diff --git a/codex-rs/app-server-protocol/schema/json/ClientRequest.json b/codex-rs/app-server-protocol/schema/json/ClientRequest.json
index 6d9be4ec02..48d36e46ed 100644
--- a/codex-rs/app-server-protocol/schema/json/ClientRequest.json
+++ b/codex-rs/app-server-protocol/schema/json/ClientRequest.json
@@ -3798,6 +3798,8 @@
       "enum": [
         "user",
         "subagent",
+        "system",
+        "automation",
         "memory_consolidation"
       ],
       "type": "string"
diff --git a/codex-rs/app-server-protocol/schema/json/ServerNotification.json b/codex-rs/app-server-protocol/schema/json/ServerNotification.json
index dac3a4fdff..36e59821a8 100644
--- a/codex-rs/app-server-protocol/schema/json/ServerNotification.json
+++ b/codex-rs/app-server-protocol/schema/json/ServerNotification.json
@@ -4578,6 +4578,8 @@
       "enum": [
         "user",
         "subagent",
+        "system",
+        "automation",
         "memory_consolidation"
       ],
       "type": "string"
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 1873ed317e..e3b288b7fc 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
@@ -18020,6 +18020,8 @@
         "enum": [
           "user",
           "subagent",
+          "system",
+          "automation",
           "memory_consolidation"
         ],
         "type": "string"
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 38c74b1859..ca13b1c3bd 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
@@ -15837,6 +15837,8 @@
       "enum": [
         "user",
         "subagent",
+        "system",
+        "automation",
         "memory_consolidation"
       ],
       "type": "string"
diff --git a/codex-rs/app-server-protocol/schema/json/v2/ThreadForkParams.json b/codex-rs/app-server-protocol/schema/json/v2/ThreadForkParams.json
index d9a543e939..cecf715c65 100644
--- a/codex-rs/app-server-protocol/schema/json/v2/ThreadForkParams.json
+++ b/codex-rs/app-server-protocol/schema/json/v2/ThreadForkParams.json
@@ -76,6 +76,8 @@
       "enum": [
         "user",
         "subagent",
+        "system",
+        "automation",
         "memory_consolidation"
       ],
       "type": "string"
diff --git a/codex-rs/app-server-protocol/schema/json/v2/ThreadForkResponse.json b/codex-rs/app-server-protocol/schema/json/v2/ThreadForkResponse.json
index 0dbb7ef004..06f6fabd69 100644
--- a/codex-rs/app-server-protocol/schema/json/v2/ThreadForkResponse.json
+++ b/codex-rs/app-server-protocol/schema/json/v2/ThreadForkResponse.json
@@ -1793,6 +1793,8 @@
       "enum": [
         "user",
         "subagent",
+        "system",
+        "automation",
         "memory_consolidation"
       ],
       "type": "string"
diff --git a/codex-rs/app-server-protocol/schema/json/v2/ThreadListResponse.json b/codex-rs/app-server-protocol/schema/json/v2/ThreadListResponse.json
index 903553afaa..0e2acddaf8 100644
--- a/codex-rs/app-server-protocol/schema/json/v2/ThreadListResponse.json
+++ b/codex-rs/app-server-protocol/schema/json/v2/ThreadListResponse.json
@@ -1608,6 +1608,8 @@
       "enum": [
         "user",
         "subagent",
+        "system",
+        "automation",
         "memory_consolidation"
       ],
       "type": "string"
diff --git a/codex-rs/app-server-protocol/schema/json/v2/ThreadMetadataUpdateResponse.json b/codex-rs/app-server-protocol/schema/json/v2/ThreadMetadataUpdateResponse.json
index 93f44759bf..6bce7df4b4 100644
--- a/codex-rs/app-server-protocol/schema/json/v2/ThreadMetadataUpdateResponse.json
