diff --git a/nodejs/scripts/update-protocol-version.ts b/nodejs/scripts/update-protocol-version.ts
index 46f6189e8..a18a560c7 100644
--- a/nodejs/scripts/update-protocol-version.ts
+++ b/nodejs/scripts/update-protocol-version.ts
@@ -8,7 +8,7 @@
  * Reads from sdk-protocol-version.json and generates:
  * - nodejs/src/sdkProtocolVersion.ts
  * - go/sdk_protocol_version.go
- * - python/copilot/sdk_protocol_version.py
+ * - python/copilot/_sdk_protocol_version.py
  * - dotnet/src/SdkProtocolVersion.cs
  *
  * Run this script whenever the protocol version changes.
@@ -89,8 +89,8 @@ def get_sdk_protocol_version() -> int:
     """
     return SDK_PROTOCOL_VERSION
 `;
-fs.writeFileSync(path.join(rootDir, "python", "copilot", "sdk_protocol_version.py"), pythonCode);
-console.log("  ✓ python/copilot/sdk_protocol_version.py");
+fs.writeFileSync(path.join(rootDir, "python", "copilot", "_sdk_protocol_version.py"), pythonCode);
+console.log("  ✓ python/copilot/_sdk_protocol_version.py");
 
 // Generate C#
 const csharpCode = `// Code generated by update-protocol-version.ts. DO NOT EDIT.
diff --git a/python/copilot/jsonrpc.py b/python/copilot/_jsonrpc.py
similarity index 100%
rename from python/copilot/jsonrpc.py
rename to python/copilot/_jsonrpc.py
diff --git a/python/copilot/sdk_protocol_version.py b/python/copilot/_sdk_protocol_version.py
similarity index 100%
rename from python/copilot/sdk_protocol_version.py
rename to python/copilot/_sdk_protocol_version.py
diff --git a/python/copilot/telemetry.py b/python/copilot/_telemetry.py
similarity index 100%
rename from python/copilot/telemetry.py
rename to python/copilot/_telemetry.py
diff --git a/python/copilot/client.py b/python/copilot/client.py
index 0d8074fe0..81c1459f2 100644
--- a/python/copilot/client.py
+++ b/python/copilot/client.py
@@ -25,12 +25,12 @@
 from pathlib import Path
 from typing import Any, cast, overload
 
+from ._jsonrpc import JsonRpcClient, ProcessExitedError
+from ._sdk_protocol_version import get_sdk_protocol_version
+from ._telemetry import get_trace_context, trace_context
 from .generated.rpc import ServerRpc
 from .generated.session_events import PermissionRequest, session_event_from_dict
-from .jsonrpc import JsonRpcClient, ProcessExitedError
-from .sdk_protocol_version import get_sdk_protocol_version
 from .session import CopilotSession
-from .telemetry import get_trace_context, trace_context
 from .types import (
     ConnectionState,
     CustomAgentConfig,
diff --git a/python/copilot/generated/rpc.py b/python/copilot/generated/rpc.py
index 564ccf64e..da6748d79 100644
--- a/python/copilot/generated/rpc.py
+++ b/python/copilot/generated/rpc.py
@@ -6,7 +6,7 @@
 from typing import TYPE_CHECKING
 
 if TYPE_CHECKING:
-    from ..jsonrpc import JsonRpcClient
+    from .._jsonrpc import JsonRpcClient
 
 
 from dataclasses import dataclass
diff --git a/python/copilot/session.py b/python/copilot/session.py
index e4a17f2f9..90d156c4c 100644
--- a/python/copilot/session.py
+++ b/python/copilot/session.py
@@ -11,6 +11,8 @@
 from collections.abc import Callable
 from typing import Any, Literal, cast
 
+from ._jsonrpc import JsonRpcError, ProcessExitedError
+from ._telemetry import get_trace_context, trace_context
 from .generated.rpc import (
     Kind,
     Level,
@@ -23,8 +25,6 @@
     SessionToolsHandlePendingToolCallParams,
 )
 from .generated.session_events import SessionEvent, SessionEventType, session_event_from_dict
-from .jsonrpc import JsonRpcError, ProcessExitedError
-from .telemetry import get_trace_context, trace_context
 from .types import (
     Attachment,
     PermissionRequest,
diff --git a/python/test_jsonrpc.py b/python/test_jsonrpc.py
index 7c3c8dab2..c0ab2c6f4 100644
--- a/python/test_jsonrpc.py
+++ b/python/test_jsonrpc.py
@@ -13,7 +13,7 @@
 
 import pytest
 
-from copilot.jsonrpc import JsonRpcClient
+from copilot._jsonrpc import JsonRpcClient
 
 
 class MockProcess:
diff --git a/python/test_telemetry.py b/python/test_telemetry.py
index 2b4649011..aec38f816 100644
--- a/python/test_telemetry.py
+++ b/python/test_telemetry.py
@@ -4,7 +4,7 @@
 
 from unittest.mock import patch
 
-from copilot.telemetry import get_trace_context, trace_context
+from copilot._telemetry import get_trace_context, trace_context
 from copilot.types import SubprocessConfig, TelemetryConfig
 
 
diff --git a/scripts/codegen/python.ts b/scripts/codegen/python.ts
index 3dfa52535..cbbc3df38 100644
--- a/scripts/codegen/python.ts
+++ b/scripts/codegen/python.ts
@@ -10,8 +10,9 @@ import fs from "fs/promises";
 import type { JSONSchema7 } from "json-schema";
 import { FetchingJSONSchemaStore, InputData, JSONSchemaInput, quicktype } from "quicktype-core";
 import {
-    getSessionEventsSchemaPath,
     getApiSchemaPath,
+    getSessionEventsSchemaPath,
+    isRpcMethod,
     postProcessSchema,
     writeGeneratedFile,
     isRpcMethod,
@@ -242,7 +243,7 @@ Generated from: api.schema.json
 from typing import TYPE_CHECKING
 
 if TYPE_CHECKING:
-    from ..jsonrpc import JsonRpcClient
+    from .._jsonrpc import JsonRpcClient
 
 `);
     lines.push(typesCode);