diff --git a/scripts/wine_env.py b/scripts/wine_env.py
index 10b4d68..5a1e419 100644
--- a/scripts/wine_env.py
+++ b/scripts/wine_env.py
@@ -187,10 +187,7 @@ def ensure_windows_uv(layout: WineLayout) -> None:
         return
     print(f"Fetching Windows uv {layout.win_uv_version} ...", file=sys.stderr)
     layout.bin_dir.mkdir(parents=True, exist_ok=True)
-    url = (
-        f"https://github.com/astral-sh/uv/releases/download/"
-        f"{layout.win_uv_version}/uv-x86_64-pc-windows-msvc.zip"
-    )
+    url = f"https://github.com/astral-sh/uv/releases/download/{layout.win_uv_version}/uv-x86_64-pc-windows-msvc.zip"
     zip_path = layout.bin_dir / "uv.zip"
     _ = urlretrieve(url, zip_path)
     with zipfile.ZipFile(zip_path) as zf:
@@ -283,9 +280,7 @@ def find_project_venv_scripts(layout: WineLayout) -> Path | None:
     users = layout.prefix / "drive_c" / "users"
     if not users.is_dir():
         return None
-    matches = sorted(
-        p for p in users.glob("**/pdm/pdm/venvs/project-view-*/Scripts") if p.is_dir()
-    )
+    matches = sorted(p for p in users.glob("**/pdm/pdm/venvs/project-view-*/Scripts") if p.is_dir())
     return matches[-1] if matches else None
 
 
diff --git a/src/plyngent/agent/__init__.py b/src/plyngent/agent/__init__.py
index 21db963..58eebe6 100644
--- a/src/plyngent/agent/__init__.py
+++ b/src/plyngent/agent/__init__.py
@@ -2,8 +2,6 @@ from .chat import ChatAgent as ChatAgent
 from .client import ChatClient as ChatClient
 from .compact import build_compacted_seed_messages as build_compacted_seed_messages
 from .compact import summarize_messages as summarize_messages
-from .responses_client import ResponsesChatClient as ResponsesChatClient
-from .responses_client import wrap_openai_for_agent as wrap_openai_for_agent
 from .events import AgentEvent as AgentEvent
 from .events import AssistantMessageEvent as AssistantMessageEvent
 from .events import CancelledEvent as CancelledEvent
@@ -16,6 +14,8 @@ from .events import ToolResultEvent as ToolResultEvent
 from .events import UsageEvent as UsageEvent
 from .loop import DEFAULT_MAX_ROUNDS as DEFAULT_MAX_ROUNDS
 from .loop import run_chat_loop as run_chat_loop
+from .responses_client import ResponsesChatClient as ResponsesChatClient
+from .responses_client import wrap_openai_for_agent as wrap_openai_for_agent
 from .tools import DangerClassifier as DangerClassifier
 from .tools import ToolConfirmHook as ToolConfirmHook
 from .tools import ToolDefinition as ToolDefinition
diff --git a/src/plyngent/agent/responses_client.py b/src/plyngent/agent/responses_client.py
index 20e3dfe..4d7b08a 100644
--- a/src/plyngent/agent/responses_client.py
+++ b/src/plyngent/agent/responses_client.py
@@ -87,10 +87,15 @@ class ResponsesChatClient:
             if etype == "response.output_text.delta" and isinstance(event.delta, str) and event.delta:
                 yield text_delta_chunk(model=model, content=event.delta)
                 continue
-            if etype in {
-                "response.reasoning_summary_text.delta",
-                "response.reasoning_text.delta",
-            } and isinstance(event.delta, str) and event.delta:
+            if (
+                etype
+                in {
+                    "response.reasoning_summary_text.delta",
+                    "response.reasoning_text.delta",
+                }
+                and isinstance(event.delta, str)
+                and event.delta
+            ):
                 yield reasoning_delta_chunk(model=model, content=event.delta)
                 continue
             if etype == "response.completed" and event.response is not UNSET:
@@ -101,7 +106,7 @@ class ResponsesChatClient:
 
                 try:
                     final = msgspec.convert(event.response, ResponseModel)
-                except (TypeError, ValueError, msgspec.ValidationError):
+                except TypeError, ValueError, msgspec.ValidationError:
                     final = None
 
