diff --git a/.gitea/workflows/pr-pipeline.yaml b/.gitea/workflows/pr-pipeline.yaml
index a52a61b..8dbfc2e 100644
--- a/.gitea/workflows/pr-pipeline.yaml
+++ b/.gitea/workflows/pr-pipeline.yaml
@@ -19,55 +19,73 @@ jobs:
   auth:
     runs-on: ubuntu-latest
     steps:
-      - name: Authorization check
+      - name: Checkout repository
         run: |
-          [ -f scripts/prose-auth-check.sh ] || { echo "✅ No auth script — skipping"; exit 0; }
-          bash scripts/prose-auth-check.sh
+          git clone --depth=50 "https://${{ gitea.server_url }}/${{ gitea.repository }}.git" .
+          git fetch origin "${{ gitea.ref }}" --depth=50
+          git checkout "${{ gitea.sha }}"
+
+      - name: Authorization check
+        run: bash scripts/prose-auth-check.sh
 
   validate:
     runs-on: ubuntu-latest
     needs: auth
     steps:
+      - name: Checkout repository
+        run: |
+          git clone --depth=50 "https://${{ gitea.server_url }}/${{ gitea.repository }}.git" .
+          git fetch origin "${{ gitea.ref }}" --depth=50
+          git checkout "${{ gitea.sha }}"
+
       - name: YAML frontmatter validation
         run: |
           echo "=== Prose Contract Frontmatter Validation ==="
           FAILED=0
           for f in $(find . -name "*.prose.md" -not -path "./.git/*" -not -path "./runs/*"); do
             FM=$(sed -n '/^---$/,/^---$/p' "$f" | sed '1d;$d')
-            [ -z "$FM" ] && { echo "  ❌ $f: No YAML frontmatter"; FAILED=1; continue; }
+            [ -z "$FM" ] && { echo "  ❌ $f: No YAML frontmatter"; FAILED=$((FAILED+1)); continue; }
 
             KIND=$(echo "$FM" | grep '^kind:' | awk '{print $2}')
             case "$KIND" in
               function|responsibility|gateway|pattern|test|template|architecture|enforcement) echo "  ✅ $f: kind=$KIND" ;;
-              *) echo "  ❌ $f: Invalid kind='$KIND'"; FAILED=1 ;;
+              *) echo "  ❌ $f: Invalid kind='$KIND'"; FAILED=$((FAILED+1)) ;;
             esac
 
-            echo "$FM" | grep -q '^name:' || { echo "  ❌ $f: Missing name"; FAILED=1; }
-            echo "$FM" | grep -q '^description:' || { echo "  ❌ $f: Missing description"; FAILED=1; }
+            echo "$FM" | grep -q '^name:' || { echo "  ❌ $f: Missing name"; FAILED=$((FAILED+1)); }
+            echo "$FM" | grep -q '^description:' || { echo "  ❌ $f: Missing description"; FAILED=$((FAILED+1)); }
           done
-          [ $FAILED -eq 1 ] && { echo "❌ FRONTMATTER FAILED"; exit 1; }
+          [ $FAILED -gt 0 ] && { echo "❌ FRONTMATTER FAILED ($FAILED error(s))"; exit 1; }
           echo "✅ Frontmatter validation passed"
 
   lint:
     runs-on: ubuntu-latest
     needs: validate
     steps:
-      - name: Structure + regression + consistency lint
+      - name: Checkout repository
         run: |
-          [ -f scripts/prose-lint.sh ] || { echo "✅ No lint script — skipping"; exit 0; }
-          bash scripts/prose-lint.sh
+          git clone --depth=50 "https://${{ gitea.server_url }}/${{ gitea.repository }}.git" .
+          git fetch origin "${{ gitea.ref }}" --depth=50
+          git checkout "${{ gitea.sha }}"
+
+      - name: Structure + regression + consistency lint
+        run: bash scripts/prose-lint.sh
 
   ai-review:
     runs-on: ubuntu-latest
     needs: validate
     steps:
+      - name: Checkout repository
+        run: |
+          git clone --depth=50 "https://${{ gitea.server_url }}/${{ gitea.repository }}.git" .
+          git fetch origin "${{ gitea.ref }}" --depth=50
+          git checkout "${{ gitea.sha }}"
+
       - name: AI-powered contract review
         env:
           LITELLM_URL: ${{ secrets.LITELLM_URL }}
           LITELLM_KEY: ${{ secrets.LITELLM_KEY }}
-        run: |
-          [ -f scripts/prose-ai-review.sh ] || { echo "✅ No AI review script — skipping"; exit 0; }
-          bash scripts/prose-ai-review.sh
+        run: bash scripts/prose-ai-review.sh
 
   gate:
     runs-on: ubuntu-latest