diff --git a/common/src/app/common/render_wasm/api/select.cljs b/common/src/app/common/render_wasm/api/select.cljs
new file mode 100644
index 0000000000..f461c06302
--- /dev/null
+++ b/common/src/app/common/render_wasm/api/select.cljs
@@ -0,0 +1,28 @@
+;; This Source Code Form is subject to the terms of the Mozilla Public
+;; License, v. 2.0. If a copy of the MPL was not distributed with this
+;; file, You can obtain one at http://mozilla.org/MPL/2.0/.
+;;
+;; Copyright (c) KALEIDOS SUBSIDIARY SL
+
+(ns app.common.render-wasm.api.select
+  "WASM cursor selection.
+  Note that setters in `app.common.render-wasm.api.props` assume the caller
+  selected first."
+  (:require
+   [app.common.render-wasm.helpers :as h]
+   [app.common.render-wasm.wasm :as wasm]
+   [app.common.uuid :as uuid]))
+
+(defn use-shape
+  "Makes the shape with `id` current in WASM so subsequent setters apply to it.
+  This is a no-op when there is no WASM context."
+  [id]
+  ;; Use `wasm/live?` (not `initialized?`) so context-restore reload can
+  ;; select shapes while `reloading?` still blocks external app callers.
+  (when (wasm/live?)
+    (let [buffer (uuid/get-u32 id)]
+      (h/call wasm/internal-module "_use_shape"
+              (aget buffer 0)
+              (aget buffer 1)
+              (aget buffer 2)
+              (aget buffer 3)))))
diff --git a/common/src/app/common/render_wasm/serialize_shape.cljs b/common/src/app/common/render_wasm/serialize_shape.cljs
index 07ce3697ab..1df4a84505 100644
--- a/common/src/app/common/render_wasm/serialize_shape.cljs
+++ b/common/src/app/common/render_wasm/serialize_shape.cljs
@@ -25,6 +25,7 @@
   dispatching per changed key through the same underlying `props` setters."
   (:require
    [app.common.render-wasm.api.props :as props]
+   [app.common.render-wasm.api.select :as wselect]
    [app.common.render-wasm.api.upload :as upload]
    [app.common.render-wasm.svg-derived :as svg-derived]))
 
@@ -62,15 +63,15 @@
   "Structural batch upload plus per-shape svg-attrs/path tail.
 
   Derives via svg-derived, uploads one `_set_shapes_batch` with `opts`,
-  then selects each shape needing svg-attrs/path content and applies it.
-  Host text/grid/image sequencing stays in callers. Returns the prepared
-  vector for the downstream host-attrs loop."
-  [shapes opts select-fn]
+  then selects each shape needing svg-attrs/path content via `use-shape!`
+  and applies the tail. Host text/grid/image sequencing stays in callers.
+  Returns the prepared vector for the downstream host-attrs loop."
+  [shapes opts]
   (let [prepared (mapv svg-derived/apply-svg-derived shapes)]
     (when (seq prepared)
       (upload/flush-shapes-batch! prepared opts)
       (doseq [shape prepared]
         (when (needs-shape-tail? shape)
-          (select-fn (:id shape))
+          (wselect/use-shape (:id shape))
           (write-shape-tail! shape))))
     prepared))
diff --git a/frontend/src/app/main/data/workspace/modifiers.cljs b/frontend/src/app/main/data/workspace/modifiers.cljs
index 47d97b4249..2cee1752a2 100644
--- a/frontend/src/app/main/data/workspace/modifiers.cljs
+++ b/frontend/src/app/main/data/workspace/modifiers.cljs
@@ -17,6 +17,7 @@
    [app.common.geom.shapes :as gsh]
    [app.common.logging :as log]
    [app.common.math :as mth]
+   [app.common.render-wasm.api.select :as wselect]
    [app.common.types.component :as ctk]
    [app.common.types.container :as ctn]
    [app.common.types.modifiers :as ctm]
@@ -813,7 +814,7 @@
           ;; propagating geometry, so propagate_modifiers sees the updated state.
           (doseq [[id {:keys [property value]}] (extract-property-changes modif-tree)]
             (when (= property :grow-type)
-              (wasm.api/use-shape id)
+              (wselect/use-shape id)
               (wasm.api/set-shape-grow-type value)))
 