         if final is not None:
diff --git a/src/plyngent/cli/app.py b/src/plyngent/cli/app.py
index e3e318b..fe9831c 100644
--- a/src/plyngent/cli/app.py
+++ b/src/plyngent/cli/app.py
@@ -74,8 +74,7 @@ def _warn_recoverable_providers(recoverable: Mapping[str, object]) -> None:
         return
     names = ", ".join(sorted(recoverable.keys()))
     click.secho(
-        f"warning: providers with empty models ({len(recoverable)}): {names} "
-        f"(will try GET /models or --model on use)",
+        f"warning: providers with empty models ({len(recoverable)}): {names} (will try GET /models or --model on use)",
         fg="yellow",
         err=True,
     )
diff --git a/src/plyngent/cli/provider_recovery.py b/src/plyngent/cli/provider_recovery.py
index fac47a8..c968f4c 100644
--- a/src/plyngent/cli/provider_recovery.py
+++ b/src/plyngent/cli/provider_recovery.py
@@ -22,7 +22,7 @@ async def discover_model_ids(provider: Provider) -> list[str]:
         return []
     try:
         return await fetch_remote_model_ids(client)
-    except (RuntimeError, TypeError, OSError, ValueError):
+    except RuntimeError, TypeError, OSError, ValueError:
         return []
 
 
@@ -79,8 +79,7 @@ async def ensure_provider_ready(
     promoted = await try_promote_provider(store, name, seed_model_ids=seeds or None)
     if promoted is not None:
         click.secho(
-            f"recovered provider {name!r} with {len(promoted.models)} model(s) "
-            f"(was empty models in config)",
+            f"recovered provider {name!r} with {len(promoted.models)} model(s) (was empty models in config)",
             fg="yellow",
             err=True,
         )
@@ -110,8 +109,5 @@ async def ensure_provider_ready(
         )
         return promoted
 
-    msg = (
-        f"provider {name!r} has empty models and could not be recovered "
-        f"(pass --model or fix GET /models)"
-    )
+    msg = f"provider {name!r} has empty models and could not be recovered (pass --model or fix GET /models)"
     raise click.ClickException(msg)
diff --git a/src/plyngent/cli/slash.py b/src/plyngent/cli/slash.py
index 3c345e5..1bb48dc 100644
--- a/src/plyngent/cli/slash.py
+++ b/src/plyngent/cli/slash.py
@@ -655,8 +655,7 @@ def models_cmd(state: ReplState, *, refresh: bool) -> None:
         click.secho(f"remote list unavailable: {remote_err}", fg="yellow", err=True)
     elif remote is not None:
         click.echo(
-            f"({len(remote)} remote, {len(config_ids)} config; "
-            f"cache TTL {int(DEFAULT_MODELS_CACHE_TTL)}s)",
+            f"({len(remote)} remote, {len(config_ids)} config; cache TTL {int(DEFAULT_MODELS_CACHE_TTL)}s)",
             err=True,
         )
 
diff --git a/src/plyngent/cli/state.py b/src/plyngent/cli/state.py
index 9d7dd38..44765c3 100644
--- a/src/plyngent/cli/state.py
+++ b/src/plyngent/cli/state.py
@@ -185,7 +185,7 @@ class ReplState:
         remote: list[str] | None
         try:
             remote = await self.ensure_remote_models(refresh=refresh)
-        except (RuntimeError, TypeError, OSError, ValueError):
+        except RuntimeError, TypeError, OSError, ValueError:
             remote = self.cached_remote_models()
         return model_choices_for_provider(self.provider, remote_ids=remote)
 
@@ -269,13 +269,13 @@ class ReplState:
                 preferred=pname,
                 interactive=False,
             )
-        except (click.ClickException, ProviderNotSupportedError):
+        except click.ClickException, ProviderNotSupportedError:
             return False
         # Session resume: seed empty recoverable with remembered model if any.
         if not provider.models and self.model:
             try:
                 provider = self.config.promote_provider(name, [self.model])
-            except (KeyError, ValueError):
+            except KeyError, ValueError:
                 return False
         if name != self.provider_name or provider is not self.provider:
             self.provider_name = name
diff --git a/src/plyngent/lmproto/openai/client.py b/src/plyngent/lmproto/openai/client.py
index 03b6430..9b80296 100644
--- a/src/plyngent/lmproto/openai/client.py
+++ b/src/plyngent/lmproto/openai/client.py
@@ -66,9 +66,7 @@ class OpenAIClient(BaseOpenAIClient):
         return self.decoder.decode(body)
 
     @overload
-    async def responses(
-        self, param: ResponsesCreateParam, *, stream: Literal[False] = False
-    ) -> Response: ...
+    async def responses(self, param: ResponsesCreateParam, *, stream: Literal[False] = False) -> Response: ...
 
