diff --git a/docs/user/ebox-api-reference.en.md b/docs/user/ebox-api-reference.en.md
index 668a776..881ce30 100644
--- a/docs/user/ebox-api-reference.en.md
+++ b/docs/user/ebox-api-reference.en.md
@@ -190,7 +190,7 @@ together.
 | Content/geometry | `:content`, `:box-sizing`, `:width`, `:min-width`, `:max-width`, `:height`, `:min-height`, `:max-height` |
 | Padding | `:padding`, `:padding-inline`, `:padding-block`; longhands `:padding-block-start`, `:padding-inline-end`, `:padding-block-end`, `:padding-inline-start`; aliases `:padding-top`, `:padding-right`, `:padding-bottom`, `:padding-left` and the pixel/height aliases `:padding-right-pixel`, `:padding-left-pixel`, `:padding-top-height`, `:padding-bottom-height` |
 | Margin | `:margin`, `:margin-inline`, `:margin-block`; longhands `:margin-block-start`, `:margin-inline-end`, `:margin-block-end`, `:margin-inline-start`; aliases `:margin-top`, `:margin-right`, `:margin-bottom`, `:margin-left` and the pixel/height aliases `:margin-right-pixel`, `:margin-left-pixel`, `:margin-top-height`, `:margin-bottom-height` |
-| Border | `:border`, `:border-top`, `:border-right`, `:border-bottom`, `:border-left`, `:border-width`, `:border-style`, `:border-color`; side longhands `:border-*-width`, `:border-*-style`, `:border-*-color`; compatibility aliases `:border-top-p`, `:border-bottom-p`, `:border-left-pixel`, `:border-right-pixel` |
+| Border | `:border`, `:border-top`, `:border-right`, `:border-bottom`, `:border-left`, `:border-width`, `:border-style`, `:border-color`; side longhands `:border-*-width`, `:border-*-style`, `:border-*-color`; Ebox boolean shorthands `:border-top-p`, `:border-bottom-p`; compatibility aliases `:border-left-pixel`, `:border-right-pixel` |
 | Paint | `:color`, `:background-color`, and alias `:bgcolor` |
 | Typography | `:font`, `:font-family`, `:font-height` and alias `:font-size`, `:font-weight`, `:font-slant` |
 | Text/layout | `:text-align` (`left`, `center`, `right`), `:vertical-align` (`top`, `center`/`middle`, `bottom`), `:overflow` (`scroll`, `hidden`, `visible`), `:wrap-mode` (`word`, `char`, `kp`, or nil), `:visibility` (`visible` or `hidden`) |
@@ -587,7 +587,8 @@ style-rule functions immediately below are public module-level style APIs.
 
 | Function | Use |
 | --- | --- |
-| `ebox-create`, `ebox-build` | Create a node or compile the `.ebox` list DSL. |
+| `ebox-text-create`, `ebox-normal-layout-create`, `ebox-box-create` | Framework-integration port for typed TextNode, Normal LayoutConfig, and BoxNode values. |
+| `ebox-create`, `ebox-build` | Create a legacy node or compile the `.ebox` list DSL during migration. |
 | `ebox-concat`, `ebox-stack`, `ebox-row`, `ebox-column`, `ebox-spacer` | Compose simple horizontal/vertical layouts and blank boxes. |
 | `ebox-flex`, `ebox-flex-item` | Build flex containers and item metadata. |
 | `ebox-grid`, `ebox-grid-fr`, `ebox-grid-item` | Build Grid layouts, fractional tracks, and placement metadata. |
diff --git a/docs/user/ebox-api-reference.zh.md b/docs/user/ebox-api-reference.zh.md
index 784c397..1bd119e 100644
--- a/docs/user/ebox-api-reference.zh.md
+++ b/docs/user/ebox-api-reference.zh.md
@@ -173,7 +173,7 @@ property；`ebox-region-update` 接受其目标支持的可变 content/style/scr
 | Content/geometry | `:content`、`:box-sizing`、`:width`、`:min-width`、`:max-width`、`:height`、`:min-height`、`:max-height` |
 | Padding | `:padding`、`:padding-inline`、`:padding-block`；longhand `:padding-block-start`、`:padding-inline-end`、`:padding-block-end`、`:padding-inline-start`；别名 `:padding-top`、`:padding-right`、`:padding-bottom`、`:padding-left`，以及 `:padding-right-pixel`、`:padding-left-pixel`、`:padding-top-height`、`:padding-bottom-height` |
 | Margin | `:margin`、`:margin-inline`、`:margin-block`；longhand `:margin-block-start`、`:margin-inline-end`、`:margin-block-end`、`:margin-inline-start`；别名 `:margin-top`、`:margin-right`、`:margin-bottom`、`:margin-left`，以及 `:margin-right-pixel`、`:margin-left-pixel`、`:margin-top-height`、`:margin-bottom-height` |
-| Border | `:border`、`:border-top`、`:border-right`、`:border-bottom`、`:border-left`、`:border-width`、`:border-style`、`:border-color`；side longhand `:border-*-width`、`:border-*-style`、`:border-*-color`；兼容别名 `:border-top-p`、`:border-bottom-p`、`:border-left-pixel`、`:border-right-pixel` |
+| Border | `:border`、`:border-top`、`:border-right`、`:border-bottom`、`:border-left`、`:border-width`、`:border-style`、`:border-color`；side longhand `:border-*-width`、`:border-*-style`、`:border-*-color`；Ebox boolean shorthand `:border-top-p`、`:border-bottom-p`；兼容别名 `:border-left-pixel`、`:border-right-pixel` |
 | Paint | `:color`、`:background-color`、别名 `:bgcolor` |
 | Typography | `:font`、`:font-family`、`:font-height` 和别名 `:font-size`、`:font-weight`、`:font-slant` |
 | Text/layout | `:text-align`（`left`、`center`、`right`）、`:vertical-align`（`top`、`center`/`middle`、`bottom`）、`:overflow`（`scroll`、`hidden`、`visible`）、`:wrap-mode`（`word`、`char`、`kp` 或 nil）、`:visibility`（`visible` 或 `hidden`） |
@@ -533,7 +533,8 @@ style API。
 
 | 函数 | 用途 |
 | --- | --- |
-| `ebox-create`、`ebox-build` | 创建节点或编译 `.ebox` list DSL。 |
+| `ebox-text-create`、`ebox-normal-layout-create`、`ebox-box-create` | 框架集成使用的 typed TextNode、Normal LayoutConfig 与 BoxNode 端口。 |
+| `ebox-create`、`ebox-build` | 迁移期间创建旧节点或编译 `.ebox` list DSL。 |
 | `ebox-concat`、`ebox-stack`、`ebox-row`、`ebox-column`、`ebox-spacer` | 组合简单横向/纵向布局与空白 box。 |
 | `ebox-flex`、`ebox-flex-item` | 构建 Flex 容器与 item metadata。 |
 | `ebox-grid`、`ebox-grid-fr`、`ebox-grid-item` | 构建 Grid、分数轨道和 placement metadata。 |
diff --git a/ebox-canonical.el b/ebox-canonical.el
new file mode 100644
index 0000000..98b6f46
--- /dev/null
+++ b/ebox-canonical.el
@@ -0,0 +1,213 @@
+;;; ebox-canonical.el --- Typed canonical Ebox nodes -*- lexical-binding: t; -*-
+
+;;; Commentary:
+;; Owns the typed programmatic boundary between normalized author input and
+;; Ebox's current runtime representation.  Canonical kind, layout, source, and
+;; child facts remain explicit even when the runtime reuses an existing box
+;; encoding for rendering.  This module does not parse the `.ebox' DSL or
+;; perform measurement, layout, paint, or buffer publication.
+
+;;; Code:
+
+(require 'cl-lib)
+(require 'subr-x)
+(require 'ebox-style)
+(require 'ebox-node-factory)
+
+(cl-defstruct
+    (ebox-layout-config
+     (:constructor ebox-layout-config--create))
+  "Canonical typed layout selection for one BoxNode."
+  kind
+  props)
+
+(defun ebox-canonical--validate-plist (plist context)
+  "Validate PLIST shape for error CONTEXT and return PLIST."
+  (unless (proper-list-p plist)
+    (error "%s properties must be a proper plist: %S" context plist))
+  (unless (zerop (% (length plist) 2))
+    (error "%s property is missing a value: %S" context (car (last plist))))
+  (cl-loop for key in plist by #'cddr
+           unless (keywordp key)
+           do (error "%s property name must be a keyword: %S" context key))
+  plist)
+
+(defun ebox-canonical--without-keys (plist keys)
+  "Return PLIST without entries whose keys occur in KEYS."
+  (cl-loop for (key value) on plist by #'cddr
+           unless (memq key keys)
+           append (list key value)))
+
+(defun ebox-canonical--field-values (plist field)
+  "Return every FIELD value from PLIST in source order."
+  (cl-loop for (key value) on plist by #'cddr
+           when (eq key field)
+           collect value))
+
+(defun ebox-canonical--required-field (plist field context)
+  "Return exactly one required FIELD from PLIST for error CONTEXT."
+  (let ((values (ebox-canonical--field-values plist field)))
+    (unless (= (length values) 1)
+      (error "%s requires %S exactly once" context field))
+    (car values)))
+
+(defun ebox-canonical--optional-field (plist field context)
+  "Return `(PRESENT . VALUE)' for optional FIELD in PLIST and CONTEXT."
+  (let ((values (ebox-canonical--field-values plist field)))
+    (when (> (length values) 1)
+      (error "%s accepts %S at most once" context field))
+    (and values (cons t (car values)))))
+
+(defun ebox-canonical--compiled-property-definitions (plist context)
+  "Return canonical property definitions compiled from PLIST for CONTEXT."
+  (condition-case err
+      (cl-loop for (property _value)
+               on (ebox-style-compile-declarations plist t) by #'cddr
+               collect (or (ebox-style-property property)
+                           (error "Missing canonical Ebox property: %S"
+                                  property)))
+    (error
+     (error "%s rejected properties: %s" context (error-message-string err)))))
+
+(defun ebox-canonical--text-measurement-property-p (property)
+  "Return non-nil when PROPERTY belongs to canonical Text measurement."
+  (eq (plist-get property :group) 'typography))
+
+(defun ebox-canonical--normal-box-property-p (property)
+  "Return non-nil when PROPERTY belongs to Normal Box geometry/participation."
+  (let ((contexts (plist-get property :contexts))
+        (group (plist-get property :group))
+        (name (plist-get property :name)))
+    (or (memq 'item contexts)
+        (and (memq 'box contexts)
+             (not (memq group '(paint typography)))
+             (not (eq name :wrap-mode))))))
+
+(defun ebox-canonical--assert-property-role (plist predicate context)
+  "Require every compiled PLIST property to satisfy PREDICATE for CONTEXT."
+  (dolist (property
+           (ebox-canonical--compiled-property-definitions plist context))
+    (unless (funcall predicate property)
+      (error "%s does not accept %S"
+             context (plist-get property :name)))))
+
+;;;###autoload
+(defun ebox-normal-layout-create ()
+  "Return the canonical Normal layout config."
+  (ebox-layout-config--create :kind 'normal :props nil))
+
+(defun ebox-node-kind (node)
+  "Return canonical NODE kind, or nil for a legacy runtime node."
+  (and (listp node) (plist-get node :ebox-kind)))
+
+(defun ebox-text-node-p (node)
+  "Return non-nil when NODE is a canonical TextNode."
+  (eq (ebox-node-kind node) 'text))
+
+(defun ebox-box-node-p (node)
+  "Return non-nil when NODE is a canonical BoxNode."
+  (eq (ebox-node-kind node) 'box))
+
+(defun ebox-node-source-handle (node)
+  "Return canonical NODE's opaque source handle."
+  (and (listp node) (plist-get node :ebox-source-handle)))
+
+(defun ebox-text-node-value (node)
+  "Return canonical TextNode NODE's string payload."
+  (unless (ebox-text-node-p node)
+    (error "Expected canonical TextNode, got %S" node))
+  (plist-get node :ebox-text-value))
+
+(defun ebox-box-node-layout (node)
+  "Return canonical BoxNode NODE's typed layout config."
+  (unless (ebox-box-node-p node)
+    (error "Expected canonical BoxNode, got %S" node))
+  (plist-get node :ebox-layout-config))
+
+(defun ebox-box-node-children (node)
+  "Return canonical BoxNode NODE's retained canonical children."
+  (unless (ebox-box-node-p node)
+    (error "Expected canonical BoxNode, got %S" node))
+  (plist-get node :ebox-canonical-children))
+
+;;;###autoload
+(defun ebox-text-create (&rest plist)
+  "Create a canonical TextNode from evaluated PLIST.
+
+`:value' is required and must be one string.  `:source-handle' is optional.
+  Only text measurement properties are accepted; paint is projected separately."
+  (ebox-canonical--validate-plist plist "ebox-text-create")
+  (let* ((value (ebox-canonical--required-field
+                 plist :value "Ebox Text"))
+         (source-field (ebox-canonical--optional-field
+                        plist :source-handle "Ebox Text"))
+         (source-handle (cdr source-field))
+         (props (ebox-canonical--without-keys
+                 plist '(:value :source-handle))))
+    (unless (stringp value)
+      (error "Ebox Text :value must be a string: %S" value))
+    (ebox-canonical--assert-property-role
+     props #'ebox-canonical--text-measurement-property-p "Ebox Text")
+    (let ((node (apply #'ebox-create (append props (list :content value)))))
+      (plist-put node :ebox-kind 'text)
+      (plist-put node :ebox-text-value value)
+      (plist-put node :ebox-source-handle source-handle)
+      node)))
+
+;;;###autoload
+(defun ebox-box-create (&rest plist)
+  "Create a canonical BoxNode from evaluated PLIST.
+
+`:layout' must occur exactly once as an `ebox-layout-config'.
+`:children' is a list of canonical nodes.  This first vertical slice supports
+Normal layout with zero or one child; later slices extend the same typed port
+to the other Layout variants."
+  (ebox-canonical--validate-plist plist "ebox-box-create")
+  (let* ((layout (ebox-canonical--required-field
+                  plist :layout "Ebox Box"))
+         (children-field (ebox-canonical--optional-field
+                          plist :children "Ebox Box"))
+         (outer-field (ebox-canonical--optional-field
+                       plist :outer "Ebox Box"))
+         (source-field (ebox-canonical--optional-field
+                        plist :source-handle "Ebox Box"))
+         (children (if children-field (cdr children-field) nil))
+         (outer (if outer-field (cdr outer-field) 'block))
+         (source-handle (cdr source-field))
+         (props (ebox-canonical--without-keys
+                 plist '(:layout :children :outer :source-handle))))
+    (unless (ebox-layout-config-p layout)
+      (error "Ebox Box :layout must be a typed layout config: %S"
+             layout))
+    (unless (memq outer '(inline block))
+      (error "Ebox Box :outer must be inline or block: %S" outer))
+    (unless (proper-list-p children)
+      (error "Ebox Box :children must be a proper list: %S" children))
+    (unless (cl-every (lambda (child)
+                        (or (ebox-text-node-p child)
+                            (ebox-box-node-p child)))
+                      children)
+      (error "Ebox Box children must be canonical Text/Box nodes: %S"
+             children))
+    (unless (eq (ebox-layout-config-kind layout) 'normal)
+      (error "Ebox Box Layout is not implemented in this slice: %S"
+             (ebox-layout-config-kind layout)))
+    (when (> (length children) 1)
+      (error "Ebox Box Normal layout currently accepts at most one child"))
+    (ebox-canonical--assert-property-role
+     props #'ebox-canonical--normal-box-property-p "Ebox Box")
+    (let ((node
+           (apply #'ebox-create
+                  (append props
+                          (when children
+                            (list :ebox-content-node (car children)))))))
+      (plist-put node :ebox-kind 'box)
+      (plist-put node :ebox-layout-config layout)
+      (plist-put node :ebox-canonical-children children)
+      (plist-put node :ebox-source-handle source-handle)
+      (plist-put node :display (list outer 'flow))
+      node)))
+
+(provide 'ebox-canonical)
+
+;;; ebox-canonical.el ends here
diff --git a/ebox-dsl.el b/ebox-dsl.el
index 72fd60d..bbfce0a 100644
--- a/ebox-dsl.el
+++ b/ebox-dsl.el
@@ -11,6 +11,7 @@
 (require 'ebox-tree)
 (require 'ebox-flex)
 (require 'ebox-grid)
+(require 'ebox-canonical)
 
