diff --git a/desloppify/base/discovery/source.py b/desloppify/base/discovery/source.py
index 25e2ce93..d6da5f74 100644
--- a/desloppify/base/discovery/source.py
+++ b/desloppify/base/discovery/source.py
@@ -149,6 +149,13 @@ def collect_exclude_dirs(
         if "*" not in pat:
             patterns.add(pat)
     patterns.update(p for p in resolved_exclusions if p and "*" not in p)
+    # External tools (e.g. bandit) match --exclude against absolute walked paths,
+    # so a relative scan_root — commonpath is often Path(".") — would make every
+    # exclude silently match nothing. Anchor relative roots to an absolute path
+    # (matching the .resolve() bandit applies to its own scan target); leave
+    # already-absolute roots byte-stable so callers' paths are unchanged.
+    if not scan_root.is_absolute():
+        scan_root = scan_root.resolve()
     return [str(scan_root / p) for p in sorted(patterns) if p]
 
 
diff --git a/desloppify/tests/detectors/test_external_adapters.py b/desloppify/tests/detectors/test_external_adapters.py
index eb5aec35..cd0c44f8 100644
--- a/desloppify/tests/detectors/test_external_adapters.py
+++ b/desloppify/tests/detectors/test_external_adapters.py
@@ -1010,3 +1010,20 @@ def test_deduplicates(self, tmp_path):
             result = collect_exclude_dirs(tmp_path)
         node_entries = [p for p in result if p.endswith("/node_modules")]
         assert len(node_entries) == 1
+
+    def test_relative_scan_root_yields_absolute_paths(self):
+        """A relative scan_root must still yield absolute exclude dirs.
+
+        ``scan_root_from_files`` derives the root from ``os.path.commonpath``,
+        which is relative (often ``Path('.')``) when scanning with a relative
+        ``--path``. bandit matches ``--exclude`` against *absolute* walked paths,
+        so a relative entry like ``.worktrees`` silently excludes nothing — the
+        bug behind ~2000 phantom B101 findings from worktree copies.
+        """
+        with patch(
+            "desloppify.base.discovery.source.get_exclusions",
+            return_value=(".worktrees",),
+        ):
+            result = collect_exclude_dirs(Path("."))
+        assert all(Path(p).is_absolute() for p in result), result
+        assert any(p.endswith("/.worktrees") for p in result), result
diff --git a/desloppify/tests/lang/common/test_bash_unused_imports.py b/desloppify/tests/lang/common/test_bash_unused_imports.py
index c74dee94..d41cba21 100644
--- a/desloppify/tests/lang/common/test_bash_unused_imports.py
+++ b/desloppify/tests/lang/common/test_bash_unused_imports.py
@@ -4,6 +4,14 @@
 
 import textwrap
 
+import pytest
+
+from desloppify.languages._framework.treesitter import is_available
+
+pytestmark = pytest.mark.skipif(
+    not is_available(), reason="tree-sitter-language-pack not installed"
+)
+
 
 def _detect(tmp_path, contents: str):
     from desloppify.languages._framework.treesitter.analysis.unused_imports import (
diff --git a/desloppify/tests/review/review_commands_cases.py b/desloppify/tests/review/review_commands_cases.py
index 0158e4fd..2b9c0c2e 100644
--- a/desloppify/tests/review/review_commands_cases.py
+++ b/desloppify/tests/review/review_commands_cases.py
@@ -873,7 +873,10 @@ def test_do_run_batches_dry_run_generates_packet_and_prompts(
         assert len(packet_files) == 1
         blind_packet = tmp_path / ".desloppify" / "review_packet_blind.json"
         assert blind_packet.exists()
-        prompt_files = list(runs_dir.glob("*/prompts/batch-*.md"))
+        # Sort: prompt files are named batch-1.md, batch-2.md; glob order is
+        # filesystem-dependent (differs Linux vs macOS) and the assertions
+        # below assume batch-1 (high_level_elegance, with historical_focus) first.
+        prompt_files = sorted(runs_dir.glob("*/prompts/batch-*.md"))
         assert len(prompt_files) == 2
         prompt_text = prompt_files[0].read_text()
         assert "Blind packet:" in prompt_text