           (let [objects (dsh/lookup-page-objects state)
diff --git a/frontend/src/app/main/data/workspace/transforms.cljs b/frontend/src/app/main/data/workspace/transforms.cljs
index 15990f2de3..5e5c033329 100644
--- a/frontend/src/app/main/data/workspace/transforms.cljs
+++ b/frontend/src/app/main/data/workspace/transforms.cljs
@@ -20,6 +20,7 @@
    [app.common.geom.shapes.grid-layout :as gslg]
    [app.common.logic.shapes :as cls]
    [app.common.math :as mth]
+   [app.common.render-wasm.api.select :as wselect]
    [app.common.types.component :as ctk]
    [app.common.types.container :as ctn]
    [app.common.types.modifiers :as ctm]
@@ -791,7 +792,7 @@
   [target-frame objects position]
   (if (features/active-feature? @st/state "render-wasm/v1")
     (do
-      (wasm.api/use-shape target-frame)
+      (wselect/use-shape target-frame)
       (let [cell (wasm.api/get-grid-coords position)]
         (when (not= cell [-1 -1]) cell)))
     (gslg/get-drop-cell target-frame objects position)))
diff --git a/frontend/src/app/main/data/workspace/wasm_text.cljs b/frontend/src/app/main/data/workspace/wasm_text.cljs
index ddd4f81400..3162656735 100644
--- a/frontend/src/app/main/data/workspace/wasm_text.cljs
+++ b/frontend/src/app/main/data/workspace/wasm_text.cljs
@@ -14,6 +14,7 @@
    [app.common.files.helpers :as cfh]
    [app.common.geom.matrix :as gmt]
    [app.common.geom.point :as gpt]
+   [app.common.render-wasm.api.select :as wselect]
    [app.common.types.modifiers :as ctm]
    [app.common.types.text :as ctt]
    [app.main.data.helpers :as dsh]
@@ -40,7 +41,7 @@
    ;; text shape is being edited): there is no design state to query, and
    ;; returning nil makes callers skip the WASM resize/modifier path.
    (when (and id (wasm.api/initialized?))
-     (wasm.api/use-shape id)
+     (wselect/use-shape id)
      ;; While the WASM text editor is actively editing it already holds the live
      ;; content and layout. Re-pushing the content here calls `_clear_shape_text`
      ;; + `_update_shape_text_layout`, which resets the editor and drops every
diff --git a/frontend/src/app/main/render_viewer_wasm.cljs b/frontend/src/app/main/render_viewer_wasm.cljs
index 9a6bca0d99..18b34fe5a1 100644
--- a/frontend/src/app/main/render_viewer_wasm.cljs
+++ b/frontend/src/app/main/render_viewer_wasm.cljs
@@ -9,6 +9,7 @@
   (:require
    [app.common.data.macros :as dm]
    [app.common.exceptions :as ex]
+   [app.common.render-wasm.api.select :as wselect]
    [app.common.render-wasm.wasm :as wasm]
    [app.render-wasm.api :as wasm.api]
    [app.util.dom :as dom]
@@ -83,14 +84,14 @@
   (when (seq include-ids)
     (wasm.api/set-render-include-filter! include-ids))
   (doseq [id clear-fills-ids]
-    (wasm.api/use-shape id)
+    (wselect/use-shape id)
     (wasm.api/clear-shape-fills!)))
 
