diff --git a/api/api.yaml b/api/api.yaml
index aaf0400..56986fa 100644
--- a/api/api.yaml
+++ b/api/api.yaml
@@ -183,7 +183,7 @@ paths:
                 $ref: "../problem/problem.yaml#/components/schemas/ApiProblem"
     post:
       summary: Create a new project
-      description: Creates a new project within an organization. A project is a container for provider apps, integrations, and connections. 
+      description: Creates a new project within an organization. A project is a container for provider apps, integrations, and connections.
       operationId: createProject
       tags: ["Project"]
       security: # Only bearer auth works for this endpoint
@@ -1587,7 +1587,7 @@ paths:
         - name: groupRef
           in: query
           required: true
-          description: The ID of the user group that has access to this installation. 
+          description: The ID of the user group that has access to this installation.
           example: group-123
           schema:
             type: string
@@ -2146,7 +2146,7 @@ paths:
                 $ref: "../problem/problem.yaml#/components/schemas/ApiProblem"
   /projects/{projectIdOrName}/integrations/{integrationId}/installations/{installationId}/objects/{objectName}/backfill-progress:
     get:
-      summary: Get backfill progress 
+      summary: Get backfill progress
       operationId: getBackfillProgress
       tags: ["Operation"]
       description: Retrieve backfill progress (records processed, estimated total) for an object. Use to track progress of an initial data sync.
@@ -2216,7 +2216,7 @@ paths:
     get:
       summary: Get an operation
       description: |
-        Retrieve a single operation by ID. An operation represents an async read, write, or subscribe action for an installation. Use this endpoint to poll for status, inspect the result summary, or fetch metadata such as backfill progress or write outcome details. 
+        Retrieve a single operation by ID. An operation represents an async read, write, or subscribe action for an installation. Use this endpoint to poll for status, inspect the result summary, or fetch metadata such as backfill progress or write outcome details.
       operationId: getOperation
       tags: ["Operation"]
       parameters:
@@ -5205,7 +5205,7 @@ components:
         revisionId:
           type: string
           description: >
-            The ID of the revision that was current when this config was created or last updated. 
+            The ID of the revision that was current when this config was created or last updated.
           example: revision-123
         createTime:
           type: string
@@ -5432,13 +5432,17 @@ components:
           description: The API key to use for the connection.
         customAuth:
           type: object
-          description: Values used for custom auth input variables.
-          additionalProperties:
-            type: string
-            nullable: false
+          description:
+            Values used for custom auth input variables. Most values are strings
+            (API keys, tokens, etc.), but structured values like arrays are also
+            accepted — for example, googleWorkspaceDelegation sends a `scopes`
+            array alongside the service account key.
+          additionalProperties: true
           example:
-            apiKey: "abcd1234"
-            password: "secret"
+            serviceAccountKey: "base64encodedkey"
+            scopes:
+              - "https://www.googleapis.com/auth/calendar"
+              - "https://mail.google.com/"
         basicAuth:
           type: object
           required:
@@ -5600,13 +5604,13 @@ components:
           description: Unique identifier for this operation. Use this to fetch operation details or list logs for debugging.
         installationId:
           type: string
-          description: The Ampersand installation ID (customer instance) that this operation ran for. 
+          description: The Ampersand installation ID (customer instance) that this operation ran for.
         status:
           type: string
           description: |
             The status of the operation.
