diff --git a/tools/spectral/ipa/__tests__/IPA005ExceptionExtensionFormat.test.js b/tools/spectral/ipa/__tests__/IPA005ExceptionExtensionFormat.test.js
index 9b2dd5c9c8..fda9121389 100644
--- a/tools/spectral/ipa/__tests__/IPA005ExceptionExtensionFormat.test.js
+++ b/tools/spectral/ipa/__tests__/IPA005ExceptionExtensionFormat.test.js
@@ -8,13 +8,19 @@ testRule('xgen-IPA-005-exception-extension-format', [
       paths: {
         '/path': {
           'x-xgen-IPA-exception': {
-            'xgen-IPA-100-rule-name': 'Exception',
+            'xgen-IPA-100-rule-name': 'Exception.',
+          },
+        },
+        '/path-short': {
+          'x-xgen-IPA-exception': {
+            'xgen-IPA-100': 'Exception.',
           },
         },
         '/nested': {
           post: {
             'x-xgen-IPA-exception': {
-              'xgen-IPA-100-rule-name': 'Exception',
+              'xgen-IPA-100-rule-name': 'Exception.',
+              'xgen-IPA-005': 'Short format exception.',
             },
           },
         },
@@ -46,31 +52,108 @@ testRule('xgen-IPA-005-exception-extension-format', [
             'xgen-IPA-100-rule-name': {},
           },
         },
+        '/path5': {
+          'x-xgen-IPA-exception': {
+            'xgen-IPA-1001-rule-name': {},
+          },
+        },
+        '/path6': {
+          'x-xgen-IPA-exception': {
+            'xgen-IPA-1001-rule_name': {},
+          },
+        },
+        '/path7': {
+          'x-xgen-IPA-exception': {
+            'xgen-IPA_100_rule-name': {},
+          },
+        },
+        '/path8': {
+          'x-xgen-IPA-exception': {
+            'xgen-IPA-100-': 'Exception.',
+          },
+        },
+        '/path9': {
+          'x-xgen-IPA-exception': {
+            'xgen-IPA-5': 'Exception.',
+          },
+        },
+        '/path10': {
+          'x-xgen-IPA-exception': {
+            'xgen-IPA-100': 'exception without uppercase.',
+          },
+        },
+        '/path11': {
+          'x-xgen-IPA-exception': {
+            'xgen-IPA-100': 'Exception without period',
+          },
+        },
       },
     },
     errors: [
       {
         code: 'xgen-IPA-005-exception-extension-format',
-        message: 'IPA exceptions must have a valid rule name and a reason.',
+        message: 'IPA exceptions must have a valid key following xgen-IPA-XXX or xgen-IPA-XXX-{rule-name} format.',
         path: ['paths', '/path1', 'x-xgen-IPA-exception'],
         severity: DiagnosticSeverity.Error,
       },
       {
         code: 'xgen-IPA-005-exception-extension-format',
-        message: 'IPA exceptions must have a valid rule name and a reason.',
-        path: ['paths', '/path2', 'x-xgen-IPA-exception', 'xgen-IPA-100-rule-name'],
+        message: 'IPA exceptions must have a non-empty reason that starts with uppercase and ends with a full stop.',
+        path: ['paths', '/path2', 'x-xgen-IPA-exception'],
+        severity: DiagnosticSeverity.Error,
+      },
+      {
+        code: 'xgen-IPA-005-exception-extension-format',
+        message: 'IPA exceptions must have a valid key following xgen-IPA-XXX or xgen-IPA-XXX-{rule-name} format.',
+        path: ['paths', '/path3', 'x-xgen-IPA-exception'],
+        severity: DiagnosticSeverity.Error,
+      },
+      {
+        code: 'xgen-IPA-005-exception-extension-format',
+        message: 'IPA exceptions must have a non-empty reason that starts with uppercase and ends with a full stop.',
+        path: ['paths', '/path4', 'x-xgen-IPA-exception'],
+        severity: DiagnosticSeverity.Error,
+      },
+      {
+        code: 'xgen-IPA-005-exception-extension-format',
+        message: 'IPA exceptions must have a valid key following xgen-IPA-XXX or xgen-IPA-XXX-{rule-name} format.',
+        path: ['paths', '/path5', 'x-xgen-IPA-exception'],
+        severity: DiagnosticSeverity.Error,
+      },
+      {
+        code: 'xgen-IPA-005-exception-extension-format',
+        message: 'IPA exceptions must have a valid key following xgen-IPA-XXX or xgen-IPA-XXX-{rule-name} format.',
+        path: ['paths', '/path6', 'x-xgen-IPA-exception'],
