diff --git a/codex-rs/app-server-protocol/schema/json/ClientRequest.json b/codex-rs/app-server-protocol/schema/json/ClientRequest.json
index 97b5f698c..7595527c2 100644
--- a/codex-rs/app-server-protocol/schema/json/ClientRequest.json
+++ b/codex-rs/app-server-protocol/schema/json/ClientRequest.json
@@ -423,7 +423,6 @@
           ]
         },
         "includeLayers": {
-          "default": false,
           "type": "boolean"
         }
       },
@@ -721,8 +720,7 @@
         }
       },
       "required": [
-        "classification",
-        "includeLogs"
+        "classification"
       ],
       "type": "object"
     },
@@ -1034,7 +1032,6 @@
     "GetAccountParams": {
       "properties": {
         "refreshToken": {
-          "default": false,
           "description": "When `true`, requests a proactive token refresh before returning.\n\nIn managed auth mode this triggers the normal refresh-token flow. In external auth mode this flag is ignored. Clients should refresh tokens themselves and call `account/login/start` with `chatgptAuthTokens`.",
           "type": "boolean"
         }
@@ -3424,7 +3421,6 @@
     "ThreadReadParams": {
       "properties": {
         "includeTurns": {
-          "default": false,
           "description": "When true, include turns and their items from rollout history.",
           "type": "boolean"
         },
diff --git a/codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.schemas.json b/codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.schemas.json
index 155afbb29..c0fbcc165 100644
--- a/codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.schemas.json
+++ b/codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.schemas.json
@@ -7691,7 +7691,6 @@
             ]
           },
           "includeLayers": {
-            "default": false,
             "type": "boolean"
           }
         },
@@ -8593,8 +8592,7 @@
           }
         },
         "required": [
-          "classification",
-          "includeLogs"
+          "classification"
         ],
         "title": "FeedbackUploadParams",
         "type": "object"
@@ -9370,7 +9368,6 @@
         "$schema": "http://json-schema.org/draft-07/schema#",
         "properties": {
           "refreshToken": {
-            "default": false,
             "description": "When `true`, requests a proactive token refresh before returning.\n\nIn managed auth mode this triggers the normal refresh-token flow. In external auth mode this flag is ignored. Clients should refresh tokens themselves and call `account/login/start` with `chatgptAuthTokens`.",
             "type": "boolean"
           }
@@ -16965,7 +16962,6 @@
         "$schema": "http://json-schema.org/draft-07/schema#",
         "properties": {
           "includeTurns": {
-            "default": false,
             "description": "When true, include turns and their items from rollout history.",
             "type": "boolean"
           },
diff --git a/codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.v2.schemas.json b/codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.v2.schemas.json
index a636cf1de..c27890931 100644
--- a/codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.v2.schemas.json
+++ b/codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.v2.schemas.json
@@ -4060,7 +4060,6 @@
           ]
         },
         "includeLayers": {
-          "default": false,
           "type": "boolean"
         }
       },
@@ -4962,8 +4961,7 @@
         }
       },
       "required": [
-        "classification",
-        "includeLogs"
+        "classification"
       ],
       "title": "FeedbackUploadParams",
       "type": "object"
@@ -5850,7 +5848,6 @@
       "$schema": "http://json-schema.org/draft-07/schema#",
       "properties": {
         "refreshToken": {
-          "default": false,
           "description": "When `true`, requests a proactive token refresh before returning.\n\nIn managed auth mode this triggers the normal refresh-token flow. In external auth mode this flag is ignored. Clients should refresh tokens themselves and call `account/login/start` with `chatgptAuthTokens`.",
           "type": "boolean"
         }
@@ -14789,7 +14786,6 @@
       "$schema": "http://json-schema.org/draft-07/schema#",
       "properties": {
         "includeTurns": {
-          "default": false,
           "description": "When true, include turns and their items from rollout history.",
           "type": "boolean"
         },
diff --git a/codex-rs/app-server-protocol/schema/json/v2/ConfigReadParams.json b/codex-rs/app-server-protocol/schema/json/v2/ConfigReadParams.json
index b173d2ba9..db38089a5 100644
--- a/codex-rs/app-server-protocol/schema/json/v2/ConfigReadParams.json
+++ b/codex-rs/app-server-protocol/schema/json/v2/ConfigReadParams.json
@@ -9,7 +9,6 @@
       ]
     },
     "includeLayers": {
-      "default": false,
       "type": "boolean"
     }
   },
diff --git a/codex-rs/app-server-protocol/schema/json/v2/FeedbackUploadParams.json b/codex-rs/app-server-protocol/schema/json/v2/FeedbackUploadParams.json
index 07c209860..3bf0c6219 100644
--- a/codex-rs/app-server-protocol/schema/json/v2/FeedbackUploadParams.json
+++ b/codex-rs/app-server-protocol/schema/json/v2/FeedbackUploadParams.json
@@ -39,8 +39,7 @@
     }
   },
   "required": [
-    "classification",
-    "includeLogs"
+    "classification"
   ],
   "title": "FeedbackUploadParams",
   "type": "object"
diff --git a/codex-rs/app-server-protocol/schema/json/v2/GetAccountParams.json b/codex-rs/app-server-protocol/schema/json/v2/GetAccountParams.json
index ca18a451e..445e90c10 100644
--- a/codex-rs/app-server-protocol/schema/json/v2/GetAccountParams.json
+++ b/codex-rs/app-server-protocol/schema/json/v2/GetAccountParams.json
@@ -2,7 +2,6 @@
   "$schema": "http://json-schema.org/draft-07/schema#",
   "properties": {
     "refreshToken": {
-      "default": false,
       "description": "When `true`, requests a proactive token refresh before returning.\n\nIn managed auth mode this triggers the normal refresh-token flow. In external auth mode this flag is ignored. Clients should refresh tokens themselves and call `account/login/start` with `chatgptAuthTokens`.",
       "type": "boolean"
     }
diff --git a/codex-rs/app-server-protocol/schema/json/v2/ThreadReadParams.json b/codex-rs/app-server-protocol/schema/json/v2/ThreadReadParams.json
index f5e5503cc..5fb1bcc17 100644
--- a/codex-rs/app-server-protocol/schema/json/v2/ThreadReadParams.json
+++ b/codex-rs/app-server-protocol/schema/json/v2/ThreadReadParams.json
@@ -2,7 +2,6 @@
   "$schema": "http://json-schema.org/draft-07/schema#",
   "properties": {
     "includeTurns": {
-      "default": false,
       "description": "When true, include turns and their items from rollout history.",
       "type": "boolean"
     },
diff --git a/codex-rs/app-server-protocol/schema/typescript/v2/ConfigReadParams.ts b/codex-rs/app-server-protocol/schema/typescript/v2/ConfigReadParams.ts
index 1fd418d18..7acf72c85 100644
--- a/codex-rs/app-server-protocol/schema/typescript/v2/ConfigReadParams.ts
+++ b/codex-rs/app-server-protocol/schema/typescript/v2/ConfigReadParams.ts
@@ -2,7 +2,7 @@
 
