diff --git a/.github/workflows/dev_cron.yml b/.github/workflows/dev_cron.yml
index 0e9998541..ab2840ebd 100644
--- a/.github/workflows/dev_cron.yml
+++ b/.github/workflows/dev_cron.yml
@@ -15,49 +15,44 @@
 # specific language governing permissions and limitations
 # under the License.
 
-name: Dev Cron
+name: Dev PR
 
 on:
-  push:
-    paths:
-      - '.github/workflows/dev_cron.yml'
-  pull_request:
-    paths:
-      - '.github/workflows/dev_cron.yml'
-  schedule:
-    - cron: |
-        */15 * * * *
 
-jobs:
+  pull_request_target:
+    types:
+      - opened
+      - edited
+      - synchronize
 
-  issues-link:
-    if: github.repository == 'Intel-bigdata/OAP'
-    name: issues link
+jobs:
+  process:
+    name: Process
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@master
-      - name: Comment
-        uses: actions/github-script@master
+      - uses: actions/checkout@v2
+
+      - name: Comment Issues link
+        if: |
+          github.event_name == 'pull_request_target' &&
+            (github.event.action == 'opened' ||
+             github.event.action == 'edited')
+        uses: actions/github-script@v3
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           script: |
-            const fs = require("fs");
-            const path = ".github/workflows/dev_cron/issues_link.js";
-            const script = fs.readFileSync(path).toString();
-            eval(script);
+            const script = require(`${process.env.GITHUB_WORKSPACE}/.github/workflows/dev_cron/issues_link.js`);
+            script({github, context});
 
-  title-check:
-    if: github.repository == 'Intel-bigdata/OAP'
-    name: Title check
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@master
-      - name: Check
-        uses: actions/github-script@master
+      - name: Check title
+        if: |
+          github.event_name == 'pull_request_target' &&
+            (github.event.action == 'opened' ||
+             github.event.action == 'edited')
+        uses: actions/github-script@v3
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           script: |
-            const fs = require("fs");
-            const path = ".github/workflows/dev_cron/title_check.js";
-            const script = fs.readFileSync(path).toString();
-            eval(script);
+            const script = require(`${process.env.GITHUB_WORKSPACE}/.github/workflows/dev_cron/title_check.js`);
+            script({github, context});
+
diff --git a/.github/workflows/dev_cron/issues_link.js b/.github/workflows/dev_cron/issues_link.js
index 3d23b9644..f3b4dd6d3 100644
--- a/.github/workflows/dev_cron/issues_link.js
+++ b/.github/workflows/dev_cron/issues_link.js
@@ -15,13 +15,11 @@
 // specific language governing permissions and limitations
 // under the License.
 
-const {owner: owner, repo: repo} = context.repo;
-
 function detectISSUESID(title) {
   if (!title) {
     return null;
   }
-  const matched = /^\[OAP-\d+\]/.exec(title);
+  const matched = /^\[ML-\d+\]/.exec(title);
   if (!matched) {
     return null;
   }
@@ -29,10 +27,10 @@ function detectISSUESID(title) {
   return issues_number;
 }
 
-async function haveComment(pullRequestNumber, body) {
+async function haveComment(github, context, pullRequestNumber, body) {
   const options = {
-    owner: owner,
-    repo: repo,
+    owner: context.repo.owner,
+    repo: context.repo.repo,
     issue_number: pullRequestNumber,
     page: 1
   };
@@ -49,30 +47,24 @@ async function haveComment(pullRequestNumber, body) {
   return false;
 }
 
-async function commentISSUESURL(pullRequestNumber, issuesID) {
-  const issuesURL = `https://github.com/Intel-bigdata/OAP/issues/${issuesID}`;
-  if (await haveComment(pullRequestNumber, issuesURL)) {
+async function commentISSUESURL(github, context, pullRequestNumber, issuesID) {
+  const issuesURL = `https://github.com/oap-project/oap-mllib/issues/${issuesID}`;
+  if (await haveComment(github, context, pullRequestNumber, issuesURL)) {
     return;
   }
   await github.issues.createComment({
-    owner: owner,
-    repo: repo,
+    owner: context.repo.owner,
+    repo: context.repo.repo,
     issue_number: pullRequestNumber,
     body: issuesURL
   });
 }
 
