@ -148,6 +164,7 @@ export interface FileRoutesById {
   '/count': typeof CountRoute
   '/lazyref': typeof LazyrefRoute
   '/promise': typeof PromiseRoute
+  '/query': typeof QueryRoute
   '/tests': typeof TestsRoute
   '/time': typeof TimeRoute
 }
@@ -160,10 +177,19 @@ export interface FileRouteTypes {
     | '/count'
     | '/lazyref'
     | '/promise'
+    | '/query'
     | '/tests'
     | '/time'
   fileRoutesByTo: FileRoutesByTo
-  to: '/' | '/blank' | '/count' | '/lazyref' | '/promise' | '/tests' | '/time'
+  to:
+    | '/'
+    | '/blank'
+    | '/count'
+    | '/lazyref'
+    | '/promise'
+    | '/query'
+    | '/tests'
+    | '/time'
   id:
     | '__root__'
     | '/'
@@ -171,6 +197,7 @@ export interface FileRouteTypes {
     | '/count'
     | '/lazyref'
     | '/promise'
+    | '/query'
     | '/tests'
     | '/time'
   fileRoutesById: FileRoutesById
@@ -182,6 +209,7 @@ export interface RootRouteChildren {
   CountRoute: typeof CountRoute
   LazyrefRoute: typeof LazyrefRoute
   PromiseRoute: typeof PromiseRoute
+  QueryRoute: typeof QueryRoute
   TestsRoute: typeof TestsRoute
   TimeRoute: typeof TimeRoute
 }
@@ -192,6 +220,7 @@ const rootRouteChildren: RootRouteChildren = {
   CountRoute: CountRoute,
   LazyrefRoute: LazyrefRoute,
   PromiseRoute: PromiseRoute,
+  QueryRoute: QueryRoute,
   TestsRoute: TestsRoute,
   TimeRoute: TimeRoute,
 }
@@ -211,6 +240,7 @@ export const routeTree = rootRoute
         "/count",
         "/lazyref",
         "/promise",
+        "/query",
         "/tests",
         "/time"
       ]
@@ -230,6 +260,9 @@ export const routeTree = rootRoute
     "/promise": {
       "filePath": "promise.tsx"
     },
+    "/query": {
+      "filePath": "query.tsx"
+    },
     "/tests": {
       "filePath": "tests.tsx"
     },
diff --git a/packages/example/src/routes/query.tsx b/packages/example/src/routes/query.tsx
new file mode 100644
index 0000000..4d58212
--- /dev/null
+++ b/packages/example/src/routes/query.tsx
@@ -0,0 +1,40 @@
+import { R } from "@/reffuse"
+import { HttpClient } from "@effect/platform"
+import { Container, Text } from "@radix-ui/themes"
+import { createFileRoute } from "@tanstack/react-router"
+import * as AsyncData from "@typed/async-data"
+import { Effect, Schema } from "effect"
+
+
+export const Route = createFileRoute("/query")({
+    component: RouteComponent
+})
+
+
+const Result = Schema.Tuple(Schema.String)
+
+function RouteComponent() {
+    const { state } = R.useQuery({
+        effect: () => HttpClient.get("https://www.uuidtools.com/api/generate/v4").pipe(
+            HttpClient.withTracerPropagation(false),
+            Effect.flatMap(res => res.json),
+            Effect.flatMap(Schema.decodeUnknown(Result)),
+        ),
+        deps: [],
+    })
+
+    return (
+        <Container>
+            <Text>
+                {AsyncData.match(state, {
+                    NoData: () => "No data yet",
+                    Loading: () => "Loading...",
+                    Success: (value, { isRefreshing, isOptimistic }) =>
+                        `Value: ${value} ${isRefreshing ? "(refreshing)" : ""} ${isOptimistic ? "(optimistic)" : ""}`,
+                    Failure: (cause, { isRefreshing }) =>
+                        `Error: ${cause} ${isRefreshing ? "(refreshing)" : ""}`,
+                })}
+            </Text>
+        </Container>
+    )
+}
diff --git a/packages/extension-query/src/index.ts b/packages/extension-query/src/index.ts
index ebd3518..2694a64 100644
--- a/packages/extension-query/src/index.ts
+++ b/packages/extension-query/src/index.ts
@@ -1,12 +1,12 @@
 import * as AsyncData from "@typed/async-data"
-import { Effect } from "effect"
+import { Effect, Scope } from "effect"
 import * as React from "react"
 import { useState } from "react"
 import { ReffuseExtension, type ReffuseHelpers } from "reffuse"
 
 
 export interface UseQueryProps<A, E, R> {
-    effect(): Effect.Effect<A, E, R>
+    effect(): Effect.Effect<A, E, R | Scope.Scope>
     readonly deps?: React.DependencyList
 }