diff --git a/packages/sdk/js/src/v2/gen/types.gen.ts b/packages/sdk/js/src/v2/gen/types.gen.ts
index 498d158e86..9a1c8afd52 100644
--- a/packages/sdk/js/src/v2/gen/types.gen.ts
+++ b/packages/sdk/js/src/v2/gen/types.gen.ts
@@ -1829,6 +1829,12 @@ export type SessionNotFoundError = {
   message: string
 }
 
+export type ServiceUnavailableError = {
+  _tag: "ServiceUnavailableError"
+  message: string
+  service?: string
+}
+
 export type V2SessionMessagesResponse = {
   items: Array<SessionMessage>
   cursor: {
@@ -1837,12 +1843,6 @@ export type V2SessionMessagesResponse = {
   }
 }
 
-export type ServiceUnavailableError = {
-  _tag: "ServiceUnavailableError"
-  message: string
-  service?: string
-}
-
 export type ProviderNotFoundError = {
   _tag: "ProviderNotFoundError"
   providerID: string
@@ -7184,6 +7184,10 @@ export type V2SessionPromptErrors = {
    * SessionNotFoundError
    */
   404: SessionNotFoundError
+  /**
+   * ServiceUnavailableError
+   */
+  503: ServiceUnavailableError
 }
 
 export type V2SessionPromptError = V2SessionPromptErrors[keyof V2SessionPromptErrors]
@@ -7222,6 +7226,10 @@ export type V2SessionCompactErrors = {
    * SessionNotFoundError
    */
   404: SessionNotFoundError
+  /**
+   * ServiceUnavailableError
+   */
+  503: ServiceUnavailableError
 }
 
 export type V2SessionCompactError = V2SessionCompactErrors[keyof V2SessionCompactErrors]
@@ -7260,6 +7268,10 @@ export type V2SessionWaitErrors = {
    * SessionNotFoundError
    */
   404: SessionNotFoundError
+  /**
+   * ServiceUnavailableError
+   */
+  503: ServiceUnavailableError
 }
 
 export type V2SessionWaitError = V2SessionWaitErrors[keyof V2SessionWaitErrors]
diff --git a/packages/sdk/openapi.json b/packages/sdk/openapi.json
index 17cd256d6e..88347e8a2e 100644
--- a/packages/sdk/openapi.json
+++ b/packages/sdk/openapi.json
@@ -8227,6 +8227,16 @@
                 }
               }
             }
+          },
+          "503": {
+            "description": "ServiceUnavailableError",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/ServiceUnavailableError"
+                }
+              }
+            }
           }
         },
         "description": "Create a v2 session message and queue it for the agent loop.",
@@ -8323,6 +8333,16 @@
                 }
               }
             }
+          },
+          "503": {
+            "description": "ServiceUnavailableError",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/ServiceUnavailableError"
+                }
+              }
+            }
           }
         },
         "description": "Compact a v2 session conversation.",
@@ -8400,6 +8420,16 @@
                 }
               }
             }
+          },
+          "503": {
+            "description": "ServiceUnavailableError",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/ServiceUnavailableError"
+                }
+              }
+            }
           }
         },
         "description": "Wait for a v2 session agent loop to become idle.",
@@ -15685,6 +15715,23 @@
         "required": ["_tag", "sessionID", "message"],
         "additionalProperties": false
       },
+      "ServiceUnavailableError": {
+        "type": "object",
+        "properties": {
+          "_tag": {
+            "type": "string",
+            "enum": ["ServiceUnavailableError"]
+          },
+          "message": {
+            "type": "string"
+          },
+          "service": {
+            "type": "string"
+          }
+        },
+        "required": ["_tag", "message"],
+        "additionalProperties": false
+      },
       "V2SessionMessagesResponse": {
         "type": "object",
         "properties": {
@@ -15710,23 +15757,6 @@
         "required": ["items", "cursor"],
         "additionalProperties": false
       },
-      "ServiceUnavailableError": {
-        "type": "object",
-        "properties": {
-          "_tag": {
-            "type": "string",
-            "enum": ["ServiceUnavailableError"]
-          },
-          "message": {
-            "type": "string"
-          },
-          "service": {
-            "type": "string"
-          }
-        },
-        "required": ["_tag", "message"],
-        "additionalProperties": false
-      },
       "ProviderNotFoundError": {
         "type": "object",
         "properties": {