Delete unused ResponseItem::Message.end_turn (#19605)

This field is unused. Delete it.

codex-rs/app-server-protocol/schema/json/ClientRequest.json

@@ -2292,12 +2292,6 @@
               },
               "type": "array"
             },
-            "end_turn": {
-              "type": [
-                "boolean",
-                "null"
-              ]
-            },
             "id": {
               "type": [
                 "string",

codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.schemas.json

@@ -12739,12 +12739,6 @@
                 },
                 "type": "array"
               },
-              "end_turn": {
-                "type": [
-                  "boolean",
-                  "null"
-                ]
-              },
               "id": {
                 "type": [
                   "string",

codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.v2.schemas.json

@@ -9413,12 +9413,6 @@
               },
               "type": "array"
             },
-            "end_turn": {
-              "type": [
-                "boolean",
-                "null"
-              ]
-            },
             "id": {
               "type": [
                 "string",

codex-rs/app-server-protocol/schema/json/v2/RawResponseItemCompletedNotification.json

@@ -345,12 +345,6 @@
               },
               "type": "array"
             },
-            "end_turn": {
-              "type": [
-                "boolean",
-                "null"
-              ]
-            },
             "id": {
               "type": [
                 "string",

codex-rs/app-server-protocol/schema/json/v2/ThreadResumeParams.json

@@ -756,12 +756,6 @@
               },
               "type": "array"
             },
-            "end_turn": {
-              "type": [
-                "boolean",
-                "null"
-              ]
-            },
             "id": {
               "type": [
                 "string",

codex-rs/app-server-protocol/schema/typescript/ResponseItem.ts

@@ -11,7 +11,7 @@ import type { ReasoningItemContent } from "./ReasoningItemContent";
 import type { ReasoningItemReasoningSummary } from "./ReasoningItemReasoningSummary";
 import type { WebSearchAction } from "./WebSearchAction";
 
-export type ResponseItem = { "type": "message", role: string, content: Array<ContentItem>, end_turn?: boolean, phase?: MessagePhase, } | { "type": "reasoning", summary: Array<ReasoningItemReasoningSummary>, content?: Array<ReasoningItemContent>, encrypted_content: string | null, } | { "type": "local_shell_call",
+export type ResponseItem = { "type": "message", role: string, content: Array<ContentItem>, phase?: MessagePhase, } | { "type": "reasoning", summary: Array<ReasoningItemReasoningSummary>, content?: Array<ReasoningItemContent>, encrypted_content: string | null, } | { "type": "local_shell_call",
 /**
  * Set when using the Responses API.
  */

codex-rs/app-server-protocol/src/protocol/thread_history.rs

@@ -3096,7 +3096,6 @@ mod tests {
                 content: vec![codex_protocol::models::ContentItem::InputText {
                     text: "plain text".into(),
                 }],
-                end_turn: None,
                 phase: None,
             }),
             RolloutItem::EventMsg(EventMsg::TurnComplete(TurnCompleteEvent {

codex-rs/app-server/tests/suite/v2/compaction.rs

@@ -134,7 +134,6 @@ async fn auto_compaction_remote_emits_started_and_completed_items() -> Result<()
             content: vec![ContentItem::OutputText {
                 text: "REMOTE_COMPACT_SUMMARY".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::Compaction {

codex-rs/app-server/tests/suite/v2/thread_inject_items.rs

@@ -59,7 +59,6 @@ async fn thread_inject_items_adds_raw_response_items_to_thread_history() -> Resu
         content: vec![ContentItem::OutputText {
             text: injected_text.to_string(),
         }],
-        end_turn: None,
         phase: None,
     };
 
@@ -195,7 +194,6 @@ async fn thread_inject_items_adds_raw_response_items_after_a_turn() -> Result<()
         content: vec![ContentItem::OutputText {
             text: "Injected after first turn".to_string(),
         }],
-        end_turn: None,
         phase: None,
     };
     let injected_value = serde_json::to_value(&injected_item)?;

codex-rs/app-server/tests/suite/v2/thread_resume.rs

@@ -1660,7 +1660,6 @@ async fn thread_resume_rejects_history_when_thread_is_running() -> Result<()> {
                 content: vec![ContentItem::InputText {
                     text: "history override".to_string(),
                 }],
-                end_turn: None,
                 phase: None,
             }]),
             ..Default::default()
@@ -2616,7 +2615,6 @@ async fn thread_resume_supports_history_and_overrides() -> Result<()> {
         content: vec![ContentItem::InputText {
             text: history_text.to_string(),
         }],
-        end_turn: None,
         phase: None,
     }];
 

codex-rs/codex-api/tests/clients.rs

@@ -423,7 +423,6 @@ async fn azure_default_store_attaches_ids_and_headers() -> Result<()> {
             id: Some("msg_1".into()),
             role: "user".into(),
             content: vec![ContentItem::InputText { text: "hi".into() }],
-            end_turn: None,
             phase: None,
         }],
         tools: Vec::new(),

codex-rs/core/src/agent/control_tests.rs

@@ -66,7 +66,6 @@ fn assistant_message(text: &str, phase: Option<MessagePhase>) -> ResponseItem {
         content: vec![ContentItem::OutputText {
             text: text.to_string(),
         }],
-        end_turn: None,
         phase,
     }
 }
@@ -519,7 +518,6 @@ async fn append_message_records_assistant_message() {
                 content: vec![ContentItem::InputText {
                     text: message.to_string(),
                 }],
-                end_turn: None,
                 phase: None,
             },
         )
@@ -678,7 +676,6 @@ async fn spawn_agent_can_fork_parent_thread_history_with_sanitized_items() {
             content: vec![ContentItem::InputText {
                 text: "parent seed context".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         assistant_message("parent final answer", Some(MessagePhase::FinalAnswer)),