 (defn- viewer-restore-layer-mask!
   [page-objects clear-fills-ids]
   (wasm.api/clear-render-include-filter!)
   (doseq [id clear-fills-ids]
-    (wasm.api/use-shape id)
+    (wselect/use-shape id)
     (wasm.api/set-shape-fills id (get-in page-objects [id :fills] []) false)))
 
 (defn- viewer-do-render!
diff --git a/frontend/src/app/main/ui/workspace/sidebar/options/menus/layer.cljs b/frontend/src/app/main/ui/workspace/sidebar/options/menus/layer.cljs
index c74fbdca56..eb8f59542b 100644
--- a/frontend/src/app/main/ui/workspace/sidebar/options/menus/layer.cljs
+++ b/frontend/src/app/main/ui/workspace/sidebar/options/menus/layer.cljs
@@ -9,6 +9,7 @@
   (:require
    [app.common.data :as d]
    [app.common.data.macros :as dm]
+   [app.common.render-wasm.api.select :as wselect]
    [app.main.data.workspace :as dw]
    [app.main.data.workspace.shapes :as dwsh]
    [app.main.data.workspace.tokens.application :as dwta]
@@ -116,7 +117,7 @@
 
            (when wasm-renderer-enabled?
              (doseq [id ids]
-               (wasm.api/use-shape id)
+               (wselect/use-shape id)
                (wasm.api/set-shape-blend-mode value)
                (wasm.api/request-render "preview-blend-mode")))
 
@@ -130,7 +131,7 @@
            (swap! state* assoc :preview-complete? true)
            (when wasm-renderer-enabled?
              (doseq [id ids]
-               (wasm.api/use-shape id)
+               (wselect/use-shape id)
                (wasm.api/set-shape-blend-mode current-blend-mode)
                (wasm.api/request-render "preview-blend-mode")))
            (st/emit! (dw/unset-preview-blend-mode ids))))
diff --git a/frontend/src/app/main/ui/workspace/viewport_wasm.cljs b/frontend/src/app/main/ui/workspace/viewport_wasm.cljs
index 39bbef583b..3705839275 100644
--- a/frontend/src/app/main/ui/workspace/viewport_wasm.cljs
+++ b/frontend/src/app/main/ui/workspace/viewport_wasm.cljs
@@ -11,6 +11,7 @@
    [app.common.data.macros :as dm]
    [app.common.files.helpers :as cfh]
    [app.common.geom.shapes :as gsh]
+   [app.common.render-wasm.api.select :as wselect]
    [app.common.types.color :as clr]
    [app.common.types.component :as ctk]
    [app.common.types.shape :as cts]
@@ -502,7 +503,7 @@
           (let [content (-> active-editor-state
                             (ted/get-editor-current-content)
                             (ted/export-content))]
-            (wasm.api/use-shape edition)
+            (wselect/use-shape edition)
             (wasm.api/set-shape-text-content edition content)
             (let [dimension (wasm.api/get-text-dimensions)]
               (st/emit! (dwt/resize-text-editor edition dimension))
@@ -651,12 +652,12 @@
 
     (mf/with-effect [path-editing? edition @initialized?]
       (when (and path-editing? edition @initialized?)
-        (wasm.api/use-shape edition)
+        (wselect/use-shape edition)
         (wasm.api/set-shape-hidden true)
         (wasm.api/request-render "start-path-edition")
         (fn []
           (when (wasm.api/initialized?)
-            (wasm.api/use-shape edition)
+            (wselect/use-shape edition)
             (wasm.api/set-shape-hidden false)
             (wasm.api/request-render "stop-path-edition")))))
 
diff --git a/frontend/src/app/render_wasm/api.cljs b/frontend/src/app/render_wasm/api.cljs
index 0c5a4c3d0b..dd5d75f4da 100644
--- a/frontend/src/app/render_wasm/api.cljs
+++ b/frontend/src/app/render_wasm/api.cljs
@@ -17,6 +17,7 @@
    [app.common.logging :as log]
    [app.common.math :as mth]
    [app.common.render-wasm.api.props :as props]
+   [app.common.render-wasm.api.select :as wselect]
    [app.common.render-wasm.helpers :as h]
    [app.common.render-wasm.mem :as mem]
    [app.common.render-wasm.mem.heap32 :as mem.h32]
@@ -727,18 +728,6 @@
 
 (declare get-text-dimensions)
 
