Add gatekeeper rerun workflow and docs-only skip

.github/workflows/ai-gatekeeper-rerun.yaml

@@ -0,0 +1,21 @@
+name: Bot Gatekeeper Rerun
+on:
+  pull_request_review:
+    types: [submitted]
+
+permissions:
+  actions: write
+  pull-requests: read
+
+jobs:
+  rerun:
+    if: ${{ github.event.review.state == 'approved' }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Re-run gatekeeper on review change
+        env:
+          GH_TOKEN: ${{ github.token }}
+          PR: ${{ github.event.pull_request.number }}
+          REF: ${{ github.event.pull_request.head.sha }}
+        run: |
+          gh workflow run ai-gatekeeper.yaml --ref "$REF" -f pr="$PR"

.github/workflows/ai-gatekeeper.yaml

@@ -5,6 +5,11 @@ on:
   pull_request_review:
     types: [submitted, edited, dismissed]
   workflow_dispatch:
+    inputs:
+      pr:
+        description: "PR number"
+        required: true
+        type: string
 
 permissions:
   contents: read
@@ -22,11 +27,29 @@ jobs:
       run:
         shell: bash
     steps:
+      - name: Skip docs-only changes
+        env:
+          GH_TOKEN: ${{ github.token }}
+          PR: ${{ github.event.pull_request.number || github.event.inputs.pr }}
+          REPO: ${{ github.repository }}
+        run: |
+          FILES=$(gh pr view "$PR" --repo "$REPO" --json files --jq '.files[].path')
+          if [ -z "$FILES" ]; then
+            echo "No files found; continuing."
+            exit 0
+          fi
+
+          NON_DOCS=$(echo "$FILES" | grep -Ev '^(docs/|README|.*\.md$)' || true)
+          if [ -z "$NON_DOCS" ]; then
+            echo "✅ Docs-only changes. Skipping gatekeeper."
+            exit 0
+          fi
+
       - name: Analyze Authorship and Approvals
         id: check
         env:
           GH_TOKEN: ${{ github.token }}
-          PR: ${{ github.event.pull_request.number }}
+          PR: ${{ github.event.pull_request.number || github.event.inputs.pr }}
           REPO: ${{ github.repository }}
         run: |
           # 1. Fetch PR Data