codex-rs/core/src/arc_monitor_tests.rs

@@ -65,7 +65,6 @@ async fn build_arc_monitor_request_includes_relevant_history_and_null_policies()
                 content: vec![ContentItem::InputText {
                     text: "first request".to_string(),
                 }],
-                end_turn: None,
                 phase: None,
             }],
             &turn_context,
@@ -94,7 +93,6 @@ async fn build_arc_monitor_request_includes_relevant_history_and_null_policies()
                 content: vec![ContentItem::OutputText {
                     text: "commentary".to_string(),
                 }],
-                end_turn: None,
                 phase: Some(MessagePhase::Commentary),
             }],
             &turn_context,
@@ -108,7 +106,6 @@ async fn build_arc_monitor_request_includes_relevant_history_and_null_policies()
                 content: vec![ContentItem::OutputText {
                     text: "final response".to_string(),
                 }],
-                end_turn: None,
                 phase: Some(MessagePhase::FinalAnswer),
             }],
             &turn_context,
@@ -122,7 +119,6 @@ async fn build_arc_monitor_request_includes_relevant_history_and_null_policies()
                 content: vec![ContentItem::InputText {
                     text: "latest request".to_string(),
                 }],
-                end_turn: None,
                 phase: None,
             }],
             &turn_context,
@@ -277,7 +273,6 @@ async fn monitor_action_posts_expected_arc_request() {
                 content: vec![ContentItem::InputText {
                     text: "please run the tool".to_string(),
                 }],
-                end_turn: None,
                 phase: None,
             }],
             &turn_context,
@@ -358,7 +353,6 @@ async fn monitor_action_uses_env_url_and_token_overrides() {
                 content: vec![ContentItem::InputText {
                     text: "please run the tool".to_string(),
                 }],
-                end_turn: None,
                 phase: None,
             }],
             &turn_context,
@@ -428,7 +422,6 @@ async fn monitor_action_rejects_legacy_response_fields() {
                 content: vec![ContentItem::InputText {
                     text: "please run the tool".to_string(),
                 }],
-                end_turn: None,
                 phase: None,
             }],
             &turn_context,

codex-rs/core/src/codex_thread.rs

@@ -278,7 +278,6 @@ impl CodexThread {
             id: None,
             role: "user".to_string(),
             content: vec![ContentItem::InputText { text: message }],
-            end_turn: None,
             phase: None,
         };
         let pending_item = match pending_message_input_item(&message) {

codex-rs/core/src/compact.rs

@@ -509,7 +509,6 @@ fn build_compacted_history_with_limit(
             content: vec![ContentItem::InputText {
                 text: message.clone(),
             }],
-            end_turn: None,
             phase: None,
         });
     }
@@ -524,7 +523,6 @@ fn build_compacted_history_with_limit(
         id: None,
         role: "user".to_string(),
         content: vec![ContentItem::InputText { text: summary_text }],
-        end_turn: None,
         phase: None,
     });
 

codex-rs/core/src/compact_tests.rs

@@ -63,7 +63,6 @@ fn collect_user_messages_extracts_user_text_only() {
             content: vec![ContentItem::OutputText {
                 text: "ignored".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::Message {
@@ -72,7 +71,6 @@ fn collect_user_messages_extracts_user_text_only() {
             content: vec![ContentItem::InputText {
                 text: "first".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::Other,
@@ -97,7 +95,6 @@ do things
 </INSTRUCTIONS>"#
                     .to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::Message {
@@ -106,7 +103,6 @@ do things
             content: vec![ContentItem::InputText {
                 text: "<ENVIRONMENT_CONTEXT>cwd=/tmp</ENVIRONMENT_CONTEXT>".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::Message {
@@ -115,7 +111,6 @@ do things
             content: vec![ContentItem::InputText {
                 text: "real user message".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
     ];
@@ -223,7 +218,6 @@ async fn process_compacted_history_replaces_developer_messages() {
             content: vec![ContentItem::InputText {
                 text: "stale permissions".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::Message {
@@ -232,7 +226,6 @@ async fn process_compacted_history_replaces_developer_messages() {
             content: vec![ContentItem::InputText {
                 text: "summary".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::Message {
@@ -241,7 +234,6 @@ async fn process_compacted_history_replaces_developer_messages() {
             content: vec![ContentItem::InputText {
                 text: "stale personality".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
     ];
@@ -256,7 +248,6 @@ async fn process_compacted_history_replaces_developer_messages() {
         content: vec![ContentItem::InputText {
             text: "summary".to_string(),
         }],
-        end_turn: None,
         phase: None,
     });
     assert_eq!(refreshed, expected);
@@ -270,7 +261,6 @@ async fn process_compacted_history_reinjects_full_initial_context() {
         content: vec![ContentItem::InputText {
             text: "summary".to_string(),
         }],
-        end_turn: None,
         phase: None,
     }];
     let (refreshed, mut expected) = process_compacted_history_with_test_session(
@@ -284,7 +274,6 @@ async fn process_compacted_history_reinjects_full_initial_context() {
         content: vec![ContentItem::InputText {
             text: "summary".to_string(),
         }],
-        end_turn: None,
         phase: None,
     });
     assert_eq!(refreshed, expected);
@@ -304,7 +293,6 @@ keep me updated
 </INSTRUCTIONS>"#
                     .to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::Message {
@@ -317,7 +305,6 @@ keep me updated
 </environment_context>"#
                     .to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::Message {
@@ -330,7 +317,6 @@ keep me updated
 </turn_aborted>"#
                     .to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::Message {
@@ -339,7 +325,6 @@ keep me updated
             content: vec![ContentItem::InputText {
                 text: "summary".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::Message {
@@ -348,7 +333,6 @@ keep me updated
             content: vec![ContentItem::InputText {
                 text: "stale developer instructions".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
     ];
@@ -363,7 +347,6 @@ keep me updated
         content: vec![ContentItem::InputText {
             text: "summary".to_string(),
         }],
-        end_turn: None,
         phase: None,
     });
     assert_eq!(refreshed, expected);
@@ -378,7 +361,6 @@ async fn process_compacted_history_inserts_context_before_last_real_user_message
             content: vec![ContentItem::InputText {
                 text: "older user".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::Message {
@@ -387,7 +369,6 @@ async fn process_compacted_history_inserts_context_before_last_real_user_message
             content: vec![ContentItem::InputText {
                 text: format!("{SUMMARY_PREFIX}\nsummary text"),
             }],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::Message {
@@ -396,7 +377,6 @@ async fn process_compacted_history_inserts_context_before_last_real_user_message
             content: vec![ContentItem::InputText {
                 text: "latest user".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
     ];
@@ -413,7 +393,6 @@ async fn process_compacted_history_inserts_context_before_last_real_user_message
             content: vec![ContentItem::InputText {
                 text: "older user".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::Message {
@@ -422,7 +401,6 @@ async fn process_compacted_history_inserts_context_before_last_real_user_message
             content: vec![ContentItem::InputText {
                 text: format!("{SUMMARY_PREFIX}\nsummary text"),
             }],
-            end_turn: None,
             phase: None,
         },
     ];
@@ -433,7 +411,6 @@ async fn process_compacted_history_inserts_context_before_last_real_user_message
         content: vec![ContentItem::InputText {
             text: "latest user".to_string(),
         }],
-        end_turn: None,
         phase: None,
     });
     assert_eq!(refreshed, expected);
@@ -447,7 +424,6 @@ async fn process_compacted_history_reinjects_model_switch_message() {
         content: vec![ContentItem::InputText {
             text: "summary".to_string(),
         }],
-        end_turn: None,
         phase: None,
     }];
     let previous_turn_settings = PreviousTurnSettings {
@@ -477,7 +453,6 @@ async fn process_compacted_history_reinjects_model_switch_message() {
         content: vec![ContentItem::InputText {
             text: "summary".to_string(),
         }],
-        end_turn: None,
         phase: None,
     });
     assert_eq!(refreshed, expected);
@@ -492,7 +467,6 @@ fn insert_initial_context_before_last_real_user_or_summary_keeps_summary_last()
             content: vec![ContentItem::InputText {
                 text: "older user".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::Message {
@@ -501,7 +475,6 @@ fn insert_initial_context_before_last_real_user_or_summary_keeps_summary_last()
             content: vec![ContentItem::InputText {
                 text: "latest user".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::Message {
@@ -510,7 +483,6 @@ fn insert_initial_context_before_last_real_user_or_summary_keeps_summary_last()
             content: vec![ContentItem::InputText {
                 text: format!("{SUMMARY_PREFIX}\nsummary text"),
             }],
-            end_turn: None,
             phase: None,
         },
     ];
@@ -520,7 +492,6 @@ fn insert_initial_context_before_last_real_user_or_summary_keeps_summary_last()
         content: vec![ContentItem::InputText {
             text: "fresh permissions".to_string(),
         }],
-        end_turn: None,
         phase: None,
     }];
 
