diff --git a/.github/workflows/README.md b/.github/workflows/README.md
index 90b4292..cc751a7 100644
--- a/.github/workflows/README.md
+++ b/.github/workflows/README.md
@@ -2,6 +2,8 @@
 
 本项目使用两步 workflow 实现跨仓库 PR 的评论功能。
 
+> 测试评论功能：验证 PR Check Comment workflow 是否正常工作。
+
 ## Workflows
 
 ### 1. PR Check (`pr-check.yml`)
diff --git a/.github/workflows/pr-check-comment.yml b/.github/workflows/pr-check-comment.yml
index cba9e12..d8d3c3b 100644
--- a/.github/workflows/pr-check-comment.yml
+++ b/.github/workflows/pr-check-comment.yml
@@ -65,13 +65,13 @@ jobs:
             const marker = '<!-- duckcoding-pr-check -->';
             const platforms = ['ubuntu-22.04', 'windows-latest', 'macos-arm64', 'macos-x64'];
 
-            const prNumber = context.payload.workflow_run.pull_requests[0]?.number;
+            let prNumber = context.payload.workflow_run.pull_requests[0]?.number;
+
             if (!prNumber) {
-              console.log('No PR number found');
-              return;
+              console.log('PR number not in workflow_run payload, trying to extract from artifacts...');
             }
 
-            console.log('Updating comment for PR', prNumber);
+            console.log('Updating comment for PR', prNumber || '(to be determined)');
 
             const defaultState = () => Object.fromEntries(
               platforms.map(p => [p, {
@@ -96,6 +96,11 @@ jobs:
                     const platformState = JSON.parse(fs.readFileSync(stateFile, 'utf8'));
                     state[platform] = platformState;
                     console.log('Loaded state for', platform);
+
+                    if (!prNumber && platformState.pr_number) {
+                      prNumber = parseInt(platformState.pr_number, 10);
+                      console.log('Extracted PR number from artifact:', prNumber);
+                    }
                   } catch (e) {
                     console.error('Failed to parse state for', platform, e);
                   }
@@ -103,6 +108,11 @@ jobs:
               }
             }
 
+            if (!prNumber) {
+              console.log('No PR number found in payload or artifacts');
+              return;
+            }
+
             const statusLabelZh = (entry) => {
               if (entry.status === 'pending') return '⏳ 运行中...';
               if (entry.status === 'success') return '✅ 直接通过';
diff --git a/.github/workflows/pr-check.yml b/.github/workflows/pr-check.yml
index 54e73a1..ac8c86b 100644
--- a/.github/workflows/pr-check.yml
+++ b/.github/workflows/pr-check.yml
@@ -145,7 +145,8 @@ jobs:
             "recheck": "${{ steps.recheck.outcome }}",
             "artifact": "pr-check-${{ matrix.name }}",
             "run_url": "https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}",
-            "status": "${{ steps.check.outcome == 'success' && 'success' || (steps.check.outcome == 'failure' && steps.recheck.outcome == 'success' && 'fix_pass' || 'failed') }}"
+            "status": "${{ steps.check.outcome == 'success' && 'success' || (steps.check.outcome == 'failure' && steps.recheck.outcome == 'success' && 'fix_pass' || 'failed') }}",
+            "pr_number": "${{ github.event.pull_request.number }}"
           }
           EOF
           cat state.json