diff --git a/.mokogitea/workflows/pr-check.yml b/.mokogitea/workflows/pr-check.yml
index 7eb9267..ea00588 100644
--- a/.mokogitea/workflows/pr-check.yml
+++ b/.mokogitea/workflows/pr-check.yml
@@ -108,11 +108,8 @@ jobs:
       - name: Detect platform
         id: platform
         run: |
-          # Read platform from XML manifest (<platform> tag) or plain text fallback
-          MANIFEST_FILE=".mokogitea/.manifest.xml"
-          [ ! -f "$MANIFEST_FILE" ] && MANIFEST_FILE=".mokogitea/.moko-platform"
-          PLATFORM=$(sed -n 's/.*<platform>\([^<]*\)<\/platform>.*/\1/p' "$MANIFEST_FILE" 2>/dev/null | head -1)
-          [ -z "$PLATFORM" ] && PLATFORM=$(cat "$MANIFEST_FILE" 2>/dev/null | tr -d '[:space:]')
+          # Parse manifest for platform detection
+          PLATFORM=$(php /tmp/mokostandards-api/cli/manifest_read.php --path . --field platform 2>/dev/null)
           [ -z "$PLATFORM" ] && PLATFORM="generic"
           echo "platform=$PLATFORM" >> "$GITHUB_OUTPUT"