diff --git a/tests/git-manager/git_cmd.bats b/tests/git-manager/git_cmd.bats
index 71cf848..ccf5ce1 100644
--- a/tests/git-manager/git_cmd.bats
+++ b/tests/git-manager/git_cmd.bats
@@ -109,6 +109,23 @@ setup() {
   [[ "$output" == *"== Repo: $REPO =="* ]]
 }
 
+@test "a registered path that is a file, not a directory, errors" {
+  FILE_PATH="$BATS_TEST_TMPDIR/not-a-dir"
+  echo "just a file" > "$FILE_PATH"
+  write_git_manager_config "$CONFIG_FILE" "plain=$FILE_PATH"
+  run "$SCRIPT" status --repo plain
+  [ "$status" -eq 1 ]
+  [[ "$output" == *"is not a directory"* ]]
+}
+
+@test "missing python3 fails with a clear error instead of a silent crash" {
+  write_git_manager_config "$CONFIG_FILE" "myrepo=$REPO"
+  hide_command python3
+  run "$SCRIPT" status --repo myrepo
+  [ "$status" -eq 1 ]
+  [[ "$output" == *"python3 is required"* ]]
+}
+
 # --- -- passthrough ---
 
 @test "args after -- reach git unmodified" {
diff --git a/tests/obsidian-vault-kb/vault_index.bats b/tests/obsidian-vault-kb/vault_index.bats
index 5bb5ad4..1920e13 100644
--- a/tests/obsidian-vault-kb/vault_index.bats
+++ b/tests/obsidian-vault-kb/vault_index.bats
@@ -34,6 +34,15 @@ setup() {
   done
 }
 
+@test "grep fallback still extracts tags when rg is unavailable" {
+  hide_command rg
+  run "$SCRIPT" v
+  [ "$status" -eq 0 ]
+  for tag in dns homelab networking overview; do
+    [[ "$output" == *"$tag"* ]]
+  done
+}
+
 @test "a note matching *overview* is flagged as a possible MOC file" {
   run "$SCRIPT" v
   [ "$status" -eq 0 ]