feat: add genai-assisted label

.claude/settings.json

@@ -0,0 +1,14 @@
+{
+  "hooks": {
+    "Stop": [
+      {
+        "hooks": [
+          {
+            "type": "command",
+            "command": "touch .claude-assisted"
+          }
+        ]
+      }
+    ]
+  }
+}

.cursor/hooks.json

@@ -0,0 +1,10 @@
+{
+  "version": 1,
+  "hooks": {
+    "stop": [
+      {
+        "command": "touch .cursor-assisted"
+      }
+    ]
+  }
+}

.githooks/prepare-commit-msg

@@ -0,0 +1,27 @@
+#!/bin/sh
+COMMIT_MSG_FILE=$1
+COMMIT_SOURCE=$2
+
+# Skip for merge/squash commits
+case "$COMMIT_SOURCE" in
+  merge|squash) exit 0 ;;
+esac
+
+# Check if Co-Authored-By is already present
+if grep -qi "co-authored-by:.*\(claude\|cursor\|genai\)" "$COMMIT_MSG_FILE"; then
+  rm -f .cursor-assisted .claude-assisted
+  exit 0
+fi
+
+# Add Co-Authored-By based on which agent was used
+if [ -f ".cursor-assisted" ]; then
+  echo "" >> "$COMMIT_MSG_FILE"
+  echo "Co-Authored-By: Cursor" >> "$COMMIT_MSG_FILE"
+  rm -f .cursor-assisted
+fi
+
+if [ -f ".claude-assisted" ]; then
+  echo "" >> "$COMMIT_MSG_FILE"
+  echo "Co-Authored-By: Claude" >> "$COMMIT_MSG_FILE"
+  rm -f .claude-assisted
+fi

.gitignore

@@ -10,7 +10,7 @@ coverage
 .LSOverride
 
 # Icon must end with two \r
-Icon
+Icon
 
 # Thumbnails
 ._*
@@ -54,3 +54,7 @@ tags
 
 
 # End of https://www.toptal.com/developers/gitignore/api/macos,vim
+
+# GenAI marker files (created by agent hooks)
+.cursor-assisted
+.claude-assisted

README.md

@@ -2,30 +2,47 @@
 
 [![NPM](https://github.com/mobsuccess-devops/github-actions-mobsuccess/actions/workflows/npm.yml/badge.svg)](https://github.com/mobsuccess-devops/github-actions-mobsuccess/actions/workflows/npm.yml)
 
-This action validates that the various Mobsuccess policies are enforced when
-changes are made to the repository. It checks, for example, the title of the
-pull request, the names of the branch…
+GitHub Action enforcing Mobsuccess policies on repositories.
 
-# Install the workflow in repository
+## Installation
 
-You do not need to make any action to install the GitHub Action workflow,
-ms-bot will automatically make PRs on your repository when changes are needed.
+No manual setup required - ms-bot automatically creates PRs when changes are needed.
 
-# ACTIONS
+## Features
 
-## Changelog
+| Action        | Description                                                                                                                                                      |
+| ------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| `validate-pr` | Validates PR title and branch name conventions, adds branch tag label, detects GenAI-assisted PRs (adds `genai-assisted` label), posts AWS Amplify preview links |
+| `changelog`   | Generates changelog for the last X releases                                                                                                                      |
 
-The changelog action allows to generate on a particular repo, a changelog for the last X tags.
+## Usage
 
-The "latest tag" corresponds to a tag that has not been pushed as a release. As this action is based on GH releases, it allows to generate the changelog between the last release and the tag being created right now.
+### validate-pr
 
-Usage:
+```yml
+- uses: mobsuccess-devops/github-actions-mobsuccess@master
+  with:
+    github-token: ${{ github.token }}
+    action: validate-pr
+```
+
+### changelog
 
 ```yml
 - uses: mobsuccess-devops/github-actions-mobsuccess@master
   with:
     github-token: ${{ github.token }}
     action: changelog
-    max-releases: 10 #(optional, default to 10)
-    unreleased-tag: 0.0.90289303809 # newly created unreleased tag (optional)
+    max-releases: 10 # optional, default 10
+    unreleased-tag: 0.0.1 # optional, newly created tag
 ```
+
+## GenAI Detection
+
+Automatically detects AI-assisted PRs and adds the `genai-assisted` label.
+
+**Detection triggers:** PR author (bot accounts), branch prefix (`cursor/`, `claude/`, `ai/`...), PR body mentions, existing AI labels, commit messages (`Co-Authored-By: Claude`, etc.)
+
+**Supported tools:** Claude, Copilot, ChatGPT, Cursor, Gemini, Windsurf, Codeium, Tabnine, Aider, Devin, Amazon Q, and more.
+
+**Customization:** Edit `lib/genaiPatterns.js` to add patterns.