     @overload
     async def responses(
diff --git a/src/plyngent/lmproto/openai/model.py b/src/plyngent/lmproto/openai/model.py
index b24637a..661c47f 100644
--- a/src/plyngent/lmproto/openai/model.py
+++ b/src/plyngent/lmproto/openai/model.py
@@ -316,7 +316,7 @@ def response_function_calls(response: Response) -> list[ResponseFunctionToolCall
             continue
         try:
             result.append(msgspec_convert_function_call(raw))
-        except (TypeError, ValueError, KeyError, msgspec.ValidationError):
+        except TypeError, ValueError, KeyError, msgspec.ValidationError:
             continue
     return result
 
diff --git a/src/plyngent/runtime/client_factory.py b/src/plyngent/runtime/client_factory.py
index 90ed1fe..677b0e3 100644
--- a/src/plyngent/runtime/client_factory.py
+++ b/src/plyngent/runtime/client_factory.py
@@ -20,9 +20,7 @@ if TYPE_CHECKING:
 DEFAULT_OPENAI_BASE_URL = "https://api.openai.com/v1"
 DEFAULT_DEEPSEEK_BASE_URL = "https://api.deepseek.com"
 
-type ProtocolClient = (
-    OpenAIClient | OpenAICompatibleClient | DeepseekOpenAIClient | ResponsesChatClient
-)
+type ProtocolClient = OpenAIClient | OpenAICompatibleClient | DeepseekOpenAIClient | ResponsesChatClient
 # Backward-compatible name used by older imports/tests.
 type OpenAICompatibleClientUnion = ProtocolClient
 
diff --git a/src/plyngent/tools/process/pty_backend.py b/src/plyngent/tools/process/pty_backend.py
index 7eb0a81..f3941fe 100644
--- a/src/plyngent/tools/process/pty_backend.py
+++ b/src/plyngent/tools/process/pty_backend.py
@@ -97,7 +97,7 @@ class PosixPtyHandle:
             ready, _, _ = select.select([self.master_fd], [], [], timeout)
             if ready:
                 data = os.read(self.master_fd, max_bytes)
-        except (OSError, ValueError):
+        except OSError, ValueError:
             data = b""
         _ = self.poll_exit()
         return data
diff --git a/tests/test_lmproto/test_models.py b/tests/test_lmproto/test_models.py
index 01a53d8..26a0223 100644
--- a/tests/test_lmproto/test_models.py
+++ b/tests/test_lmproto/test_models.py
@@ -24,11 +24,7 @@ async def test_client_models_sorted_unique(monkeypatch: pytest.MonkeyPatch) -> N
 
         @property
         def content(self) -> bytes:
-            return (
-                b'{"object":"list","data":['
-                b'{"id":"m2"},{"id":"m1"},{"id":"m2"},{"id":""}'
-                b"]}"
-            )
+            return b'{"object":"list","data":[{"id":"m2"},{"id":"m1"},{"id":"m2"},{"id":""}]}'
 
     async def fake_get(path: str, **kwargs: object) -> _Resp:
         assert path == "/models"
diff --git a/tests/test_lmproto/test_responses.py b/tests/test_lmproto/test_responses.py
index a3c4d38..8fe4e16 100644
--- a/tests/test_lmproto/test_responses.py
+++ b/tests/test_lmproto/test_responses.py
@@ -59,10 +59,7 @@ def test_create_param_encode_omits_defaults() -> None:
 
 
 def test_stream_event_decode() -> None:
-    raw = (
-        b'{"type":"response.output_text.delta","item_id":"msg_1",'
-        b'"output_index":0,"content_index":0,"delta":"hel"}'
-    )
+    raw = b'{"type":"response.output_text.delta","item_id":"msg_1","output_index":0,"content_index":0,"delta":"hel"}'
     event = msgspec.json.decode(raw, type=ResponseStreamEvent)
     assert event.type == "response.output_text.delta"
     assert event.delta == "hel"