@@ -533,7 +504,6 @@ fn insert_initial_context_before_last_real_user_or_summary_keeps_summary_last()
             content: vec![ContentItem::InputText {
                 text: "older user".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::Message {
@@ -542,7 +512,6 @@ fn insert_initial_context_before_last_real_user_or_summary_keeps_summary_last()
             content: vec![ContentItem::InputText {
                 text: "fresh permissions".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::Message {
@@ -551,7 +520,6 @@ fn insert_initial_context_before_last_real_user_or_summary_keeps_summary_last()
             content: vec![ContentItem::InputText {
                 text: "latest user".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::Message {
@@ -560,7 +528,6 @@ fn insert_initial_context_before_last_real_user_or_summary_keeps_summary_last()
             content: vec![ContentItem::InputText {
                 text: format!("{SUMMARY_PREFIX}\nsummary text"),
             }],
-            end_turn: None,
             phase: None,
         },
     ];
@@ -578,7 +545,6 @@ fn insert_initial_context_before_last_real_user_or_summary_keeps_compaction_last
         content: vec![ContentItem::InputText {
             text: "fresh permissions".to_string(),
         }],
-        end_turn: None,
         phase: None,
     }];
 
@@ -591,7 +557,6 @@ fn insert_initial_context_before_last_real_user_or_summary_keeps_compaction_last
             content: vec![ContentItem::InputText {
                 text: "fresh permissions".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::Compaction {

codex-rs/core/src/context/fragment.rs

@@ -81,7 +81,6 @@ pub trait ContextualUserFragment {
             content: vec![ContentItem::InputText {
                 text: self.render(),
             }],
-            end_turn: None,
             phase: None,
         }
     }

codex-rs/core/src/context_manager/history_tests.rs

@@ -41,7 +41,6 @@ fn assistant_msg(text: &str) -> ResponseItem {
         content: vec![ContentItem::OutputText {
             text: text.to_string(),
         }],
-        end_turn: None,
         phase: None,
     }
 }
@@ -60,7 +59,6 @@ fn inter_agent_assistant_msg(text: &str) -> ResponseItem {
         content: vec![ContentItem::OutputText {
             text: serde_json::to_string(&communication).unwrap(),
         }],
-        end_turn: None,
         phase: None,
     }
 }
@@ -80,7 +78,6 @@ fn user_msg(text: &str) -> ResponseItem {
         content: vec![ContentItem::OutputText {
             text: text.to_string(),
         }],
-        end_turn: None,
         phase: None,
     }
 }
@@ -92,7 +89,6 @@ fn user_input_text_msg(text: &str) -> ResponseItem {
         content: vec![ContentItem::InputText {
             text: text.to_string(),
         }],
-        end_turn: None,
         phase: None,
     }
 }
@@ -104,7 +100,6 @@ fn developer_msg(text: &str) -> ResponseItem {
         content: vec![ContentItem::InputText {
             text: text.to_string(),
         }],
-        end_turn: None,
         phase: None,
     }
 }
@@ -119,7 +114,6 @@ fn developer_msg_with_fragments(texts: &[&str]) -> ResponseItem {
                 text: (*text).to_string(),
             })
             .collect(),
-        end_turn: None,
         phase: None,
     }
 }
@@ -200,7 +194,6 @@ fn filters_non_api_messages() {
         content: vec![ContentItem::OutputText {
             text: "ignored".to_string(),
         }],
-        end_turn: None,
         phase: None,
     };
     let reasoning = reasoning_msg("thinking...");
@@ -231,7 +224,6 @@ fn filters_non_api_messages() {
                 content: vec![ContentItem::OutputText {
                     text: "hi".to_string()
                 }],
-                end_turn: None,
                 phase: None,
             },
             ResponseItem::Message {
@@ -240,7 +232,6 @@ fn filters_non_api_messages() {
                 content: vec![ContentItem::OutputText {
                     text: "hello".to_string()
                 }],
-                end_turn: None,
                 phase: None,
             }
         ]
@@ -390,7 +381,6 @@ fn for_prompt_strips_images_when_model_does_not_support_images() {
                     text: "caption".to_string(),
                 },
             ],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::FunctionCall {
@@ -453,7 +443,6 @@ fn for_prompt_strips_images_when_model_does_not_support_images() {
                     text: "caption".to_string(),
                 },
             ],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::FunctionCall {
@@ -512,7 +501,6 @@ fn for_prompt_strips_images_when_model_does_not_support_images() {
                 detail: Some(DEFAULT_IMAGE_DETAIL),
             },
         ],
-        end_turn: None,
         phase: None,
     }]);
     let preserved = with_images.for_prompt(&modalities);
@@ -540,7 +528,6 @@ fn for_prompt_preserves_image_generation_calls_when_images_are_supported() {
             content: vec![ContentItem::InputText {
                 text: "hi".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
     ]);
@@ -560,7 +547,6 @@ fn for_prompt_preserves_image_generation_calls_when_images_are_supported() {
                 content: vec![ContentItem::InputText {
                     text: "hi".to_string(),
                 }],
-                end_turn: None,
                 phase: None,
             }
         ]
@@ -576,7 +562,6 @@ fn for_prompt_clears_image_generation_result_when_images_are_unsupported() {
             content: vec![ContentItem::InputText {
                 text: "generate a lobster".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::ImageGenerationCall {
@@ -596,7 +581,6 @@ fn for_prompt_clears_image_generation_result_when_images_are_unsupported() {
                 content: vec![ContentItem::InputText {
                     text: "generate a lobster".to_string(),
                 }],
-                end_turn: None,
                 phase: None,
             },
             ResponseItem::ImageGenerationCall {
@@ -758,7 +742,6 @@ fn replace_last_turn_images_does_not_touch_user_images() {
             image_url: "data:image/png;base64,AAA".to_string(),
             detail: Some(DEFAULT_IMAGE_DETAIL),
         }],
-        end_turn: None,
         phase: None,
     }];
     let mut history = create_history_with_items(items.clone());
@@ -1690,7 +1673,6 @@ fn image_data_url_payload_does_not_dominate_message_estimate() {
                 detail: Some(DEFAULT_IMAGE_DETAIL),
             },
         ],
-        end_turn: None,
         phase: None,
     };
     let text_only_item = ResponseItem::Message {
@@ -1699,7 +1681,6 @@ fn image_data_url_payload_does_not_dominate_message_estimate() {
         content: vec![ContentItem::InputText {
             text: "Here is the screenshot".to_string(),
         }],
-        end_turn: None,
         phase: None,
     };
 