             - `success`: The operation completed successfully
-            - `failure`: The operation failed 
+            - `failure`: The operation failed
             - `in_progress`: The operation is currently running
           example: success
         result:
diff --git a/api/generated/api.json b/api/generated/api.json
index e569d8d..12dc5b5 100644
--- a/api/generated/api.json
+++ b/api/generated/api.json
@@ -12626,7 +12626,7 @@
                           },
                           "revisionId": {
                             "type": "string",
-                            "description": "The ID of the revision that was current when this config was created or last updated. \n",
+                            "description": "The ID of the revision that was current when this config was created or last updated.\n",
                             "example": "revision-123"
                           },
                           "createTime": {
@@ -16924,7 +16924,7 @@
                         },
                         "revisionId": {
                           "type": "string",
-                          "description": "The ID of the revision that was current when this config was created or last updated. \n",
+                          "description": "The ID of the revision that was current when this config was created or last updated.\n",
                           "example": "revision-123"
                         },
                         "createTime": {
@@ -19814,7 +19814,7 @@
                         },
                         "revisionId": {
                           "type": "string",
-                          "description": "The ID of the revision that was current when this config was created or last updated. \n",
+                          "description": "The ID of the revision that was current when this config was created or last updated.\n",
                           "example": "revision-123"
                         },
                         "createTime": {
@@ -23260,7 +23260,7 @@
                         },
                         "revisionId": {
                           "type": "string",
-                          "description": "The ID of the revision that was current when this config was created or last updated. \n",
+                          "description": "The ID of the revision that was current when this config was created or last updated.\n",
                           "example": "revision-123"
                         },
                         "createTime": {
@@ -25992,7 +25992,7 @@
                         },
                         "revisionId": {
                           "type": "string",
-                          "description": "The ID of the revision that was current when this config was created or last updated. \n",
+                          "description": "The ID of the revision that was current when this config was created or last updated.\n",
                           "example": "revision-123"
                         },
                         "createTime": {
@@ -29245,7 +29245,7 @@
                           },
                           "revisionId": {
                             "type": "string",
-                            "description": "The ID of the revision that was current when this config was created or last updated. \n",
+                            "description": "The ID of the revision that was current when this config was created or last updated.\n",
                             "example": "revision-123"
                           },
                           "createTime": {
@@ -33626,7 +33626,7 @@
                           },
                           "status": {
                             "type": "string",
-                            "description": "The status of the operation.\n- `success`: The operation completed successfully\n- `failure`: The operation failed \n- `in_progress`: The operation is currently running\n",
+                            "description": "The status of the operation.\n- `success`: The operation completed successfully\n- `failure`: The operation failed\n- `in_progress`: The operation is currently running\n",
                             "example": "success"
                           },
                           "result": {
@@ -35233,7 +35233,7 @@
     "/projects/{projectIdOrName}/operations/{operationId}": {
       "get": {
         "summary": "Get an operation",
-        "description": "Retrieve a single operation by ID. An operation represents an async read, write, or subscribe action for an installation. Use this endpoint to poll for status, inspect the result summary, or fetch metadata such as backfill progress or write outcome details. \n",
+        "description": "Retrieve a single operation by ID. An operation represents an async read, write, or subscribe action for an installation. Use this endpoint to poll for status, inspect the result summary, or fetch metadata such as backfill progress or write outcome details.\n",
         "operationId": "getOperation",
         "tags": [
           "Operation"
@@ -35307,7 +35307,7 @@
                     },
                     "status": {
                       "type": "string",
-                      "description": "The status of the operation.\n- `success`: The operation completed successfully\n- `failure`: The operation failed \n- `in_progress`: The operation is currently running\n",
+                      "description": "The status of the operation.\n- `success`: The operation completed successfully\n- `failure`: The operation failed\n- `in_progress`: The operation is currently running\n",
                       "example": "success"
                     },
                     "result": {
@@ -43473,14 +43473,14 @@
                       },
                       "customAuth": {
                         "type": "object",
-                        "description": "Values used for custom auth input variables.",
-                        "additionalProperties": {
-                          "type": "string",
-                          "nullable": false
-                        },
+                        "description": "Values used for custom auth input variables. Most values are strings (API keys, tokens, etc.), but structured values like arrays are also accepted — for example, googleWorkspaceDelegation sends a `scopes` array alongside the service account key.",
