diff --git a/apps/frontend/Todo.ts b/apps/frontend/Todo.ts
index c904e5a..36c5c07 100644
--- a/apps/frontend/Todo.ts
+++ b/apps/frontend/Todo.ts
@@ -2,6 +2,7 @@ import * as A from "@effect-ts-demo/core/ext/Array"
 import {
   array,
   constructor,
+  identity,
   Model,
   literal,
   NonEmptyString,
@@ -15,10 +16,12 @@ import {
   These,
   union,
   reasonableString,
+  parseStringE,
+  leafE,
 } from "@effect-ts-demo/core/ext/Schema"
 import * as Todo from "@effect-ts-demo/todo-client/Tasks"
 import { TaskId, TaskListId } from "@effect-ts-demo/todo-client/Tasks"
-import { constant, flow, identity, pipe } from "@effect-ts/core/Function"
+import { constant, flow, pipe, identity as ident } from "@effect-ts/core/Function"
 import * as O from "@effect-ts/core/Option"
 import * as ORD from "@effect-ts/core/Ord"
 import { Lens } from "@effect-ts/monocle"
@@ -151,8 +154,12 @@ const isOrder = (u: any): u is Order & NonEmptyString => u in orders
 export const Order = nonEmptyString[">>>"](
   pipe(
     identity(isOrder),
-    parser((x) => (isOrder(x) ? These.succeed(x) : These.fail("not order"))),
-    constructor((x) => (isOrder(x) ? These.succeed(x) : These.fail("not order")))
+    parser((x) =>
+      isOrder(x) ? These.succeed(x) : These.fail(leafE(parseStringE("not order")))
+    ),
+    constructor((x) =>
+      isOrder(x) ? These.succeed(x) : These.fail(leafE(parseStringE("not order")))
+    )
   )
 ) // TODO
 
@@ -162,8 +169,12 @@ const isOrderDir = (u: any): u is OrderDir & NonEmptyString => u in orders
 export const OrderDir = nonEmptyString[">>>"](
   pipe(
     identity(isOrderDir),
-    parser((x) => (isOrderDir(x) ? These.succeed(x) : These.fail("not order"))),
-    constructor((x) => (isOrderDir(x) ? These.succeed(x) : These.fail("not order")))
+    parser((x) =>
+      isOrderDir(x) ? These.succeed(x) : These.fail(leafE(parseStringE("not order")))
+    ),
+    constructor((x) =>
+      isOrderDir(x) ? These.succeed(x) : These.fail(leafE(parseStringE("not order")))
+    )
   )
 ) // TODO
 
@@ -188,7 +199,7 @@ export function filterByCategory(category: TaskView | string) {
       return A.filter((t: Todo.Task) => t.listId === "inbox")
     }
     case "all": {
-      return identity
+      return ident
     }
     default:
       return A.filter((t: Todo.Task) => t.listId === category)
diff --git a/apps/frontend/features/Tasks/FolderList/FolderList.tsx b/apps/frontend/features/Tasks/FolderList/FolderList.tsx
index 0659d17..b054143 100644
--- a/apps/frontend/features/Tasks/FolderList/FolderList.tsx
+++ b/apps/frontend/features/Tasks/FolderList/FolderList.tsx
@@ -55,7 +55,7 @@ function TLG(g: Todo.TaskListGroup) {
                     >
                       <TaskListEntry
                         {...l}
-                        title={("| -- " + l.title) as S.NonEmptyString}
+                        title={("| -- " + l.title) as S.ReasonableString}
                       />
                     </Box>
                   )}
diff --git a/apps/frontend/features/Tasks/FolderList/index.tsx b/apps/frontend/features/Tasks/FolderList/index.tsx
index e28432f..39136d8 100644
--- a/apps/frontend/features/Tasks/FolderList/index.tsx
+++ b/apps/frontend/features/Tasks/FolderList/index.tsx
@@ -57,14 +57,14 @@ const FolderListView = ({ category }: { category: O.Option<Todo.Category> }) =>
           A.map(
             ({ slug, tasks }) =>
               new TaskListView({
-                title: toUpperCaseFirst(slug) as S.NonEmptyString,
+                title: toUpperCaseFirst(slug) as S.ReasonableString,
                 slug,
                 count: tasks.length,
               })
           )
         ),
         new TaskListView({
-          title: "Tasks" as S.NonEmptyString,
+          title: "Tasks" as S.ReasonableString,
           slug: "tasks",
           count: unfilteredTasks["|>"](filterByCategory("inbox")).length,
         }),
diff --git a/apps/frontend/features/Tasks/data.ts b/apps/frontend/features/Tasks/data.ts
index 85e05f6..8123758 100644
--- a/apps/frontend/features/Tasks/data.ts
+++ b/apps/frontend/features/Tasks/data.ts
@@ -77,8 +77,8 @@ export function useTasks() {
 }
 
