diff --git a/.github/scripts/check-permissions.js b/.github/scripts/check-permissions.js
new file mode 100644
index 000000000..0417990d5
--- /dev/null
+++ b/.github/scripts/check-permissions.js
@@ -0,0 +1,16 @@
+module.exports = async ({ github, context }) => {
+  try {
+    const permission = await github.rest.repos.getCollaboratorPermissionLevel({
+      owner: context.repo.owner,
+      repo: context.repo.repo,
+      username: context.actor
+    });
+    
+    const hasPermission = ['admin', 'write'].includes(permission.data.permission);
+    console.log(`User ${context.actor} has permission: ${permission.data.permission}`);
+    return hasPermission ? 'true' : 'false';
+  } catch (error) {
+    console.error('Error checking permissions:', error);
+    return 'false';
+  }
+};
diff --git a/.github/scripts/create-ci-pr.js b/.github/scripts/create-ci-pr.js
new file mode 100644
index 000000000..5555de5ad
--- /dev/null
+++ b/.github/scripts/create-ci-pr.js
@@ -0,0 +1,125 @@
+module.exports = async ({ github, context, core, exec }, prDetails) => {
+  const ciBranchName = `ci-test/${prDetails.number}`;
+  
+  // Add remote for the external fork if it's from a fork
+  if (prDetails.head_repo_full_name !== `${context.repo.owner}/${context.repo.repo}`) {
+    await exec.exec('git', ['remote', 'add', 'external', `https://github.com/${prDetails.head_repo_full_name}.git`]);
+    await exec.exec('git', ['fetch', 'external', prDetails.head_ref]);
+    await exec.exec('git', ['checkout', '-b', ciBranchName, `external/${prDetails.head_ref}`]);
+  } else {
+    await exec.exec('git', ['fetch', 'origin', prDetails.head_ref]);
+    await exec.exec('git', ['checkout', '-b', ciBranchName, `origin/${prDetails.head_ref}`]);
+  }
+  
+  // Push the branch to origin (force push to update if exists)
+  await exec.exec('git', ['push', '-f', 'origin', ciBranchName]);
+  
+  // Check if a CI PR already exists for this original PR
+  const existingPRs = await github.rest.pulls.list({
+    owner: context.repo.owner,
+    repo: context.repo.repo,
+    state: 'open',
+    head: `${context.repo.owner}:${ciBranchName}`
+  });
+  
+  let ciPR;
+  let isNewPR = false;
+  
+  if (existingPRs.data.length > 0) {
+    // Filter to find the CI test PR (should be labeled with 'ci-test')
+    const ciTestPR = existingPRs.data.find(pr => 
+      pr.labels.some(label => label.name === 'ci-test')
+    );
+    
+    if (ciTestPR) {
+      // Update existing PR
+      ciPR = ciTestPR;
+      await github.rest.pulls.update({
+        owner: context.repo.owner,
+        repo: context.repo.repo,
+        pull_number: ciPR.number,
+        body: `🤖 **Automated CI Test PR**
+
+This is an automated PR created to run CI tests for PR #${prDetails.number} by @${prDetails.user}.
+
+**Original PR:** #${prDetails.number}
+**Last triggered by:** @${context.actor}
+**Source branch:** \`${prDetails.head_ref}\`
+**Source SHA:** \`${prDetails.head_sha}\`
+
+⚠️ **This PR will be automatically closed once CI completes.** Do not merge this PR.
+
+---
+_This PR was last updated in response to the \`/run-ci\` command in #${prDetails.number}_`
+      });
+    } else {
+      // Existing PR found but it's not labeled as a CI test PR
+      // Verify it's actually a CI test PR by checking the title
+      const existingPR = existingPRs.data[0];
+      if (existingPR.title.startsWith('[CI Test]')) {
+        // Use the existing PR and add the labels
+        ciPR = existingPR;
+        isNewPR = true; // Treat as new to ensure labels are added
+      }
+      // If it's not a CI test PR, ciPR remains undefined and a new PR will be created
+    }
+  }
+  
+  if (!ciPR) {
+    // Create a new draft PR
+    const newPR = await github.rest.pulls.create({
+      owner: context.repo.owner,
+      repo: context.repo.repo,
+      title: `[CI Test] ${prDetails.title}`,
+      head: ciBranchName,
+      base: prDetails.base_ref,
+      body: `🤖 **Automated CI Test PR**
+
+This is an automated PR created to run CI tests for PR #${prDetails.number} by @${prDetails.user}.
