diff --git a/.github/workflows/pr-codex-review.yml b/.github/workflows/pr-codex-review.yml
index 99d3790..8a8c65e 100644
--- a/.github/workflows/pr-codex-review.yml
+++ b/.github/workflows/pr-codex-review.yml
@@ -4,6 +4,7 @@ on:
   pull_request:
     types: [opened, reopened, ready_for_review, synchronize]
 
+
 permissions:
   contents: read
   pull-requests: write
@@ -19,6 +20,7 @@ jobs:
         | All files | No actionable feedback generated | None | info |
       AZURE_OPENAI_BASE_URL: ${{ secrets.AZURE_OPENAI_BASE_URL }}
       AZURE_OPENAI_MODEL: ${{ secrets.AZURE_OPENAI_MODEL || 'gpt-5-codex' }}
+      AZURE_OPENAI_API_KEY: ${{ secrets.AZURE_OPENAI_API_KEY }}
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -43,13 +45,11 @@ jobs:
       - name: Prepare fallback review
         if: steps.diff.outputs.no_changes == 'true'
         run: |
-          printf '%s' "$REVIEW_TABLE_FALLBACK" > codex_review.md
-          cp codex_review.md review_result.md
+          printf '%s' "$REVIEW_TABLE_FALLBACK" > raw_review.md
+          cp raw_review.md review_result.md
 
       - name: Install Codex CLI
         if: steps.diff.outputs.no_changes == 'false'
-        env:
-          AZURE_OPENAI_BASE_URL: ${{ secrets.AZURE_OPENAI_BASE_URL }}
         run: |
           sudo apt-get update
           sudo apt-get install -y --no-install-recommends curl ca-certificates git
@@ -75,8 +75,6 @@ jobs:
 
       - name: Run Codex code review
         if: steps.diff.outputs.no_changes == 'false'
-        env:
-          AZURE_OPENAI_API_KEY: ${{ secrets.AZURE_OPENAI_API_KEY }}
         run: |
           if [ -z "$AZURE_OPENAI_API_KEY" ]; then
             echo "AZURE_OPENAI_API_KEY secret is not configured." >&2
@@ -97,16 +95,14 @@ jobs:
 
           printf '\n\nRaw Codex Output:\n%s\n' "$(cat codex_raw.txt)"
 
-          sed -E 's/\x1B\[[0-9;]*[A-Za-z]//g' codex_raw.txt | tr -d '\r' > codex_review.md
+          sed -E 's/\x1B\[[0-9;]*[A-Za-z]//g' codex_raw.txt | tr -d '\r' > raw_review.md
 
-          if ! grep -q '|' codex_review.md; then
-            printf '%s\n' "$REVIEW_TABLE_FALLBACK" > codex_review.md
+          if ! grep -q '|' raw_review.md; then
+            printf '%s\n' "$REVIEW_TABLE_FALLBACK" > raw_review.md
           fi
 
       - name: Normalize review table with Azure OpenAI
-        if: steps.diff.outputs.no_changes == 'false'
-        env:
-          AZURE_OPENAI_API_KEY: ${{ secrets.AZURE_OPENAI_API_KEY }}
+        if: steps.diff.outputs.no_changes == 'false'          
         run: |
           python3 -m pip install --quiet --upgrade pip 'openai>=1.45.0'
           python3 scripts/normalize_review_result.py
@@ -117,13 +113,16 @@ jobs:
         run: |
           if [ -f review_result.md ]; then
             BODY_FILE=review_result.md
-          elif [ -f codex_review.md ]; then
-            BODY_FILE=codex_review.md
+          elif [ -f raw_review.md ]; then
+            BODY_FILE=raw_review.md
           else
             printf '%s' "$REVIEW_TABLE_FALLBACK" > review_result.md
             BODY_FILE=review_result.md
           fi
 
+          # Append attribution footer to the comment body
+          printf '\n\nReviewed by Codex\n' >> "$BODY_FILE"
+
           gh pr comment ${{ github.event.pull_request.number }} --body-file "$BODY_FILE"
 
