From e890c57a2b6e6ae2bdff429775c1303ec754e722 Mon Sep 17 00:00:00 2001
From: Teknium <127238744+teknium1@users.noreply.github.com>
Date: Wed, 2 Sep 2026 19:29:01 -0700
Subject: [PATCH] =?UTF-8?q?refactor(gateway):=20session=20=E2=80=94=20fold?=
 =?UTF-8?q?=20short=20multi-line=20signatures/calls?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 gateway/session.py             | 14 +++-----------
 gateway/session_lifecycle.py   |  5 +----
 gateway/session_persistence.py |  9 ++-------
 gateway/session_transcript.py  |  8 ++------
 4 files changed, 8 insertions(+), 28 deletions(-)

diff --git a/gateway/session.py b/gateway/session.py
index 24e688de70..d2d87f066d 100644
--- a/gateway/session.py
+++ b/gateway/session.py
@@ -404,11 +404,7 @@ _PLATFORM_NOTES = {
 }
 
 
-def build_session_context_prompt(
-    context: SessionContext,
-    *,
-    redact_pii: bool = False,
-) -> str:
+def build_session_context_prompt(context: SessionContext, *, redact_pii: bool = False) -> str:
     """Build the "Current Session Context" system prompt section.
 
     With *redact_pii* and a PII-safe platform (builtin set or plugin registry
@@ -675,10 +671,7 @@ class SessionEntry:
         )
 
 
-def build_channel_continuity_note(
-    entry: "SessionEntry",
-    source: SessionSource,
-) -> Optional[str]:
+def build_channel_continuity_note(entry: "SessionEntry", source: SessionSource) -> Optional[str]:
     """One-line continuity hint for long-lived Slack/Discord channels/threads.
 
     After an auto-reset the agent could bind a new request to an unrelated
@@ -867,8 +860,7 @@ class SessionStore(
     """Session storage/retrieval: SQLite (SessionDB) for metadata and
     transcripts, legacy JSONL fallback when SQLite is unavailable."""
 
-    def __init__(self, sessions_dir: Path, config: GatewayConfig,
-                 has_active_processes_fn=None):
+    def __init__(self, sessions_dir: Path, config: GatewayConfig, has_active_processes_fn=None):
         self.sessions_dir = sessions_dir
         self.config = config
         self._entries: Dict[str, SessionEntry] = {}
diff --git a/gateway/session_lifecycle.py b/gateway/session_lifecycle.py
index 287b5126a5..0a77992e10 100644
--- a/gateway/session_lifecycle.py
+++ b/gateway/session_lifecycle.py
@@ -263,10 +263,7 @@ class SessionLifecycleMixin:
             self._set_turn_marker_locked(session_key, entry, None, None)
         return True
 
-    def recover_interrupted_turns(
-        self,
-        max_age_seconds: int = 60 * 60,
-    ) -> int:
+    def recover_interrupted_turns(self, max_age_seconds: int = 60 * 60) -> int:
         """Promote crash-left turn markers into ``resume_pending`` (unclean startup only).
 
         Old/invalid markers are cleared without resuming; suspended sessions
diff --git a/gateway/session_persistence.py b/gateway/session_persistence.py
index 96adecd8eb..220debd355 100644
--- a/gateway/session_persistence.py
+++ b/gateway/session_persistence.py
@@ -302,9 +302,7 @@ class SessionPersistenceMixin:
 
         self._loaded = True
         self._routing_db_loaded = db_load_succeeded
-        self._routing_fallback_baseline = (
-            None if db_load_succeeded else self._entries_as_dicts()
-        )
+        self._routing_fallback_baseline = None if db_load_succeeded else self._entries_as_dicts()
 
         # A hard crash skips graceful shutdown and leaves sessions.json
         # pointing at ended sessions; self-heal before the first message.
@@ -374,10 +372,7 @@ class SessionPersistenceMixin:
                     self._entries[key] = verdict
                     recovered_keys += 1
         except Exception as exc:
-            logger.warning(
-                "gateway.session: stale-entry pruning skipped due to DB error: %s",
-                exc,
-            )
+            logger.warning("gateway.session: stale-entry pruning skipped due to DB error: %s", exc)
             return
 
         for key in stale_keys:
diff --git a/gateway/session_transcript.py b/gateway/session_transcript.py
index 14af7b9ac7..fe97425c2e 100644
--- a/gateway/session_transcript.py
+++ b/gateway/session_transcript.py
@@ -255,9 +255,7 @@ class SessionTranscriptMixin:
         if _hints:
             _hints.pop(child_id, None)
 
-    def _append_to_transcript_serialized(
-        self, session_id: str, message: Dict[str, Any]
-    ) -> None:
+    def _append_to_transcript_serialized(self, session_id: str, message: Dict[str, Any]) -> None:
         """Append a message to a session's transcript (SQLite), draining the
         per-session retry queue."""
         with self._transcript_retry_lock:
@@ -461,9 +459,7 @@ class SessionTranscriptMixin:
             self._dirty_transcripts.pop(session_id, None)
             self._transcript_append_failures.pop(session_id, None)
 
-    def has_platform_message_id(
-        self, session_id: str, platform_message_id: str
-    ) -> bool:
+    def has_platform_message_id(self, session_id: str, platform_message_id: str) -> bool:
         """Whether a message with this platform_message_id is persisted (False without a DB)."""
         db = self._db_for_session_id(session_id)
         if not db: