diff --git a/plugins/ms-ai-architect/tests/run-e2e.sh b/plugins/ms-ai-architect/tests/run-e2e.sh
index 98be99d..95b3e7f 100755
--- a/plugins/ms-ai-architect/tests/run-e2e.sh
+++ b/plugins/ms-ai-architect/tests/run-e2e.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 # run-e2e.sh — Run E2E regression tests for agent outputs
-# Usage: bash tests/run-e2e.sh [--security] [--cost] [--summary] [--ros] [--ai-act] [--playground] [--all]
+# Usage: bash tests/run-e2e.sh [--security] [--cost] [--summary] [--ros] [--ai-act] [--playground] [--kb-update] [--all]
 set -euo pipefail
 
 SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
@@ -17,6 +17,7 @@ RUN_SUMMARY=false
 RUN_ROS=false
 RUN_AI_ACT=false
 RUN_PLAYGROUND=false
+RUN_KB_UPDATE=false
 
 if [ $# -eq 0 ] || [ "${1:-}" = "--all" ]; then
   RUN_SECURITY=true
@@ -25,6 +26,7 @@ if [ $# -eq 0 ] || [ "${1:-}" = "--all" ]; then
   RUN_ROS=true
   RUN_AI_ACT=true
   RUN_PLAYGROUND=true
+  RUN_KB_UPDATE=true
 else
   while [ $# -gt 0 ]; do
     case "$1" in
@@ -34,8 +36,9 @@ else
       --ros)        RUN_ROS=true ;;
       --ai-act)     RUN_AI_ACT=true ;;
       --playground) RUN_PLAYGROUND=true ;;
+      --kb-update)  RUN_KB_UPDATE=true ;;
       *)
-        echo "Usage: bash tests/run-e2e.sh [--security] [--cost] [--summary] [--ros] [--ai-act] [--playground] [--all]"
+        echo "Usage: bash tests/run-e2e.sh [--security] [--cost] [--summary] [--ros] [--ai-act] [--playground] [--kb-update] [--all]"
         exit 1
         ;;
     esac
@@ -75,6 +78,10 @@ if $RUN_PLAYGROUND; then
   bash "$SCRIPT_DIR/test-playground-parsers.sh" || FAILURES=$((FAILURES + 1))
 fi
 
+if $RUN_KB_UPDATE; then
+  bash "$SCRIPT_DIR/test-kb-update.sh" || FAILURES=$((FAILURES + 1))
+fi
+
 echo -e "${CYAN}══════════════════════════════════════════════${NC}"
 if [ "$FAILURES" -eq 0 ]; then
   echo -e "${GREEN}  All E2E suites passed${NC}"
diff --git a/plugins/ms-ai-architect/tests/test-kb-update.sh b/plugins/ms-ai-architect/tests/test-kb-update.sh
new file mode 100755
index 0000000..6a20c5c
--- /dev/null
+++ b/plugins/ms-ai-architect/tests/test-kb-update.sh
@@ -0,0 +1,44 @@
+#!/bin/bash
+# test-kb-update.sh — Run KB-update node:test suite via the E2E harness.
+# Bash 3.2-compatible. Sources lib/e2e-helpers.sh, runs node --test against
+# the kb-update glob (Node 25 rejects directory-form arguments to --test),
+# and translates the result into the suite's pass/fail counters.
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+PLUGIN_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
+
+source "$SCRIPT_DIR/lib/e2e-helpers.sh"
+
+init_suite "KB Update"
+
+cd "$PLUGIN_ROOT"
+
+if ! compgen -G "tests/kb-update/*.test.mjs" >/dev/null 2>&1; then
+  fail "No test files matched tests/kb-update/*.test.mjs"
+  print_summary
+  exit 1
+fi
+
+TEST_LOG="$(mktemp -t kb-update-suite.XXXXXX)"
+trap 'rm -f "$TEST_LOG"' EXIT
+
+NODE_EXIT=0
+node --test tests/kb-update/*.test.mjs >"$TEST_LOG" 2>&1 || NODE_EXIT=$?
+
+cat "$TEST_LOG"
+
+PASS_COUNT="$(awk '/^[^[:alnum:]]*pass[[:space:]]+[0-9]+/ { for (i=1;i<=NF;i++) if ($i=="pass") { print $(i+1); exit } }' "$TEST_LOG")"
+FAIL_COUNT="$(awk '/^[^[:alnum:]]*fail[[:space:]]+[0-9]+/ { for (i=1;i<=NF;i++) if ($i=="fail") { print $(i+1); exit } }' "$TEST_LOG")"
+TESTS_COUNT="$(awk '/^[^[:alnum:]]*tests[[:space:]]+[0-9]+/ { for (i=1;i<=NF;i++) if ($i=="tests") { print $(i+1); exit } }' "$TEST_LOG")"
+PASS_COUNT="${PASS_COUNT:-0}"
+FAIL_COUNT="${FAIL_COUNT:-0}"
+TESTS_COUNT="${TESTS_COUNT:-0}"
+
+if [ "$NODE_EXIT" -eq 0 ] && [ "$FAIL_COUNT" -eq 0 ]; then
+  pass "node --test tests/kb-update/*.test.mjs ($PASS_COUNT/$TESTS_COUNT pass)"
+else
+  fail "node --test failed (pass=$PASS_COUNT, fail=$FAIL_COUNT, tests=$TESTS_COUNT, exit=$NODE_EXIT)"
+fi
+
+print_summary