 (declare-function ebox-create "ebox" (&rest plist))
 
@@ -97,6 +98,20 @@ The first value is string content.  The second value is a lazy child node."
                      (when child-node
                        (list :ebox-content-node child-node)))))))
 
+(defun ebox--build-text (items)
+  "Build one canonical TextNode from DSL ITEMS."
+  (let* ((split (ebox--build-split-attrs items))
+         (props (car split))
+         (payloads (delq nil (cdr split))))
+    (when props
+      (error "Ebox build: Text author properties are not implemented in this slice"))
+    (unless (= (length payloads) 1)
+      (error "ebox-build: text requires exactly one string payload"))
+    (unless (stringp (car payloads))
+      (error "ebox-build: text payload must be a string: %S" (car payloads)))
+    (apply #'ebox-text-create
+           (append props (list :value (car payloads))))))
+
 (defun ebox--build-wrap-layout (tag props layout)
   "Wrap LAYOUT with box PROPS for DSL TAG, or return LAYOUT unchanged."
   (if (null props)
@@ -220,13 +235,14 @@ and `column' may also receive box properties; those properties wrap
 the child layout in a box using the rendered child layout as content."
   (cond
    ((ebox--node-p dsl) dsl)
-   ((stringp dsl) (ebox-create :content dsl))
+   ((stringp dsl) (ebox-text-create :value dsl))
    ((not (and (consp dsl) (symbolp (car dsl))))
     (error "ebox-build: invalid DSL node %S" dsl))
    (t
     (let ((tag (car dsl))
           (items (ebox--dsl-unquote-properties (cdr dsl))))
       (pcase tag
+        ('text (ebox--build-text items))
         ('box (ebox--build-canonical-box items))
         ('ebox (ebox--build-box items))
         ('row (ebox--build-layout tag #'ebox-row items))
diff --git a/ebox-node-factory.el b/ebox-node-factory.el
new file mode 100644
index 0000000..36b3dee
--- /dev/null
+++ b/ebox-node-factory.el
@@ -0,0 +1,62 @@
+;;; ebox-node-factory.el --- Runtime box node factory -*- lexical-binding: t; -*-
+
+;;; Commentary:
+;; Owns the legacy runtime box encoding used by render/layout modules during
+;; the typed canonical migration.  Higher programmatic constructors may lower
+;; through this factory, but author DSL parsing and buffer publication do not
+;; belong here.
+
+;;; Code:
+
+(require 'ebox-style)
+
+(defconst ebox--longhand
+  '(:content ""
+    :box-sizing border-box
+    :width nil :min-width 0 :max-width nil
+    :height nil :min-height 0 :max-height nil
+    :padding-left-pixel 0 :padding-right-pixel 0
+    :padding-top-height 0 :padding-bottom-height 0
+    :margin-left-pixel 0 :margin-right-pixel 0
+    :margin-top-height 0 :margin-bottom-height 0
+    :border-left-pixel 0 :border-left-color nil
+    :border-right-pixel 0 :border-right-color nil
+    :border-top-p nil :border-top-color nil
+    :border-bottom-p nil :border-bottom-color nil
+    :color nil :bgcolor nil
+    :font nil :font-family nil :font-height nil
+    :font-weight nil :font-slant nil
+    :text-align left :vertical-align top
+    :overflow scroll :visibility visible
+    :wrap-mode word :scroll-offset 0)
+  "Default longhand fields for the current runtime box encoding.")
+
+(defun ebox--longhand-create (&optional plist)
+  "Return a runtime box field plist overridden by PLIST."
+  (let ((box (copy-sequence ebox--longhand)))
+    (while plist
+      (let ((key (pop plist))
+            (value (pop plist)))
+        (plist-put box key value)))
+    box))
+
+;;;###autoload
+(defun ebox-create (&rest plist)
+  "Create one legacy runtime box from PLIST.
+
+New framework integrations should use `ebox-text-create' and
+`ebox-box-create'.  This factory remains public during source-tree migration."
+  (let ((declarations (ebox-style-compile-declarations plist))
+        (expanded (ebox-style-expand-ebox-plist plist))
+        (controlled-scroll-offset-p (plist-member plist :scroll-offset)))
+    (let ((box (ebox--longhand-create expanded)))
+      (plist-put box :ebox-type 'box)
+      (plist-put box :display '(block flow))
+      (plist-put box :ebox-style-declarations declarations)
+      (when controlled-scroll-offset-p
+        (plist-put box :ebox-scroll-offset-controlled-p t))
+      box)))
+
+(provide 'ebox-node-factory)
+
+;;; ebox-node-factory.el ends here
diff --git a/ebox-style.el b/ebox-style.el
index 6e57e8d..9ef0054 100644
--- a/ebox-style.el
+++ b/ebox-style.el
@@ -114,14 +114,14 @@
      :group geometry :dirty-kind geometry :signature layout
      :validator nonnegative-size)
     (:name :border-top-width :id ebox/border-top-width
-     :aliases (:border-top-p) :initial nil :contexts (box)
+     :initial nil :contexts (box)
      :group geometry :dirty-kind geometry :signature layout)
     (:name :border-right-width :id ebox/border-right-width
      :aliases (:border-right-pixel) :initial nil :contexts (box)
      :group geometry :dirty-kind geometry :signature layout
      :validator nonnegative-size)
     (:name :border-bottom-width :id ebox/border-bottom-width
-     :aliases (:border-bottom-p) :initial nil :contexts (box)
+     :initial nil :contexts (box)
      :group geometry :dirty-kind geometry :signature layout)
     (:name :border-left-width :id ebox/border-left-width
      :aliases (:border-left-pixel) :initial nil :contexts (box)
@@ -231,6 +231,14 @@
     (:name :border-right :id ebox/border-right :shorthand border-right)
     (:name :border-bottom :id ebox/border-bottom :shorthand border-bottom)
     (:name :border-left :id ebox/border-left :shorthand border-left)
+    (:name :border-top-p :id ebox/border-top-p
+     :shorthand border-top-present :validator boolean
+     :exclusive-outputs t
+     :group structure :dirty-kind structure :signature layout)
+    (:name :border-bottom-p :id ebox/border-bottom-p
+     :shorthand border-bottom-present :validator boolean
+     :exclusive-outputs t
+     :group structure :dirty-kind structure :signature layout)
     (:name :border-width :id ebox/border-width :shorthand border-width
      :group geometry :dirty-kind geometry :signature layout)
     (:name :border-style :id ebox/border-style :shorthand border-style
@@ -263,15 +271,25 @@ every `ebox-create' needlessly copies the entire property metadata domain.")
   (make-hash-table :test 'equal)
   "Bounded memo table for canonical Ebox declaration compilation.")
 