lib/actions/pullRequest.js

@@ -4,6 +4,12 @@ const {
   isPullRequestTitleValid: isPullRequestTitleValid,
 } = require("../pullRequest");
 const { getAmplifyURIs } = require("./amplify");
+const {
+  detectGenAI,
+  GENAI_LABEL,
+  GENAI_LABEL_COLOR,
+  GENAI_LABEL_DESCRIPTION,
+} = require("../genaiDetection");
 
 exports.validatePR = async function validatePR({ pullRequest, issue }) {
   const octokit = getOctokit();
@@ -59,6 +65,74 @@ exports.validatePR = async function validatePR({ pullRequest, issue }) {
       // ignore error
       console.log(`Could not apply label: ${e}`);
     }
+
+    try {
+      const genaiResult = await detectGenAI(octokit, {
+        owner,
+        repo,
+        pullNumber,
+        pullRequest,
+      });
+
+      if (genaiResult.detected) {
+        console.log(`GenAI detected: ${genaiResult.reason}`);
+        // Ensure label exists with correct color/description
+        let labelExists = false;
+        try {
+          const { data: existingLabel } = await octokit.issues.getLabel({
+            owner,
+            repo,
+            name: GENAI_LABEL,
+          });
+          // Update if color or description differs
+          if (
+            existingLabel.color !== GENAI_LABEL_COLOR ||
+            existingLabel.description !== GENAI_LABEL_DESCRIPTION
+          ) {
+            await octokit.issues.updateLabel({
+              owner,
+              repo,
+              name: GENAI_LABEL,
+              color: GENAI_LABEL_COLOR,
+              description: GENAI_LABEL_DESCRIPTION,
+            });
+            console.log(`Updated label "${GENAI_LABEL}"`);
+          }
+          labelExists = true;
+        } catch (err) {
+          if (err.status === 404) {
+            labelExists = false;
+          } else {
+            throw err;
+          }
+        }
+        if (!labelExists) {
+          await octokit.issues.createLabel({
+            owner,
+            repo,
+            name: GENAI_LABEL,
+            color: GENAI_LABEL_COLOR,
+            description: GENAI_LABEL_DESCRIPTION,
+          });
+          console.log(
+            `Created label "${GENAI_LABEL}" with color #${GENAI_LABEL_COLOR}`
+          );
+        }
+        await octokit.issues.addLabels({
+          owner,
+          repo,
+          issue_number: pullNumber,
+          labels: [GENAI_LABEL],
+        });
+        console.log(`Added "${GENAI_LABEL}" label to PR #${pullNumber}`);
+      } else if (genaiResult.alreadyLabeled) {
+        console.log(`PR #${pullNumber} already has "${GENAI_LABEL}" label`);
+      } else {
+        console.log(`No GenAI assistance detected in PR #${pullNumber}`);
+      }
+    } catch (e) {
+      console.log(`Warning: GenAI detection failed: ${e.message}`);
+    }
   }
 
   // do we have an AWS Amplify URI? If so, make sure that at least one comment
@@ -139,7 +213,6 @@ exports.validatePR = async function validatePR({ pullRequest, issue }) {
       );
     }
 
-    // delete the bogus comments by the aws-amplify robot
     const bogusComments = comments.filter(({ user: { login } }) =>
       login.match(/^aws-amplify-/)
     );

lib/actions/pullRequestMerged.js

@@ -10,7 +10,6 @@ const sendRebaseOntoCommentOnSubbranches = async ({
     owner: { login: owner },
     name: repo,
   } = repoObject;
-  // fetch the pull request from github
   const { data: pr } = await octokit.rest.pulls.get({
     owner,
     repo,
@@ -22,7 +21,6 @@ const sendRebaseOntoCommentOnSubbranches = async ({
     );
     return;
   }
-  // find all opened pull requests having the merged PR as base
   const { data: subprs } = await octokit.rest.pulls.list({
     owner,
     repo,
@@ -49,7 +47,6 @@ git fetch && git rebase --onto origin/master ${lastCommitOfParentPR} && git push
 \`\`\` 
 `;
 
-  // post a comment in each subprs
   for (const pr of subprs) {
     console.log(
       `*** PR #${pr.number} is a subpr of #${mergedPrNumber} which has been merged into master`
@@ -63,7 +60,6 @@ git fetch && git rebase --onto origin/master ${lastCommitOfParentPR} && git push
       return comment.body.startsWith(commentToDetectComment);
     });
     if (comment) {
-      // if body is different, update body
       if (comment.body !== body) {
         await octokit.rest.issues.updateComment({
           owner,