diff --git a/npm_install.py b/npm_install.py
index dd92ac9..4162f9c 100644
--- a/npm_install.py
+++ b/npm_install.py
@@ -332,12 +332,13 @@ def setup_angie():
             write_file(Path("/usr/sbin/nginx"), "#!/bin/sh\nexec /usr/sbin/angie \"$@\"\n", 0o755)
 
         WRAP = """#!/bin/sh
-# nginx compat -> angie; safe config test (-t)
-# - strip all user-provided -g flags
-# - when running with -t, use a temp config without 'pid' and set pid via -g
+# nginx compat -> angie; silent safe config test (-t)
+# - drop all user -g
+# - for -t use temp config without 'pid'
+# - suppress ALL output; return angie's exit code
 
 strip_pid_conf() {
-  # 1) find base config from -c if provided, otherwise default
+  # find base config from -c if provided, else default
   local base_conf="/etc/angie/angie.conf"
   local next_is_c=
   local arg
@@ -350,17 +351,17 @@ strip_pid_conf() {
     [ "$arg" = "-c" ] && next_is_c=1
   done
 
-  # 2) create a temporary config with any top-level 'pid ...;' removed
+  # create a temp config with any top-level 'pid ...;' removed
   local tmpd tmpc
   tmpd="$(mktemp -d)"
   tmpc="$tmpd/angie.conf"
-  # remove lines starting with 'pid ...;' (with optional leading whitespace)
+  # remove 'pid ...;' at start of line (optionally indented)
   sed -E 's/^[[:space:]]*pid[[:space:]]+[^;]+;//' "$base_conf" > "$tmpc"
   printf '%s\n' "$tmpc"
 }
 
 if printf ' %s ' "$@" | grep -q ' -t '; then
-  # rebuild args: drop every -g <arg> and -c <file> (we will pass our own -c)
+  # rebuild args without any '-g <arg>' and without '-c <file>'
   NEW_ARGS=""
   skip_next=""
   for a in "$@"; do
@@ -376,12 +377,16 @@ if printf ' %s ' "$@" | grep -q ' -t '; then
   done
 
   TMP_CONF="$(strip_pid_conf "$@")"
+  # run test SILENTLY; propagate exit code; cleanup temp
   # shellcheck disable=SC2086
-  exec /usr/sbin/angie -g "pid /tmp/angie-test.pid; error_log off;" -c "$TMP_CONF" $NEW_ARGS
+  /usr/sbin/angie -g "pid /tmp/angie-test.pid; error_log off;" -c "$TMP_CONF" $NEW_ARGS >/dev/null 2>&1
+  rc=$?
+  rm -rf "$(dirname "$TMP_CONF")"
+  exit $rc
 else
-  # full compatibility (e.g. -s reload): forward everything to angie
   exec /usr/sbin/angie "$@"
 fi
+
 """
         write_file(Path("/usr/sbin/nginx"), WRAP, 0o755)