+(defun ebox-style--register-property-name (table name property role)
+  "Register NAME for PROPERTY ROLE in TABLE, rejecting collisions."
+  (when-let* ((existing (gethash name table)))
+    (unless (eq existing property)
+      (error "Ebox property %S %s collides with canonical property %S"
+             name role (plist-get existing :name))))
+  (puthash name property table))
+
 (defun ebox-style--ensure-property-table ()
   "Return the canonical style property registry table."
   (or ebox-style--property-table
       (let ((table (make-hash-table :test 'eq)))
         (dolist (property ebox-style--property-definitions)
-          (puthash (plist-get property :name) property table)
-          (puthash (plist-get property :id) property table)
+          (ebox-style--register-property-name
+           table (plist-get property :name) property "name")
+          (ebox-style--register-property-name
+           table (plist-get property :id) property "ID")
           (dolist (alias (plist-get property :aliases))
-            (puthash alias property table)))
+            (ebox-style--register-property-name table alias property "alias")))
         (setq ebox-style--property-table table))))
 
 (defun ebox-style-property (name)
@@ -457,6 +475,22 @@ every `ebox-create' needlessly copies the entire property metadata domain.")
   "Expand left border VALUE to namespaced longhands."
   (ebox-style--border-side-declarations 'left value))
 
+(defun ebox-style--border-present-declarations (side value)
+  "Return canonical boolean border declarations for SIDE and VALUE."
+  (unless (memq value '(nil t))
+    (error "Ebox border-%s-p must be boolean: %S" side value))
+  (list (intern (format "ebox/border-%s-width" side)) (if value 1 0)
+        (intern (format "ebox/border-%s-style" side))
+        (if value 'solid 'none)))
+
+(defun ebox-style--border-top-present-shorthand (value)
+  "Expand boolean top-border VALUE to canonical width and style."
+  (ebox-style--border-present-declarations 'top value))
+
+(defun ebox-style--border-bottom-present-shorthand (value)
+  "Expand boolean bottom-border VALUE to canonical width and style."
+  (ebox-style--border-present-declarations 'bottom value))
+
 (defun ebox-style--border-component-shorthand (component value)
   "Expand border COMPONENT VALUE across all physical sides."
   (ebox-style--trbl-declarations
@@ -593,6 +627,7 @@ every `ebox-create' needlessly copies the entire property metadata domain.")
     ('font-family #'ebox-style--font-family-p)
     ('font-height #'ebox-style--font-height-p)
     ('font-attribute #'ebox-style--font-attribute-p)
+    ('boolean (lambda (value) (memq value '(nil t))))
     (_ (lambda (_value) t))))
 
 (defun ebox-style--shorthand (name)
@@ -610,6 +645,8 @@ every `ebox-create' needlessly copies the entire property metadata domain.")
      (border-right . ebox-style--border-right-shorthand)
      (border-bottom . ebox-style--border-bottom-shorthand)
      (border-left . ebox-style--border-left-shorthand)
+     (border-top-present . ebox-style--border-top-present-shorthand)
+     (border-bottom-present . ebox-style--border-bottom-present-shorthand)
      (border-width . ebox-style--border-width-shorthand)
      (border-style . ebox-style--border-style-shorthand)
      (border-color . ebox-style--border-color-shorthand)
@@ -694,6 +731,58 @@ cascade pass during its initial static projection."
   "Return non-nil when PLIST is a proper even-length list."
   (and (proper-list-p plist) (zerop (% (length plist) 2))))
 
