diff --git a/descriptions-next/api.github.com/api.github.com.2022-11-28.json b/descriptions-next/api.github.com/api.github.com.2022-11-28.json
index d615d9af8e..a0ab3d8d87 100644
--- a/descriptions-next/api.github.com/api.github.com.2022-11-28.json
+++ b/descriptions-next/api.github.com/api.github.com.2022-11-28.json
@@ -119830,6 +119830,13 @@
             "examples": [
               true
             ]
+          },
+          "updated_at": {
+            "type": [
+              "string",
+              "null"
+            ],
+            "format": "date-time"
           }
         },
         "required": [
diff --git a/descriptions-next/api.github.com/api.github.com.2022-11-28.yaml b/descriptions-next/api.github.com/api.github.com.2022-11-28.yaml
index d1d7bff761..a4d65d61b7 100644
--- a/descriptions-next/api.github.com/api.github.com.2022-11-28.yaml
+++ b/descriptions-next/api.github.com/api.github.com.2022-11-28.yaml
@@ -87077,6 +87077,11 @@ components:
           type: boolean
           examples:
           - true
+        updated_at:
+          type:
+          - string
+          - 'null'
+          format: date-time
       required:
       - id
       - key_prefix
diff --git a/descriptions-next/api.github.com/api.github.com.json b/descriptions-next/api.github.com/api.github.com.json
index d615d9af8e..a0ab3d8d87 100644
--- a/descriptions-next/api.github.com/api.github.com.json
+++ b/descriptions-next/api.github.com/api.github.com.json
@@ -119830,6 +119830,13 @@
             "examples": [
               true
             ]
+          },
+          "updated_at": {
+            "type": [
+              "string",
+              "null"
+            ],
+            "format": "date-time"
           }
         },
         "required": [
diff --git a/descriptions-next/api.github.com/api.github.com.yaml b/descriptions-next/api.github.com/api.github.com.yaml
index d1d7bff761..a4d65d61b7 100644
--- a/descriptions-next/api.github.com/api.github.com.yaml
+++ b/descriptions-next/api.github.com/api.github.com.yaml
@@ -87077,6 +87077,11 @@ components:
           type: boolean
           examples:
           - true
+        updated_at:
+          type:
+          - string
+          - 'null'
+          format: date-time
       required:
       - id
       - key_prefix
diff --git a/descriptions-next/api.github.com/dereferenced/api.github.com.2022-11-28.deref.json b/descriptions-next/api.github.com/dereferenced/api.github.com.2022-11-28.deref.json
index ed3d3a8901..11bfff7303 100644
--- a/descriptions-next/api.github.com/dereferenced/api.github.com.2022-11-28.deref.json
+++ b/descriptions-next/api.github.com/dereferenced/api.github.com.2022-11-28.deref.json
@@ -226287,6 +226287,13 @@
                         "examples": [
                           true
                         ]
+                      },
+                      "updated_at": {
+                        "type": [
+                          "string",
+                          "null"
+                        ],
+                        "format": "date-time"
                       }
                     },
                     "required": [
@@ -226425,6 +226432,13 @@
                       "examples": [
                         true
                       ]
+                    },
+                    "updated_at": {
+                      "type": [
+                        "string",
+                        "null"
+                      ],
+                      "format": "date-time"
                     }
                   },
                   "required": [
@@ -226616,6 +226630,13 @@
                       "examples": [
                         true
                       ]
+                    },
+                    "updated_at": {
+                      "type": [
+                        "string",
+                        "null"
+                      ],
+                      "format": "date-time"
                     }
                   },
                   "required": [
diff --git a/descriptions-next/api.github.com/dereferenced/api.github.com.2022-11-28.deref.yaml b/descriptions-next/api.github.com/dereferenced/api.github.com.2022-11-28.deref.yaml
index 0c983548b9..6e77f4074f 100644
--- a/descriptions-next/api.github.com/dereferenced/api.github.com.2022-11-28.deref.yaml
+++ b/descriptions-next/api.github.com/dereferenced/api.github.com.2022-11-28.deref.yaml
@@ -52269,6 +52269,11 @@ paths:
                       type: boolean
                       examples:
                       - true
+                    updated_at:
+                      type:
+                      - string
+                      - 'null'
+                      format: date-time
                   required:
                   - id
                   - key_prefix
diff --git a/descriptions-next/api.github.com/dereferenced/api.github.com.deref.json b/descriptions-next/api.github.com/dereferenced/api.github.com.deref.json
index ed3d3a8901..11bfff7303 100644
--- a/descriptions-next/api.github.com/dereferenced/api.github.com.deref.json
+++ b/descriptions-next/api.github.com/dereferenced/api.github.com.deref.json
@@ -226287,6 +226287,13 @@
                         "examples": [
                           true
                         ]
+                      },
+                      "updated_at": {
+                        "type": [
+                          "string",
+                          "null"
+                        ],
+                        "format": "date-time"
                       }
                     },
                     "required": [
@@ -226425,6 +226432,13 @@
                       "examples": [
                         true
                       ]
+                    },
+                    "updated_at": {
+                      "type": [
+                        "string",
+                        "null"
+                      ],
+                      "format": "date-time"
                     }
                   },
                   "required": [
@@ -226616,6 +226630,13 @@
                       "examples": [
                         true
                       ]
+                    },
+                    "updated_at": {
+                      "type": [
+                        "string",
+                        "null"
+                      ],
+                      "format": "date-time"
                     }
                   },
                   "required": [
diff --git a/descriptions-next/api.github.com/dereferenced/api.github.com.deref.yaml b/descriptions-next/api.github.com/dereferenced/api.github.com.deref.yaml
index 0c983548b9..6e77f4074f 100644
--- a/descriptions-next/api.github.com/dereferenced/api.github.com.deref.yaml
+++ b/descriptions-next/api.github.com/dereferenced/api.github.com.deref.yaml
@@ -52269,6 +52269,11 @@ paths:
                       type: boolean
                       examples:
                       - true
+                    updated_at:
+                      type:
+                      - string
+                      - 'null'
+                      format: date-time
                   required:
                   - id
                   - key_prefix
diff --git a/descriptions-next/ghec/dereferenced/ghec.2022-11-28.deref.json b/descriptions-next/ghec/dereferenced/ghec.2022-11-28.deref.json
index 9c1447ad41..b9051a6d24 100644
--- a/descriptions-next/ghec/dereferenced/ghec.2022-11-28.deref.json
+++ b/descriptions-next/ghec/dereferenced/ghec.2022-11-28.deref.json
@@ -58742,6 +58742,13 @@
                             "type": "string",
                             "description": "Name of the cost center."
