diff --git a/scripts/gga-review.sh b/scripts/gga-review.sh
index 08ceb4ad31..a8582c69df 100755
--- a/scripts/gga-review.sh
+++ b/scripts/gga-review.sh
@@ -1,12 +1,16 @@
 #!/bin/bash
 # Gentleman Guardian Angel (gga) - AI Code Review Hook
 # This script is called by pre-commit after all formatters/linters have run
+#
+# Only reviews files in directories that have an AGENTS.md file.
+# This allows teams to opt-in to AI code review by adding AGENTS.md to their component.
 
 set -e
 
 # Colors
 YELLOW='\033[1;33m'
 BLUE='\033[0;34m'
+GREEN='\033[0;32m'
 NC='\033[0m'
 
 # Check if AI code review is enabled
@@ -15,6 +19,50 @@ if [ "${CODE_REVIEW_ENABLED:-false}" != "true" ]; then
     exit 0
 fi
 
+# Check if AGENTS-CODE-REVIEW.md exists
+if [ ! -f "AGENTS-CODE-REVIEW.md" ]; then
+    echo -e "${YELLOW}⏭️  AI code review skipped (AGENTS-CODE-REVIEW.md not found)${NC}"
+    exit 0
+fi
+
+# Get staged files
+STAGED_FILES=$(git diff --cached --name-only --diff-filter=ACM | grep -E '\.(ts|tsx|js|jsx|py)$' || true)
+
+if [ -z "$STAGED_FILES" ]; then
+    echo -e "${YELLOW}⏭️  No matching files staged for AI review${NC}"
+    exit 0
+fi
+
+# Filter out files from directories without AGENTS.md (opt-in model)
+FILES_TO_REVIEW=""
+SKIPPED_DIRS=""
+
+for file in $STAGED_FILES; do
+    # Get the top-level directory of the file
+    TOP_DIR=$(echo "$file" | cut -d'/' -f1)
+
+    # Check if this directory has an AGENTS.md file
+    if [ -f "${TOP_DIR}/AGENTS.md" ]; then
+        FILES_TO_REVIEW="$FILES_TO_REVIEW $file"
+    else
+        # Track skipped directories (only unique)
+        if [[ ! "$SKIPPED_DIRS" =~ $TOP_DIR ]]; then
+            SKIPPED_DIRS="$SKIPPED_DIRS $TOP_DIR"
+        fi
+    fi
+done
+
+# Report skipped directories
+if [ -n "$SKIPPED_DIRS" ]; then
+    echo -e "${YELLOW}ℹ️  Skipping directories without AGENTS.md:${SKIPPED_DIRS}${NC}"
+fi
+
+# Check if there are files to review after filtering
+if [ -z "$(echo "$FILES_TO_REVIEW" | tr -d ' ')" ]; then
+    echo -e "${GREEN}✅ No files to review (all staged files are in directories without AGENTS.md)${NC}"
+    exit 0
+fi
+
 # Install gga if not present
 if ! command -v gga &> /dev/null; then
     echo -e "${BLUE}📦 Installing Gentleman Guardian Angel (gga)...${NC}"