diff --git a/packages/desktop-app/src/lib/design/components/code-block-node.svelte b/packages/desktop-app/src/lib/design/components/code-block-node.svelte
index 6f40f0383..6d6148d59 100644
--- a/packages/desktop-app/src/lib/design/components/code-block-node.svelte
+++ b/packages/desktop-app/src/lib/design/components/code-block-node.svelte
@@ -69,14 +69,11 @@
 
   const dispatch = createEventDispatcher();
 
-  // Internal reactive state - sync with content prop changes
+  // Internal reactive state - initialized from content prop
+  // Note: Content updates flow through handleContentChange event, not prop sync
+  // External changes are rare (only from parent re-renders) and handled by component remount
   let internalContent = $state(content);
 
-  // Sync internalContent when content prop changes externally
-  $effect(() => {
-    internalContent = content;
-  });
-
   // Parse language from opening fence (```language or just ```)
   let language = $state<string>(parseLanguage(content));
 
diff --git a/packages/desktop-app/src/lib/design/components/ordered-list-node.svelte b/packages/desktop-app/src/lib/design/components/ordered-list-node.svelte
index c0d92c9ce..43560cd08 100644
--- a/packages/desktop-app/src/lib/design/components/ordered-list-node.svelte
+++ b/packages/desktop-app/src/lib/design/components/ordered-list-node.svelte
@@ -44,17 +44,14 @@
   const NEWLINE_LENGTH = 1; // \n character
   const LIST_PREFIX_LENGTH = 3; // "1. " prefix length
 
-  // Internal reactive state - sync with content prop changes
+  // Internal reactive state - initialized from content prop
+  // Note: Content updates flow through handleContentChange event, not prop sync
+  // External changes are rare (only from parent re-renders) and handled by component remount
   let internalContent = $state(content);
 
   // Track if we just added prefixes (for cursor adjustment)
   let pendingCursorAdjustment = $state<number | null>(null);
 
-  // Sync internalContent when content prop changes externally
-  $effect(() => {
-    internalContent = content;
-  });
-
   // Ordered lists use multiline editing (Shift+Enter for new lines with auto "1. " prefix)
   // Prevent merging into ordered-lists (structured content can't accept arbitrary merges)
   const editableConfig = { allowMultiline: true, allowMergeInto: false };
diff --git a/packages/desktop-app/src/lib/design/components/quote-block-node.svelte b/packages/desktop-app/src/lib/design/components/quote-block-node.svelte
index 42d579eb1..d226e6bc4 100644
--- a/packages/desktop-app/src/lib/design/components/quote-block-node.svelte
+++ b/packages/desktop-app/src/lib/design/components/quote-block-node.svelte
@@ -45,17 +45,14 @@
   const NEWLINE_LENGTH = 1; // \n character
   const QUOTE_PREFIX_LENGTH = 2; // "> " prefix
 
-  // Internal reactive state - sync with content prop changes
+  // Internal reactive state - initialized from content prop
+  // Note: Content updates flow through handleContentChange event, not prop sync
+  // External changes are rare (only from parent re-renders) and handled by component remount
   let internalContent = $state(content);
 
   // Track if we just added prefixes (for cursor adjustment)
   let pendingCursorAdjustment = $state<number | null>(null);
 
-  // Sync internalContent when content prop changes externally
-  $effect(() => {
-    internalContent = content;
-  });
-
   // Quote blocks use multiline editing (Shift+Enter for new lines with auto > prefix)
   // Prevent merging into quote-blocks (structured content can't accept arbitrary merges)
   const editableConfig = { allowMultiline: true, allowMergeInto: false };