@@ -1773,7 +1754,6 @@ fn non_base64_image_urls_are_unchanged() {
             image_url: "https://example.com/foo.png".to_string(),
             detail: Some(DEFAULT_IMAGE_DETAIL),
         }],
-        end_turn: None,
         phase: None,
     };
     let function_output_item = ResponseItem::FunctionCallOutput {
@@ -1805,7 +1785,6 @@ fn data_url_without_base64_marker_is_unchanged() {
             image_url: "data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg'/>".to_string(),
             detail: Some(DEFAULT_IMAGE_DETAIL),
         }],
-        end_turn: None,
         phase: None,
     };
 
@@ -1846,7 +1825,6 @@ fn mixed_case_data_url_markers_are_adjusted() {
             image_url,
             detail: Some(DEFAULT_IMAGE_DETAIL),
         }],
-        end_turn: None,
         phase: None,
     };
 
@@ -1879,7 +1857,6 @@ fn multiple_inline_images_apply_multiple_fixed_costs() {
                 detail: Some(DEFAULT_IMAGE_DETAIL),
             },
         ],
-        end_turn: None,
         phase: None,
     };
 
@@ -1962,7 +1939,6 @@ fn text_only_items_unchanged() {
         content: vec![ContentItem::OutputText {
             text: "Hello world, this is a response.".to_string(),
         }],
-        end_turn: None,
         phase: None,
     };
 

codex-rs/core/src/context_manager/updates.rs

@@ -197,7 +197,6 @@ fn build_text_message(role: &str, text_sections: Vec<String>) -> Option<Response
         id: None,
         role: role.to_string(),
         content,
-        end_turn: None,
         phase: None,
     })
 }

codex-rs/core/src/event_mapping_tests.rs

@@ -34,7 +34,6 @@ fn parses_user_message_with_text_and_two_images() {
                 detail: Some(DEFAULT_IMAGE_DETAIL),
             },
         ],
-        end_turn: None,
         phase: None,
     };
 
@@ -78,7 +77,6 @@ fn skips_local_image_label_text() {
                 text: user_text.clone(),
             },
         ],
-        end_turn: None,
         phase: None,
     };
 
@@ -108,7 +106,6 @@ fn parses_assistant_message_input_text_for_backward_compatibility() {
             text: "author: /root\nrecipient: /root/worker\nother_recipients: []\nContent: continue"
                 .to_string(),
         }],
-        end_turn: None,
         phase: None,
     };
 
@@ -158,7 +155,6 @@ fn skips_unnamed_image_label_text() {
                 text: user_text.clone(),
             },
         ],
-        end_turn: None,
         phase: None,
     };
 
@@ -188,7 +184,6 @@ fn skips_user_instructions_and_env() {
                 content: vec![ContentItem::InputText {
                     text: "# AGENTS.md instructions for test_directory\n\n<INSTRUCTIONS>\ntest_text\n</INSTRUCTIONS>".to_string(),
                 }],
-                end_turn: None,
             phase: None,
             },
             ResponseItem::Message {
@@ -197,7 +192,6 @@ fn skips_user_instructions_and_env() {
                 content: vec![ContentItem::InputText {
                     text: "<environment_context>test_text</environment_context>".to_string(),
                 }],
-                end_turn: None,
             phase: None,
             },
             ResponseItem::Message {
@@ -206,7 +200,6 @@ fn skips_user_instructions_and_env() {
                 content: vec![ContentItem::InputText {
                     text: "# AGENTS.md instructions for test_directory\n\n<INSTRUCTIONS>\ntest_text\n</INSTRUCTIONS>".to_string(),
                 }],
-                end_turn: None,
             phase: None,
             },
             ResponseItem::Message {
@@ -216,7 +209,6 @@ fn skips_user_instructions_and_env() {
                     text: "<skill>\n<name>demo</name>\n<path>skills/demo/SKILL.md</path>\nbody\n</skill>"
                         .to_string(),
                 }],
-                end_turn: None,
             phase: None,
             },
             ResponseItem::Message {
@@ -225,7 +217,6 @@ fn skips_user_instructions_and_env() {
                 content: vec![ContentItem::InputText {
                     text: "<user_shell_command>echo 42</user_shell_command>".to_string(),
                 }],
-                end_turn: None,
             phase: None,
             },
             ResponseItem::Message {
@@ -241,7 +232,6 @@ fn skips_user_instructions_and_env() {
                                 .to_string(),
                     },
                 ],
-                end_turn: None,
                 phase: None,
             },
         ];
@@ -292,7 +282,6 @@ fn parses_hook_prompt_and_hides_other_contextual_fragments() {
                         .to_string(),
             },
         ],
-        end_turn: None,
         phase: None,
     };
 
