diff --git a/envsetup.sh b/envsetup.sh
index a03f02d..d6b6bb4 100644
--- a/envsetup.sh
+++ b/envsetup.sh
@@ -267,6 +267,13 @@
         export ANDROID_EMULATOR_PREBUILTS
     fi
 
+    # Append asuite prebuilts path to ANDROID_BUILD_PATHS.
+    local os_arch=$(get_build_var HOST_PREBUILT_TAG)
+    local ACLOUD_PATH="$T/prebuilts/asuite/acloud/$os_arch:"
+    local AIDEGEN_PATH="$T/prebuilts/asuite/aidegen/$os_arch:"
+    local ATEST_PATH="$T/prebuilts/asuite/atest/$os_arch:"
+    export ANDROID_BUILD_PATHS=$ANDROID_BUILD_PATHS$ACLOUD_PATH$AIDEGEN_PATH$ATEST_PATH
+
     export PATH=$ANDROID_BUILD_PATHS$PATH
 
     # out with the duplicate old
@@ -355,7 +362,7 @@
     local completion_files=(
       system/core/adb/adb.bash
       system/core/fastboot/fastboot.bash
-      tools/tradefederation/core/atest/atest_completion.sh
+      tools/asuite/asuite.sh
     )
     # Completion can be disabled selectively to allow users to use non-standard completion.
     # e.g.
@@ -1678,23 +1685,6 @@
     "$ANDROID_PRODUCT_OUT/provision-device" "$@"
 }
 
-function atest()
-{
-    # Let's use the built version over the prebuilt, then source code.
-    local os_arch=$(get_build_var HOST_PREBUILT_TAG)
-    local built_atest=${ANDROID_HOST_OUT}/bin/atest
-    local prebuilt_atest="$(gettop)"/prebuilts/asuite/atest/$os_arch/atest
-    if [[ -x $built_atest ]]; then
-        $built_atest "$@"
-    elif [[ -x $prebuilt_atest ]]; then
-        $prebuilt_atest "$@"
-    else
-        # TODO: once prebuilt atest released, remove the source code section
-        # and change the location of atest_completion.sh in addcompletions().
-        "$(gettop)"/tools/tradefederation/core/atest/atest.py "$@"
-    fi
-}
-
 # Zsh needs bashcompinit called to support bash-style completion.
 function enable_zsh_completion() {
     # Don't override user's options if bash-style completion is already enabled.
@@ -1719,40 +1709,6 @@
     esac
 }
 
-function acloud()
-{
-    # Let's use the built version over the prebuilt.
-    local built_acloud=${ANDROID_HOST_OUT}/bin/acloud
-    if [ -f $built_acloud ]; then
-        $built_acloud "$@"
-        return $?
-    fi
-
-    local host_os_arch=$(get_build_var HOST_PREBUILT_TAG)
-    case $host_os_arch in
-        linux-x86) "$(gettop)"/prebuilts/asuite/acloud/linux-x86/acloud "$@"
-        ;;
-        darwin-x86) "$(gettop)"/prebuilts/asuite/acloud/darwin-x86/acloud "$@"
-        ;;
-    *)
-        echo "acloud is not supported on your host arch: $host_os_arch"
-        ;;
-    esac
-}
-
-function aidegen()
-{
-    # Always use the prebuilt version.
-    local host_os_arch=$(get_build_var HOST_PREBUILT_TAG)
-    case $host_os_arch in
-        linux-x86) "$(gettop)"/prebuilts/asuite/aidegen/linux-x86/aidegen "$@"
-        ;;
-    *)
-        echo "aidegen is not supported on your host arch: $host_os_arch"
-        ;;
-    esac
-}
-
 # Execute the contents of any vendorsetup.sh files we can find.
 function source_vendorsetup() {
     for dir in device vendor product; do