-(async () => {
-  const {data: pulls} = await github.pulls.list({
-    owner: owner,
-    repo: repo,
-  });
-  pulls.forEach(async (pull) => {
-    const pullRequestNumber = pull.number;
-    const title = pull.title;
-    const issuesID = detectISSUESID(title);
-    if (issuesID) {
-      await commentISSUESURL(pullRequestNumber, issuesID);
-    }
-  });
-})();
+module.exports = async ({github, context}) => {
+  const pullRequestNumber = context.payload.number;
+  const title = context.payload.pull_request.title;
+  const issuesID = detectISSUESID(title);
+  if (issuesID) {
+    await commentISSUESURL(github, context, pullRequestNumber, issuesID);
+  }
+};
diff --git a/.github/workflows/dev_cron/title_check.js b/.github/workflows/dev_cron/title_check.js
index 90c90afcd..030cf01a8 100644
--- a/.github/workflows/dev_cron/title_check.js
+++ b/.github/workflows/dev_cron/title_check.js
@@ -15,23 +15,19 @@
 // specific language governing permissions and limitations
 // under the License.
 
-console.log("title-check");
-
 const fs = require("fs");
 
-const {owner: owner, repo: repo} = context.repo;
-
 function haveISSUESID(title) {
   if (!title) {
     return false;
   }
-  return /^\[OAP-\d+\]/.test(title);
+  return /^\[ML-\d+\]/.test(title);
 }
 
-async function commentOpenISSUESIssue(pullRequestNumber) {
+async function commentOpenISSUESIssue(github, context, pullRequestNumber) {
   const {data: comments} = await github.issues.listComments({
-    owner: owner,
-    repo: repo,
+    owner: context.repo.owner,
+    repo: context.repo.repo,
     issue_number: pullRequestNumber,
     per_page: 1
   });
@@ -41,23 +37,17 @@ async function commentOpenISSUESIssue(pullRequestNumber) {
   const commentPath = ".github/workflows/dev_cron/title_check.md";
   const comment = fs.readFileSync(commentPath).toString();
   await github.issues.createComment({
-    owner: owner,
-    repo: repo,
+    owner: context.repo.owner,
+    repo: context.repo.repo,
     issue_number: pullRequestNumber,
     body: comment
   });
 }
 
-(async () => {
-  const {data: pulls} = await github.pulls.list({
-    owner: owner,
-    repo: repo,
-  });
-  pulls.forEach(async (pull) => {
-    const pullRequestNumber = pull.number;
-    const title = pull.title;
-    if (!haveISSUESID(title)) {
-      await commentOpenISSUESIssue(pullRequestNumber);
-    }
-  });
-})();
+module.exports = async ({github, context}) => {
+  const pullRequestNumber = context.payload.number;
+  const title = context.payload.pull_request.title;
+  if (!haveISSUESID(title)) {
+    await commentOpenISSUESIssue(github, context, pullRequestNumber);
+  }
+};
diff --git a/.github/workflows/dev_cron/title_check.md b/.github/workflows/dev_cron/title_check.md
index b04efea9b..38a6460dd 100644
--- a/.github/workflows/dev_cron/title_check.md
+++ b/.github/workflows/dev_cron/title_check.md
@@ -20,13 +20,13 @@
 Thanks for opening a pull request!
 
 Could you open an issue for this pull request on Github Issues?
-https://github.com/Intel-bigdata/OAP/issues
+https://github.com/oap-project/oap-mllib/issues
 
 Then could you also rename ***pull request title*** and ***commit log*** in the following format?
 
-    [OAP-${ISSUES_ID}][optional:${MUDULENAME}] ${detailed message}
+    [ML-${ISSUES_ID}] ${detailed message}
 
 See also:
 
-  * [Other pull requests](https://github.com/Intel-bigdata/OAP/pulls/)
+  * [Other pull requests](https://github.com/oap-project/oap-mllib/pulls/)