diff --git a/.github/workflows/post_ci_status.yml b/.github/workflows/post_ci_status.yml
deleted file mode 100644
index 1f24592c800..00000000000
--- a/.github/workflows/post_ci_status.yml
+++ /dev/null
@@ -1,110 +0,0 @@
-#
-# Copyright (c) 2025, RT-Thread Development Team
-#
-# SPDX-License-Identifier: Apache-2.0
-#
-# Change Logs:
-# Date           Author       Notes
-# 2025-10-27     GitHub Copilot  Reusable workflow to post CI status
-
-name: Post CI Status Comment
-
-# on:
-#   workflow_call:
-#     inputs:
-#       workflow_name:
-#         description: 'Name of the workflow'
-#         required: true
-#         type: string
-#       workflow_status:
-#         description: 'Status of the workflow (success/failure)'
-#         required: true
-#         type: string
-#       pr_number:
-#         description: 'Pull request number'
-#         required: true
-#         type: number
-
-permissions:
-  pull-requests: write
-  issues: write
-
-jobs:
-  post-comment:
-    runs-on: ubuntu-22.04
-    if: github.repository_owner == 'RT-Thread'
-    steps:
-      - name: Post or update CI status comment
-        uses: actions/github-script@v7
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          script: |
-            const prNumber = ${{ inputs.pr_number }};
-            const workflowName = '${{ inputs.workflow_name }}';
-            const workflowStatus = '${{ inputs.workflow_status }}';
-            
-            // Status emoji mapping
-            const statusEmoji = workflowStatus === 'success' ? '✅' : '❌';
-            const timestamp = new Date().toISOString();
-            
-            // Try to find existing comment
-            const comments = await github.rest.issues.listComments({
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              issue_number: prNumber
-            });
-            
-            const botComment = comments.data.find(comment => 
-              comment.user.login === 'github-actions[bot]' && 
-              comment.body.includes('<!-- CI Status Comment -->')
-            );
-            
-            // Get all workflow runs for this PR to build comprehensive status
-            let allStatuses = {};
-            
-            if (botComment) {
-              // Parse existing statuses from comment
-              const statusRegex = /- (✅|❌|🟡) \*\*(.+?)\*\*/g;
-              let match;
-              while ((match = statusRegex.exec(botComment.body)) !== null) {
-                allStatuses[match[2]] = match[1];
-              }
-            }
-            
-            // Update current workflow status
-            allStatuses[workflowName] = statusEmoji;
-            
-            // Build comment body
-            let commentBody = '<!-- CI Status Comment -->\n';
-            commentBody += '## 🤖 CI Test Results\n\n';
-            commentBody += `**Last Updated:** ${timestamp}\n\n`;
-            commentBody += '### Workflow Status:\n\n';
-            
-            for (const [name, emoji] of Object.entries(allStatuses)) {
-              commentBody += `- ${emoji} **${name}**\n`;
-            }
-            
-            commentBody += '\n---\n';
-            commentBody += '✅ Success | ❌ Failure | 🟡 In Progress\n\n';
-            commentBody += '*This comment is automatically updated as CI workflows complete.*\n';
-            
-            if (botComment) {
-              // Update existing comment
-              await github.rest.issues.updateComment({
-                owner: context.repo.owner,
-                repo: context.repo.repo,
-                comment_id: botComment.id,
-                body: commentBody
-              });
-              console.log(`Updated comment ${botComment.id} on PR #${prNumber}`);
-            } else {
-              // Create new comment
-              await github.rest.issues.createComment({
-                owner: context.repo.owner,
-                repo: context.repo.repo,
-                issue_number: prNumber,
-                body: commentBody
-              });
-              console.log(`Created new comment on PR #${prNumber}`);
-            }