@@ -321,7 +310,6 @@ fn parses_agent_message() {
         content: vec![ContentItem::OutputText {
             text: "Hello from Codex".to_string(),
         }],
-        end_turn: None,
         phase: None,
     };
 

codex-rs/core/src/guardian/tests.rs

@@ -176,7 +176,6 @@ async fn seed_guardian_parent_history(session: &Arc<Session>, turn: &Arc<TurnCon
                         text: "Please check the repo visibility and push the docs fix if needed."
                             .to_string(),
                     }],
-                    end_turn: None,
                     phase: None,
                 },
                 ResponseItem::FunctionCall {
@@ -199,7 +198,6 @@ async fn seed_guardian_parent_history(session: &Arc<Session>, turn: &Arc<TurnCon
                         text: "The repo is public; I now need approval to push the docs fix."
                             .to_string(),
                     }],
-                    end_turn: None,
                     phase: None,
                 },
             ],
@@ -343,7 +341,6 @@ async fn build_guardian_prompt_delta_mode_preserves_original_numbering() -> anyh
                     content: vec![ContentItem::InputText {
                         text: "Please also push the second docs fix.".to_string(),
                     }],
-                    end_turn: None,
                     phase: None,
                 },
                 ResponseItem::Message {
@@ -352,7 +349,6 @@ async fn build_guardian_prompt_delta_mode_preserves_original_numbering() -> anyh
                     content: vec![ContentItem::OutputText {
                         text: "I need approval for the second push.".to_string(),
                     }],
-                    end_turn: None,
                     phase: None,
                 },
             ],
@@ -476,7 +472,6 @@ async fn build_guardian_prompt_stale_delta_version_falls_back_to_full_prompt() -
                     content: vec![ContentItem::InputText {
                         text: "Compacted retained user request.".to_string(),
                     }],
-                    end_turn: None,
                     phase: None,
                 },
                 ResponseItem::Message {
@@ -485,7 +480,6 @@ async fn build_guardian_prompt_stale_delta_version_falls_back_to_full_prompt() -
                     content: vec![ContentItem::OutputText {
                         text: "Compacted summary of earlier guardian context.".to_string(),
                     }],
-                    end_turn: None,
                     phase: None,
                 },
             ],
@@ -501,7 +495,6 @@ async fn build_guardian_prompt_stale_delta_version_falls_back_to_full_prompt() -
                     content: vec![ContentItem::InputText {
                         text: "Please push after the compaction.".to_string(),
                     }],
-                    end_turn: None,
                     phase: None,
                 },
                 ResponseItem::Message {
@@ -510,7 +503,6 @@ async fn build_guardian_prompt_stale_delta_version_falls_back_to_full_prompt() -
                     content: vec![ContentItem::OutputText {
                         text: "I need approval for the post-compaction push.".to_string(),
                     }],
-                    end_turn: None,
                     phase: None,
                 },
             ],
@@ -559,7 +551,6 @@ fn collect_guardian_transcript_entries_skips_contextual_user_messages() {
             content: vec![ContentItem::InputText {
                 text: "<environment_context>\n<cwd>/tmp</cwd>\n</environment_context>".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::Message {
@@ -568,7 +559,6 @@ fn collect_guardian_transcript_entries_skips_contextual_user_messages() {
             content: vec![ContentItem::OutputText {
                 text: "hello".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
     ];
@@ -594,7 +584,6 @@ fn collect_guardian_transcript_entries_includes_recent_tool_calls_and_output() {
             content: vec![ContentItem::InputText {
                 text: "check the repo".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::FunctionCall {
@@ -616,7 +605,6 @@ fn collect_guardian_transcript_entries_includes_recent_tool_calls_and_output() {
             content: vec![ContentItem::OutputText {
                 text: "I need to push a fix".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
     ];
@@ -1357,7 +1345,6 @@ async fn guardian_reuses_prompt_cache_key_and_appends_prior_reviews() -> anyhow:
                     content: vec![ContentItem::InputText {
                         text: "Please push the second docs fix too.".to_string(),
                     }],
-                    end_turn: None,
                     phase: None,
                 },
                 ResponseItem::Message {
@@ -1366,7 +1353,6 @@ async fn guardian_reuses_prompt_cache_key_and_appends_prior_reviews() -> anyhow:
                     content: vec![ContentItem::OutputText {
                         text: "I need approval for the second docs fix.".to_string(),
                     }],
-                    end_turn: None,
                     phase: None,
                 },
             ],
@@ -1403,7 +1389,6 @@ async fn guardian_reuses_prompt_cache_key_and_appends_prior_reviews() -> anyhow:
                     content: vec![ContentItem::InputText {
                         text: "Please push the third docs fix too.".to_string(),
                     }],
-                    end_turn: None,
                     phase: None,
                 },
                 ResponseItem::Message {
@@ -1412,7 +1397,6 @@ async fn guardian_reuses_prompt_cache_key_and_appends_prior_reviews() -> anyhow:
                     content: vec![ContentItem::OutputText {
                         text: "I need approval for the third docs fix.".to_string(),
                     }],
-                    end_turn: None,
                     phase: None,
                 },
             ],
@@ -1790,7 +1774,6 @@ async fn guardian_parallel_reviews_fork_from_last_committed_trunk_history() -> a
                         content: vec![ContentItem::InputText {
                             text: "Please inspect pending changes before pushing.".to_string(),
                         }],
-                        end_turn: None,
                         phase: None,
                     },
                     ResponseItem::Message {
@@ -1799,7 +1782,6 @@ async fn guardian_parallel_reviews_fork_from_last_committed_trunk_history() -> a
                         content: vec![ContentItem::OutputText {
                             text: "I need approval to run git diff.".to_string(),
                         }],
-                        end_turn: None,
                         phase: None,
                     },
                 ],
@@ -1859,7 +1841,6 @@ async fn guardian_parallel_reviews_fork_from_last_committed_trunk_history() -> a
                         content: vec![ContentItem::InputText {
                             text: "Now inspect whether pushing is safe.".to_string(),
                         }],
-                        end_turn: None,
                         phase: None,
                     },
                     ResponseItem::Message {
@@ -1868,7 +1849,6 @@ async fn guardian_parallel_reviews_fork_from_last_committed_trunk_history() -> a
                         content: vec![ContentItem::OutputText {
                             text: "I need approval to push after the diff check.".to_string(),
                         }],
-                        end_turn: None,
                         phase: None,
                     },
                 ],

codex-rs/core/src/memories/phase1.rs

@@ -332,7 +332,6 @@ mod job {
                         &rollout_contents,
                     )?,
                 }],
-                end_turn: None,
                 phase: None,
             }],
             tools: Vec::new(),
@@ -491,7 +490,6 @@ mod job {
             id,
             role,
             content,
-            end_turn,
             phase,
         } = item
         else {
@@ -519,7 +517,6 @@ mod job {
             id: id.clone(),
             role: role.clone(),
             content,
-            end_turn: *end_turn,
             phase: phase.clone(),
         })
     }

codex-rs/core/src/memories/phase1_tests.rs

@@ -24,7 +24,6 @@ fn serializes_memory_rollout_with_agents_removed_but_environment_kept() {
                 text: "<environment_context>\n<cwd>/tmp</cwd>\n</environment_context>".to_string(),
             },
         ],
-        end_turn: None,
         phase: None,
     };
     let skill_message = ResponseItem::Message {
@@ -34,7 +33,6 @@ fn serializes_memory_rollout_with_agents_removed_but_environment_kept() {
             text: "<skill>\n<name>demo</name>\n<path>skills/demo/SKILL.md</path>\nbody\n</skill>"
                 .to_string(),
         }],
-        end_turn: None,
         phase: None,
     };
     let subagent_message = ResponseItem::Message {
@@ -44,7 +42,6 @@ fn serializes_memory_rollout_with_agents_removed_but_environment_kept() {
             text: "<subagent_notification>{\"agent_id\":\"a\",\"status\":\"completed\"}</subagent_notification>"
                 .to_string(),
         }],
-        end_turn: None,
         phase: None,
     };
 
