From 6b6ca911838de320e96a76c3ab5e8e8e3422ec2f Mon Sep 17 00:00:00 2001
From: cthomas <caren@letta.com>
Date: Thu, 15 Jan 2026 15:37:33 -0800
Subject: [PATCH] fix: remove letta ping schema override (#8790)

---
 letta/schemas/letta_message.py | 18 ------------------
 letta/server/rest_api/app.py   |  3 +--
 2 files changed, 1 insertion(+), 20 deletions(-)

diff --git a/letta/schemas/letta_message.py b/letta/schemas/letta_message.py
index 63b459e0..4decadc8 100644
--- a/letta/schemas/letta_message.py
+++ b/letta/schemas/letta_message.py
@@ -458,24 +458,6 @@ def create_letta_message_union_schema():
     }
 
 
-def create_letta_ping_schema():
-    return {
-        "properties": {
-            "message_type": {
-                "type": "string",
-                "const": "ping",
-                "title": "Message Type",
-                "description": "The type of the message.",
-                "default": "ping",
-            }
-        },
-        "type": "object",
-        "required": ["message_type"],
-        "title": "LettaPing",
-        "description": "Ping messages are a keep-alive to prevent SSE streams from timing out during long running requests.",
-    }
-
-
 def create_letta_error_message_schema():
     return {
         "properties": {
diff --git a/letta/server/rest_api/app.py b/letta/server/rest_api/app.py
index a2406e11..d56fb4f2 100644
--- a/letta/server/rest_api/app.py
+++ b/letta/server/rest_api/app.py
@@ -60,7 +60,7 @@ from letta.jobs.scheduler import start_scheduler_with_leader_election
 from letta.log import get_logger
 from letta.orm.errors import DatabaseTimeoutError, ForeignKeyConstraintViolationError, NoResultFound, UniqueConstraintViolationError
 from letta.otel.tracing import get_trace_id
-from letta.schemas.letta_message import create_letta_error_message_schema, create_letta_message_union_schema, create_letta_ping_schema
+from letta.schemas.letta_message import create_letta_error_message_schema, create_letta_message_union_schema
 from letta.schemas.letta_message_content import (
     create_letta_assistant_message_content_union_schema,
     create_letta_message_content_union_schema,
@@ -106,7 +106,6 @@ def generate_openapi_schema(app: FastAPI):
     letta_docs["components"]["schemas"]["LettaMessageContentUnion"] = create_letta_message_content_union_schema()
     letta_docs["components"]["schemas"]["LettaAssistantMessageContentUnion"] = create_letta_assistant_message_content_union_schema()
     letta_docs["components"]["schemas"]["LettaUserMessageContentUnion"] = create_letta_user_message_content_union_schema()
-    letta_docs["components"]["schemas"]["LettaPing"] = create_letta_ping_schema()
     letta_docs["components"]["schemas"]["LettaErrorMessage"] = create_letta_error_message_schema()
 
     # Update the app's schema with our modified version