diff --git a/shared/openai.py b/shared/openai.py
index 1caa4a43..0a0a546f 100644
--- a/shared/openai.py
+++ b/shared/openai.py
@@ -3,15 +3,18 @@ from typing import TYPE_CHECKING, Literal, TypeAlias, get_type_hints
 if TYPE_CHECKING:
     import openai.types as openai_types
     import openai.types.chat as openai_chat
+
     types = openai_types
     chat = openai_chat
 else:
     types = None
     chat = None
 
-FinishReason: TypeAlias = Literal["stop", "length", "tool_calls", "content_filter", "function_call"]
-assert get_type_hints(chat.chat_completion_chunk.Choice)["finish_reason"] == FinishReason, (
-    "Upstream changed Choice.finish_reason; update FinishReason alias."
-)
+FinishReason: TypeAlias = Literal[
+    "stop", "length", "tool_calls", "content_filter", "function_call"
+]
+assert (
+    get_type_hints(chat.chat_completion_chunk.Choice)["finish_reason"] == FinishReason
+), "Upstream changed Choice.finish_reason; update FinishReason alias."
 
-__all__ = ["types", "chat", "FinishReason"]
\ No newline at end of file
+__all__ = ["types", "chat", "FinishReason"]
diff --git a/shared/types/event_sourcing.py b/shared/types/event_sourcing.py
index ed239e43..e4b6138b 100644
--- a/shared/types/event_sourcing.py
+++ b/shared/types/event_sourcing.py
@@ -60,12 +60,12 @@ class Event(BaseModel, Generic[TEventType]):
     event_type: TEventType
     event_id: EventId
 
+
 class PersistedEvent(BaseModel, Generic[TEventType]):
     event: Event[TEventType]
     sequence_number: int = Field(gt=0)
 
 
-
 class State(BaseModel, Generic[EventTypeT]):
     event_types: tuple[EventTypeT, ...] = get_args(EventTypeT)
     sequence_number: int = Field(default=0, ge=0)
@@ -76,7 +76,9 @@ EventTypeParser: TypeAdapter[AnnotatedEventType] = TypeAdapter(AnnotatedEventTyp
 
 Applicator = Callable[[State[EventTypeT], Event[TEventType]], State[EventTypeT]]
 Apply = Callable[[State[EventTypeT], Event[EventTypeT]], State[EventTypeT]]
-SagaApplicator = Callable[[State[EventTypeT], Event[TEventType]], Sequence[Event[EventTypeT]]]
+SagaApplicator = Callable[
+    [State[EventTypeT], Event[TEventType]], Sequence[Event[EventTypeT]]
+]
 Saga = Callable[[State[EventTypeT], Event[EventTypeT]], Sequence[Event[EventTypeT]]]
 
 StateAndEvent = Tuple[State[EventTypeT], Event[EventTypeT]]
@@ -130,4 +132,6 @@ class Command(BaseModel, Generic[TEventType, TCommandType]):
     command_id: CommandId
 
 
-Decide = Callable[[State[EventTypeT], Command[TEventType, TCommandType]], Sequence[Event[EventTypeT]]]
+Decide = Callable[
+    [State[EventTypeT], Command[TEventType, TCommandType]], Sequence[Event[EventTypeT]]
+]
diff --git a/shared/types/events.py b/shared/types/events.py
index 8b9b9cb5..9e79e659 100644
--- a/shared/types/events.py
+++ b/shared/types/events.py
@@ -25,17 +25,21 @@ _TimerId = Annotated[UUID, UuidVersion(4)]
 TimerId = type("TimerId", (UUID,), {})
 TimerIdParser: TypeAdapter[TimerId] = TypeAdapter(_TimerId)
 
+
 class Shard(BaseModel):
     # TODO: this has changed
     model_id: ModelId
 
+
 class InstanceComputePlan(BaseModel):
     # TODO: this has changed
     model_id: ModelId
 
+
 class Timer(BaseModel):
     timer_id: TimerId
 
+
 # Chat completions ----------------------------------------------------------------
 class ChatCompletionsRequestStarted(Event[Literal["ChatCompletionsRequestStarted"]]):
     event_type = "ChatCompletionsRequestStarted"
@@ -44,7 +48,9 @@ class ChatCompletionsRequestStarted(Event[Literal["ChatCompletionsRequestStarted
     request: chat.completion_create_params.CompletionCreateParams
 
 
-class ChatCompletionsRequestCompleted(Event[Literal["ChatCompletionsRequestCompleted"]]):
+class ChatCompletionsRequestCompleted(
+    Event[Literal["ChatCompletionsRequestCompleted"]]
+):
     event_type = "ChatCompletionsRequestCompleted"
     request_id: RequestId
     model_id: ModelId
@@ -265,6 +271,7 @@ class DeviceProfiled(Event[Literal["DeviceProfiled"]]):
     available_memory_bytes: int
     total_flops_fp16: int
 
+
 # Token streaming ----------------------------------------------------------------
 class TokenGenerated(Event[Literal["TokenGenerated"]]):
     # TODO: replace with matt chunk code
diff --git a/shared/types/model.py b/shared/types/model.py
index b9b3fc8c..d0e11ed6 100644
--- a/shared/types/model.py
+++ b/shared/types/model.py
@@ -12,37 +12,40 @@ _ModelId = Annotated[UUID, UuidVersion(4)]
 ModelId = type("ModelId", (UUID,), {})
 ModelIdParser: TypeAdapter[ModelId] = TypeAdapter(_ModelId)
 
-RepoPath = Annotated[str, Field(pattern=r'^[^/]+/[^/]+$')]
+RepoPath = Annotated[str, Field(pattern=r"^[^/]+/[^/]+$")]
 RepoURL = Annotated[str, AnyHttpUrl]
 
+
 class BaseModelSource(BaseModel, Generic[T]):
     model_uuid: ModelId
     source_type: T
     source_data: Any
 
+
 @final
 class HuggingFaceModelSourceData(BaseModel):
     path: RepoPath
 
+
 @final
 class GitHubModelSourceData(BaseModel):
     url: AnyHttpUrl
 
+
 @final
 class HuggingFaceModelSource(BaseModelSource[Literal["HuggingFace"]]):
     source_type: Literal["HuggingFace"] = "HuggingFace"
     source_data: HuggingFaceModelSourceData
 
+
 @final
 class GitHubModelSource(BaseModelSource[Literal["GitHub"]]):
     source_type: Literal["GitHub"] = "GitHub"
     source_data: GitHubModelSourceData
 
+
 RepoType = BaseModelSource[SourceType]
 
-RepoValidatorThing = Annotated[
-    RepoType,
-    Field(discriminator="source_type")
-]
+RepoValidatorThing = Annotated[RepoType, Field(discriminator="source_type")]
 
 RepoValidator: TypeAdapter[RepoValidatorThing] = TypeAdapter(RepoValidatorThing)