From 59f7da58d6ae8401304554f807023610181f65f0 Mon Sep 17 00:00:00 2001
From: Tamir Duberstein <tamird@openai.com>
Date: Thu, 20 Aug 2026 12:12:01 +0000
Subject: [PATCH] Log TUI app event variants without their payloads (#39709)

## Why

The TUI session logger is meant to record only the variant for unhandled app
events. Parsing `Debug` output removed tuple payloads but retained fields from
struct variants.

## What changed

Derive `IntoStaticStr` for `AppEvent` and use that conversion when recording
fallback `app_event` entries, so the `variant` field consistently contains only
the enum variant name.

GitOrigin-RevId: 5b539f414269c6b001e69cf9496db5b49aceb759
---
 codex-rs/tui/src/app_event.rs   | 3 ++-
 codex-rs/tui/src/session_log.rs | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/codex-rs/tui/src/app_event.rs b/codex-rs/tui/src/app_event.rs
index 85938623a4..a22dd9db8a 100644
--- a/codex-rs/tui/src/app_event.rs
+++ b/codex-rs/tui/src/app_event.rs
@@ -40,6 +40,7 @@ use codex_protocol::ThreadId;
 use codex_protocol::openai_models::ModelPreset;
 use codex_utils_absolute_path::AbsolutePathBuf;
 use codex_utils_approval_presets::ApprovalPreset;
+use strum_macros::IntoStaticStr;
 use uuid::Uuid;
 
 use crate::app_command::AppCommand;
@@ -193,7 +194,7 @@ pub(crate) enum TranscriptExportDestination {
 }
 
 #[allow(clippy::large_enum_variant)]
-#[derive(Debug)]
+#[derive(Debug, IntoStaticStr)]
 pub(crate) enum AppEvent {
     /// Open the daemon-wide overview of loaded root sessions.
     OpenAgentsOverview,
diff --git a/codex-rs/tui/src/session_log.rs b/codex-rs/tui/src/session_log.rs
index 0994367685..1602aae797 100644
--- a/codex-rs/tui/src/session_log.rs
+++ b/codex-rs/tui/src/session_log.rs
@@ -199,11 +199,12 @@ pub(crate) fn log_inbound_app_event(event: &AppEvent) {
         }
         // Noise or control flow – record variant only
         other => {
+            let variant: &'static str = other.into();
             let value = json!({
                 "ts": now_ts(),
                 "dir": "to_tui",
                 "kind": "app_event",
-                "variant": format!("{other:?}").split('(').next().unwrap_or("app_event"),
+                "variant": variant,
             });
             LOGGER.write_json_line(value);
         }