                           },
+                          "description": {
+                            "type": "string",
+                            "description": "Description of the cost center.",
+                            "x-github": {
+                              "featureFlag": "billing_add_cost_center_description"
+                            }
+                          },
                           "state": {
                             "type": "string",
                             "description": "State of the cost center.",
@@ -59009,6 +59016,13 @@
                   "name": {
                     "type": "string",
                     "description": "The name of the cost center (max length 255 characters)"
+                  },
+                  "description": {
+                    "type": "string",
+                    "description": "The description of the cost center.",
+                    "x-github": {
+                      "featureFlag": "billing_add_cost_center_description"
+                    }
                   }
                 }
               },
@@ -59016,7 +59030,8 @@
                 "example-1": {
                   "summary": "Example request to create a cost center",
                   "value": {
-                    "name": "Engineering Team"
+                    "name": "Engineering Team",
+                    "description": "Software development, DevOps, and platform engineering expenses"
                   }
                 }
               }
@@ -59039,6 +59054,13 @@
                       "type": "string",
                       "description": "Name of the cost center"
                     },
+                    "description": {
+                      "type": "string",
+                      "description": "The description of the cost center.",
+                      "x-github": {
+                        "featureFlag": "billing_add_cost_center_description"
+                      }
+                    },
                     "azure_subscription": {
                       "type": [
                         "string",
@@ -59079,6 +59101,7 @@
                     "value": {
                       "id": "abc123",
                       "name": "Engineering Team",
+                      "description": "Software development, DevOps, and platform engineering expenses",
                       "resources": []
                     }
                   }
@@ -59194,6 +59217,13 @@
                       "type": "string",
                       "description": "Name of the cost center."
                     },
+                    "description": {
+                      "type": "string",
+                      "description": "Description of the cost center.",
+                      "x-github": {
+                        "featureFlag": "billing_add_cost_center_description"
+                      }
+                    },
                     "azure_subscription": {
                       "type": [
                         "string",
@@ -59452,6 +59482,13 @@
                   "name": {
                     "type": "string",
                     "description": "The new name for the cost center"
+                  },
+                  "description": {
+                    "type": "string",
+                    "description": "The new description for the cost center",
+                    "x-github": {
+                      "featureFlag": "billing_add_cost_center_description"
+                    }
                   }
                 }
               },
@@ -59459,7 +59496,8 @@
                 "update-cost-center": {
                   "summary": "Update cost center name example",
                   "value": {
-                    "name": "New Cost Center Name"
+                    "name": "New Cost Center Name",
+                    "description": "Updated description for the cost center"
                   }
                 }
               }
@@ -59482,6 +59520,13 @@
                       "type": "string",
                       "description": "Name of the cost center."
                     },
+                    "description": {
+                      "type": "string",
+                      "description": "Description of the cost center.",
+                      "x-github": {
+                        "featureFlag": "billing_add_cost_center_description"
+                      }
+                    },
                     "azure_subscription": {
                       "type": [
                         "string",
@@ -270829,6 +270874,13 @@
                         "examples": [
                           true
                         ]
+                      },
+                      "updated_at": {
+                        "type": [
+                          "string",
+                          "null"
+                        ],
+                        "format": "date-time"
                       }
                     },
                     "required": [
@@ -270967,6 +271019,13 @@
                       "examples": [
                         true
                       ]
+                    },
+                    "updated_at": {
+                      "type": [
+                        "string",
+                        "null"
+                      ],
+                      "format": "date-time"
                     }
                   },
                   "required": [
@@ -271158,6 +271217,13 @@
                       "examples": [
                         true
                       ]
+                    },
+                    "updated_at": {
+                      "type": [
+                        "string",
+                        "null"
+                      ],
+                      "format": "date-time"
                     }
                   },
                   "required": [
diff --git a/descriptions-next/ghec/dereferenced/ghec.2022-11-28.deref.yaml b/descriptions-next/ghec/dereferenced/ghec.2022-11-28.deref.yaml
index 5702f39cd7..3a62b7e933 100644
--- a/descriptions-next/ghec/dereferenced/ghec.2022-11-28.deref.yaml
+++ b/descriptions-next/ghec/dereferenced/ghec.2022-11-28.deref.yaml
@@ -20361,6 +20361,11 @@ paths:
                         name:
                           type: string
                           description: Name of the cost center.
+                        description:
+                          type: string
+                          description: Description of the cost center.
+                          x-github:
+                            featureFlag: billing_add_cost_center_description
                         state:
                           type: string
                           description: State of the cost center.