-(defn use-shape
-  [id]
-  ;; Use `wasm/live?` (not `initialized?`) so context-restore reload can
-  ;; select shapes while `reloading?` still blocks external app callers.
-  (when (wasm/live?)
-    (let [buffer (uuid/get-u32 id)]
-      (h/call wasm/internal-module "_use_shape"
-              (aget buffer 0)
-              (aget buffer 1)
-              (aget buffer 2)
-              (aget buffer 3)))))
-
 (defn has-shape
   [id]
   (when (wasm/live?)
@@ -793,7 +782,7 @@
    Updates the cached content, pushes to WASM, and returns {:shape-id :content} for saving.
    `:with-fills?` also returns the selection's `:fills`."
   [styles & [opts]]
-  (let [result (text-editor/apply-styles-to-selection styles use-shape set-shape-text-content opts)]
+  (let [result (text-editor/apply-styles-to-selection styles wselect/use-shape set-shape-text-content opts)]
     (request-render "apply-styles-to-selection")
     result))
 
@@ -801,7 +790,7 @@
   "Apply paragraph attrs to the paragraphs the editor selection touches.
    Returns {:shape-id :content} for saving."
   [attrs]
-  (let [result (text-editor/apply-paragraph-attrs-to-selection attrs use-shape set-shape-text-content)]
+  (let [result (text-editor/apply-paragraph-attrs-to-selection attrs wselect/use-shape set-shape-text-content)]
     (request-render "apply-paragraph-attrs-to-selection")
     result))
 
@@ -811,7 +800,7 @@
   [shape-id range]
   (when-let [styles (text-editor/get-pending-caret-styles shape-id)]
     (let [result (text-editor/apply-styles-to-range
-                  shape-id range styles use-shape set-shape-text-content)]
+                  shape-id range styles wselect/use-shape set-shape-text-content)]
       (text-editor/clear-pending-caret-styles!)
       (request-render "apply-pending-caret-styles")
       result)))
@@ -1130,7 +1119,7 @@
   (h/call wasm/internal-module "_set_shape_hidden" hidden))
 
 (defn clear-shape-fills!
-  "Clear the fills of the currently-selected shape (call `use-shape` first).
+  "Clear the fills of the currently-selected shape (call `use-shape!` first).
   Equivalent to `set-shape-fills` with an empty collection."
   []
   (when (initialized?)
@@ -1407,7 +1396,7 @@
 
 (defn get-text-dimensions
   ([id]
-   (use-shape id)
+   (wselect/use-shape id)
    (get-text-dimensions))
   ([]
    (if-not (initialized?)
@@ -1588,7 +1577,7 @@
    `skip-fills-strokes?` is true, fill/stroke records were already in the batch;
    only image fetches remain.
 
-   Always `use-shape` first: after a multi-shape batch the WASM current shape is
+   Always `use-shape!` first: after a multi-shape batch the WASM current shape is
    the last record in the chunk, not this shape."
   [shape skip-layout? & {:keys [skip-fills-strokes?] :or {skip-fills-strokes? false}}]
   (let [id      (dm/get-prop shape :id)
@@ -1608,7 +1597,7 @@
                              true))]
 
     (when needs-current?
-      (use-shape id))
+      (wselect/use-shape id))
 
     (when (and (some? content) (= type :svg-raw))
       (set-shape-svg-raw-content (get-static-markup shape)))
@@ -1814,8 +1803,7 @@
         prepared  (serialize-shape/serialize-shapes-batch!
                    chunk
                    {:include-layout? true
-                    :include-fills-strokes? true}
-                   use-shape)]
+                    :include-fills-strokes? true})]
 