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
 
-export type ConfigReadParams = { includeLayers: boolean,
+export type ConfigReadParams = { includeLayers?: boolean,
 /**
  * Optional working directory to resolve project config layers. If specified,
  * return the effective config as seen from that directory (i.e., including any
diff --git a/codex-rs/app-server-protocol/schema/typescript/v2/FeedbackUploadParams.ts b/codex-rs/app-server-protocol/schema/typescript/v2/FeedbackUploadParams.ts
index 86d9de2f0..2afabd6e4 100644
--- a/codex-rs/app-server-protocol/schema/typescript/v2/FeedbackUploadParams.ts
+++ b/codex-rs/app-server-protocol/schema/typescript/v2/FeedbackUploadParams.ts
@@ -2,4 +2,4 @@
 
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
 
-export type FeedbackUploadParams = { classification: string, reason?: string | null, threadId?: string | null, includeLogs: boolean, extraLogFiles?: Array<string> | null, tags?: { [key in string]?: string } | null, };
+export type FeedbackUploadParams = { classification: string, reason?: string | null, threadId?: string | null, includeLogs?: boolean, extraLogFiles?: Array<string> | null, tags?: { [key in string]?: string } | null, };
diff --git a/codex-rs/app-server-protocol/schema/typescript/v2/GetAccountParams.ts b/codex-rs/app-server-protocol/schema/typescript/v2/GetAccountParams.ts
index a5c5c25f6..9e82ef5e1 100644
--- a/codex-rs/app-server-protocol/schema/typescript/v2/GetAccountParams.ts
+++ b/codex-rs/app-server-protocol/schema/typescript/v2/GetAccountParams.ts
@@ -10,4 +10,4 @@ export type GetAccountParams = {
  * external auth mode this flag is ignored. Clients should refresh tokens
  * themselves and call `account/login/start` with `chatgptAuthTokens`.
  */
-refreshToken: boolean, };
+refreshToken?: boolean, };
diff --git a/codex-rs/app-server-protocol/schema/typescript/v2/ThreadReadParams.ts b/codex-rs/app-server-protocol/schema/typescript/v2/ThreadReadParams.ts
index 64169d2bf..c26e89648 100644
--- a/codex-rs/app-server-protocol/schema/typescript/v2/ThreadReadParams.ts
+++ b/codex-rs/app-server-protocol/schema/typescript/v2/ThreadReadParams.ts
@@ -6,4 +6,4 @@ export type ThreadReadParams = { threadId: string,
 /**
  * When true, include turns and their items from rollout history.
  */
-includeTurns: boolean, };
+includeTurns?: boolean, };
diff --git a/codex-rs/app-server-protocol/src/protocol/common.rs b/codex-rs/app-server-protocol/src/protocol/common.rs
index dd1971116..a8bec6b40 100644
--- a/codex-rs/app-server-protocol/src/protocol/common.rs
+++ b/codex-rs/app-server-protocol/src/protocol/common.rs
@@ -2547,8 +2547,22 @@ mod tests {
             json!({
                 "method": "account/read",
                 "id": 6,
+                "params": {}
+            }),
+            serde_json::to_value(&request)?,
+        );
+        let request = ClientRequest::GetAccount {
+            request_id: RequestId::Integer(7),
+            params: v2::GetAccountParams {
+                refresh_token: true,
+            },
+        };
+        assert_eq!(
+            json!({
+                "method": "account/read",
+                "id": 7,
                 "params": {
-                    "refreshToken": false
+                    "refreshToken": true
                 }
             }),
             serde_json::to_value(&request)?,
diff --git a/codex-rs/app-server-protocol/src/protocol/v2/account.rs b/codex-rs/app-server-protocol/src/protocol/v2/account.rs
index efb4a26f6..796c93d55 100644
--- a/codex-rs/app-server-protocol/src/protocol/v2/account.rs
+++ b/codex-rs/app-server-protocol/src/protocol/v2/account.rs
@@ -224,7 +224,7 @@ pub struct GetAccountParams {
     /// In managed auth mode this triggers the normal refresh-token flow. In
     /// external auth mode this flag is ignored. Clients should refresh tokens
     /// themselves and call `account/login/start` with `chatgptAuthTokens`.
-    #[serde(default)]
+    #[serde(default, skip_serializing_if = "std::ops::Not::not")]
     pub refresh_token: bool,
 }
 