@@ -20444,11 +20449,18 @@ paths:
                 name:
                   type: string
                   description: The name of the cost center (max length 255 characters)
+                description:
+                  type: string
+                  description: The description of the cost center.
+                  x-github:
+                    featureFlag: billing_add_cost_center_description
             examples:
               example-1:
                 summary: Example request to create a cost center
                 value:
                   name: Engineering Team
+                  description: Software development, DevOps, and platform engineering
+                    expenses
       responses:
         '200':
           description: Cost center created successfully
@@ -20463,6 +20475,11 @@ paths:
                   name:
                     type: string
                     description: Name of the cost center
+                  description:
+                    type: string
+                    description: The description of the cost center.
+                    x-github:
+                      featureFlag: billing_add_cost_center_description
                   azure_subscription:
                     type:
                     - string
@@ -20493,6 +20510,8 @@ paths:
                   value:
                     id: abc123
                     name: Engineering Team
+                    description: Software development, DevOps, and platform engineering
+                      expenses
                     resources: []
         '400':
           description: Bad request
@@ -20565,6 +20584,11 @@ paths:
                   name:
                     type: string
                     description: Name of the cost center.
+                  description:
+                    type: string
+                    description: Description of the cost center.
+                    x-github:
+                      featureFlag: billing_add_cost_center_description
                   azure_subscription:
                     type:
                     - string
@@ -20650,11 +20674,17 @@ paths:
                 name:
                   type: string
                   description: The new name for the cost center
+                description:
+                  type: string
+                  description: The new description for the cost center
+                  x-github:
+                    featureFlag: billing_add_cost_center_description
             examples:
               update-cost-center:
                 summary: Update cost center name example
                 value:
                   name: New Cost Center Name
+                  description: Updated description for the cost center
       responses:
         '200':
           description: Response when updating a cost center
@@ -62017,6 +62047,11 @@ paths:
                       type: boolean
                       examples:
                       - true
+                    updated_at:
+                      type:
+                      - string
+                      - 'null'
+                      format: date-time
                   required:
                   - id
                   - key_prefix
diff --git a/descriptions-next/ghec/dereferenced/ghec.deref.json b/descriptions-next/ghec/dereferenced/ghec.deref.json
index 9c1447ad41..b9051a6d24 100644
--- a/descriptions-next/ghec/dereferenced/ghec.deref.json
+++ b/descriptions-next/ghec/dereferenced/ghec.deref.json
@@ -58742,6 +58742,13 @@
                             "type": "string",
                             "description": "Name of the cost center."
                           },
+                          "description": {
+                            "type": "string",
+                            "description": "Description of the cost center.",
+                            "x-github": {
+                              "featureFlag": "billing_add_cost_center_description"
+                            }
+                          },
                           "state": {
                             "type": "string",
                             "description": "State of the cost center.",
@@ -59009,6 +59016,13 @@
                   "name": {
                     "type": "string",
                     "description": "The name of the cost center (max length 255 characters)"
+                  },
+                  "description": {
+                    "type": "string",
+                    "description": "The description of the cost center.",
+                    "x-github": {
+                      "featureFlag": "billing_add_cost_center_description"
+                    }
                   }
                 }
               },
@@ -59016,7 +59030,8 @@
                 "example-1": {
                   "summary": "Example request to create a cost center",
                   "value": {
-                    "name": "Engineering Team"
+                    "name": "Engineering Team",
+                    "description": "Software development, DevOps, and platform engineering expenses"
                   }
                 }
               }
@@ -59039,6 +59054,13 @@
                       "type": "string",
                       "description": "Name of the cost center"
                     },
+                    "description": {
+                      "type": "string",
+                      "description": "The description of the cost center.",
+                      "x-github": {
+                        "featureFlag": "billing_add_cost_center_description"
+                      }
+                    },
                     "azure_subscription": {
                       "type": [
                         "string",
@@ -59079,6 +59101,7 @@
                     "value": {
                       "id": "abc123",
                       "name": "Engineering Team",
+                      "description": "Software development, DevOps, and platform engineering expenses",
                       "resources": []
                     }
                   }
@@ -59194,6 +59217,13 @@
                       "type": "string",
                       "description": "Name of the cost center."
                     },
+                    "description": {
+                      "type": "string",
+                      "description": "Description of the cost center.",
+                      "x-github": {
+                        "featureFlag": "billing_add_cost_center_description"
+                      }
+                    },
                     "azure_subscription": {
                       "type": [
                         "string",
@@ -59452,6 +59482,13 @@
                   "name": {
                     "type": "string",
                     "description": "The new name for the cost center"
+                  },
+                  "description": {
+                    "type": "string",
+                    "description": "The new description for the cost center",
+                    "x-github": {
+                      "featureFlag": "billing_add_cost_center_description"
+                    }
                   }
                 }
               },
@@ -59459,7 +59496,8 @@
                 "update-cost-center": {
                   "summary": "Update cost center name example",
                   "value": {
-                    "name": "New Cost Center Name"
+                    "name": "New Cost Center Name",
+                    "description": "Updated description for the cost center"
                   }
                 }
               }
@@ -59482,6 +59520,13 @@
                       "type": "string",
                       "description": "Name of the cost center."