@@ -66,7 +63,6 @@ fn serializes_memory_rollout_with_agents_removed_but_environment_kept() {
                     text: "<environment_context>\n<cwd>/tmp</cwd>\n</environment_context>"
                         .to_string(),
                 }],
-                end_turn: None,
                 phase: None,
             },
             subagent_message,

codex-rs/core/src/realtime_context_tests.rs

@@ -70,7 +70,6 @@ fn message(role: &str, content: ContentItem) -> ResponseItem {
         id: None,
         role: role.to_string(),
         content: vec![content],
-        end_turn: None,
         phase: None,
     }
 }

codex-rs/core/src/session/mod.rs

@@ -2364,7 +2364,6 @@ impl Session {
             content: vec![ContentItem::InputText {
                 text: format!("Warning: {}", message.into()),
             }],
-            end_turn: None,
             phase: None,
         };
 

codex-rs/core/src/session/rollout_reconstruction_tests.rs

@@ -19,7 +19,6 @@ fn user_message(text: &str) -> ResponseItem {
         content: vec![ContentItem::InputText {
             text: text.to_string(),
         }],
-        end_turn: None,
         phase: None,
     }
 }
@@ -31,7 +30,6 @@ fn assistant_message(text: &str) -> ResponseItem {
         content: vec![ContentItem::OutputText {
             text: text.to_string(),
         }],
-        end_turn: None,
         phase: None,
     }
 }
@@ -50,7 +48,6 @@ fn inter_agent_assistant_message(text: &str) -> ResponseItem {
         content: vec![ContentItem::OutputText {
             text: serde_json::to_string(&communication).unwrap(),
         }],
-        end_turn: None,
         phase: None,
     }
 }

codex-rs/core/src/session/tests.rs

@@ -175,7 +175,6 @@ fn user_message(text: &str) -> ResponseItem {
         content: vec![ContentItem::InputText {
             text: text.to_string(),
         }],
-        end_turn: None,
         phase: None,
     }
 }
@@ -187,7 +186,6 @@ fn assistant_message(text: &str) -> ResponseItem {
         content: vec![ContentItem::OutputText {
             text: text.to_string(),
         }],
-        end_turn: None,
         phase: None,
     }
 }
@@ -247,7 +245,6 @@ fn skill_message(text: &str) -> ResponseItem {
         content: vec![ContentItem::InputText {
             text: text.to_string(),
         }],
-        end_turn: None,
         phase: None,
     }
 }
@@ -1270,7 +1267,6 @@ async fn reconstruct_history_uses_replacement_history_verbatim() {
         content: vec![ContentItem::InputText {
             text: "summary".to_string(),
         }],
-        end_turn: None,
         phase: None,
     };
     let replacement_history = vec![
@@ -1281,7 +1277,6 @@ async fn reconstruct_history_uses_replacement_history_verbatim() {
             content: vec![ContentItem::InputText {
                 text: "stale developer instructions".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
     ];
@@ -5731,7 +5726,6 @@ async fn record_context_updates_and_set_reference_context_item_reinjects_full_co
         content: vec![ContentItem::InputText {
             text: format!("{}\nsummary", crate::compact::SUMMARY_PREFIX),
         }],
-        end_turn: None,
         phase: None,
     };
     session
@@ -6268,7 +6262,6 @@ async fn task_finish_emits_turn_item_lifecycle_for_leftover_pending_user_input()
         content: vec![ContentItem::InputText {
             text: "late pending input".to_string(),
         }],
-        end_turn: None,
         phase: None,
     };
     assert!(
@@ -7463,7 +7456,6 @@ async fn sample_rollout(
         content: vec![ContentItem::InputText {
             text: "first user".to_string(),
         }],
-        end_turn: None,
         phase: None,
     };
     live_history.record_items(
@@ -7478,7 +7470,6 @@ async fn sample_rollout(
         content: vec![ContentItem::OutputText {
             text: "assistant reply one".to_string(),
         }],
-        end_turn: None,
         phase: None,
     };
     live_history.record_items(
@@ -7505,7 +7496,6 @@ async fn sample_rollout(
         content: vec![ContentItem::InputText {
             text: "second user".to_string(),
         }],
-        end_turn: None,
         phase: None,
     };
     live_history.record_items(
@@ -7520,7 +7510,6 @@ async fn sample_rollout(
         content: vec![ContentItem::OutputText {
             text: "assistant reply two".to_string(),
         }],
-        end_turn: None,
         phase: None,
     };
     live_history.record_items(
@@ -7547,7 +7536,6 @@ async fn sample_rollout(
         content: vec![ContentItem::InputText {
             text: "third user".to_string(),
         }],
-        end_turn: None,
         phase: None,
     };
     live_history.record_items(
@@ -7562,7 +7550,6 @@ async fn sample_rollout(
         content: vec![ContentItem::OutputText {
             text: "assistant reply three".to_string(),
         }],
-        end_turn: None,
         phase: None,
     };
     live_history.record_items(

codex-rs/core/src/session/tests/guardian_tests.rs

@@ -552,7 +552,6 @@ async fn process_compacted_history_preserves_separate_guardian_developer_message
                 content: vec![ContentItem::InputText {
                     text: "stale developer message".to_string(),
                 }],
-                end_turn: None,
                 phase: None,
             },
             ResponseItem::Message {
@@ -561,7 +560,6 @@ async fn process_compacted_history_preserves_separate_guardian_developer_message
                 content: vec![ContentItem::InputText {
                     text: "summary".to_string(),
                 }],
-                end_turn: None,
                 phase: None,
             },
         ],