diff --git a/codex-rs/app-server-protocol/src/protocol/v2/config.rs b/codex-rs/app-server-protocol/src/protocol/v2/config.rs
index 16f9bf154..c30106b1d 100644
--- a/codex-rs/app-server-protocol/src/protocol/v2/config.rs
+++ b/codex-rs/app-server-protocol/src/protocol/v2/config.rs
@@ -357,7 +357,7 @@ pub enum ConfigWriteErrorCode {
 #[serde(rename_all = "camelCase")]
 #[ts(export_to = "v2/")]
 pub struct ConfigReadParams {
-    #[serde(default)]
+    #[serde(default, skip_serializing_if = "std::ops::Not::not")]
     pub include_layers: bool,
     /// Optional working directory to resolve project config layers. If specified,
     /// return the effective config as seen from that directory (i.e., including any
diff --git a/codex-rs/app-server-protocol/src/protocol/v2/feedback.rs b/codex-rs/app-server-protocol/src/protocol/v2/feedback.rs
index aaf966a4b..fdddb3aaa 100644
--- a/codex-rs/app-server-protocol/src/protocol/v2/feedback.rs
+++ b/codex-rs/app-server-protocol/src/protocol/v2/feedback.rs
@@ -14,6 +14,7 @@ pub struct FeedbackUploadParams {
     pub reason: Option<String>,
     #[ts(optional = nullable)]
     pub thread_id: Option<String>,
+    #[serde(default, skip_serializing_if = "std::ops::Not::not")]
     pub include_logs: bool,
     #[ts(optional = nullable)]
     pub extra_log_files: Option<Vec<PathBuf>>,
diff --git a/codex-rs/app-server-protocol/src/protocol/v2/thread.rs b/codex-rs/app-server-protocol/src/protocol/v2/thread.rs
index 01d8bc2a6..4971d5f4b 100644
--- a/codex-rs/app-server-protocol/src/protocol/v2/thread.rs
+++ b/codex-rs/app-server-protocol/src/protocol/v2/thread.rs
@@ -162,13 +162,13 @@ pub struct ThreadStartParams {
     /// If true, opt into emitting raw Responses API items on the event stream.
     /// This is for internal use only (e.g. Codex Cloud).
     #[experimental("thread/start.experimentalRawEvents")]
-    #[serde(default)]
+    #[serde(default, skip_serializing_if = "std::ops::Not::not")]
     pub experimental_raw_events: bool,
     /// Deprecated and ignored by app-server. Kept only so older clients can
     /// continue sending the field while rollout persistence always uses the
     /// limited history policy.
     #[experimental("thread/start.persistFullHistory")]
-    #[serde(default)]
+    #[serde(default, skip_serializing_if = "std::ops::Not::not")]
     pub persist_extended_history: bool,
 }
 
@@ -401,7 +401,7 @@ pub struct ThreadResumeParams {
     /// continue sending the field while rollout persistence always uses the
     /// limited history policy.
     #[experimental("thread/resume.persistFullHistory")]
-    #[serde(default)]
+    #[serde(default, skip_serializing_if = "std::ops::Not::not")]
     pub persist_extended_history: bool,
 }
 
@@ -518,7 +518,7 @@ pub struct ThreadForkParams {
     /// continue sending the field while rollout persistence always uses the
     /// limited history policy.
     #[experimental("thread/fork.persistFullHistory")]
-    #[serde(default)]
+    #[serde(default, skip_serializing_if = "std::ops::Not::not")]
     pub persist_extended_history: bool,
 }
 
@@ -1132,7 +1132,7 @@ pub enum ThreadActiveFlag {
 pub struct ThreadReadParams {
     pub thread_id: String,
     /// When true, include turns and their items from rollout history.
-    #[serde(default)]
+    #[serde(default, skip_serializing_if = "std::ops::Not::not")]
     pub include_turns: bool,
 }