     (loop [xs prepared
            t-acc (transient thumbnails-acc)
@@ -1964,8 +1952,7 @@
   (let [prepared     (serialize-shape/serialize-shapes-batch!
                       shapes
                       {:include-layout? true
-                       :include-fills-strokes? true}
-                      use-shape)
+                       :include-fills-strokes? true})
         total-shapes (count prepared)
         {:keys [thumbnails full text-font-state]}
         (loop [index 0
@@ -2772,7 +2759,7 @@
 (defn shape-to-path
   [id]
   (when (initialized?)
-    (use-shape id)
+    (wselect/use-shape id)
     (try
       (let [offset (-> (h/call wasm/internal-module "_current_to_path")
                        (mem/->offset-32))
@@ -2796,7 +2783,7 @@
    the fill rule itself)."
   [id stroke-index]
   (when (initialized?)
-    (use-shape id)
+    (wselect/use-shape id)
     (try
       (let [offset    (-> (h/call wasm/internal-module "_convert_stroke_to_path" stroke-index)
                           (mem/->offset-32))
@@ -2886,7 +2873,7 @@
 (defn calculate-position-data
   [shape]
   (when (initialized?)
-    (use-shape (:id shape))
+    (wselect/use-shape (:id shape))
     (let [heapf32 (mem/get-heap-f32)
           heapu32 (mem/get-heap-u32)
           offset (-> (h/call wasm/internal-module "_calculate_position_data")
diff --git a/frontend/src/app/render_wasm/shape.cljs b/frontend/src/app/render_wasm/shape.cljs
index 995ea816cd..3d895841c8 100644
--- a/frontend/src/app/render_wasm/shape.cljs
+++ b/frontend/src/app/render_wasm/shape.cljs
@@ -9,6 +9,7 @@
    [app.common.data :as d]
    [app.common.data.macros :as dm]
    [app.common.files.helpers :as cfh]
+   [app.common.render-wasm.api.select :as wselect]
    [app.common.render-wasm.svg-derived :as svg-derived]
    [app.common.transit :as t]
    [app.common.types.shape :as shape]
@@ -321,7 +322,7 @@
   (let [shape-id (dm/get-prop shape :id)]
     (if (shape-in-current-page? shape-id)
       (do
-        (api/use-shape shape-id)
+        (wselect/use-shape shape-id)
         (->> properties
              (mapcat #(set-wasm-attr! shape %))
              (d/index-by :key :callback)
diff --git a/frontend/test/frontend_tests/helpers/wasm.cljs b/frontend/test/frontend_tests/helpers/wasm.cljs
index 82d4f8ab99..1c955c4d82 100644
--- a/frontend/test/frontend_tests/helpers/wasm.cljs
+++ b/frontend/test/frontend_tests/helpers/wasm.cljs
@@ -20,6 +20,7 @@
    verify the WASM code path was exercised."
   (:require
    [app.common.data :as d]
+   [app.common.render-wasm.api.select :as wselect]
    [app.render-wasm.api :as wasm.api]
    [app.render-wasm.api.fonts :as wasm.fonts]))
 
@@ -198,7 +199,7 @@
   ;; Save originals
   (reset! originals
           {:initialized?            wasm.api/initialized?
-           :use-shape               wasm.api/use-shape
+           :use-shape                wselect/use-shape
            :calculate-position-data wasm.api/calculate-position-data
            :request-render          wasm.api/request-render
            :clean-modifiers         wasm.api/clean-modifiers
@@ -217,7 +218,7 @@
            :get-content-fonts       wasm.fonts/get-content-fonts})
   ;; Install mocks
   (set! wasm.api/initialized?            mock-initialized?)
-  (set! wasm.api/use-shape               mock-use-shape)
+  (set! wselect/use-shape               mock-use-shape)
   (set! wasm.api/calculate-position-data mock-calculate-position-data)
   (set! wasm.api/request-render          mock-request-render)
   (set! wasm.api/clean-modifiers         mock-clean-modifiers)
@@ -248,7 +249,7 @@
   []
   (when-let [orig (not-empty @originals)]
     (set! wasm.api/initialized?            (:initialized? orig))
-    (set! wasm.api/use-shape               (:use-shape orig))
+    (set! wselect/use-shape               (:use-shape orig))
     (set! wasm.api/calculate-position-data (:calculate-position-data orig))
     (set! wasm.api/request-render          (:request-render orig))
     (set! wasm.api/clean-modifiers         (:clean-modifiers orig))
diff --git a/frontend/test/frontend_tests/render_wasm/serialization_test.cljs b/frontend/test/frontend_tests/render_wasm/serialization_test.cljs
index c067793ab9..cb5438d1ce 100644
--- a/frontend/test/frontend_tests/render_wasm/serialization_test.cljs
+++ b/frontend/test/frontend_tests/render_wasm/serialization_test.cljs
@@ -15,6 +15,7 @@
    render output below the FFI line needs headed or exporter pixel runs."
   (:require
    [app.common.render-wasm.api.props :as props]
+   [app.common.render-wasm.api.select :as wselect]
    [app.common.render-wasm.api.upload :as upload]
    [app.common.render-wasm.serialize-shape :as serialize-shape]
    [app.common.render-wasm.svg-derived :as svg-derived]
@@ -22,22 +23,26 @@
 
