diff --git a/src/skillspector/cli.py b/src/skillspector/cli.py
index 57bac058..34a4b9f1 100644
--- a/src/skillspector/cli.py
+++ b/src/skillspector/cli.py
@@ -177,7 +177,7 @@ def scan(
         typer.Option(
             "--recursive",
             "-r",
-            help="Scan directories containing multiple skills (immediate subdirectories with SKILL.md) independently.",
+            help="Scan immediate subdirectories that each contain a SKILL.md as independent skills.",
         ),
     ] = False,
     verbose: Annotated[
diff --git a/src/skillspector/nodes/analyzers/static_runner.py b/src/skillspector/nodes/analyzers/static_runner.py
index ee0d50fb..a32c6c4c 100644
--- a/src/skillspector/nodes/analyzers/static_runner.py
+++ b/src/skillspector/nodes/analyzers/static_runner.py
@@ -84,7 +84,7 @@ def _is_eval_dataset(path: str) -> bool:
 _DOCUMENTATION_CONFIDENCE_FACTOR = 0.3
 _CODE_EXAMPLE_CONFIDENCE_FACTOR = 0.5
 
-_NON_EXECUTABLE_FILE_TYPES = frozenset({"markdown", "text", "json", "yaml", "toml", "other"})
+_NON_EXECUTABLE_FILE_TYPES = frozenset({"markdown", "text", "json", "yaml", "toml"})
 
 
 def _is_documentation_markdown(path: str) -> bool:
diff --git a/src/skillspector/nodes/meta_analyzer.py b/src/skillspector/nodes/meta_analyzer.py
index c5268375..93c15b50 100644
--- a/src/skillspector/nodes/meta_analyzer.py
+++ b/src/skillspector/nodes/meta_analyzer.py
@@ -236,7 +236,7 @@ def _fallback_filtered(findings: list[Finding]) -> list[Finding]:
 
     result: list[Finding] = []
     for f in findings:
-        severity_upper = f.severity.upper()
+        severity_upper = (f.severity or "LOW").upper()
         confidence = f.confidence
         if f.context and is_code_example(f.context):
             confidence *= _CODE_EXAMPLE_DOWNWEIGHT
diff --git a/tests/nodes/analyzers/test_static_runner_filtering.py b/tests/nodes/analyzers/test_static_runner_filtering.py
index 207c6cba..33f82e2d 100644
--- a/tests/nodes/analyzers/test_static_runner_filtering.py
+++ b/tests/nodes/analyzers/test_static_runner_filtering.py
@@ -115,6 +115,23 @@ def test_finding_in_executable_not_dropped_by_generic_indicator(self) -> None:
         for f in tm1_findings:
             assert f.confidence > 0
 
+    def test_extensionless_file_not_hard_dropped_by_code_example(self) -> None:
+        """An extensionless file (inferred as 'other') in code-example context is downweighted, not dropped."""
+        content = """\
+#!/bin/bash
+# Example: cleanup old builds
+rm -rf /tmp/build-cache
+"""
+        state = {
+            "components": ["cleanup_script"],
+            "file_cache": {"cleanup_script": content},
+        }
+        findings = static_runner.run_static_patterns(state, [tm_module])
+        tm1_findings = [f for f in findings if f.rule_id == "TM1"]
+        assert len(tm1_findings) >= 1, (
+            "Extensionless files must not have code-example findings hard-dropped"
+        )
+
     def test_skill_md_findings_are_not_filtered_by_backticks(self) -> None:
         """SKILL.md is the primary instruction file — backticks alone shouldn't filter."""
         content = """\
diff --git a/tests/nodes/test_meta_analyzer_fallback.py b/tests/nodes/test_meta_analyzer_fallback.py
index 130d4e0a..7da27a0a 100644
--- a/tests/nodes/test_meta_analyzer_fallback.py
+++ b/tests/nodes/test_meta_analyzer_fallback.py
@@ -99,6 +99,19 @@ def test_low_severity_below_threshold_still_dropped(self) -> None:
         assert len(result) == 0
 
 
+    def test_none_severity_treated_as_low(self) -> None:
+        """Finding with None severity does not crash — treated as LOW."""
+        findings = [_finding(confidence=0.8, severity=None)]
+        result = _fallback_filtered(findings)
+        assert len(result) == 1
+
+    def test_none_severity_below_threshold_dropped(self) -> None:
+        """None severity at low confidence is dropped (no severity floor protection)."""
+        findings = [_finding(confidence=0.3, severity=None)]
+        result = _fallback_filtered(findings)
+        assert len(result) == 0
+
+
 class TestCodeExampleFiltering:
     """Findings in code example context are downweighted, not hard-dropped."""