+(defun ebox-style--validate-no-duplicate-properties (plist)
+  "Reject duplicate canonical properties in author PLIST."
+  (let ((seen (make-hash-table :test 'eq)))
+    (cl-loop for (name _value) on plist by #'cddr
+             for property = (ebox-style-property name)
+             for id = (and property (plist-get property :id))
+             when id
+             do (when-let* ((previous (gethash id seen)))
+                  (error
+                   "Duplicate Ebox property %S via %S and %S"
+                   (plist-get property :name) previous name))
+             and do (puthash id name seen)))
+  plist)
+
+(defun ebox-style--author-property-output-ids (name value)
+  "Return canonical output IDs produced by author NAME and VALUE."
+  (when-let* ((property (ebox-style-property name)))
+    (if-let* ((shorthand-name (plist-get property :shorthand))
+              (expander (ebox-style--shorthand shorthand-name)))
+        (cl-loop for (id _output) on (funcall expander value) by #'cddr
+                 collect id)
+      (list (plist-get property :id)))))
+
+(defun ebox-style--validate-exclusive-properties (plist)
+  "Reject author properties whose canonical outputs overlap in PLIST."
+  (let (entries)
+    (cl-loop for (name value) on plist by #'cddr
+             for property = (ebox-style-property name)
+             when property
+             do (push (list :name name :value value :property property)
+                      entries))
+    (when (cl-some (lambda (entry)
+                     (plist-get (plist-get entry :property)
+                                :exclusive-outputs))
+                   entries)
+      (dolist (entry entries)
+        (when (plist-get (plist-get entry :property) :exclusive-outputs)
+          (let ((outputs
+                 (ebox-style--author-property-output-ids
+                  (plist-get entry :name) (plist-get entry :value))))
+            (dolist (other entries)
+              (unless (eq entry other)
+                (when (cl-intersection
+                       outputs
+                       (ebox-style--author-property-output-ids
+                        (plist-get other :name) (plist-get other :value))
+                       :test #'eq)
+                  (error "Ebox property %S cannot be combined with %S"
+                         (plist-get entry :name)
+                         (plist-get other :name))))))))))
+  plist)
+
 (defun ebox-style--declaration-cache-key (plist strict)
   "Return a stable style-only cache key for PLIST and STRICT.
 Non-style node properties such as content, Host references, and callbacks do
@@ -706,7 +795,12 @@ not affect declaration compilation and are intentionally excluded."
                       (append canonical (list schema value)))
              else if (ebox-style--custom-property-p property)
              do (setq canonical
-                      (append canonical (list property value))))
+                      (append canonical (list property value)))
+             else if strict
+             do (setq canonical
+                      (append canonical
+                              (list 'ebox-style/unknown-property
+                                    property value))))
     (list strict canonical)))
 
 (defun ebox-style--static-invalid-declaration-p (validator value)
@@ -738,6 +832,8 @@ When STRICT is non-nil, reject properties outside the Ebox style domain."
   (ebox-style--ensure-properties)
   (unless (ebox-style--valid-plist-p plist)
     (user-error "Ebox style declarations must be an even property list"))
+  (ebox-style--validate-no-duplicate-properties plist)
+  (ebox-style--validate-exclusive-properties plist)
   (let* ((cache-key (ebox-style--declaration-cache-key plist strict))
          (missing (make-symbol "ebox-style-declaration-cache-missing"))
          (cached (gethash cache-key ebox-style--declaration-cache missing)))
diff --git a/ebox.el b/ebox.el
index c84af7e..c3c0eb2 100644
--- a/ebox.el
+++ b/ebox.el
@@ -23,9 +23,11 @@
   "Directory containing the active Ebox Lisp sources.")
 
 (defconst ebox--compile-sources
-  '("ebox-cache.el" "ebox-style.el" "ebox-child-range.el" "ebox-tree.el" "ebox-measure.el"
+  '("ebox-cache.el" "ebox-style.el" "ebox-node-factory.el"
+    "ebox-child-range.el" "ebox-tree.el" "ebox-measure.el"
     "ebox-fragment.el" "ebox-render-context.el" "ebox-layout.el"
-    "ebox-flex.el" "ebox-grid.el" "ebox-buffer-backend.el" "ebox-incremental.el"
+    "ebox-flex.el" "ebox-grid.el" "ebox-canonical.el"
+    "ebox-buffer-backend.el" "ebox-incremental.el"
     "ebox-native-commit.el" "ebox-surface.el" "ebox-viewport.el"
     "ebox-dsl.el" "ebox-selector.el" "ebox.el"
     "ebox-native-reflow.el")
@@ -39,6 +41,7 @@
 (require 'subr-x)
 (require 'ebox-cache)
 (require 'ebox-style)
+(require 'ebox-node-factory)
 (require 'ebox-child-range)
 (require 'ebox-tree)
 (require 'ebox-measure)
@@ -47,6 +50,7 @@
 (require 'ebox-layout)
 (require 'ebox-flex)
 (require 'ebox-grid)
+(require 'ebox-canonical)
 (require 'ebox-buffer-backend)
 (require 'ebox-incremental)
 (require 'ebox-surface)
@@ -387,51 +391,6 @@ caller, such as the Playground preview, renders against a concrete window.")
   "Generate next unique region ID."
   (cl-incf ebox--region-id-counter))
 
-(defconst ebox--longhand
-  '( :content ""
-     :box-sizing border-box ;; content-box or border-box
-
-     ;; 所有宽度的单位是像素，所有高度的单位是行数
-     :width nil :min-width 0 :max-width nil
-     :height nil :min-height 0 :max-height nil
-
-     :padding-left-pixel 0 :padding-right-pixel 0
-     :padding-top-height 0 :padding-bottom-height 0
-     :margin-left-pixel 0 :margin-right-pixel 0
-     :margin-top-height 0 :margin-bottom-height 0
-
-     ;; 左右边框支持设置宽度
-     :border-left-pixel 0 :border-left-color nil
-     :border-right-pixel 0 :border-right-color nil
-     ;; 上下边框由于 Emacs 限制，用 overline/underline 实现，不支持设置宽度
-     :border-top-p nil :border-top-color nil
-     :border-bottom-p nil :border-bottom-color nil
-     :color nil
-     :bgcolor nil
-     :font nil :font-family nil :font-height nil
-     :font-weight nil :font-slant nil
-     :text-align left :vertical-align top
-     ;; supports: 'visible / 'hidden / 'scroll
-     :overflow scroll
-     ;; supports: 'visible / 'hidden — hidden suppresses ink while the
-     ;; layout footprint, buffer text, and metadata stay identical
-     :visibility visible
-     ;; supports: 'word / 'char / 'kp
-     :wrap-mode word
-     :scroll-offset 0 ;; 当前滚动偏移（行数）
-     )
-  "Default plist for a box structure (longhand properties only).")
-
-(defun ebox--longhand-create (&optional plist)
-  "Create a shorthand box structure.
-PLIST is a property list that overrides the defaults."
-  (let ((box (copy-sequence ebox--longhand)))
-    (while plist
-      (let ((key (pop plist))
-            (value (pop plist)))
-        (plist-put box key value)))
-    box))
-
 (defsubst ebox-get (box property)
   "Retrieve PROPERTY from BOX."
   (plist-get box property))
@@ -869,21 +828,6 @@ Supports: t (default fg), nil, string, (light . dark) cons."
 
