diff --git a/snakebids/tests/test_generate_inputs.py b/snakebids/tests/test_generate_inputs.py
index 8bce626e..0ad24ca8 100644
--- a/snakebids/tests/test_generate_inputs.py
+++ b/snakebids/tests/test_generate_inputs.py
@@ -13,7 +13,7 @@
 import warnings
 from collections import defaultdict
 from pathlib import Path
-from typing import Iterable, Literal, NamedTuple, TypedDict, TypeVar, cast
+from typing import Any, Iterable, Literal, NamedTuple, TypedDict, TypeVar, cast
 
 import attrs
 import more_itertools as itx
@@ -25,7 +25,7 @@
 from pytest_mock import MockerFixture
 from snakemake.io import expand as sb_expand
 
-from snakebids.core._querying import PostFilter, UnifiedFilter
+from snakebids.core._querying import PostFilter, UnifiedFilter, get_matching_files
 from snakebids.core.datasets import BidsComponent, BidsDataset
 from snakebids.core.input_generation import (
     _all_custom_paths,
@@ -36,7 +36,7 @@
     _parse_custom_path,
     generate_inputs,
 )
-from snakebids.exceptions import ConfigError, RunError
+from snakebids.exceptions import ConfigError, PybidsError, RunError
 from snakebids.paths.presets import bids
 from snakebids.tests import strategies as sb_st
 from snakebids.tests.helpers import (
@@ -163,6 +163,28 @@ def test_non_deprecated_text_in_reset_raises_error(self, pybidsdb_reset: bool):
             _normalize_database_args(None, pybidsdb_reset, None, None)
 
 
+def test_regex_search_removed_from_filters():
+    assert not len(UnifiedFilter.from_filter_dict({"regex_search": "foo"}).prefilters)
+
+
+@given(
+    filters=st.dictionaries(st.text(), st.text() | st.booleans() | st.lists(st.text()))
+)
+def test_get_matching_files_skips_get_when_empty_prefilter(filters: dict[str, Any]):
+    assert (
+        get_matching_files(
+            ...,  # type: ignore
+            UnifiedFilter.from_filter_dict({**filters, "foo": []}),
+        )
+        == []
+    )
+
+
+def test_attribute_errors_from_pybids_qualified_and_raised():
+    with pytest.raises(PybidsError, match="Pybids has encountered a problem"):
+        get_matching_files(..., UnifiedFilter.from_filter_dict({}))  # type: ignore
+
+
 class TestFilterBools:
     @pytest.fixture(autouse=True)
     def bids_fs(self, bids_fs: FakeFilesystem | None):
@@ -1105,6 +1127,29 @@ def test_collect_all_but_filters_when_exclusion_filters_used(
             name="foo", path=get_bids_path(result_excluded), zip_lists=result_excluded
         )
 
+    @given(
+        boolean=st.booleans(),
+        filter=st.none() | st.lists(st.text()),
+        path_entities=path_entities(),
+    )
+    @allow_function_scoped
+    def test_errors_when_bools_given_as_filters(
+        self,
+        temp_dir: Path,
+        path_entities: PathEntities,
+        boolean: bool,
+        filter: list[str] | None,
+    ):
+        entities, template, _ = path_entities
+        test_path = self.generate_test_directory(entities, template, temp_dir)
+        with pytest.raises(ValueError, match="Boolean filters in items with custom "):
+            _parse_custom_path(
+                test_path,
+                UnifiedFilter.from_filter_dict(
+                    {"foo": boolean if filter is None else [*filter, boolean]}
+                ),
+            )
+
 
 def test_custom_pybids_config(tmpdir: Path):
     # Generate directory
diff --git a/snakebids/utils/utils.py b/snakebids/utils/utils.py
index 62b98f93..199c7ff0 100644
--- a/snakebids/utils/utils.py
+++ b/snakebids/utils/utils.py
@@ -239,7 +239,7 @@ def __init__(self, path: str, entity: BidsEntity) -> None:
 
 
 class _Documented(Protocol):
-    __doc__: str  # noqa: A003
+    __doc__: str
 
 
 def property_alias(