                     },
+                    "description": {
+                      "type": "string",
+                      "description": "Description of the cost center.",
+                      "x-github": {
+                        "featureFlag": "billing_add_cost_center_description"
+                      }
+                    },
                     "azure_subscription": {
                       "type": [
                         "string",
@@ -270829,6 +270874,13 @@
                         "examples": [
                           true
                         ]
+                      },
+                      "updated_at": {
+                        "type": [
+                          "string",
+                          "null"
+                        ],
+                        "format": "date-time"
                       }
                     },
                     "required": [
@@ -270967,6 +271019,13 @@
                       "examples": [
                         true
                       ]
+                    },
+                    "updated_at": {
+                      "type": [
+                        "string",
+                        "null"
+                      ],
+                      "format": "date-time"
                     }
                   },
                   "required": [
@@ -271158,6 +271217,13 @@
                       "examples": [
                         true
                       ]
+                    },
+                    "updated_at": {
+                      "type": [
+                        "string",
+                        "null"
+                      ],
+                      "format": "date-time"
                     }
                   },
                   "required": [
diff --git a/descriptions-next/ghec/dereferenced/ghec.deref.yaml b/descriptions-next/ghec/dereferenced/ghec.deref.yaml
index 5702f39cd7..3a62b7e933 100644
--- a/descriptions-next/ghec/dereferenced/ghec.deref.yaml
+++ b/descriptions-next/ghec/dereferenced/ghec.deref.yaml
@@ -20361,6 +20361,11 @@ paths:
                         name:
                           type: string
                           description: Name of the cost center.
+                        description:
+                          type: string
+                          description: Description of the cost center.
+                          x-github:
+                            featureFlag: billing_add_cost_center_description
                         state:
                           type: string
                           description: State of the cost center.
@@ -20444,11 +20449,18 @@ paths:
                 name:
                   type: string
                   description: The name of the cost center (max length 255 characters)
+                description:
+                  type: string
+                  description: The description of the cost center.
+                  x-github:
+                    featureFlag: billing_add_cost_center_description
             examples:
               example-1:
                 summary: Example request to create a cost center
                 value:
                   name: Engineering Team
+                  description: Software development, DevOps, and platform engineering
+                    expenses
       responses:
         '200':
           description: Cost center created successfully
@@ -20463,6 +20475,11 @@ paths:
                   name:
                     type: string
                     description: Name of the cost center
+                  description:
+                    type: string
+                    description: The description of the cost center.
+                    x-github:
+                      featureFlag: billing_add_cost_center_description
                   azure_subscription:
                     type:
                     - string
@@ -20493,6 +20510,8 @@ paths:
                   value:
                     id: abc123
                     name: Engineering Team
+                    description: Software development, DevOps, and platform engineering
+                      expenses
                     resources: []
         '400':
           description: Bad request
@@ -20565,6 +20584,11 @@ paths:
                   name:
                     type: string
                     description: Name of the cost center.
+                  description:
+                    type: string
+                    description: Description of the cost center.
+                    x-github:
+                      featureFlag: billing_add_cost_center_description
                   azure_subscription:
                     type:
                     - string
@@ -20650,11 +20674,17 @@ paths:
                 name:
                   type: string
                   description: The new name for the cost center
+                description:
+                  type: string
+                  description: The new description for the cost center
+                  x-github:
+                    featureFlag: billing_add_cost_center_description
             examples:
               update-cost-center:
                 summary: Update cost center name example
                 value:
                   name: New Cost Center Name
+                  description: Updated description for the cost center
       responses:
         '200':
           description: Response when updating a cost center
@@ -62017,6 +62047,11 @@ paths:
                       type: boolean
                       examples:
                       - true
+                    updated_at:
+                      type:
+                      - string
+                      - 'null'
+                      format: date-time
                   required:
                   - id
                   - key_prefix
diff --git a/descriptions-next/ghec/ghec.2022-11-28.json b/descriptions-next/ghec/ghec.2022-11-28.json
index 53ffd7f074..e7441e934f 100644
--- a/descriptions-next/ghec/ghec.2022-11-28.json
+++ b/descriptions-next/ghec/ghec.2022-11-28.json
@@ -9983,6 +9983,13 @@
                   "name": {
                     "type": "string",
                     "description": "The name of the cost center (max length 255 characters)"
+                  },
+                  "description": {
+                    "type": "string",
+                    "description": "The description of the cost center.",
+                    "x-github": {
+                      "featureFlag": "billing_add_cost_center_description"
+                    }
                   }
                 }
               },
@@ -9990,7 +9997,8 @@
                 "example-1": {
                   "summary": "Example request to create a cost center",
                   "value": {
-                    "name": "Engineering Team"
+                    "name": "Engineering Team",
+                    "description": "Software development, DevOps, and platform engineering expenses"
                   }
                 }
               }
@@ -10013,6 +10021,13 @@
                       "type": "string",
                       "description": "Name of the cost center"
                     },
+                    "description": {
+                      "type": "string",
+                      "description": "The description of the cost center.",
+                      "x-github": {
+                        "featureFlag": "billing_add_cost_center_description"
+                      }
+                    },
                     "azure_subscription": {
                       "type": [
                         "string",
@@ -10053,6 +10068,7 @@
                     "value": {
                       "id": "abc123",
                       "name": "Engineering Team",
+                      "description": "Software development, DevOps, and platform engineering expenses",
                       "resources": []
                     }
                   }
@@ -10208,6 +10224,13 @@
                   "name": {
                     "type": "string",
                     "description": "The new name for the cost center"
+                  },
+                  "description": {
+                    "type": "string",
+                    "description": "The new description for the cost center",
+                    "x-github": {
+                      "featureFlag": "billing_add_cost_center_description"
+                    }
                   }
                 }
               },
@@ -10215,7 +10238,8 @@
                 "update-cost-center": {
                   "summary": "Update cost center name example",
                   "value": {
-                    "name": "New Cost Center Name"
+                    "name": "New Cost Center Name",
+                    "description": "Updated description for the cost center"
                   }
                 }
               }
@@ -123291,6 +123315,13 @@
                   "type": "string",
                   "description": "Name of the cost center."
                 },
+                "description": {
+                  "type": "string",
+                  "description": "Description of the cost center.",
+                  "x-github": {
+                    "featureFlag": "billing_add_cost_center_description"
+                  }
+                },
                 "state": {
                   "type": "string",
                   "description": "State of the cost center.",
@@ -123347,6 +123378,13 @@
             "type": "string",
             "description": "Name of the cost center."
           },
+          "description": {
+            "type": "string",
+            "description": "Description of the cost center.",
+            "x-github": {
+              "featureFlag": "billing_add_cost_center_description"
+            }
+          },
           "azure_subscription": {
             "type": [
               "string",
@@ -136907,6 +136945,13 @@
             "examples": [
               true
             ]
+          },
+          "updated_at": {
+            "type": [
+              "string",
+              "null"
+            ],
+            "format": "date-time"
           }
         },
         "required": [
diff --git a/descriptions-next/ghec/ghec.2022-11-28.yaml b/descriptions-next/ghec/ghec.2022-11-28.yaml
index 73e12b3aa0..a0a0658899 100644
--- a/descriptions-next/ghec/ghec.2022-11-28.yaml
+++ b/descriptions-next/ghec/ghec.2022-11-28.yaml
@@ -7032,11 +7032,18 @@ paths:
                 name:
                   type: string
                   description: The name of the cost center (max length 255 characters)
+                description:
+                  type: string
+                  description: The description of the cost center.
+                  x-github:
+                    featureFlag: billing_add_cost_center_description
             examples:
               example-1:
                 summary: Example request to create a cost center
                 value:
                   name: Engineering Team
+                  description: Software development, DevOps, and platform engineering
+                    expenses
       responses:
         '200':
           description: Cost center created successfully
@@ -7051,6 +7058,11 @@ paths:
                   name:
                     type: string
                     description: Name of the cost center
+                  description:
+                    type: string
+                    description: The description of the cost center.
+                    x-github:
+                      featureFlag: billing_add_cost_center_description
                   azure_subscription:
                     type:
                     - string
@@ -7081,6 +7093,8 @@ paths:
                   value:
                     id: abc123
                     name: Engineering Team
+                    description: Software development, DevOps, and platform engineering
+                      expenses
                     resources: []
         '400':
           description: Bad request
@@ -7183,11 +7197,17 @@ paths:
                 name:
                   type: string
                   description: The new name for the cost center
+                description:
+                  type: string
+                  description: The new description for the cost center
+                  x-github:
+                    featureFlag: billing_add_cost_center_description
             examples:
               update-cost-center:
                 summary: Update cost center name example
                 value:
                   name: New Cost Center Name
+                  description: Updated description for the cost center
       responses:
         '200':
           "$ref": "#/components/responses/cost_center"
@@ -89273,6 +89293,11 @@ components:
               name:
                 type: string
                 description: Name of the cost center.
+              description:
+                type: string
+                description: Description of the cost center.
+                x-github:
+                  featureFlag: billing_add_cost_center_description
               state:
                 type: string
                 description: State of the cost center.
@@ -89312,6 +89337,11 @@ components:
         name:
           type: string
           description: Name of the cost center.
+        description:
+          type: string
+          description: Description of the cost center.
+          x-github:
+            featureFlag: billing_add_cost_center_description
         azure_subscription:
           type:
           - string
@@ -99288,6 +99318,11 @@ components:
           type: boolean
           examples:
           - true
+        updated_at:
+          type:
+          - string
+          - 'null'
+          format: date-time
       required:
       - id
       - key_prefix
diff --git a/descriptions-next/ghec/ghec.json b/descriptions-next/ghec/ghec.json
index 53ffd7f074..e7441e934f 100644
--- a/descriptions-next/ghec/ghec.json
+++ b/descriptions-next/ghec/ghec.json
@@ -9983,6 +9983,13 @@
                   "name": {
                     "type": "string",
                     "description": "The name of the cost center (max length 255 characters)"
+                  },
+                  "description": {
+                    "type": "string",
+                    "description": "The description of the cost center.",
+                    "x-github": {
+                      "featureFlag": "billing_add_cost_center_description"
+                    }
                   }
                 }
               },
@@ -9990,7 +9997,8 @@
                 "example-1": {
                   "summary": "Example request to create a cost center",
                   "value": {
-                    "name": "Engineering Team"
+                    "name": "Engineering Team",
+                    "description": "Software development, DevOps, and platform engineering expenses"
                   }
                 }
               }
@@ -10013,6 +10021,13 @@
                       "type": "string",
                       "description": "Name of the cost center"
                     },
+                    "description": {
+                      "type": "string",
+                      "description": "The description of the cost center.",
+                      "x-github": {
+                        "featureFlag": "billing_add_cost_center_description"
+                      }
+                    },
                     "azure_subscription": {
                       "type": [
                         "string",
@@ -10053,6 +10068,7 @@
                     "value": {
                       "id": "abc123",
                       "name": "Engineering Team",
+                      "description": "Software development, DevOps, and platform engineering expenses",
                       "resources": []
                     }
                   }
@@ -10208,6 +10224,13 @@
                   "name": {
                     "type": "string",
                     "description": "The new name for the cost center"
+                  },
+                  "description": {
+                    "type": "string",
+                    "description": "The new description for the cost center",
+                    "x-github": {
+                      "featureFlag": "billing_add_cost_center_description"
+                    }
                   }
                 }
               },
@@ -10215,7 +10238,8 @@
                 "update-cost-center": {
                   "summary": "Update cost center name example",
                   "value": {
-                    "name": "New Cost Center Name"
+                    "name": "New Cost Center Name",
+                    "description": "Updated description for the cost center"
                   }
                 }
               }
@@ -123291,6 +123315,13 @@
                   "type": "string",
                   "description": "Name of the cost center."