+                        "additionalProperties": true,
                         "example": {
-                          "apiKey": "abcd1234",
-                          "password": "secret"
+                          "serviceAccountKey": "base64encodedkey",
+                          "scopes": [
+                            "https://www.googleapis.com/auth/calendar",
+                            "https://mail.google.com/"
+                          ]
                         }
                       },
                       "basicAuth": {
@@ -45764,14 +45764,14 @@
                       },
                       "customAuth": {
                         "type": "object",
-                        "description": "Values used for custom auth input variables.",
-                        "additionalProperties": {
-                          "type": "string",
-                          "nullable": false
-                        },
+                        "description": "Values used for custom auth input variables. Most values are strings (API keys, tokens, etc.), but structured values like arrays are also accepted — for example, googleWorkspaceDelegation sends a `scopes` array alongside the service account key.",
+                        "additionalProperties": true,
                         "example": {
-                          "apiKey": "abcd1234",
-                          "password": "secret"
+                          "serviceAccountKey": "base64encodedkey",
+                          "scopes": [
+                            "https://www.googleapis.com/auth/calendar",
+                            "https://mail.google.com/"
+                          ]
                         }
                       },
                       "basicAuth": {
@@ -68265,7 +68265,7 @@
               },
               "revisionId": {
                 "type": "string",
-                "description": "The ID of the revision that was current when this config was created or last updated. \n",
+                "description": "The ID of the revision that was current when this config was created or last updated.\n",
                 "example": "revision-123"
               },
               "createTime": {
@@ -69905,7 +69905,7 @@
           },
           "revisionId": {
             "type": "string",
-            "description": "The ID of the revision that was current when this config was created or last updated. \n",
+            "description": "The ID of the revision that was current when this config was created or last updated.\n",
             "example": "revision-123"
           },
           "createTime": {
@@ -72046,14 +72046,14 @@
               },
               "customAuth": {
                 "type": "object",
-                "description": "Values used for custom auth input variables.",
-                "additionalProperties": {
-                  "type": "string",
-                  "nullable": false
-                },
+                "description": "Values used for custom auth input variables. Most values are strings (API keys, tokens, etc.), but structured values like arrays are also accepted — for example, googleWorkspaceDelegation sends a `scopes` array alongside the service account key.",
+                "additionalProperties": true,
                 "example": {
-                  "apiKey": "abcd1234",
-                  "password": "secret"
+                  "serviceAccountKey": "base64encodedkey",
+                  "scopes": [
+                    "https://www.googleapis.com/auth/calendar",
+                    "https://mail.google.com/"
+                  ]
                 }
               },
               "basicAuth": {
@@ -72257,14 +72257,14 @@
           },
           "customAuth": {
             "type": "object",
-            "description": "Values used for custom auth input variables.",
-            "additionalProperties": {
-              "type": "string",
-              "nullable": false
-            },
+            "description": "Values used for custom auth input variables. Most values are strings (API keys, tokens, etc.), but structured values like arrays are also accepted — for example, googleWorkspaceDelegation sends a `scopes` array alongside the service account key.",
+            "additionalProperties": true,
             "example": {
-              "apiKey": "abcd1234",
-              "password": "secret"
+              "serviceAccountKey": "base64encodedkey",
+              "scopes": [
+                "https://www.googleapis.com/auth/calendar",
+                "https://mail.google.com/"
+              ]
             }
           },
           "basicAuth": {
@@ -72469,14 +72469,14 @@
               },
               "customAuth": {
                 "type": "object",
-                "description": "Values used for custom auth input variables.",
-                "additionalProperties": {
-                  "type": "string",
-                  "nullable": false
-                },
+                "description": "Values used for custom auth input variables. Most values are strings (API keys, tokens, etc.), but structured values like arrays are also accepted — for example, googleWorkspaceDelegation sends a `scopes` array alongside the service account key.",
+                "additionalProperties": true,
                 "example": {
-                  "apiKey": "abcd1234",
-                  "password": "secret"
+                  "serviceAccountKey": "base64encodedkey",
+                  "scopes": [
+                    "https://www.googleapis.com/auth/calendar",
+                    "https://mail.google.com/"
+                  ]
                 }
               },
               "basicAuth": {
@@ -72739,7 +72739,7 @@
           },
           "status": {
             "type": "string",
-            "description": "The status of the operation.\n- `success`: The operation completed successfully\n- `failure`: The operation failed \n- `in_progress`: The operation is currently running\n",
+            "description": "The status of the operation.\n- `success`: The operation completed successfully\n- `failure`: The operation failed\n- `in_progress`: The operation is currently running\n",
             "example": "success"
           },
           "result": {