diff --git a/.github/workflows/pr-quality-gate.yml b/.github/workflows/pr-quality-gate.yml
new file mode 100644
index 0000000..a7f7778
--- /dev/null
+++ b/.github/workflows/pr-quality-gate.yml
@@ -0,0 +1,68 @@
+name: PR Quality Gate (client applications)
+
+on:
+  pull_request:
+    paths:
+      - "js/mobile/**"
+      - "js/desktop/**"
+    branches: [ main ]
+    types: [ opened, synchronize, reopened ]
+
+jobs:
+  mobile:
+    name: Lint & format check (mobile)
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: js/mobile
+
+    steps:
+      - name: Check out repository code
+        uses: actions/checkout@v4
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Enable Corepack
+        run: corepack enable
+
+      - name: Install dependencies
+        run: yarn install --immutable
+        
+      - name: Run Code Linter
+        run: yarn lint
+
+      - name: Run Unit Tests
+        run: yarn format:check
+
+  desktop:
+    name: Lint & format check (desktop)
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: js/desktop
+
+    steps:
+      - name: Check out repository code
+        uses: actions/checkout@v4
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Enable Corepack
+        run: corepack enable
+
+      - name: Install dependencies
+        run: yarn install --immutable
+
+      - name: Run Code Linter
+        run: yarn lint
+
+      - name: Run Unit Tests
+        run: yarn format:check
+
+
diff --git a/js/desktop/src/features/compose/compose-overlay.tsx b/js/desktop/src/features/compose/compose-overlay.tsx
index ccd4ef1..ef46124 100644
--- a/js/desktop/src/features/compose/compose-overlay.tsx
+++ b/js/desktop/src/features/compose/compose-overlay.tsx
@@ -412,7 +412,7 @@ export function ComposeOverlay({
     setStepSync,
     createChildParticle,
     cancel,
-    handleQuotaError
+    handleQuotaError,
   ]);
 
   // New stream mode: create stream + first child
diff --git a/js/desktop/src/features/particles/text-reaction-input.tsx b/js/desktop/src/features/particles/text-reaction-input.tsx
index c3dd3cc..e44b2c8 100644
--- a/js/desktop/src/features/particles/text-reaction-input.tsx
+++ b/js/desktop/src/features/particles/text-reaction-input.tsx
@@ -28,7 +28,7 @@ export function TextReactionInput({
 
     // NOTE: perform side effects here when opening
     if (open) {
-      setValue('')
+      setValue('');
     }
   }