                 },
+                "description": {
+                  "type": "string",
+                  "description": "Description of the cost center.",
+                  "x-github": {
+                    "featureFlag": "billing_add_cost_center_description"
+                  }
+                },
                 "state": {
                   "type": "string",
                   "description": "State of the cost center.",
@@ -123347,6 +123378,13 @@
             "type": "string",
             "description": "Name of the cost center."
           },
+          "description": {
+            "type": "string",
+            "description": "Description of the cost center.",
+            "x-github": {
+              "featureFlag": "billing_add_cost_center_description"
+            }
+          },
           "azure_subscription": {
             "type": [
               "string",
@@ -136907,6 +136945,13 @@
             "examples": [
               true
             ]
+          },
+          "updated_at": {
+            "type": [
+              "string",
+              "null"
+            ],
+            "format": "date-time"
           }
         },
         "required": [
diff --git a/descriptions-next/ghec/ghec.yaml b/descriptions-next/ghec/ghec.yaml
index 73e12b3aa0..a0a0658899 100644
--- a/descriptions-next/ghec/ghec.yaml
+++ b/descriptions-next/ghec/ghec.yaml
@@ -7032,11 +7032,18 @@ paths:
                 name:
                   type: string
                   description: The name of the cost center (max length 255 characters)
+                description:
+                  type: string
+                  description: The description of the cost center.
+                  x-github:
+                    featureFlag: billing_add_cost_center_description
             examples:
               example-1:
                 summary: Example request to create a cost center
                 value:
                   name: Engineering Team
+                  description: Software development, DevOps, and platform engineering
+                    expenses
       responses:
         '200':
           description: Cost center created successfully
@@ -7051,6 +7058,11 @@ paths:
                   name:
                     type: string
                     description: Name of the cost center
+                  description:
+                    type: string
+                    description: The description of the cost center.
+                    x-github:
+                      featureFlag: billing_add_cost_center_description
                   azure_subscription:
                     type:
                     - string
@@ -7081,6 +7093,8 @@ paths:
                   value:
                     id: abc123
                     name: Engineering Team
+                    description: Software development, DevOps, and platform engineering
+                      expenses
                     resources: []
         '400':
           description: Bad request
@@ -7183,11 +7197,17 @@ paths:
                 name:
                   type: string
                   description: The new name for the cost center
+                description:
+                  type: string
+                  description: The new description for the cost center
+                  x-github:
+                    featureFlag: billing_add_cost_center_description
             examples:
               update-cost-center:
                 summary: Update cost center name example
                 value:
                   name: New Cost Center Name
+                  description: Updated description for the cost center
       responses:
         '200':
           "$ref": "#/components/responses/cost_center"
@@ -89273,6 +89293,11 @@ components:
               name:
                 type: string
                 description: Name of the cost center.
+              description:
+                type: string
+                description: Description of the cost center.
+                x-github:
+                  featureFlag: billing_add_cost_center_description
               state:
                 type: string
                 description: State of the cost center.
@@ -89312,6 +89337,11 @@ components:
         name:
           type: string
           description: Name of the cost center.
+        description:
+          type: string
+          description: Description of the cost center.
+          x-github:
+            featureFlag: billing_add_cost_center_description
         azure_subscription:
           type:
           - string
@@ -99288,6 +99318,11 @@ components:
           type: boolean
           examples:
           - true
+        updated_at:
+          type:
+          - string
+          - 'null'
+          format: date-time
       required:
       - id
       - key_prefix
diff --git a/descriptions-next/ghes-3.14/dereferenced/ghes-3.14.2022-11-28.deref.json b/descriptions-next/ghes-3.14/dereferenced/ghes-3.14.2022-11-28.deref.json
index 5ffa63cecb..9ab2507b10 100644
--- a/descriptions-next/ghes-3.14/dereferenced/ghes-3.14.2022-11-28.deref.json
+++ b/descriptions-next/ghes-3.14/dereferenced/ghes-3.14.2022-11-28.deref.json
@@ -207887,6 +207887,13 @@
                         "examples": [
                           true
                         ]
+                      },
+                      "updated_at": {
+                        "type": [
+                          "string",
+                          "null"
+                        ],
+                        "format": "date-time"
                       }
                     },
                     "required": [
@@ -208025,6 +208032,13 @@
                       "examples": [
                         true
                       ]
+                    },
+                    "updated_at": {
+                      "type": [
+                        "string",
+                        "null"
+                      ],
+                      "format": "date-time"
                     }
                   },
                   "required": [
@@ -208216,6 +208230,13 @@
