diff --git a/bin/omarchy-cn-ai-default b/bin/omarchy-cn-ai-default
index 9553fc83..c2927ab8 100755
--- a/bin/omarchy-cn-ai-default
+++ b/bin/omarchy-cn-ai-default
@@ -30,7 +30,7 @@ codex) agent="codex" ;;
 esac
 
 command=$(cn_ai_harness_field "$harness" command)
-if ! command -v "$command" > /dev/null 2>&1; then
+if omarchy-cmd-missing "$command"; then
   install=$(cn_ai_harness_field "$harness" install)
   echo "Installing $harness: $install"
   $install
diff --git a/bin/omarchy-cn-ai-doctor b/bin/omarchy-cn-ai-doctor
index 29fe27ab..d8533a83 100755
--- a/bin/omarchy-cn-ai-doctor
+++ b/bin/omarchy-cn-ai-doctor
@@ -25,7 +25,7 @@ provider=$(cn_ai_profile_field "$profile" provider)
 command=$(cn_ai_harness_field "$harness" command)
 proto=$(cn_ai_harness_field "$harness" protocol)
 
-if command -v "$command" > /dev/null 2>&1; then
+if omarchy-cmd-present "$command"; then
   echo "PASS ai: harness $harness installed ($command)"
 else
   install=$(cn_ai_harness_field "$harness" install)
diff --git a/bin/omarchy-cn-ai-launch b/bin/omarchy-cn-ai-launch
index 114a688a..4ce827b4 100755
--- a/bin/omarchy-cn-ai-launch
+++ b/bin/omarchy-cn-ai-launch
@@ -20,7 +20,7 @@ model=$(cn_ai_profile_field "$profile" model)
 command=$(cn_ai_harness_field "$harness" command)
 config_method=$(cn_ai_harness_field "$harness" config_method)
 
-if ! command -v "$command" > /dev/null 2>&1; then
+if omarchy-cmd-missing "$command"; then
   install=$(cn_ai_harness_field "$harness" install)
   if [[ $install == doc:* ]]; then
     echo "$harness 未安装，安装方法见官方文档: ${install#doc:}" >&2
diff --git a/bin/omarchy-cn-ai-secret b/bin/omarchy-cn-ai-secret
index e151eeb7..43bb21ca 100755
--- a/bin/omarchy-cn-ai-secret
+++ b/bin/omarchy-cn-ai-secret
@@ -17,11 +17,11 @@ FILE_DIR="$HOME/.local/state/omarchycn/secrets"
 FILE_PATH="$FILE_DIR/$provider"
 
 secret_service_ok() {
-  command -v secret-tool > /dev/null 2>&1 && secret-tool search service omarchycn > /dev/null 2>&1
+  omarchy-cmd-present secret-tool && secret-tool search service omarchycn > /dev/null 2>&1
 }
 
 pass_ok() {
-  command -v pass > /dev/null 2>&1 && pass ls > /dev/null 2>&1
+  omarchy-cmd-present pass && pass ls > /dev/null 2>&1
 }
 
 case "$action" in
@@ -87,7 +87,7 @@ rm)
     rm -f "$FILE_PATH"
     removed=1
   fi
-  if command -v secret-tool > /dev/null 2>&1 && ! secret_service_ok; then
+  if omarchy-cmd-present secret-tool && ! secret_service_ok; then
     echo "Secret Service 不可达，无法确认其中的副本已清除；服务恢复后重新执行 rm" >&2
     exit 1
   fi