+
+**Original PR:** #${prDetails.number}
+**Triggered by:** @${context.actor}
+**Source branch:** \`${prDetails.head_ref}\`
+**Source SHA:** \`${prDetails.head_sha}\`
+
+⚠️ **This PR will be automatically closed once CI completes.** Do not merge this PR.
+
+---
+_This PR was created in response to the \`/run-ci\` command in #${prDetails.number}_`,
+      draft: true
+    });
+    ciPR = newPR.data;
+    isNewPR = true;
+  }
+  
+  // Ensure labels are present on the CI PR (handles both new and existing PRs)
+  // Labels can be strings or objects with 'name' property depending on the API response
+  const currentLabels = ciPR.labels?.map(l => typeof l === 'string' ? l : l.name) || [];
+  const requiredLabels = ['ci-test', 'automated'];
+  const missingLabels = requiredLabels.filter(label => !currentLabels.includes(label));
+  
+  if (missingLabels.length > 0) {
+    await github.rest.issues.addLabels({
+      owner: context.repo.owner,
+      repo: context.repo.repo,
+      issue_number: ciPR.number,
+      labels: missingLabels
+    });
+  }
+  
+  // Comment on the original PR
+  const prAction = isNewPR ? 'created' : 'updated';
+  await github.rest.issues.createComment({
+    owner: context.repo.owner,
+    repo: context.repo.repo,
+    issue_number: context.issue.number,
+    body: `✅ CI test ${prAction} by @${context.actor}!
+
+CI is now running in draft PR #${ciPR.number}. You can monitor the progress there.
+
+Once the tests complete, you can review the results and the draft PR will be automatically closed.`
+  });
+  
+  core.setOutput('ci_pr_number', ciPR.number);
+  core.setOutput('ci_branch_name', ciBranchName);
+};
diff --git a/.github/scripts/get-pr-details.js b/.github/scripts/get-pr-details.js
new file mode 100644
index 000000000..88a0ce5ca
--- /dev/null
+++ b/.github/scripts/get-pr-details.js
@@ -0,0 +1,17 @@
+module.exports = async ({ github, context }) => {
+  const pr = await github.rest.pulls.get({
+    owner: context.repo.owner,
+    repo: context.repo.repo,
+    pull_number: context.issue.number
+  });
+  
+  return {
+    head_ref: pr.data.head.ref,
+    head_sha: pr.data.head.sha,
+    head_repo_full_name: pr.data.head.repo.full_name,
+    base_ref: pr.data.base.ref,
+    title: pr.data.title,
+    number: pr.data.number,
+    user: pr.data.user.login
+  };
+};
diff --git a/.github/scripts/post-unauthorized-comment.js b/.github/scripts/post-unauthorized-comment.js
new file mode 100644
index 000000000..5e0394c16
--- /dev/null
+++ b/.github/scripts/post-unauthorized-comment.js
@@ -0,0 +1,9 @@
+module.exports = async ({ github, context, core }) => {
+  await github.rest.issues.createComment({
+    owner: context.repo.owner,
+    repo: context.repo.repo,
+    issue_number: context.issue.number,
+    body: '❌ Only repository admins and maintainers can trigger CI runs. You have insufficient permissions.'
+  });
+  core.setFailed('Insufficient permissions to trigger CI');
+};
diff --git a/.github/workflows/trigger-ci.yml b/.github/workflows/trigger-ci.yml
index ab00f45c9..6afce8c78 100644
--- a/.github/workflows/trigger-ci.yml
+++ b/.github/workflows/trigger-ci.yml
@@ -24,20 +24,8 @@ jobs:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           result-encoding: string
           script: |
-            try {
-              const permission = await github.rest.repos.getCollaboratorPermissionLevel({
-                owner: context.repo.owner,
-                repo: context.repo.repo,
-                username: context.actor
-              });
-              
-              const hasPermission = ['admin', 'write'].includes(permission.data.permission);
-              console.log(`User ${context.actor} has permission: ${permission.data.permission}`);
-              return hasPermission ? 'true' : 'false';
-            } catch (error) {
-              console.error('Error checking permissions:', error);
-              return 'false';
-            }
+            const script = require('./.github/scripts/check-permissions.js');
+            return await script({ github, context });
       
       - name: Exit if unauthorized
         if: steps.check-permissions.outputs.result != 'true'
@@ -45,13 +33,8 @@ jobs:
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           script: |
-            await github.rest.issues.createComment({
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              issue_number: context.issue.number,
-              body: '❌ Only repository admins and maintainers can trigger CI runs. You have insufficient permissions.'
-            });
-            core.setFailed('Insufficient permissions to trigger CI');
+            const script = require('./.github/scripts/post-unauthorized-comment.js');
+            await script({ github, context, core });
       
       - name: Get PR details
         if: steps.check-permissions.outputs.result == 'true'
@@ -60,21 +43,8 @@ jobs:
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           script: |
-            const pr = await github.rest.pulls.get({
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              pull_number: context.issue.number
-            });
-            
-            return {
-              head_ref: pr.data.head.ref,
-              head_sha: pr.data.head.sha,
-              head_repo_full_name: pr.data.head.repo.full_name,
-              base_ref: pr.data.base.ref,
-              title: pr.data.title,
-              number: pr.data.number,
-              user: pr.data.user.login
-            };
+            const script = require('./.github/scripts/get-pr-details.js');
+            return await script({ github, context });
       
       - name: Checkout repo
         if: steps.check-permissions.outputs.result == 'true'
@@ -82,72 +52,13 @@ jobs:
         with:
           fetch-depth: 0
       
-      - name: Create CI branch and PR
+      - name: Create or update CI branch and PR
         if: steps.check-permissions.outputs.result == 'true'
         uses: actions/github-script@v7
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           script: |
+            const script = require('./.github/scripts/create-ci-pr.js');
             const prDetails = ${{ steps.pr-details.outputs.result }};
-            const timestamp = new Date().getTime();
-            const ciBranchName = `ci-test/${prDetails.number}-${timestamp}`;
-            
-            // Add remote for the external fork if it's from a fork
-            if (prDetails.head_repo_full_name !== `${context.repo.owner}/${context.repo.repo}`) {
-              await exec.exec('git', ['remote', 'add', 'external', `https://github.com/${prDetails.head_repo_full_name}.git`]);
-              await exec.exec('git', ['fetch', 'external', prDetails.head_ref]);
-              await exec.exec('git', ['checkout', '-b', ciBranchName, `external/${prDetails.head_ref}`]);
-            } else {
-              await exec.exec('git', ['fetch', 'origin', prDetails.head_ref]);
-              await exec.exec('git', ['checkout', '-b', ciBranchName, `origin/${prDetails.head_ref}`]);
-            }
-            
-            // Push the new branch to origin
-            await exec.exec('git', ['push', 'origin', ciBranchName]);
-            
-            // Create a draft PR
-            const newPR = await github.rest.pulls.create({
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              title: `[CI Test] ${prDetails.title}`,
-              head: ciBranchName,
-              base: prDetails.base_ref,
-              body: `🤖 **Automated CI Test PR**
-              
-This is an automated PR created to run CI tests for PR #${prDetails.number} by @${prDetails.user}.
-
-**Original PR:** #${prDetails.number}
-**Triggered by:** @${context.actor}
-**Source branch:** \`${prDetails.head_ref}\`
-**Source SHA:** \`${prDetails.head_sha}\`
-
-⚠️ **This PR will be automatically closed once CI completes.** Do not merge this PR.
-
----
-_This PR was created in response to the \`/run-ci\` command in #${prDetails.number}_`,
-              draft: true
-            });
-            
-            // Comment on the original PR
-            await github.rest.issues.createComment({
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              issue_number: context.issue.number,
-              body: `✅ CI test triggered by @${context.actor}!
-
-CI is now running in draft PR #${newPR.data.number}. You can monitor the progress there.
-
-Once the tests complete, you can review the results and the draft PR will be automatically closed.`
-            });
-            
-            // Add label to the new PR
-            await github.rest.issues.addLabels({
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              issue_number: newPR.data.number,
-              labels: ['ci-test', 'automated']
-            });
-            
-            core.setOutput('ci_pr_number', newPR.data.number);
-            core.setOutput('ci_branch_name', ciBranchName);
+            await script({ github, context, core, exec }, prDetails);