                       "examples": [
                         true
                       ]
+                    },
+                    "updated_at": {
+                      "type": [
+                        "string",
+                        "null"
+                      ],
+                      "format": "date-time"
                     }
                   },
                   "required": [
diff --git a/descriptions-next/ghes-3.14/dereferenced/ghes-3.14.2022-11-28.deref.yaml b/descriptions-next/ghes-3.14/dereferenced/ghes-3.14.2022-11-28.deref.yaml
index b9b4d779d4..cf092fdd15 100644
--- a/descriptions-next/ghes-3.14/dereferenced/ghes-3.14.2022-11-28.deref.yaml
+++ b/descriptions-next/ghes-3.14/dereferenced/ghes-3.14.2022-11-28.deref.yaml
@@ -47210,6 +47210,11 @@ paths:
                       type: boolean
                       examples:
                       - true
+                    updated_at:
+                      type:
+                      - string
+                      - 'null'
+                      format: date-time
                   required:
                   - id
                   - key_prefix
diff --git a/descriptions-next/ghes-3.14/dereferenced/ghes-3.14.deref.json b/descriptions-next/ghes-3.14/dereferenced/ghes-3.14.deref.json
index 5ffa63cecb..9ab2507b10 100644
--- a/descriptions-next/ghes-3.14/dereferenced/ghes-3.14.deref.json
+++ b/descriptions-next/ghes-3.14/dereferenced/ghes-3.14.deref.json
@@ -207887,6 +207887,13 @@
                         "examples": [
                           true
                         ]
+                      },
+                      "updated_at": {
+                        "type": [
+                          "string",
+                          "null"
+                        ],
+                        "format": "date-time"
                       }
                     },
                     "required": [
@@ -208025,6 +208032,13 @@
                       "examples": [
                         true
                       ]
+                    },
+                    "updated_at": {
+                      "type": [
+                        "string",
+                        "null"
+                      ],
+                      "format": "date-time"
                     }
                   },
                   "required": [
@@ -208216,6 +208230,13 @@
                       "examples": [
                         true
                       ]
+                    },
+                    "updated_at": {
+                      "type": [
+                        "string",
+                        "null"
+                      ],
+                      "format": "date-time"
                     }
                   },
                   "required": [
diff --git a/descriptions-next/ghes-3.14/dereferenced/ghes-3.14.deref.yaml b/descriptions-next/ghes-3.14/dereferenced/ghes-3.14.deref.yaml
index b9b4d779d4..cf092fdd15 100644
--- a/descriptions-next/ghes-3.14/dereferenced/ghes-3.14.deref.yaml
+++ b/descriptions-next/ghes-3.14/dereferenced/ghes-3.14.deref.yaml
@@ -47210,6 +47210,11 @@ paths:
                       type: boolean
                       examples:
                       - true
+                    updated_at:
+                      type:
+                      - string
+                      - 'null'
+                      format: date-time
                   required:
                   - id
                   - key_prefix
diff --git a/descriptions-next/ghes-3.14/ghes-3.14.2022-11-28.json b/descriptions-next/ghes-3.14/ghes-3.14.2022-11-28.json
index 0d38711fb6..965a56cbda 100644
--- a/descriptions-next/ghes-3.14/ghes-3.14.2022-11-28.json
+++ b/descriptions-next/ghes-3.14/ghes-3.14.2022-11-28.json
@@ -111975,6 +111975,13 @@
             "examples": [
               true
             ]
+          },
+          "updated_at": {
+            "type": [
+              "string",
+              "null"
+            ],
+            "format": "date-time"
           }
         },
         "required": [
diff --git a/descriptions-next/ghes-3.14/ghes-3.14.2022-11-28.yaml b/descriptions-next/ghes-3.14/ghes-3.14.2022-11-28.yaml
index 523ceb8cf7..f1f6fb1942 100644
--- a/descriptions-next/ghes-3.14/ghes-3.14.2022-11-28.yaml
+++ b/descriptions-next/ghes-3.14/ghes-3.14.2022-11-28.yaml
@@ -80600,6 +80600,11 @@ components:
           type: boolean
           examples:
           - true
+        updated_at:
+          type:
+          - string
+          - 'null'
+          format: date-time
       required:
       - id
       - key_prefix
diff --git a/descriptions-next/ghes-3.14/ghes-3.14.json b/descriptions-next/ghes-3.14/ghes-3.14.json
index 0d38711fb6..965a56cbda 100644
--- a/descriptions-next/ghes-3.14/ghes-3.14.json
+++ b/descriptions-next/ghes-3.14/ghes-3.14.json
@@ -111975,6 +111975,13 @@
             "examples": [
               true
             ]
+          },
+          "updated_at": {
+            "type": [
+              "string",
+              "null"
+            ],
+            "format": "date-time"
           }
         },
         "required": [
diff --git a/descriptions-next/ghes-3.14/ghes-3.14.yaml b/descriptions-next/ghes-3.14/ghes-3.14.yaml
index 523ceb8cf7..f1f6fb1942 100644
--- a/descriptions-next/ghes-3.14/ghes-3.14.yaml
+++ b/descriptions-next/ghes-3.14/ghes-3.14.yaml
@@ -80600,6 +80600,11 @@ components:
           type: boolean
           examples:
           - true
+        updated_at:
+          type:
+          - string
+          - 'null'
+          format: date-time
       required:
       - id
       - key_prefix
diff --git a/descriptions-next/ghes-3.15/dereferenced/ghes-3.15.2022-11-28.deref.json b/descriptions-next/ghes-3.15/dereferenced/ghes-3.15.2022-11-28.deref.json
index a7a5afac5c..3076aebdca 100644
--- a/descriptions-next/ghes-3.15/dereferenced/ghes-3.15.2022-11-28.deref.json
+++ b/descriptions-next/ghes-3.15/dereferenced/ghes-3.15.2022-11-28.deref.json
@@ -212386,6 +212386,13 @@
                         "examples": [
                           true
                         ]
+                      },
+                      "updated_at": {