+++ b/codex-rs/app-server-protocol/schema/json/v2/ThreadMetadataUpdateResponse.json
@@ -1608,6 +1608,8 @@
       "enum": [
         "user",
         "subagent",
+        "system",
+        "automation",
         "memory_consolidation"
       ],
       "type": "string"
diff --git a/codex-rs/app-server-protocol/schema/json/v2/ThreadReadResponse.json b/codex-rs/app-server-protocol/schema/json/v2/ThreadReadResponse.json
index a78d1837c8..ebd622723d 100644
--- a/codex-rs/app-server-protocol/schema/json/v2/ThreadReadResponse.json
+++ b/codex-rs/app-server-protocol/schema/json/v2/ThreadReadResponse.json
@@ -1608,6 +1608,8 @@
       "enum": [
         "user",
         "subagent",
+        "system",
+        "automation",
         "memory_consolidation"
       ],
       "type": "string"
diff --git a/codex-rs/app-server-protocol/schema/json/v2/ThreadResumeResponse.json b/codex-rs/app-server-protocol/schema/json/v2/ThreadResumeResponse.json
index 288c3e6c8e..1de606571c 100644
--- a/codex-rs/app-server-protocol/schema/json/v2/ThreadResumeResponse.json
+++ b/codex-rs/app-server-protocol/schema/json/v2/ThreadResumeResponse.json
@@ -1793,6 +1793,8 @@
       "enum": [
         "user",
         "subagent",
+        "system",
+        "automation",
         "memory_consolidation"
       ],
       "type": "string"
diff --git a/codex-rs/app-server-protocol/schema/json/v2/ThreadRollbackResponse.json b/codex-rs/app-server-protocol/schema/json/v2/ThreadRollbackResponse.json
index 2ef7959a8b..1a10e68a06 100644
--- a/codex-rs/app-server-protocol/schema/json/v2/ThreadRollbackResponse.json
+++ b/codex-rs/app-server-protocol/schema/json/v2/ThreadRollbackResponse.json
@@ -1608,6 +1608,8 @@
       "enum": [
         "user",
         "subagent",
+        "system",
+        "automation",
         "memory_consolidation"
       ],
       "type": "string"
diff --git a/codex-rs/app-server-protocol/schema/json/v2/ThreadStartParams.json b/codex-rs/app-server-protocol/schema/json/v2/ThreadStartParams.json
index 99b25490ab..876c9290c7 100644
--- a/codex-rs/app-server-protocol/schema/json/v2/ThreadStartParams.json
+++ b/codex-rs/app-server-protocol/schema/json/v2/ThreadStartParams.json
@@ -110,6 +110,8 @@
       "enum": [
         "user",
         "subagent",
+        "system",
+        "automation",
         "memory_consolidation"
       ],
       "type": "string"
diff --git a/codex-rs/app-server-protocol/schema/json/v2/ThreadStartResponse.json b/codex-rs/app-server-protocol/schema/json/v2/ThreadStartResponse.json
index 1a182e5d69..394ef89b9b 100644
--- a/codex-rs/app-server-protocol/schema/json/v2/ThreadStartResponse.json
+++ b/codex-rs/app-server-protocol/schema/json/v2/ThreadStartResponse.json
@@ -1793,6 +1793,8 @@
       "enum": [
         "user",
         "subagent",
+        "system",
+        "automation",
         "memory_consolidation"
       ],
       "type": "string"
diff --git a/codex-rs/app-server-protocol/schema/json/v2/ThreadStartedNotification.json b/codex-rs/app-server-protocol/schema/json/v2/ThreadStartedNotification.json
index 66ed134c83..0e54b31b72 100644
--- a/codex-rs/app-server-protocol/schema/json/v2/ThreadStartedNotification.json
+++ b/codex-rs/app-server-protocol/schema/json/v2/ThreadStartedNotification.json
@@ -1608,6 +1608,8 @@
       "enum": [
         "user",
         "subagent",
+        "system",
+        "automation",
         "memory_consolidation"
       ],
       "type": "string"
diff --git a/codex-rs/app-server-protocol/schema/json/v2/ThreadUnarchiveResponse.json b/codex-rs/app-server-protocol/schema/json/v2/ThreadUnarchiveResponse.json