+        severity: DiagnosticSeverity.Error,
+      },
+      {
+        code: 'xgen-IPA-005-exception-extension-format',
+        message: 'IPA exceptions must have a valid key following xgen-IPA-XXX or xgen-IPA-XXX-{rule-name} format.',
+        path: ['paths', '/path7', 'x-xgen-IPA-exception'],
+        severity: DiagnosticSeverity.Error,
+      },
+      {
+        code: 'xgen-IPA-005-exception-extension-format',
+        message: 'IPA exceptions must have a valid key following xgen-IPA-XXX or xgen-IPA-XXX-{rule-name} format.',
+        path: ['paths', '/path8', 'x-xgen-IPA-exception'],
+        severity: DiagnosticSeverity.Error,
+      },
+      {
+        code: 'xgen-IPA-005-exception-extension-format',
+        message: 'IPA exceptions must have a valid key following xgen-IPA-XXX or xgen-IPA-XXX-{rule-name} format.',
+        path: ['paths', '/path9', 'x-xgen-IPA-exception'],
         severity: DiagnosticSeverity.Error,
       },
       {
         code: 'xgen-IPA-005-exception-extension-format',
-        message: 'IPA exceptions must have a valid rule name and a reason.',
-        path: ['paths', '/path3', 'x-xgen-IPA-exception', 'invalid-rule-name'],
+        message: 'IPA exceptions must have a non-empty reason that starts with uppercase and ends with a full stop.',
+        path: ['paths', '/path10', 'x-xgen-IPA-exception'],
         severity: DiagnosticSeverity.Error,
       },
       {
         code: 'xgen-IPA-005-exception-extension-format',
-        message: 'IPA exceptions must have a valid rule name and a reason.',
-        path: ['paths', '/path4', 'x-xgen-IPA-exception', 'xgen-IPA-100-rule-name'],
+        message: 'IPA exceptions must have a non-empty reason that starts with uppercase and ends with a full stop.',
+        path: ['paths', '/path11', 'x-xgen-IPA-exception'],
         severity: DiagnosticSeverity.Error,
       },
     ],
diff --git a/tools/spectral/ipa/ipa-spectral.yaml b/tools/spectral/ipa/ipa-spectral.yaml
index a46dedf224..2bad9e8f9e 100644
--- a/tools/spectral/ipa/ipa-spectral.yaml
+++ b/tools/spectral/ipa/ipa-spectral.yaml
@@ -214,3 +214,7 @@ overrides:
       - '**#/paths/~1api~1atlas~1v2~1groups~1%7BgroupId%7D~1customDBRoles~1roles~1%7BroleName%7D'
     rules:
       xgen-IPA-102-collection-identifier-camelCase: 'off'
+  - files:
+      - '**' # Matches all files
+    rules:
+      xgen-IPA-005-exception-extension-format: 'off'
diff --git a/tools/spectral/ipa/rulesets/IPA-005.yaml b/tools/spectral/ipa/rulesets/IPA-005.yaml
index 98eda6bf77..dbe38f99e4 100644
--- a/tools/spectral/ipa/rulesets/IPA-005.yaml
+++ b/tools/spectral/ipa/rulesets/IPA-005.yaml
@@ -12,7 +12,8 @@ rules:
       ##### Implementation details
       Rule checks for the following conditions:
         - Exception rule names must start with 'xgen-IPA-' prefix
-        - Each exception must include a non-empty reason as a string
+        - Exception rule names can be either short format (xgen-IPA-XXX) or full format (xgen-IPA-XXX-rule-name)
+        - Each exception must include a non-empty reason as a string that starts with uppercase and ends with a full stop
         - This rule itself does not allow exceptions
     message: '{{error}} https://mdb.link/mongodb-atlas-openapi-validation#xgen-IPA-005-exception-extension-format'
     severity: error
diff --git a/tools/spectral/ipa/rulesets/README.md b/tools/spectral/ipa/rulesets/README.md
index fc75253fb3..eea19fa3dc 100644
--- a/tools/spectral/ipa/rulesets/README.md
+++ b/tools/spectral/ipa/rulesets/README.md
@@ -20,7 +20,8 @@ IPA exception extensions must follow the correct format.
 ##### Implementation details
 Rule checks for the following conditions:
   - Exception rule names must start with 'xgen-IPA-' prefix
-  - Each exception must include a non-empty reason as a string
+  - Exception rule names can be either short format (xgen-IPA-XXX) or full format (xgen-IPA-XXX-rule-name)
+  - Each exception must include a non-empty reason as a string that starts with uppercase and ends with a full stop
   - This rule itself does not allow exceptions
 