+                        "type": [
+                          "string",
+                          "null"
+                        ],
+                        "format": "date-time"
                       }
                     },
                     "required": [
@@ -212524,6 +212531,13 @@
                       "examples": [
                         true
                       ]
+                    },
+                    "updated_at": {
+                      "type": [
+                        "string",
+                        "null"
+                      ],
+                      "format": "date-time"
                     }
                   },
                   "required": [
@@ -212715,6 +212729,13 @@
                       "examples": [
                         true
                       ]
+                    },
+                    "updated_at": {
+                      "type": [
+                        "string",
+                        "null"
+                      ],
+                      "format": "date-time"
                     }
                   },
                   "required": [
diff --git a/descriptions-next/ghes-3.15/dereferenced/ghes-3.15.2022-11-28.deref.yaml b/descriptions-next/ghes-3.15/dereferenced/ghes-3.15.2022-11-28.deref.yaml
index 2244929453..914c9f8dd4 100644
--- a/descriptions-next/ghes-3.15/dereferenced/ghes-3.15.2022-11-28.deref.yaml
+++ b/descriptions-next/ghes-3.15/dereferenced/ghes-3.15.2022-11-28.deref.yaml
@@ -48615,6 +48615,11 @@ paths:
                       type: boolean
                       examples:
                       - true
+                    updated_at:
+                      type:
+                      - string
+                      - 'null'
+                      format: date-time
                   required:
                   - id
                   - key_prefix
diff --git a/descriptions-next/ghes-3.15/dereferenced/ghes-3.15.deref.json b/descriptions-next/ghes-3.15/dereferenced/ghes-3.15.deref.json
index a7a5afac5c..3076aebdca 100644
--- a/descriptions-next/ghes-3.15/dereferenced/ghes-3.15.deref.json
+++ b/descriptions-next/ghes-3.15/dereferenced/ghes-3.15.deref.json
@@ -212386,6 +212386,13 @@
                         "examples": [
                           true
                         ]
+                      },
+                      "updated_at": {
+                        "type": [
+                          "string",
+                          "null"
+                        ],
+                        "format": "date-time"
                       }
                     },
                     "required": [
@@ -212524,6 +212531,13 @@
                       "examples": [
                         true
                       ]
+                    },
+                    "updated_at": {
+                      "type": [
+                        "string",
+                        "null"
+                      ],
+                      "format": "date-time"
                     }
                   },
                   "required": [
@@ -212715,6 +212729,13 @@
                       "examples": [
                         true
                       ]
+                    },
+                    "updated_at": {
+                      "type": [
+                        "string",
+                        "null"
+                      ],
+                      "format": "date-time"
                     }
                   },
                   "required": [
diff --git a/descriptions-next/ghes-3.15/dereferenced/ghes-3.15.deref.yaml b/descriptions-next/ghes-3.15/dereferenced/ghes-3.15.deref.yaml
index 2244929453..914c9f8dd4 100644
--- a/descriptions-next/ghes-3.15/dereferenced/ghes-3.15.deref.yaml
+++ b/descriptions-next/ghes-3.15/dereferenced/ghes-3.15.deref.yaml
@@ -48615,6 +48615,11 @@ paths:
                       type: boolean
                       examples:
                       - true
+                    updated_at:
+                      type:
+                      - string
+                      - 'null'
+                      format: date-time
                   required:
                   - id
                   - key_prefix
diff --git a/descriptions-next/ghes-3.15/ghes-3.15.2022-11-28.json b/descriptions-next/ghes-3.15/ghes-3.15.2022-11-28.json
index 08f0234894..5ea36b973a 100644
--- a/descriptions-next/ghes-3.15/ghes-3.15.2022-11-28.json
+++ b/descriptions-next/ghes-3.15/ghes-3.15.2022-11-28.json
@@ -112875,6 +112875,13 @@
             "examples": [
               true
             ]
+          },
+          "updated_at": {
+            "type": [
+              "string",
+              "null"
+            ],
+            "format": "date-time"
           }
         },
         "required": [
diff --git a/descriptions-next/ghes-3.15/ghes-3.15.2022-11-28.yaml b/descriptions-next/ghes-3.15/ghes-3.15.2022-11-28.yaml
index 671ea7c251..59e0e29462 100644
--- a/descriptions-next/ghes-3.15/ghes-3.15.2022-11-28.yaml
+++ b/descriptions-next/ghes-3.15/ghes-3.15.2022-11-28.yaml
@@ -81406,6 +81406,11 @@ components:
           type: boolean
           examples:
           - true
+        updated_at:
+          type:
+          - string
+          - 'null'
+          format: date-time
       required:
       - id
       - key_prefix
diff --git a/descriptions-next/ghes-3.15/ghes-3.15.json b/descriptions-next/ghes-3.15/ghes-3.15.json
index 08f0234894..5ea36b973a 100644
--- a/descriptions-next/ghes-3.15/ghes-3.15.json
+++ b/descriptions-next/ghes-3.15/ghes-3.15.json
@@ -112875,6 +112875,13 @@
             "examples": [
               true
             ]
+          },
+          "updated_at": {
+            "type": [
+              "string",
+              "null"
+            ],
+            "format": "date-time"
           }
         },
         "required": [
diff --git a/descriptions-next/ghes-3.15/ghes-3.15.yaml b/descriptions-next/ghes-3.15/ghes-3.15.yaml
index 671ea7c251..59e0e29462 100644
--- a/descriptions-next/g{"code":"internal","msg":"git-diff-tree: context deadline exceeded","meta":{"cause":"*fmt.wrapError"}}