diff --git a/plugins/core/.apm/skills/provider-adapter-author/tests/validate-adapter.bats b/plugins/core/.apm/skills/provider-adapter-author/tests/validate-adapter.bats
index 2204e35..4fb5f37 100644
--- a/plugins/core/.apm/skills/provider-adapter-author/tests/validate-adapter.bats
+++ b/plugins/core/.apm/skills/provider-adapter-author/tests/validate-adapter.bats
@@ -298,14 +298,14 @@ EOF
 
 @test "a doubled UTF-8 BOM does not hide the @import line" {
     ADAPTER="$TMPDIR/CLAUDE.md"
-    python3 -c "import sys; open(sys.argv[1], 'wb').write(('@AGENTS.md\n').encode('utf-8'))" "$ADAPTER"
+    python3 -c "import sys; open(sys.argv[1], 'wb').write(('\ufeff\ufeff@AGENTS.md\n').encode('utf-8'))" "$ADAPTER"
     run bash "$SCRIPT" "$ADAPTER" "$AGENTS_MD"
     assert_success
 }
 
 @test "a BOM in front of a mid-file @import line does not hide it" {
     ADAPTER="$TMPDIR/CLAUDE.md"
-    python3 -c "import sys; open(sys.argv[1], 'wb').write(('# Claude notes\n\n@AGENTS.md\n').encode('utf-8'))" "$ADAPTER"
+    python3 -c "import sys; open(sys.argv[1], 'wb').write(('# Claude notes\n\n\ufeff@AGENTS.md\n').encode('utf-8'))" "$ADAPTER"
     run bash "$SCRIPT" "$ADAPTER" "$AGENTS_MD"
     assert_success
 }
diff --git a/plugins/kyberforge/.apm/skills/factory-audit/scripts/lib-boundary-resolver.sh b/plugins/kyberforge/.apm/skills/factory-audit/scripts/lib-boundary-resolver.sh
index cf099e8..d4a1ecd 100755
--- a/plugins/kyberforge/.apm/skills/factory-audit/scripts/lib-boundary-resolver.sh
+++ b/plugins/kyberforge/.apm/skills/factory-audit/scripts/lib-boundary-resolver.sh
@@ -1016,7 +1016,7 @@ FRONTMATTER_RE = re.compile(
 
 
 def strip_bom(text):
-    return text[1:] if text.startswith(u'') else text
+    return text[1:] if text.startswith(u'\ufeff') else text
 
 
 class FrontmatterError(Exception):