 
diff --git a/tools/spectral/ipa/rulesets/functions/IPA005ExceptionExtensionFormat.js b/tools/spectral/ipa/rulesets/functions/IPA005ExceptionExtensionFormat.js
index ac7c64377f..0d320ca630 100644
--- a/tools/spectral/ipa/rulesets/functions/IPA005ExceptionExtensionFormat.js
+++ b/tools/spectral/ipa/rulesets/functions/IPA005ExceptionExtensionFormat.js
@@ -1,7 +1,10 @@
 import { evaluateAndCollectAdoptionStatusWithoutExceptions, handleInternalError } from './utils/collectionUtils.js';
 
-const ERROR_MESSAGE = 'IPA exceptions must have a valid rule name and a reason.';
-const RULE_NAME_PREFIX = 'xgen-IPA-';
+const ERROR_MESSAGE_RULENAME_FORMAT =
+  'IPA exceptions must have a valid key following xgen-IPA-XXX or xgen-IPA-XXX-{rule-name} format.';
+const ERROR_MESSAGE_REASON_FORMAT =
+  'IPA exceptions must have a non-empty reason that starts with uppercase and ends with a full stop.';
+const RULE_NAME_PATTERN = /^xgen-IPA-\d{3}(?:-[a-z-]+)?$/;
 
 // Note: This rule does not allow exceptions
 export default (input, _, { path, rule }) => {
@@ -10,21 +13,44 @@ export default (input, _, { path, rule }) => {
   return evaluateAndCollectAdoptionStatusWithoutExceptions(errors, ruleName, path);
 };
 
-function isValidException(ruleName, reason) {
-  return ruleName.startsWith(RULE_NAME_PREFIX) && typeof reason === 'string' && reason !== '';
+function isRuleNameValid(ruleName) {
+  return RULE_NAME_PATTERN.test(ruleName);
+}
+
+function isReasonFormatValid(reason) {
+  if (reason === null || reason === undefined || typeof reason !== 'string' || reason === '') {
+    return false;
+  }
+  // Check if reason starts with uppercase letter
+  if (!/^[A-Z]/.test(reason)) {
+    return false;
+  }
+
+  // Check if reason ends with a full stop
+  if (!reason.endsWith('.')) {
+    return false;
+  }
+  return true;
 }
 
 function checkViolationsAndReturnErrors(input, path, ruleName) {
   const errors = [];
   try {
     const exemptedRules = Object.keys(input);
-    exemptedRules.forEach((ruleName) => {
-      const reason = input[ruleName];
-      if (!isValidException(ruleName, reason)) {
+    exemptedRules.forEach((key) => {
+      const reason = input[key];
+      if (!isRuleNameValid(key)) {
         errors.push({
           path: path.concat([ruleName]),
-          message: ERROR_MESSAGE,
+          message: ERROR_MESSAGE_RULENAME_FORMAT,
         });
+      } else {
+        if (!isReasonFormatValid(reason)) {
+          errors.push({
+            path: path.concat([ruleName]),
+            message: ERROR_MESSAGE_REASON_FORMAT,
+          });
+        }
       }
     });
     return errors;