diff --git a/pyproject.toml b/pyproject.toml
index 57757723ee1f..52283c7fbfb7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1286,7 +1286,6 @@ module = [
     "sentry.sentry_apps.api.parsers.*",
     "sentry.sentry_apps.api.serializers.*",
     "sentry.sentry_apps.components",
-    "sentry.sentry_apps.external_requests.*",
     "sentry.sentry_apps.installations",
     "sentry.sentry_apps.logic",
     "sentry.sentry_apps.metrics",
diff --git a/src/sentry/sentry_apps/external_requests/alert_rule_action_requester.py b/src/sentry/sentry_apps/external_requests/alert_rule_action_requester.py
index e43cbc9de5ec..768802e2f38c 100644
--- a/src/sentry/sentry_apps/external_requests/alert_rule_action_requester.py
+++ b/src/sentry/sentry_apps/external_requests/alert_rule_action_requester.py
@@ -20,8 +20,9 @@
     SentryAppInteractionEvent,
     SentryAppInteractionType,
 )
+from sentry.sentry_apps.models.sentry_app import SentryApp
 from sentry.sentry_apps.models.sentry_app_installation import SentryAppInstallation
-from sentry.sentry_apps.services.app.model import RpcSentryAppInstallation
+from sentry.sentry_apps.services.app.model import RpcSentryApp, RpcSentryAppInstallation
 from sentry.sentry_apps.utils.errors import SentryAppErrorType, SentryAppIntegratorError
 from sentry.utils import json
 
@@ -160,7 +161,7 @@ def _get_response_message(self, response: Response | None, default_message: str)
         return f"{self.sentry_app.name}: {message}"
 
     @cached_property
-    def body(self):
+    def body(self) -> str:
         return json.dumps(
             {
                 "fields": self.fields,
@@ -169,5 +170,5 @@ def body(self):
         )
 
     @cached_property
-    def sentry_app(self):
+    def sentry_app(self) -> SentryApp | RpcSentryApp:
         return self.install.sentry_app
diff --git a/src/sentry/sentry_apps/external_requests/issue_link_requester.py b/src/sentry/sentry_apps/external_requests/issue_link_requester.py
index cd8d2d8f4813..1ac66c72a4c0 100644
--- a/src/sentry/sentry_apps/external_requests/issue_link_requester.py
+++ b/src/sentry/sentry_apps/external_requests/issue_link_requester.py
@@ -23,7 +23,9 @@
     SentryAppInteractionEvent,
     SentryAppInteractionType,
 )
+from sentry.sentry_apps.models.sentry_app import SentryApp
 from sentry.sentry_apps.services.app import RpcSentryAppInstallation
+from sentry.sentry_apps.services.app.model import RpcSentryApp
 from sentry.sentry_apps.utils.errors import SentryAppIntegratorError
 from sentry.users.models.user import User
 from sentry.users.services.user import RpcUser
@@ -185,7 +187,7 @@ def _build_headers(self) -> dict[str, str]:
         }
 
     @cached_property
-    def body(self):
+    def body(self) -> str:
         body: dict[str, Any] = {
             "fields": {},
             "issueId": self.group.id,
@@ -199,5 +201,5 @@ def body(self):
         return json.dumps(body)
 
     @cached_property
-    def sentry_app(self):
+    def sentry_app(self) -> SentryApp | RpcSentryApp:
         return self.install.sentry_app
diff --git a/src/sentry/sentry_apps/external_requests/utils.py b/src/sentry/sentry_apps/external_requests/utils.py
index 5fd485490fc8..1bb883e99ac1 100644
--- a/src/sentry/sentry_apps/external_requests/utils.py
+++ b/src/sentry/sentry_apps/external_requests/utils.py
@@ -1,7 +1,7 @@
 import logging
 import re
 from collections.abc import Mapping
-from typing import Any
+from typing import Any, Literal
 from urllib.parse import urlparse
 
 from jsonschema import Draft7Validator
@@ -94,14 +94,8 @@ def integrator_error_message(response: Response | None, fallback: str) -> str:
 SCHEMA_LIST = {"select": SELECT_OPTIONS_SCHEMA, "issue_link": ISSUE_LINKER_SCHEMA}
 
 
-def validate(instance, schema_type):
-    schema = SCHEMA_LIST[schema_type]
-    v = Draft7Validator(schema)
-
-    if not v.is_valid(instance):
-        return False
-
-    return True
+def validate(instance: object, schema_type: Literal["select", "issue_link"]) -> bool:
+    return Draft7Validator(SCHEMA_LIST[schema_type]).is_valid(instance)
 
 
 def send_and_save_sentry_app_request(