Keep image_detail_original as a removed feature flag (#17803)

codex-rs/cli/src/main.rs

@@ -2205,6 +2205,19 @@ mod tests {
         );
     }
 
+    #[test]
+    fn feature_toggles_accept_removed_image_detail_original_flag() {
+        let toggles = FeatureToggles {
+            enable: vec!["image_detail_original".to_string()],
+            disable: Vec::new(),
+        };
+        let overrides = toggles.to_overrides().expect("valid features");
+        assert_eq!(
+            overrides,
+            vec!["features.image_detail_original=true".to_string(),]
+        );
+    }
+
     #[test]
     fn feature_toggles_unknown_feature_errors() {
         let toggles = FeatureToggles {

codex-rs/core/config.schema.json

@@ -398,6 +398,9 @@
             "guardian_approval": {
               "type": "boolean"
             },
+            "image_detail_original": {
+              "type": "boolean"
+            },
             "image_generation": {
               "type": "boolean"
             },
@@ -2251,6 +2254,9 @@
         "guardian_approval": {
           "type": "boolean"
         },
+        "image_detail_original": {
+          "type": "boolean"
+        },
         "image_generation": {
           "type": "boolean"
         },

codex-rs/features/src/lib.rs

@@ -178,6 +178,9 @@ pub enum Feature {
     RealtimeConversation,
     /// Connect app-server to the ChatGPT remote control service.
     RemoteControl,
+    /// Removed compatibility flag retained as a no-op so old wrappers can
+    /// still pass `--enable image_detail_original`.
+    ImageDetailOriginal,
     /// Removed compatibility flag. The TUI now always uses the app-server implementation.
     TuiAppServer,
     /// Prevent idle system sleep while a turn is actively running.
@@ -874,6 +877,12 @@ pub const FEATURES: &[FeatureSpec] = &[
         stage: Stage::UnderDevelopment,
         default_enabled: false,
     },
+    FeatureSpec {
+        id: Feature::ImageDetailOriginal,
+        key: "image_detail_original",
+        stage: Stage::Removed,
+        default_enabled: false,
+    },
     FeatureSpec {
         id: Feature::TuiAppServer,
         key: "tui_app_server",

codex-rs/features/src/tests.rs

@@ -53,6 +53,12 @@ fn use_linux_sandbox_bwrap_is_removed_and_disabled_by_default() {
     assert_eq!(Feature::UseLinuxSandboxBwrap.default_enabled(), false);
 }
 
+#[test]
+fn image_detail_original_is_removed_and_disabled_by_default() {
+    assert_eq!(Feature::ImageDetailOriginal.stage(), Stage::Removed);
+    assert_eq!(Feature::ImageDetailOriginal.default_enabled(), false);
+}
+
 #[test]
 fn js_repl_is_experimental_and_user_toggleable() {
     let spec = Feature::JsRepl.info();
@@ -145,6 +151,14 @@ fn use_linux_sandbox_bwrap_is_a_removed_feature_key() {
     );
 }
 
+#[test]
+fn image_detail_original_is_a_removed_feature_key() {
+    assert_eq!(
+        feature_for_key("image_detail_original"),
+        Some(Feature::ImageDetailOriginal)
+    );
+}
+
 #[test]
 fn image_generation_is_under_development() {
     assert_eq!(Feature::ImageGeneration.stage(), Stage::UnderDevelopment);