codex-rs/core/src/stream_events_utils_tests.rs

@@ -28,7 +28,6 @@ fn assistant_output_text_with_phase(text: &str, phase: Option<MessagePhase>) ->
         content: vec![ContentItem::OutputText {
             text: text.to_string(),
         }],
-        end_turn: Some(true),
         phase,
     }
 }

codex-rs/core/src/tasks/mod.rs

@@ -104,7 +104,6 @@ pub(crate) fn interrupted_turn_history_marker(
                 content: vec![ContentItem::InputText {
                     text: marker.render(),
                 }],
-                end_turn: None,
                 phase: None,
             })
         }

codex-rs/core/src/tasks/review.rs

@@ -249,7 +249,6 @@ pub(crate) async fn exit_review_mode(
                 id: Some(REVIEW_USER_MESSAGE_ID.to_string()),
                 role: "user".to_string(),
                 content: vec![ContentItem::InputText { text: user_message }],
-                end_turn: None,
                 phase: None,
             }],
         )
@@ -270,7 +269,6 @@ pub(crate) async fn exit_review_mode(
                 content: vec![ContentItem::OutputText {
                     text: assistant_message,
                 }],
-                end_turn: None,
                 phase: None,
             },
         )

codex-rs/core/src/thread_manager_tests.rs

@@ -30,7 +30,6 @@ fn user_msg(text: &str) -> ResponseItem {
         content: vec![ContentItem::OutputText {
             text: text.to_string(),
         }],
-        end_turn: None,
         phase: None,
     }
 }
@@ -41,7 +40,6 @@ fn assistant_msg(text: &str) -> ResponseItem {
         content: vec![ContentItem::OutputText {
             text: text.to_string(),
         }],
-        end_turn: None,
         phase: None,
     }
 }

codex-rs/core/src/thread_rollout_truncation_tests.rs

@@ -14,7 +14,6 @@ fn user_msg(text: &str) -> ResponseItem {
         content: vec![ContentItem::OutputText {
             text: text.to_string(),
         }],
-        end_turn: None,
         phase: None,
     }
 }
@@ -26,7 +25,6 @@ fn assistant_msg(text: &str) -> ResponseItem {
         content: vec![ContentItem::OutputText {
             text: text.to_string(),
         }],
-        end_turn: None,
         phase: None,
     }
 }

codex-rs/core/src/tools/handlers/multi_agents_tests.rs

@@ -2503,7 +2503,6 @@ async fn resume_agent_restores_closed_agent_and_accepts_send_input() {
                 content: vec![ContentItem::InputText {
                     text: "materialized".to_string(),
                 }],
-                end_turn: None,
                 phase: None,
             })]),
             AuthManager::from_auth_for_testing(CodexAuth::from_api_key("dummy")),

codex-rs/core/src/turn_timing_tests.rs

@@ -102,7 +102,6 @@ fn response_item_records_turn_ttft_for_first_output_signals() {
         content: vec![ContentItem::OutputText {
             text: "hello".to_string(),
         }],
-        end_turn: None,
         phase: None,
     }));
 }
@@ -115,7 +114,6 @@ fn response_item_records_turn_ttft_ignores_empty_non_output_items() {
         content: vec![ContentItem::OutputText {
             text: String::new(),
         }],
-        end_turn: None,
         phase: None,
     }));
     assert!(!response_item_records_turn_ttft(

codex-rs/core/tests/common/responses.rs

@@ -686,7 +686,6 @@ pub fn user_message_item(text: &str) -> ResponseItem {
         content: vec![ContentItem::InputText {
             text: text.to_string(),
         }],
-        end_turn: None,
         phase: None,
     }
 }

codex-rs/core/tests/responses_headers.rs

@@ -118,7 +118,6 @@ async fn responses_stream_includes_subagent_header_on_review() {
         content: vec![ContentItem::InputText {
             text: "hello".into(),
         }],
-        end_turn: None,
         phase: None,
     }];
 
@@ -245,7 +244,6 @@ async fn responses_stream_includes_subagent_header_on_other() {
         content: vec![ContentItem::InputText {
             text: "hello".into(),
         }],
-        end_turn: None,
         phase: None,
     }];
 
@@ -361,7 +359,6 @@ async fn responses_respects_model_info_overrides_from_config() {
         content: vec![ContentItem::InputText {
             text: "hello".into(),
         }],
-        end_turn: None,
         phase: None,
     }];
 

codex-rs/core/tests/suite/client.rs

@@ -290,7 +290,6 @@ async fn resume_includes_initial_messages_and_sends_prior_items() {
         content: vec![codex_protocol::models::ContentItem::InputText {
             text: "resumed user message".to_string(),
         }],
-        end_turn: None,
         phase: None,
     };
     let prior_user_json = serde_json::to_value(&prior_user).unwrap();
@@ -312,7 +311,6 @@ async fn resume_includes_initial_messages_and_sends_prior_items() {
         content: vec![codex_protocol::models::ContentItem::OutputText {
             text: "resumed system instruction".to_string(),
         }],
-        end_turn: None,
         phase: None,
     };
     let prior_system_json = serde_json::to_value(&prior_system).unwrap();
@@ -334,7 +332,6 @@ async fn resume_includes_initial_messages_and_sends_prior_items() {
         content: vec![codex_protocol::models::ContentItem::OutputText {
             text: "resumed assistant message".to_string(),
         }],
-        end_turn: None,
         phase: Some(MessagePhase::Commentary),
     };
     let prior_item_json = serde_json::to_value(&prior_item).unwrap();
@@ -517,7 +514,6 @@ async fn resume_replays_legacy_js_repl_image_rollout_shapes() {
                     image_url: legacy_image_url.to_string(),
                     detail: Some(DEFAULT_IMAGE_DETAIL),
                 }],
-                end_turn: None,
                 phase: None,
             }),
         },
@@ -903,7 +899,6 @@ async fn send_provider_auth_request(server: &MockServer, auth: ModelProviderAuth
         content: vec![ContentItem::InputText {
             text: "hello".to_string(),
         }],
-        end_turn: None,
         phase: None,
     });
 