index d331fa9bf7..8c22c5a6d8 100644
--- a/codex-rs/app-server-protocol/schema/json/v2/ThreadUnarchiveResponse.json
+++ b/codex-rs/app-server-protocol/schema/json/v2/ThreadUnarchiveResponse.json
@@ -1608,6 +1608,8 @@
       "enum": [
         "user",
         "subagent",
+        "system",
+        "automation",
         "memory_consolidation"
       ],
       "type": "string"
diff --git a/codex-rs/app-server-protocol/schema/typescript/v2/ThreadSource.ts b/codex-rs/app-server-protocol/schema/typescript/v2/ThreadSource.ts
index 8f55524801..39cd3c3104 100644
--- a/codex-rs/app-server-protocol/schema/typescript/v2/ThreadSource.ts
+++ b/codex-rs/app-server-protocol/schema/typescript/v2/ThreadSource.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 ThreadSource = "user" | "subagent" | "memory_consolidation";
+export type ThreadSource = "user" | "subagent" | "system" | "automation" | "memory_consolidation";
diff --git a/codex-rs/app-server-protocol/src/protocol/v2/thread_data.rs b/codex-rs/app-server-protocol/src/protocol/v2/thread_data.rs
index 35b6183871..a8becae973 100644
--- a/codex-rs/app-server-protocol/src/protocol/v2/thread_data.rs
+++ b/codex-rs/app-server-protocol/src/protocol/v2/thread_data.rs
@@ -67,6 +67,8 @@ impl From<SessionSource> for CoreSessionSource {
 pub enum ThreadSource {
     User,
     Subagent,
+    System,
+    Automation,
     MemoryConsolidation,
 }
 
@@ -75,6 +77,8 @@ impl From<CoreThreadSource> for ThreadSource {
         match value {
             CoreThreadSource::User => ThreadSource::User,
             CoreThreadSource::Subagent => ThreadSource::Subagent,
+            CoreThreadSource::System => ThreadSource::System,
+            CoreThreadSource::Automation => ThreadSource::Automation,
             CoreThreadSource::MemoryConsolidation => ThreadSource::MemoryConsolidation,
         }
     }
@@ -85,6 +89,8 @@ impl From<ThreadSource> for CoreThreadSource {
         match value {
             ThreadSource::User => CoreThreadSource::User,
             ThreadSource::Subagent => CoreThreadSource::Subagent,
+            ThreadSource::System => CoreThreadSource::System,
+            ThreadSource::Automation => CoreThreadSource::Automation,
             ThreadSource::MemoryConsolidation => CoreThreadSource::MemoryConsolidation,
         }
     }
diff --git a/codex-rs/protocol/src/protocol.rs b/codex-rs/protocol/src/protocol.rs
index c9e2e8bb28..1a146eae28 100644
--- a/codex-rs/protocol/src/protocol.rs
+++ b/codex-rs/protocol/src/protocol.rs
@@ -2501,6 +2501,8 @@ pub enum SessionSource {
 pub enum ThreadSource {
     User,
     Subagent,
+    System,
+    Automation,
     MemoryConsolidation,
 }
 
@@ -2509,6 +2511,8 @@ impl ThreadSource {
         match self {
             ThreadSource::User => "user",
             ThreadSource::Subagent => "subagent",
+            ThreadSource::System => "system",
+            ThreadSource::Automation => "automation",
             ThreadSource::MemoryConsolidation => "memory_consolidation",
         }
     }
@@ -2527,6 +2531,8 @@ impl FromStr for ThreadSource {
         match value {
             "user" => Ok(ThreadSource::User),
             "subagent" => Ok(ThreadSource::Subagent),
+            "system" => Ok(ThreadSource::System),
+            "automation" => Ok(ThreadSource::Automation),
             "memory_consolidation" => Ok(ThreadSource::MemoryConsolidation),
             other => Err(format!("unknown thread source: {other}")),
         }