 (defn- with-ffi-stubs*
   "Stubs the single-arity FFI boundary fns (`flush-shapes-batch!`,
-  `set-shape-svg-attrs`, `set-shape-path-content`). `set-shape-upload!` is
-  deliberately left real: it is a trivial one-liner over the stubbed flush,
-  so the single test exercises its actual delegation and default opts. A
-  plain fn `set!` onto a multi-arity var breaks under the `:esm` test build
-  (call sites dispatch via `cljs$core$IFn$_invoke$arity$N`; see `mock/stub`)."
+  `use-shape!`, `set-shape-svg-attrs`, `set-shape-path-content`).
+  `set-shape-upload!` is deliberately left real: it is a trivial one-liner
+  over the stubbed flush, so the single test exercises its actual delegation
+  and default opts. A plain fn `set!` onto a multi-arity var breaks under
+  the `:esm` test build (call sites dispatch via
+  `cljs$core$IFn$_invoke$arity$N`; see `mock/stub`)."
   [stubs thunk]
   (let [orig-flush     upload/flush-shapes-batch!
+        orig-select    wselect/use-shape
         orig-svg-attrs props/set-shape-svg-attrs
         orig-path      props/set-shape-path-content]
     (set! upload/flush-shapes-batch! (:flush stubs))
+    (set! wselect/use-shape (or (:select stubs) (fn [_] nil)))
     (set! props/set-shape-svg-attrs (:svg-attrs stubs))
     (set! props/set-shape-path-content (:path stubs))
     (try
       (thunk)
       (finally
         (set! upload/flush-shapes-batch! orig-flush)
+        (set! wselect/use-shape orig-select)
         (set! props/set-shape-svg-attrs orig-svg-attrs)
         (set! props/set-shape-path-content orig-path)))))
 
@@ -109,14 +114,14 @@
         flush-calls (atom [])
         events (atom [])
         current (atom nil)
-        select-fn (fn [id]
-                    (reset! current id)
-                    (swap! events conj [:select id]))
         stubs {:flush (fn [s o] (swap! flush-calls conj {:shapes s :opts o}) nil)
+               :select (fn [id]
+                         (reset! current id)
+                         (swap! events conj [:select id]))
                :svg-attrs (fn [attrs] (swap! events conj [:svg-attrs @current attrs]) nil)
                :path (fn [content] (swap! events conj [:path @current content]) nil)}
         result (with-ffi-stubs* stubs
-                 #(serialize-shape/serialize-shapes-batch! shapes opts select-fn))
+                 #(serialize-shape/serialize-shapes-batch! shapes opts))
         flushed (first @flush-calls)]
     (t/is (= 1 (count @flush-calls)) "exactly one flush")
     (t/is (= opts (:opts flushed)) "flush carries passed opts")
@@ -152,13 +157,11 @@
         flush-calls (atom [])
         selected (atom [])
         stubs {:flush (fn [s o] (swap! flush-calls conj {:shapes s :opts o}) nil)
+               :select (fn [id] (swap! selected conj id))
                :svg-attrs (fn [_] (t/is false "no svg-attrs write on empty batch") nil)
                :path (fn [_] (t/is false "no path write on empty batch") nil)}
         result (with-ffi-stubs* stubs
-                 #(serialize-shape/serialize-shapes-batch!
-                   []
-                   opts
-                   (fn [id] (swap! selected conj id))))]
+                 #(serialize-shape/serialize-shapes-batch! [] opts))]
     (t/is (= [] result) "returns empty prepared")
     (t/is (empty? @flush-calls) "no flush on empty batch")
     (t/is (empty? @selected) "no select on empty batch")))