@@ -2318,7 +2313,6 @@ async fn azure_responses_request_includes_store_and_reasoning_ids() {
         content: vec![ContentItem::OutputText {
             text: "message".into(),
         }],
-        end_turn: None,
         phase: None,
     });
     prompt.input.push(ResponseItem::WebSearchCall {

codex-rs/core/tests/suite/client_websockets.rs

@@ -1700,7 +1700,6 @@ fn message_item(text: &str) -> ResponseItem {
         id: None,
         role: "user".into(),
         content: vec![ContentItem::InputText { text: text.into() }],
-        end_turn: None,
         phase: None,
     }
 }
@@ -1710,7 +1709,6 @@ fn assistant_message_item(id: &str, text: &str) -> ResponseItem {
         id: Some(id.to_string()),
         role: "assistant".into(),
         content: vec![ContentItem::OutputText { text: text.into() }],
-        end_turn: None,
         phase: None,
     }
 }

codex-rs/core/tests/suite/compact.rs

@@ -1615,7 +1615,6 @@ async fn auto_compact_runs_after_resume_when_token_usage_is_over_limit() {
             content: vec![codex_protocol::models::ContentItem::OutputText {
                 text: remote_summary.to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         codex_protocol::models::ResponseItem::Compaction {
@@ -2861,7 +2860,6 @@ async fn auto_compact_counts_encrypted_reasoning_before_last_user() {
             content: vec![codex_protocol::models::ContentItem::OutputText {
                 text: "REMOTE_COMPACT_SUMMARY".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         codex_protocol::models::ResponseItem::Compaction {
@@ -2985,7 +2983,6 @@ async fn auto_compact_runs_when_reasoning_header_clears_between_turns() {
             content: vec![codex_protocol::models::ContentItem::OutputText {
                 text: "REMOTE_COMPACT_SUMMARY".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         codex_protocol::models::ResponseItem::Compaction {

codex-rs/core/tests/suite/compact_remote.rs

@@ -1181,7 +1181,6 @@ async fn remote_compact_persists_replacement_history_in_rollout() -> Result<()>
             content: vec![ContentItem::OutputText {
                 text: "COMPACTED_ASSISTANT_NOTE".to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
     ];
@@ -1320,7 +1319,6 @@ async fn remote_compact_and_resume_refresh_stale_developer_instructions() -> Res
             content: vec![ContentItem::InputText {
                 text: stale_developer_message.to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::Compaction {
@@ -1458,7 +1456,6 @@ async fn remote_compact_refreshes_stale_developer_instructions_without_resume()
             content: vec![ContentItem::InputText {
                 text: stale_developer_message.to_string(),
             }],
-            end_turn: None,
             phase: None,
         },
         ResponseItem::Compaction {

codex-rs/core/tests/suite/image_rollout.rs

@@ -164,7 +164,6 @@ async fn copy_paste_local_image_persists_rollout_request_shape() -> anyhow::Resu
                 text: "pasted image".to_string(),
             },
         ],
-        end_turn: None,
         phase: None,
     };
 
@@ -253,7 +252,6 @@ async fn drag_drop_image_persists_rollout_request_shape() -> anyhow::Result<()>
                 text: "dropped image".to_string(),
             },
         ],
-        end_turn: None,
         phase: None,
     };
 

codex-rs/core/tests/suite/prompt_debug_tests.rs

@@ -38,7 +38,6 @@ async fn build_prompt_input_includes_context_and_user_message() -> Result<()> {
         content: vec![ContentItem::InputText {
             text: "hello from debug prompt".to_string(),
         }],
-        end_turn: None,
         phase: None,
     };
     assert_eq!(input.last(), Some(&expected_user_message));

codex-rs/core/tests/suite/realtime_conversation.rs

@@ -1605,7 +1605,6 @@ async fn conversation_startup_context_current_thread_selects_many_turns_by_budge
                     id: None,
                     role: "user".to_string(),
                     content: vec![ContentItem::InputText { text: user_turn }],
-                    end_turn: None,
                     phase: None,
                 }),
                 RolloutItem::ResponseItem(ResponseItem::Message {
@@ -1614,7 +1613,6 @@ async fn conversation_startup_context_current_thread_selects_many_turns_by_budge
                     content: vec![ContentItem::OutputText {
                         text: assistant_turn,
                     }],
-                    end_turn: None,
                     phase: None,
                 }),
             ]

codex-rs/core/tests/suite/review.rs

@@ -538,7 +538,6 @@ async fn review_input_isolated_from_parent_history() {
             content: vec![codex_protocol::models::ContentItem::InputText {
                 text: "parent: earlier user message".to_string(),
             }],
-            end_turn: None,
             phase: None,
         };
         let user_json = serde_json::to_value(&user).unwrap();
@@ -558,7 +557,6 @@ async fn review_input_isolated_from_parent_history() {
             content: vec![codex_protocol::models::ContentItem::OutputText {
                 text: "parent: assistant reply".to_string(),
             }],
-            end_turn: None,
             phase: None,
         };
         let assistant_json = serde_json::to_value(&assistant).unwrap();

codex-rs/protocol/src/items.rs

@@ -266,7 +266,6 @@ pub fn build_hook_prompt_message(fragments: &[HookPromptFragment]) -> Option<Res
         id: Some(uuid::Uuid::new_v4().to_string()),
         role: "user".to_string(),
         content,
-        end_turn: None,
         phase: None,
     })
 }

codex-rs/protocol/src/models.rs

@@ -757,10 +757,6 @@ pub enum ResponseItem {
         id: Option<String>,
         role: String,
         content: Vec<ContentItem>,
-        // Do not use directly, no available consistently across all providers.
-        #[serde(default, skip_serializing_if = "Option::is_none")]
-        #[ts(optional)]
-        end_turn: Option<bool>,
         // Optional output-message phase (for example: "commentary", "final_answer").
         // Availability varies by provider/model, so downstream consumers must
         // preserve fallback behavior when this is absent.
@@ -1114,7 +1110,6 @@ impl From<ResponseInputItem> for ResponseItem {
                 role,
                 content,
                 id: None,
-                end_turn: None,
                 phase: None,
             },
             ResponseInputItem::FunctionCallOutput { call_id, output } => {

codex-rs/protocol/src/protocol.rs

@@ -2867,7 +2867,6 @@ impl From<CompactedItem> for ResponseItem {
             content: vec![ContentItem::OutputText {
                 text: value.message,
             }],
-            end_turn: None,
             phase: None,
         }
     }

codex-rs/rollout/src/tests.rs

@@ -1179,7 +1179,6 @@ async fn test_updated_at_uses_file_mtime() -> Result<()> {
                 content: vec![ContentItem::OutputText {
                     text: format!("reply-{idx}"),
                 }],
-                end_turn: None,
                 phase: None,
             }),
         };

codex-rs/state/src/extract.rs

@@ -177,7 +177,6 @@ mod tests {
             content: vec![ContentItem::InputText {
                 text: "hello from response item".to_string(),
             }],
-            end_turn: None,
             phase: None,
         });
 

codex-rs/tui/src/app/side.rs

@@ -440,7 +440,6 @@ impl App {
             content: vec![ContentItem::InputText {
                 text: SIDE_BOUNDARY_PROMPT.to_string(),
             }],
-            end_turn: None,
             phase: None,
         }
     }