From 2bd87d1a7580b2ac7a1727660f2dcb9ab0f7393d Mon Sep 17 00:00:00 2001
From: Ahmed Ibrahim <aibrahim@openai.com>
Date: Wed, 25 Feb 2026 14:54:54 -0800
Subject: [PATCH] only use preambles for realtime (#12831)

Reverts openai/codex#12830
---
 codex-rs/core/src/codex.rs | 115 ++++++++++++++++++++++++-------------
 1 file changed, 74 insertions(+), 41 deletions(-)

diff --git a/codex-rs/core/src/codex.rs b/codex-rs/core/src/codex.rs
index 3d27faf9b..f55c73c1d 100644
--- a/codex-rs/core/src/codex.rs
+++ b/codex-rs/core/src/codex.rs
@@ -197,7 +197,6 @@ use crate::protocol::ModelRerouteEvent;
 use crate::protocol::ModelRerouteReason;
 use crate::protocol::NetworkApprovalContext;
 use crate::protocol::Op;
-use crate::protocol::PatchApplyStatus;
 use crate::protocol::PlanDeltaEvent;
 use crate::protocol::RateLimitSnapshot;
 use crate::protocol::ReasoningContentDeltaEvent;
@@ -5818,46 +5817,80 @@ fn realtime_text_for_event(msg: &EventMsg) -> Option<String> {
             TurnItem::AgentMessage(item) => Some(agent_message_text(item)),
             _ => None,
         },
-        EventMsg::ExecCommandBegin(event) => {
-            let command = event.command.join(" ");
-            Some(format!(
-                "Exec command started: {command}\nWorking directory: {}",
-                event.cwd.display()
-            ))
-        }
-        EventMsg::PatchApplyBegin(event) => {
-            let mut files: Vec<String> = event
-                .changes
-                .keys()
-                .map(|path| path.display().to_string())
-                .collect();
-            files.sort();
-            let file_list = if files.is_empty() {
-                "none".to_string()
-            } else {
-                files.join(", ")
-            };
-            Some(format!(
-                "apply_patch started ({count} file change(s))\nFiles: {file_list}",
-                count = files.len()
-            ))
-        }
-        EventMsg::PatchApplyEnd(event) => {
-            let status = match event.status {
-                PatchApplyStatus::Completed => "completed",
-                PatchApplyStatus::Failed => "failed",
-                PatchApplyStatus::Declined => "declined",
-            };
-            let mut text = format!("apply_patch {status}");
-            if !event.stdout.is_empty() {
-                text.push_str(&format!("\nstdout:\n{}", event.stdout));
-            }
-            if !event.stderr.is_empty() {
-                text.push_str(&format!("\nstderr:\n{}", event.stderr));
-            }
-            Some(text)
-        }
-        _ => None,
+        EventMsg::Error(_)
+        | EventMsg::Warning(_)
+        | EventMsg::RealtimeConversationStarted(_)
+        | EventMsg::RealtimeConversationRealtime(_)
+        | EventMsg::RealtimeConversationClosed(_)
+        | EventMsg::ModelReroute(_)
+        | EventMsg::ContextCompacted(_)
+        | EventMsg::ThreadRolledBack(_)
+        | EventMsg::TurnStarted(_)
+        | EventMsg::TurnComplete(_)
+        | EventMsg::TokenCount(_)
+        | EventMsg::UserMessage(_)
+        | EventMsg::AgentMessageDelta(_)
+        | EventMsg::AgentReasoning(_)
+        | EventMsg::AgentReasoningDelta(_)
+        | EventMsg::AgentReasoningRawContent(_)
+        | EventMsg::AgentReasoningRawContentDelta(_)
+        | EventMsg::AgentReasoningSectionBreak(_)
+        | EventMsg::SessionConfigured(_)
+        | EventMsg::ThreadNameUpdated(_)
+        | EventMsg::McpStartupUpdate(_)
+        | EventMsg::McpStartupComplete(_)
+        | EventMsg::McpToolCallBegin(_)
+        | EventMsg::McpToolCallEnd(_)
+        | EventMsg::WebSearchBegin(_)
+        | EventMsg::WebSearchEnd(_)
+        | EventMsg::ExecCommandBegin(_)
+        | EventMsg::ExecCommandOutputDelta(_)
+        | EventMsg::TerminalInteraction(_)
+        | EventMsg::ExecCommandEnd(_)
+        | EventMsg::PatchApplyBegin(_)
+        | EventMsg::PatchApplyEnd(_)
+        | EventMsg::ViewImageToolCall(_)
+        | EventMsg::ExecApprovalRequest(_)
+        | EventMsg::RequestUserInput(_)
+        | EventMsg::DynamicToolCallRequest(_)
+        | EventMsg::DynamicToolCallResponse(_)
+        | EventMsg::SkillRequestApproval(_)
+        | EventMsg::ElicitationRequest(_)
+        | EventMsg::ApplyPatchApprovalRequest(_)
+        | EventMsg::DeprecationNotice(_)
+        | EventMsg::BackgroundEvent(_)
+        | EventMsg::UndoStarted(_)
+        | EventMsg::UndoCompleted(_)
+        | EventMsg::StreamError(_)
+        | EventMsg::TurnDiff(_)
+        | EventMsg::GetHistoryEntryResponse(_)
+        | EventMsg::McpListToolsResponse(_)
+        | EventMsg::ListCustomPromptsResponse(_)
+        | EventMsg::ListSkillsResponse(_)
+        | EventMsg::ListRemoteSkillsResponse(_)
+        | EventMsg::RemoteSkillDownloaded(_)
+        | EventMsg::SkillsUpdateAvailable
+        | EventMsg::PlanUpdate(_)
+        | EventMsg::TurnAborted(_)
+        | EventMsg::ShutdownComplete
+        | EventMsg::EnteredReviewMode(_)
+        | EventMsg::ExitedReviewMode(_)
+        | EventMsg::RawResponseItem(_)
+        | EventMsg::ItemStarted(_)
+        | EventMsg::AgentMessageContentDelta(_)
+        | EventMsg::PlanDelta(_)
+        | EventMsg::ReasoningContentDelta(_)
+        | EventMsg::ReasoningRawContentDelta(_)
+        | EventMsg::CollabAgentSpawnBegin(_)
+        | EventMsg::CollabAgentSpawnEnd(_)
+        | EventMsg::CollabAgentInteractionBegin(_)
+        | EventMsg::CollabAgentInteractionEnd(_)
+        | EventMsg::CollabWaitingBegin(_)
+        | EventMsg::CollabWaitingEnd(_)
+        | EventMsg::CollabCloseBegin(_)
+        | EventMsg::CollabCloseEnd(_)
+        | EventMsg::CollabResumeBegin(_)
+        | EventMsg::CollabResumeEnd(_) => None,
     }
 }