Role Usage Analyzer (#2304)

* Create README.md

* Create code.js

Author: shivamvish160

Server-Side Components/Scheduled Jobs/Role Usage Analyzer/README.md

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+# Role Usage Analyzer for ServiceNow
+
+## Overview
+
+This script analyzes role assignments in your ServiceNow instance and identifies roles that are assigned to users but appear to be unused. It cross-references user activity logs to determine whether assigned roles are actively used.
+
+## Features
+
+- Scans all roles assigned to users
+- Checks user activity via `sys_history_line` to infer role usage
+- Flags roles that are assigned but show no signs of usage
+- Logs unused roles and the number of users assigned to them
+
+## Usage
+
+1. Navigate to **System Definition > Scheduled Jobs**.
+2. Create a new Script Include or Scheduled Job named `Role_Usage_Analyzer`.
+3. Paste the contents of `Role_Usage_Analyzer.js` into the script field.
+4. Run the script manually or schedule it to run periodically (e.g., weekly or monthly).
+
+## Notes
+
+- This script uses `sys_history_line` to infer user activity. For more accurate results, consider integrating with login logs or audit tables if available.
+- You can extend the script to automatically notify administrators or generate reports.
+- Roles used only in background scripts or integrations may not show up in history logs — manual review is recommended.
+

Server-Side Components/Scheduled Jobs/Role Usage Analyzer/code.js

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+
+    // Role Usage Analyzer Script
+    // Description: Identifies roles assigned to users that may be unused.
+
+    var roleUsageMap = {};
+    var grUserRole = new GlideRecord('sys_user_has_role');
+    grUserRole.query();
+
+    while (grUserRole.next()) {
+        var userId = grUserRole.user.toString();
+        var roleId = grUserRole.role.toString();
+
+        if (!roleUsageMap[roleId]) {
+            roleUsageMap[roleId] = {
+                users: [],
+                used: false
+            };
+        }
+
+        roleUsageMap[roleId].users.push(userId);
+    }
+
+    var grHistory = new GlideRecord('sys_history_line');
+    grHistory.addQuery('user', 'ISNOTEMPTY');
+    grHistory.query();
+
+    while (grHistory.next()) {
+        var userId = grHistory.user.toString();
+        for (var roleId in roleUsageMap) {
+            if (roleUsageMap[roleId].users.indexOf(userId) !== -1) {
+                roleUsageMap[roleId].used = true;
+            }
+        }
+    }
+
+    for (var roleId in roleUsageMap) {
+        if (!roleUsageMap[roleId].used) {
+            var grRole = new GlideRecord('sys_user_role');
+            if (grRole.get(roleId)) {
+                gs.info('[Role Usage Analyzer] Unused Role: ' + grRole.name + ' | Assigned to Users: ' + roleUsageMap[roleId].users.length);
+            }
+        }
+    }