diff --git a/codex-rs/app-server/README.md b/codex-rs/app-server/README.md
index 7a2e036918..20b5ed1f7c 100644
--- a/codex-rs/app-server/README.md
+++ b/codex-rs/app-server/README.md
@@ -144,9 +144,9 @@ Example with notification opt-out:
 - `thread/unsubscribe` — unsubscribe this connection from thread turn/item events. If this was the last subscriber, the server shuts down and unloads the thread, then emits `thread/closed`.
 - `thread/name/set` — set or update a thread’s user-facing name for either a loaded thread or a persisted rollout; returns `{}` on success and emits `thread/name/updated` to initialized, opted-in clients. Thread names are not required to be unique; name lookups resolve to the most recently updated thread.
 - `thread/unarchive` — move an archived rollout file back into the sessions directory; returns the restored `thread` on success and emits `thread/unarchived`.
-- `thread/alarm/create` — create a runtime alarm on a loaded thread; accepts `cronExpression`, `prompt`, `delivery`, and optional `runOnce`, returns the created alarm, and requires the experimental feature flag `alarm_scheduler` to be enabled for that thread.
-- `thread/alarm/delete` — delete one runtime alarm from a loaded thread by id; returns `{ deleted }` and requires `alarm_scheduler`.
-- `thread/alarm/list` — list runtime alarms for a loaded thread; returns `{ data }` and requires `alarm_scheduler`.
+- `thread/alarm/create` — create a runtime alarm on a loaded thread; accepts `cronExpression`, `prompt`, `delivery`, and optional `runOnce`, returns the created alarm, and requires the under-development feature flag `alarm_tool` to be enabled for that thread.
+- `thread/alarm/delete` — delete one runtime alarm from a loaded thread by id; returns `{ deleted }` and requires `alarm_tool`.
+- `thread/alarm/list` — list runtime alarms for a loaded thread; returns `{ data }` and requires `alarm_tool`.
 - `thread/alarm/updated` — notification emitted when a loaded thread’s alarm list changes, including run-once alarms deleting themselves after execution or alarms restored from disk.
 - `thread/alarm/fired` — notification emitted when a thread alarm fires, either for a synthetic follow-on turn or a same-turn steer delivery.
 - `thread/compact/start` — trigger conversation history compaction for a thread; returns `{}` immediately while progress streams through standard turn/item notifications.
diff --git a/codex-rs/core/config.schema.json b/codex-rs/core/config.schema.json
index e2687e4a9e..575230e774 100644
--- a/codex-rs/core/config.schema.json
+++ b/codex-rs/core/config.schema.json
@@ -332,7 +332,7 @@
           "default": null,
           "description": "Optional feature toggles scoped to this profile.",
           "properties": {
-            "alarm_scheduler": {
+            "alarm_tool": {
               "type": "boolean"
             },
             "apply_patch_freeform": {
@@ -2032,7 +2032,7 @@
       "default": null,
       "description": "Centralized feature flags (new). Prefer this over individual toggles.",
       "properties": {
-        "alarm_scheduler": {
+        "alarm_tool": {
           "type": "boolean"
         },
         "apply_patch_freeform": {
diff --git a/codex-rs/features/src/lib.rs b/codex-rs/features/src/lib.rs
index 84e6dbdb42..1478a4b47b 100644
--- a/codex-rs/features/src/lib.rs
+++ b/codex-rs/features/src/lib.rs
@@ -817,12 +817,8 @@ pub const FEATURES: &[FeatureSpec] = &[
     },
     FeatureSpec {
         id: Feature::AlarmScheduler,
-        key: "alarm_scheduler",
-        stage: Stage::Experimental {
-            name: "Alarm Scheduler",
-            menu_description: "Enable thread-local scheduled alarms and the /loop command.",
-            announcement: "",
-        },
+        key: "alarm_tool",
+        stage: Stage::UnderDevelopment,
         default_enabled: false,
     },
     FeatureSpec {