       - name: Upload Codex raw output
@@ -133,7 +132,7 @@ jobs:
           name: codex-review-logs
           path: |
             codex_raw.txt
-            codex_review.md
+            raw_review.md
             review_result.md
             diff.patch
             changed_files.txt
diff --git a/.github/workflows/pr-copilot-review.yml b/.github/workflows/pr-copilot-review.yml
new file mode 100644
index 0000000..a57161f
--- /dev/null
+++ b/.github/workflows/pr-copilot-review.yml
@@ -0,0 +1,128 @@
+name: PR Copilot Review
+
+on:
+  pull_request:
+    types: [opened, reopened, ready_for_review, synchronize]
+
+
+permissions:
+  contents: read
+  pull-requests: write
+
+jobs:
+  copilot_pr_review:
+    name: Copilot PR Review
+    runs-on: ubuntu-latest
+    env:
+      REVIEW_TABLE_FALLBACK: |
+        | File | Concern | Recommendation | Severity |
+        | --- | --- | --- | --- |
+        | All files | No actionable feedback generated | None | info |
+      AZURE_OPENAI_BASE_URL: ${{ secrets.AZURE_OPENAI_BASE_URL }}
+      AZURE_OPENAI_MODEL: ${{ secrets.AZURE_OPENAI_MODEL || 'gpt-5-codex' }}
+      AZURE_OPENAI_API_KEY: ${{ secrets.AZURE_OPENAI_API_KEY }}
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '22'
+
+      - name: Compute diff and changed files
+        id: diff
+        run: |
+          BASE_SHA="${{ github.event.pull_request.base.sha }}"
+          HEAD_SHA="${{ github.event.pull_request.head.sha }}"
+
+          git diff --name-only "$BASE_SHA" "$HEAD_SHA" > changed_files.txt
+          git diff --unified=3 "$BASE_SHA" "$HEAD_SHA" > diff.patch
+
+          if [ ! -s changed_files.txt ]; then
+            echo "no_changes=true" >> "$GITHUB_OUTPUT"
+          else
+            echo "no_changes=false" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Prepare fallback review
+        if: steps.diff.outputs.no_changes == 'true'
+        run: |
+          printf '%s' "$REVIEW_TABLE_FALLBACK" > raw_review.md
+          cp raw_review.md review_result.md
+
+      - name: Install Copilot CLI
+        env:
+            GITHUB_TOKEN: ${{ secrets.COPILOT_CLI_PAT }}
+        if: steps.diff.outputs.no_changes == 'false'
+        run: |
+          npm install -g @github/copilot
+          copilot --version
+
+      - name: Run Copilot code review
+        env:
+            GITHUB_TOKEN: ${{ secrets.COPILOT_CLI_PAT }}
+        if: steps.diff.outputs.no_changes == 'false'
+        run: |
+          if [ -z "$AZURE_OPENAI_API_KEY" ]; then
+            echo "AZURE_OPENAI_API_KEY secret is not configured." >&2
+            exit 1
+          fi
+
+          HEADER="You are an expert software engineer performing a strict code review for the provided pull request diff."
+          RULES="Rules:\n- Output ONLY a GitHub-flavored Markdown table with exactly these columns: File | Concern | Recommendation | Severity.\n- Every row must reference a real file path from the Changed files list.\n- Severity must be one of: info, minor, major, critical.\n- If no issues are found, return a single table row with 'All files' in the File column and 'No issues found' in the Concern column.\n- Cite line numbers from the diff using the format L<line>.\n- Do not wrap the table in backticks or add any prose before or after the table.\n- Focus on actionable feedback specific to the diff."
+
+          CHANGED_FILES_SECTION="Changed files:\n$(cat changed_files.txt)"
+          DIFF_SECTION="Unified diff:\n$(cat diff.patch)"
+
+          export COPILOT_PROMPT="$HEADER\n\n$RULES\n\n$CHANGED_FILES_SECTION\n\n$DIFF_SECTION"
+
+          printf '%s\n' "$COPILOT_PROMPT"
+
+          copilot -p "$COPILOT_PROMPT" | tee copilot_raw.txt >/dev/null
+
+          printf '\n\nRaw Copilot Output:\n%s\n' "$(cat copilot_raw.txt)"
+
+          sed -E 's/\x1B\[[0-9;]*[A-Za-z]//g' copilot_raw.txt | tr -d '\r' > raw_review.md
+
+          if ! grep -q '|' raw_review.md; then
+            printf '%s\n' "$REVIEW_TABLE_FALLBACK" > raw_review.md
+          fi
+
+      - name: Normalize review table with Azure OpenAI
+        if: steps.diff.outputs.no_changes == 'false'          
+        run: |
+          python3 -m pip install --quiet --upgrade pip 'openai>=1.45.0'
+          python3 scripts/normalize_review_result.py
+
+      - name: Post review as PR comment
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          if [ -f review_result.md ]; then
+            BODY_FILE=review_result.md
+          elif [ -f raw_review.md ]; then
+            BODY_FILE=raw_review.md
+          else
+            printf '%s' "$REVIEW_TABLE_FALLBACK" > review_result.md
+            BODY_FILE=review_result.md
+          fi
+
+          # Append attribution footer to the comment body
+          printf '\n\nReviewed by GitHub Copilot CLI\n' >> "$BODY_FILE"
+
+          gh pr comment ${{ github.event.pull_request.number }} --body-file "$BODY_FILE"
+
+      - name: Upload Copilot raw output
+        if: steps.diff.outputs.no_changes == 'false'
+        uses: actions/upload-artifact@v4
+        with:
+          name: copilot-review-logs
+          path: |
+            copilot_raw.txt
+            raw_review.md
+            review_result.md
+            diff.patch
+            changed_files.txt
diff --git a/scripts/normalize_review_result.py b/scripts/normalize_review_result.py
index a5299ec..b6a5aa6 100644
--- a/scripts/normalize_review_result.py
+++ b/scripts/normalize_review_result.py
@@ -39,9 +39,9 @@ def require_env(name: str) -> str:
 
 
 def main() -> None:
-    source_path = Path("codex_review.md")
+    source_path = Path("raw_review.md")
     if not source_path.exists():
-        print("codex_review.md not found; cannot repair review output.", file=sys.stderr)
+        print("raw_review.md not found; cannot repair review output.", file=sys.stderr)
         raise SystemExit(1)
 
     source_text = source_path.read_text(encoding="utf-8")