diff --git a/src/bernstein/core/persistence/journal.py b/src/bernstein/core/persistence/journal.py
index 556bff9c0..5ec5e6df7 100644
--- a/src/bernstein/core/persistence/journal.py
+++ b/src/bernstein/core/persistence/journal.py
@@ -206,7 +206,7 @@ def to_dict(self) -> dict[str, Any]:
             "tool_result": self.tool_result,
             "step_hash": self.step_hash,
             "ts": self.ts,
-            "blob_refs": list(self.blob_refs),
+            "blob_refs": self.blob_refs.copy(),
         }
 
     @classmethod
diff --git a/src/bernstein/core/persistence/journal_export.py b/src/bernstein/core/persistence/journal_export.py
index c0da974a4..eb0481441 100644
--- a/src/bernstein/core/persistence/journal_export.py
+++ b/src/bernstein/core/persistence/journal_export.py
@@ -91,7 +91,7 @@ def canonical_bytes(self) -> bytes:
             "steps": self.steps,
             "bernstein_version": self.bernstein_version,
             "created_at": self.created_at,
-            "blob_digests": list(self.blob_digests),
+            "blob_digests": self.blob_digests.copy(),
             "format_version": self.format_version,
         }
         return json.dumps(document, sort_keys=True, separators=(",", ":")).encode("utf-8")
@@ -105,7 +105,7 @@ def to_json(self) -> str:
                 "steps": self.steps,
                 "bernstein_version": self.bernstein_version,
                 "created_at": self.created_at,
-                "blob_digests": list(self.blob_digests),
+                "blob_digests": self.blob_digests.copy(),
                 "format_version": self.format_version,
             },
             sort_keys=True,
@@ -472,6 +472,7 @@ def open_receipt(receipt_path: Path):  # type: ignore[no-untyped-def]
 __all__ = [
     "MANIFEST_NAME",
     "ExportResult",
+    "JournalError",
     "ReceiptError",
     "ReceiptManifest",
     "ReceiptVerificationResult",
@@ -479,7 +480,3 @@ def open_receipt(receipt_path: Path):  # type: ignore[no-untyped-def]
     "open_receipt",
     "verify_receipt",
 ]
-
-
-# Re-export so callers don't need a separate journal import for the symbol.
-JournalError = JournalError
diff --git a/src/bernstein/core/persistence/journal_publish.py b/src/bernstein/core/persistence/journal_publish.py
index f8b08d62e..606d895ab 100644
--- a/src/bernstein/core/persistence/journal_publish.py
+++ b/src/bernstein/core/persistence/journal_publish.py
@@ -133,7 +133,7 @@ def _redact_value(value: Any) -> Any:
 
 def _redact_row(row: dict[str, Any], policy: RedactionPolicy) -> dict[str, Any]:
     """Return a copy of *row* with redaction policy applied."""
-    redacted = dict(row)
+    redacted = row.copy()
     for field_name in policy.redact_fields:
         if field_name in redacted:
             redacted[field_name] = _redact_value(redacted[field_name])
diff --git a/src/bernstein/core/persistence/lineage_signer.py b/src/bernstein/core/persistence/lineage_signer.py
index b1fd793aa..f3db648db 100644
--- a/src/bernstein/core/persistence/lineage_signer.py
+++ b/src/bernstein/core/persistence/lineage_signer.py
@@ -220,7 +220,7 @@ def register_attachment_parents(
         A new list with attachment parents appended.
     """
     seen: set[str] = set(parents)
-    out: list[str] = list(parents)
+    out: list[str] = parents.copy()
     for digest in attachment_sha256s:
         uri = build_attachment_parent_uri(digest)
         if uri not in seen:
diff --git a/src/bernstein/eval/incident_synthesizer.py b/src/bernstein/eval/incident_synthesizer.py
index 4ab05de6a..516bdb225 100644
--- a/src/bernstein/eval/incident_synthesizer.py
+++ b/src/bernstein/eval/incident_synthesizer.py
@@ -753,7 +753,7 @@ def _source_incident_from_yaml(path: Path) -> str:
         for line in path.read_text(encoding="utf-8").splitlines():
             if line.startswith("source_incident:"):
                 raw = line.split(":", 1)[1].strip()
-                if len(raw) >= 2 and raw[0] == '"' and raw[-1] == '"':
+                if len(raw) >= 2 and raw[0] == '"' == raw[-1]:
                     raw = raw[1:-1].replace('\\"', '"').replace("\\\\", "\\")
                 return raw
     except OSError:
diff --git a/tests/unit/test_journal_chain.py b/tests/unit/test_journal_chain.py
index 8dfe1b03b..56055bd27 100644
--- a/tests/unit/test_journal_chain.py
+++ b/tests/unit/test_journal_chain.py
@@ -454,7 +454,7 @@ def test_journal_path_default_is_runtime_journal(self, tmp_path: Path) -> None:
         # Single bucket file by default.
         files = list(agent_dir.glob("*.jsonl"))
         assert len(files) == 1
-        # File mode is owner-writeable; on POSIX must not be group/world-writable.
+        # File mode is owner-writable; on POSIX must not be group/world-writable.
         if os.name == "posix":
             mode = files[0].stat().st_mode & 0o777
             assert (mode & 0o022) == 0, f"unsafe mode {oct(mode)}"
diff --git a/tests/unit/test_readme_api_coverage.py b/tests/unit/test_readme_api_coverage.py
index fa6b08a62..90b3d71d2 100644
--- a/tests/unit/test_readme_api_coverage.py
+++ b/tests/unit/test_readme_api_coverage.py
@@ -239,6 +239,8 @@
         "desktop-register",
         # Bot-added: drift autofix (regen_contract_drift.py)
         "supervisor",
+        # Bot-added: drift autofix (regen_contract_drift.py)
+        "schedule",
     }
 )