 ;;; --- 核心 API ---
 
-;;;###autoload
-(defun ebox-create (&rest plist)
-  "Create a box from PLIST. Supports all shorthand and longhand properties.
-Properties are expanded recursively according to `ebox-property-rules'."
-  (let ((declarations (ebox-style-compile-declarations plist))
-        (expanded (ebox--expand-plist plist))
-        (controlled-scroll-offset-p (plist-member plist :scroll-offset)))
-    (let ((box (ebox--longhand-create expanded)))
-      (plist-put box :ebox-type 'box)
-      (plist-put box :display '(block flow))
-      (plist-put box :ebox-style-declarations declarations)
-      (when controlled-scroll-offset-p
-        (plist-put box :ebox-scroll-offset-controlled-p t))
-      box)))
-
 ;;; ============================================================
 ;;; Buffer Runtime State & Scroll State
 ;;; ============================================================
@@ -4643,6 +4587,9 @@ through dirty-set and patch-set execution before falling back to root rerender."
     ebox-candidate-patch-host-paint
     ebox-clear-cache
     ebox-column
+    ebox-normal-layout-create
+    ebox-text-create
+    ebox-box-create
     ebox-commit
     ebox-concat
     ebox-create
@@ -4724,8 +4671,16 @@ and are documented separately in the public API reference.")
 ;; All other ebox-- prefixed functions are internal implementation details.
 ;;
 ;; ── Creation ──────────────────────────────────────────────────
+;;   ebox-text-create :value string &rest canonical-measurement-props
+;;       Create one typed canonical TextNode.
+;;   ebox-normal-layout-create
+;;       Create the typed Normal LayoutConfig.
+;;   ebox-box-create :layout config :children nodes &rest geometry-props
+;;       Create one typed canonical BoxNode.  The current vertical slice
+;;       accepts Normal layout with zero or one canonical child.
 ;;   ebox-create &rest plist
-;;       Create a box. Key options: :content :width :height
+;;       Legacy untyped runtime constructor retained during migration.
+;;       Key options: :content :width :height
 ;;       :padding :margin :border :border-color :bgcolor
 ;;       :text-align :wrap-mode :box-sizing :surface-properties :host-ref
 ;;   ebox-build dsl
diff --git a/tests/ebox-core-render-tests.el b/tests/ebox-core-render-tests.el
index d29f0ce..95dfb40 100644
--- a/tests/ebox-core-render-tests.el
+++ b/tests/ebox-core-render-tests.el
@@ -5254,13 +5254,13 @@
                           :padding (0 (8)) :border "#D97757")
                      (box :content "Body" :width (120)
                           :padding (0 (8)) :border "#D97757"
-                          :border-top-p nil))
+                          :border-top none))
                     (column
                      (box :id right :content "Right" :width (120)
                           :padding (0 (8)) :border "#5E7F6A")
                      (box :content "Body" :width (120)
                           :padding (0 (8)) :border "#5E7F6A"
-                          :border-top-p nil)))))
+                          :border-top none)))))
          (left-id (plist-get
                    (car (ebox-selector-query-all layout "#left"))
                    :region-id)))
@@ -5291,17 +5291,17 @@
                     (column
                      (box :id left :content "Left" :width (120)
                           :padding (0 (8)) :border "#D97757"
-                          :border-bottom-p nil)
+                          :border-bottom none)
                      (box :content "Body" :width (120)
                           :padding (0 (8)) :border "#D97757"
-                          :border-top-p nil))
+                          :border-top none))
                     (column
                      (box :content "Right" :width (120)
                           :padding (0 (8)) :border "#5E7F6A"
-                          :border-bottom-p nil)
+                          :border-bottom none)
                      (box :content "Body" :width (120)
                           :padding (0 (8)) :border "#5E7F6A"
-                          :border-top-p nil)))))
+                          :border-top none)))))
          (left-id (plist-get
                    (car (ebox-selector-query-all layout "#left"))
                    :region-id)))
@@ -5335,17 +5335,17 @@
                     (column
                      (box :id left :content "Left" :width (120)
                           :padding (0 (8)) :border "#D97757"
-                          :border-bottom-p nil)
+                          :border-bottom none)
                      (box :content "Body" :width (120)
                           :padding (0 (8)) :border "#D97757"
-                          :border-top-p nil))
+                          :border-top none))
                     (column
                      (box :content "Right" :width (120)
                           :padding (0 (8)) :border "#5E7F6A"
-                          :border-bottom-p nil)
+                          :border-bottom none)
                      (box :content "Body" :width (120)
                           :padding (0 (8)) :border "#5E7F6A"
-                          :border-top-p nil)))))
+                          :border-top none)))))
          (left-id (plist-get
                    (car (ebox-selector-query-all layout "#left"))
                    :region-id)))
@@ -8504,7 +8504,7 @@
            `(flex :width (240) :flex-flow (row wrap)
                   :row-gap 1 :column-gap 0
                   :padding (0 (8)) :border "#D97757"
-                  :border-top-p nil :bgcolor "#FFF8F2"
+                  :border-top none :bgcolor "#FFF8F2"
                   ,@(cl-loop for idx below 6
                              collect
                              `(box :id ,(format "prefix-item-%02d" idx)
@@ -8610,7 +8610,7 @@
                   :flex-flow (row wrap)
                   :row-gap 1 :column-gap 0
                   :padding (0 (8)) :border "#D97757"
-                  :border-top-p nil :bgcolor "#FFF8F2"
+                  :border-top none :bgcolor "#FFF8F2"
                   ,@(cl-loop for idx below 8
                              collect
                              `(box :content ,(format "wrapper %02d" idx)
@@ -8659,7 +8659,7 @@
                   :flex-flow (row wrap)
                   :row-gap 1 :column-gap 0
                   :padding (0 (8)) :border "#D97757"
-                  :border-top-p nil :bgcolor "#FFF8F2"
+                  :border-top none :bgcolor "#FFF8F2"
                   ,@(cl-loop for idx below 4
                              collect
                              `(box :content ,(format "complete %02d" idx)
@@ -8788,7 +8788,7 @@
                   :flex-flow (row wrap)
                   :row-gap 1 :column-gap 0
                   :padding (0 (8)) :border "#D97757"
-                  :border-top-p nil :bgcolor "#FFF8F2"
+                  :border-top none :bgcolor "#FFF8F2"
                   ,@(cl-loop for idx below 8
                              collect
                              `(box :content ,(format "extend %02d" idx)
@@ -8821,7 +8821,7 @@
            `(flex :width (240) :flex-flow (row wrap)
                   :row-gap 1 :column-gap 0
                   :padding (0 (8)) :border "#D97757"
-                  :border-top-p nil :bgcolor "#FFF8F2"
+                  :border-top none :bgcolor "#FFF8F2"
                   ,@(cl-loop for idx below 16
                              collect
                              `(box :content ,(format "piece %02d" idx)
@@ -8852,7 +8852,7 @@
                   :padding (0 (8) 2 (8))
                   :margin-bottom 2
                   :border "#D97757"
-                  :border-top-p nil
+                  :border-top none
                   :bgcolor "#FFF8F2"
                   ,@(cl-loop for idx below 2
                              collect
@@ -8897,7 +8897,7 @@
                   :row-gap 1 :column-gap 0
                   :padding (0 (8))
                   :border "#D97757"
-                  :border-top-p nil
+                  :border-top none
                   :bgcolor "#FFF8F2"
                   ,@(cl-loop for idx below 4
                              collect
@@ -8934,7 +8934,7 @@
                   :row-gap 1 :column-gap 0
                   :padding (0 (8))
                   :border "#D97757"
-                  :border-top-p nil
+                  :border-top none
                   ,@(cl-loop for idx below 4
                              collect
                              `(box :content ,(format "atomic %02d" idx)
@@ -11066,7 +11066,7 @@
                    :flex-flow (row wrap)
                    :row-gap 1 :column-gap (8)
                    :padding (0 (12)) :border "#D97757"
-                   :border-top-p nil
+                   :border-top none
                    ,@(cl-loop for idx below 24
                               collect
                               `(box :content ,(format "signature %02d" idx)
diff --git a/tests/ebox-dsl-tests.el b/tests/ebox-dsl-tests.el
index 6b88b66..64eb2e3 100644
--- a/tests/ebox-dsl-tests.el
+++ b/tests/ebox-dsl-tests.el
@@ -52,6 +52,164 @@
     (ebox-style-apply-computed node style)
     (should (equal (ebox--computed-display node) '(inline flex)))))
 
+(ert-deftest ebox-style-strict-cache-does-not-hide-unknown-properties ()
+  "Strict declaration validation should remain exact after an empty cache hit."
+  (ebox-style-compile-declarations nil t)
+  (should-error
+   (ebox-style-compile-declarations '(:not-an-ebox-property 1) t)
+   :type 'error))
+
+(ert-deftest ebox-style-aliases-share-one-canonical-property-id ()
+  "A concise alias should disappear before canonical declarations."
+  (should
+   (equal (ebox-style-compile-declarations '(:bgcolor "red") t)
+          (ebox-style-compile-declarations '(:background-color "red") t))))
+
+(ert-deftest ebox-style-rejects-canonical-and-alias-duplicates ()
+  "One declaration source should not spell one property twice."
+  (should-error
+   (ebox-style-compile-declarations
+    '(:bgcolor "red" :background-color "blue") t)
+   :type 'error)
+  (should-error
+   (ebox-style-compile-declarations
+    '(:background-color "red" :bgcolor "blue") t)
+   :type 'error))
+
+(ert-deftest ebox-style-property-registry-rejects-alias-collisions ()
+  "An alias should never shadow another canonical property."
+  (let ((ebox-style--property-table nil)
+        (ebox-style--property-definitions
+         '((:name :first :id ebox/first :aliases (:second))
+           (:name :second :id ebox/second))))
+    (should-error (ebox-style--ensure-property-table) :type 'error)))
+
+(ert-deftest ebox-style-border-present-is-a-typed-shorthand-not-an-alias ()
+  "The concise border boolean should expand to canonical width and style."
+  (should
+   (equal (ebox-style-compile-declarations '(:border-top-p t) t)
+          '(ebox/border-top-width 1 ebox/border-top-style solid)))
+  (should
+   (equal (ebox-style-compile-declarations '(:border-top-p nil) t)
+          '(ebox/border-top-width 0 ebox/border-top-style none)))
+  (should (eq (ebox-style-canonical-name :border-top-p) :border-top-p)))
+
+(ert-deftest ebox-style-exclusive-check-does-not-reexpand-ordinary-shorthands ()
+  "Conflict validation should leave the declaration cache effective."
+  (let ((calls 0)
+        (original (symbol-function 'ebox-style--padding-shorthand)))
+    (clrhash ebox-style--declaration-cache)
+    (cl-letf (((symbol-function 'ebox-style--padding-shorthand)
+               (lambda (value)
+                 (cl-incf calls)
+                 (funcall original value))))
+      (ebox-style-compile-declarations '(:padding 1) t)
+      (ebox-style-compile-declarations '(:padding 1) t))
+    (should (= calls 1))))
+
+(ert-deftest ebox-style-border-present-rejects-owned-longhand-conflicts ()
+  "One source should not mix the boolean border shorthand with its outputs."
+  (should-error
+   (ebox-style-compile-declarations
+    '(:border-top-p t :border-top-width 2) t)
+   :type 'error)
+  (should-error
+   (ebox-style-compile-declarations
+    '(:border-top-style dashed :border-top-p t) t)
+   :type 'error)
+  (should-error
+   (ebox-style-compile-declarations
+    '(:border-top-p t :border-top (2 dashed "red")) t)
+   :type 'error)
+  (should-error
+   (ebox-style-compile-declarations
+    '(:border-top-p t :border-width 2) t)
+   :type 'error)
+  (should-error
+   (ebox-style-compile-declarations
+    '(:border-style dashed :border-top-p t) t)
+   :type 'error)
+  (should-error
+   (ebox-style-compile-declarations
+    '(:border-bottom-p t :border (1 solid "red")) t)
+   :type 'error))
+
+(ert-deftest ebox-canonical-text-constructor-is-renderable-and-typed ()
+  "A canonical TextNode should retain its kind, source, and string value."
+  (let ((node (ebox-text-create :value "Hello" :source-handle 'source-text)))
+    (should (ebox-text-node-p node))
+    (should-not (ebox-box-node-p node))
+    (should (eq (ebox-node-source-handle node) 'source-text))
+    (should (string= (ebox-text-node-value node) "Hello"))
+    (should (string= (ebox-dsl-test--plain node) "Hello"))))
+
+(ert-deftest ebox-canonical-text-constructor-rejects-non-text-shapes ()
+  "A canonical TextNode should have exactly one string payload."
+  (should-error (ebox-text-create :value 7) :type 'error)
+  (should-error (ebox-text-create :value "A" :content "B") :type 'error)
+  (should-error (ebox-text-create :value "A" :children nil) :type 'error)
+  (should-error (ebox-text-create :value "A" :color "red") :type 'error)
+  (should-error
+   (ebox-text-create :value "A" :value "B")
+   :type 'error)
+  (should-error
+   (ebox-text-create :value "A" :source-handle 'a :source-handle 'b)
+   :type 'error))
+
+(ert-deftest ebox-canonical-normal-box-renders-one-typed-text-child ()
+  "A canonical BoxNode should retain typed Layout and child source facts."
+  (let* ((text (ebox-text-create :value "A" :source-handle 'source-text))
+         (layout (ebox-normal-layout-create))
+         (box (ebox-box-create :layout layout
+                               :children (list text)
+                               :source-handle 'source-box)))
+    (should (ebox-box-node-p box))
+    (should-not (ebox-text-node-p box))
+    (should (eq (ebox-node-source-handle box) 'source-box))
+    (should (eq (ebox-layout-config-kind
+                 (ebox-box-node-layout box))
+                'normal))
+    (should (equal (ebox-box-node-children box) (list text)))
+    (should (string= (ebox-dsl-test--plain box) "A"))))
+
+(ert-deftest ebox-canonical-box-rejects-paint-only-properties ()
+  "Canonical Box geometry should not duplicate paint-only state."
+  (should-error
+   (ebox-box-create :layout (ebox-normal-layout-create)
+                    :bgcolor "red")
+   :type 'error))
+
+(ert-deftest ebox-canonical-box-requires-unique-reserved-fields ()
+  "Typed Box reserved fields should never be missing or duplicated."
+  (let ((normal (ebox-normal-layout-create)))
+    (should-error (ebox-box-create :children nil) :type 'error)
+    (should-error
+     (ebox-box-create :layout normal :layout normal :children nil)
+     :type 'error)
+    (should-error
+     (ebox-box-create :layout normal :children nil :children nil)
+     :type 'error)
+    (should-error
+     (ebox-box-create :layout normal :outer nil :children nil)
+     :type 'error)))
+
+(ert-deftest ebox-build-normalizes-text-author-forms ()
+  "The Ebox DSL should normalize explicit and bare Text forms."
+  (let ((text (ebox-build '(text "A")))
+        (bare (ebox-build "B")))
+    (should (ebox-text-node-p text))
+    (should (ebox-text-node-p bare))
+    (should (string= (ebox-dsl-test--plain text) "A"))
+    (should (string= (ebox-dsl-test--plain bare) "B"))))
+
+(ert-deftest ebox-build-text-requires-one-string-payload ()
+  "The Ebox Text form should reject empty, multiple, and nested payloads."
+  (should-error (ebox-build '(text)) :type 'error)
+  (should-error (ebox-build '(text "A" "B")) :type 'error)
+  (should-error (ebox-build '(text (text "A"))) :type 'error)
+  (should-error (ebox-build '(text :color "red" "A")) :type 'error)
+  (should-error (ebox-build '(text :wrap-mode garbage "A")) :type 'error))
+
 (ert-deftest ebox-dsl-module-preserves-public-build-syntax ()
   "Extracted DSL compiler should preserve existing ebox-build syntax."
   (let ((node (ebox-build
diff --git a/tests/ebox-flex-tests.el b/tests/ebox-flex-tests.el
index 9884a05..1c48e04 100644
--- a/tests/ebox-flex-tests.el
+++ b/tests/ebox-flex-tests.el
@@ -416,7 +416,7 @@
                    :padding (0 (10)) :border "#5E7F6A"
                    :text-align center)
               (flex :id "body" :max-width (293) :padding (0 (8))
-                    :border "#5E7F6A" :border-top-p nil
+                    :border "#5E7F6A" :border-top none
                     :flex-wrap wrap :column-gap (8)
                     (item :flex-shrink 0
                           (box :content "A 118" :width (118)))
@@ -439,14 +439,14 @@
          (layout
           (ebox-build
            '(flex :flex-flow (row wrap) :row-gap 1 :column-gap (12)
-             :padding (0 (12)) :border "#6F6A95" :border-top-p nil
+             :padding (0 (12)) :border "#6F6A95" :border-top none
              :bgcolor "#FBF9FF"
              (column
               (box :content ":flex-flow (row wrap)" :max-width (440)
                    :padding (0 (10)) :border "#6F6A95"
                    :text-align center)
               (flex :max-width (440) :padding (0 (8))
-                    :border "#6F6A95" :border-top-p nil
+                    :border "#6F6A95" :border-top none
                     :flex-flow (row wrap) :gap (1 (12))
                     (item (box :content "A" :width (170)))
                     (item (box :content "B" :width (170)))
@@ -456,7 +456,7 @@
                    :padding (0 (10)) :border "#6F6A95"
                    :text-align center)
               (flex :max-width (440) :padding (0 (8))
-                    :border "#6F6A95" :border-top-p nil
+                    :border "#6F6A95" :border-top none
                     :flex-flow (column wrap) :gap (1 (12))
                     (item (box :content "A" :width (140)))
                     (item (box :content "B" :width (140)))
diff --git a/tests/ebox-package-tests.el b/tests/ebox-package-tests.el
index 430fb8d..8d48c46 100644
--- a/tests/ebox-package-tests.el
+++ b/tests/ebox-package-tests.el
@@ -11,10 +11,12 @@
 
 (defconst ebox-test--autoload-source-files
   '("ebox.el"
+    "ebox-node-factory.el"
     "ebox-measure.el"
     "ebox-layout.el"
     "ebox-flex.el"
     "ebox-grid.el"
+    "ebox-canonical.el"
     "ebox-buffer-backend.el"
     "ebox-selector.el"
     "ebox-native-reflow.el")
@@ -49,12 +51,34 @@
   "The public ebox facade should load all internal foundation modules."
   (require 'ebox)
   (dolist (feature '(ebox-cache ebox-style ebox-tree ebox-measure
+                                ebox-node-factory
                                 ebox-fragment ebox-layout ebox-flex ebox-grid
+                                ebox-canonical
                                 ebox-buffer-backend ebox-incremental
                                 ebox-surface ebox-viewport ebox-dsl
                                 ebox-selector))
     (should (featurep feature))))
 
+(ert-deftest ebox-canonical-module-loads-typed-port-without-facade ()
+  "The canonical autoload boundary should not depend on loading `ebox.el'."
+  (let* ((emacs (expand-file-name invocation-name invocation-directory))
+         (parent (file-name-directory (directory-file-name ebox-test--root)))
+         (ecss (expand-file-name "ecss" parent))
+         (tp (expand-file-name "tp" parent)))
+    (with-temp-buffer
+      (should
+       (zerop
+        (process-file
+         emacs nil (current-buffer) nil
+         "-Q" "--batch"
+         "-L" ebox-test--root "-L" ecss "-L" tp
+         "--eval" "(setq load-prefer-newer t)"
+         "--eval"
+         (concat
+          "(progn (require 'ebox-canonical) "
+          "(unless (ebox-text-node-p (ebox-text-create :value \"A\")) "
+          "  (error \"Typed Text autoload failed\")))")))))))
+
 (ert-deftest ebox-facade-exposes-native-workflow-without-loading-it ()
   "The two native commands should be available without native load work."
   (require 'ebox)
@@ -67,10 +91,12 @@
   (should (commandp 'ebox-byte-compile))
   (should
    (equal ebox--compile-sources
-          '("ebox-cache.el" "ebox-style.el" "ebox-child-range.el"
+          '("ebox-cache.el" "ebox-style.el" "ebox-node-factory.el"
+            "ebox-child-range.el"
             "ebox-tree.el" "ebox-measure.el"
             "ebox-fragment.el" "ebox-render-context.el" "ebox-layout.el"
-            "ebox-flex.el" "ebox-grid.el" "ebox-buffer-backend.el" "ebox-incremental.el"
+            "ebox-flex.el" "ebox-grid.el" "ebox-canonical.el"
+            "ebox-buffer-backend.el" "ebox-incremental.el"
             "ebox-native-commit.el" "ebox-surface.el" "ebox-viewport.el"
             "ebox-dsl.el" "ebox-selector.el" "ebox.el"
             "ebox-native-reflow.el"))))
@@ -143,6 +169,9 @@
                      ("ebox-grid-fr" . "defun")
                      ("ebox-grid-item" . "defun")
                      ("ebox-grid" . "defun")
+                     ("ebox-normal-layout-create" . "defun")
+                     ("ebox-text-create" . "defun")
+                     ("ebox-box-create" . "defun")
                      ("ebox-build" . "defun")
                      ("ebox-create" . "defun")
                      ("ebox-scroll-down" . "defun")
@@ -178,6 +207,9 @@
                    ebox-candidate-replace-host-ref
                    ebox-clear-cache
                    ebox-column
+                   ebox-normal-layout-create
+                   ebox-text-create
+                   ebox-box-create
                    ebox-commit
                    ebox-concat
                    ebox-create