 const newTask =
-  (v: Todo.TaskView | S.NonEmptyString, listId: Todo.TaskListIdU = "inbox") =>
-  (newTitle: S.NonEmptyString) =>
+  (v: Todo.TaskView | S.ReasonableString, listId: Todo.TaskListIdU = "inbox") =>
+  (newTitle: S.ReasonableString) =>
     TodoClient.TasksClient.CreateTask({
       title: newTitle,
       isFavorite: v === "important",
@@ -86,7 +86,7 @@ const newTask =
       listId,
     })
 export function useNewTask(
-  v: Todo.TaskView | S.NonEmptyString,
+  v: Todo.TaskView | S.ReasonableString,
   listId?: Todo.TaskListId
 ) {
   return useFetch(newTask(v, listId))
@@ -224,7 +224,7 @@ export function useTaskCommandsResolved(t: Todo.Task) {
   }
 }
 
-const parseNES = Parser.for(S.nonEmptyString)["|>"](S.condemnFail)
+const parseRS = Parser.for(S.reasonableString)["|>"](S.condemnFail)
 
 export function useTaskCommands(id: Todo.TaskId) {
   const modifyTasks = useModifyTasks()
@@ -263,7 +263,7 @@ export function useTaskCommands(id: Todo.TaskId) {
     function updateStepTitle(t: Todo.Task) {
       return (s: Todo.Step) =>
         flow(
-          parseNES,
+          parseRS,
           T.map((stepTitle) => t["|>"](Todo.Task.updateStep(s, stepTitle))),
           T.chain(updateAndRefreshTask)
         )
@@ -287,7 +287,7 @@ export function useTaskCommands(id: Todo.TaskId) {
 
     function addNewTaskStep(t: Todo.Task) {
       return flow(
-        parseNES,
+        parseRS,
         T.map((title) => t["|>"](Todo.Task.addStep(title))),
         T.chain(updateAndRefreshTask)
       )
@@ -303,7 +303,7 @@ export function useTaskCommands(id: Todo.TaskId) {
 
     function setTitle(t: Todo.Task) {
       return flow(
-        parseNES,
+        parseRS,
         T.map((v) => t["|>"](Todo.Task.lens["|>"](Lens.prop("title")).set(v))),
         T.chain(updateAndRefreshTask)
       )
@@ -321,7 +321,7 @@ export function useTaskCommands(id: Todo.TaskId) {
       return (note: string | null) =>
         pipe(
           EO.fromNullable(note),
-          EO.chainEffect(parseNES),
+          EO.chainEffect(parseRS),
           T.chain((note) => updateAndRefreshTask({ id: t.id, note }))
         )
     }
diff --git a/packages/core/ext/Schema/_api/string.ts b/packages/core/ext/Schema/_api/string.ts
index 91388e6..17ac239 100644
--- a/packages/core/ext/Schema/_api/string.ts
+++ b/packages/core/ext/Schema/_api/string.ts
@@ -28,7 +28,8 @@ export interface ReasonableStringBrand {
   readonly ReasonableString: unique symbol
 }
 
-export type ReasonableString = S.NonEmptyString & ReasonableStringBrand
+// TODO: Evaluate if it makes sense to inherit the others too.
+export type ReasonableString = TextString & LongString & ReasonableStringBrand
 
 export const reasonableStringFromString = pipe(
   makeConstrainedFromString<ReasonableString>(1, 256 - 1),
@@ -45,7 +46,8 @@ export interface LongStringBrand {
   readonly LongString: unique symbol
 }
 
-export type LongString = S.NonEmptyString & LongStringBrand
+// TODO: Evaluate if it makes sense to inherit the others too.
+export type LongString = TextString & LongStringBrand
 
 export const longStringFromString = pipe(
   makeConstrainedFromString<LongString>(1, 2048 - 1),