diff --git a/docs/release-control/v6/internal/subsystems/deployment-installability.md b/docs/release-control/v6/internal/subsystems/deployment-installability.md
index b59c60c858..dd220c72b1 100644
--- a/docs/release-control/v6/internal/subsystems/deployment-installability.md
+++ b/docs/release-control/v6/internal/subsystems/deployment-installability.md
@@ -219,6 +219,10 @@ That same wrapper rule also applies to the managed recovery-proof docs in
 bounce or verify the local managed runtime, they must use the repo-root wrapper
 surface such as `npm run dev:backend-restart` instead of documenting raw
 launcher commands directly.
+That runtime-guidance rule also applies to successful launcher startup output:
+`hot-dev-bg` must identify `http://127.0.0.1:5173` as the browser entrypoint
+and present `7655` as the managed backend dependency, rather than advertising
+frontend and backend URLs as if they were equal browser targets.
 That same dev-runtime helper boundary also includes the auxiliary operator
 controls that start, stop, restart, or recover local development. The repo-root
 Makefile targets, `scripts/toggle-mock.sh`, and `scripts/clean-mock-alerts.sh` must
diff --git a/scripts/hot-dev-bg.sh b/scripts/hot-dev-bg.sh
index 42ccccc61b..ab884ca3f5 100755
--- a/scripts/hot-dev-bg.sh
+++ b/scripts/hot-dev-bg.sh
@@ -442,8 +442,8 @@ PY
     log "Check logs with: npm run dev:logs"
   fi
 
-  log "Frontend: http://127.0.0.1:${FRONTEND_DEV_PORT}"
-  log "Backend:  http://127.0.0.1:${PULSE_DEV_API_PORT}"
+  log "Browser entrypoint: http://127.0.0.1:${FRONTEND_DEV_PORT}"
+  log "Managed backend:  http://127.0.0.1:${PULSE_DEV_API_PORT}"
   log "Logs: ${LOG_FILE}"
 }
 
diff --git a/scripts/tests/test-hot-dev-bg.sh b/scripts/tests/test-hot-dev-bg.sh
index dd8ee9207a..426e16b90b 100755
--- a/scripts/tests/test-hot-dev-bg.sh
+++ b/scripts/tests/test-hot-dev-bg.sh
@@ -190,6 +190,40 @@ test_launchd_session_supervises_managed_runtime() {
   assert_contains "launchd session exits nonzero on child crash" "${output}" "status=1"
 }
 
+test_start_bg_reports_browser_entrypoint() {
+  local test_dir fake_bin output
+  test_dir="$(mktemp -d)"
+  temp_dirs+=("${test_dir}")
+  fake_bin="${test_dir}/bin"
+  mkdir -p "${fake_bin}"
+
+  cat > "${fake_bin}/python3" <<'EOF'
+#!/usr/bin/env bash
+printf '4242\n'
+EOF
+  chmod +x "${fake_bin}/python3"
+
+  output="$(
+    HOT_DEV_BG_PATH="${HOT_DEV_BG}" \
+    PATH="${fake_bin}:$PATH" \
+    bash -lc '
+      source "${HOT_DEV_BG_PATH}"
+      PID_FILE="'"${test_dir}"'/hot-dev-bg.pid"
+      LOG_FILE="'"${test_dir}"'/hot-dev-bg.log"
+      FRONTEND_DEV_PORT=5173
+      PULSE_DEV_API_PORT=7655
+      has_unmanaged_listeners(){ return 1; }
+      is_running(){ return 1; }
+      wait_for_managed_listener(){ return 0; }
+      start_bg false
+    '
+  )"
+
+  assert_contains "start reports browser entrypoint" "${output}" "Browser entrypoint: http://127.0.0.1:5173"
+  assert_contains "start reports managed backend" "${output}" "Managed backend:  http://127.0.0.1:7655"
+  assert_not_contains "start no longer reports generic frontend url" "${output}" "Frontend: http://127.0.0.1:5173"
+}
+
 test_launchd_wrapper_uses_managed_supervisor() {
   local output
   output="$(sed -n '1,80p' "${DEV_LAUNCHD_WRAPPER}")"
@@ -566,6 +600,7 @@ main() {
   test_cli_parses_takeover_flag
   test_verify_command_injects_managed_runtime_env
   test_launchd_session_supervises_managed_runtime
+  test_start_bg_reports_browser_entrypoint
   test_launchd_wrapper_uses_managed_supervisor
   test_launchd_setup_advertises_managed_runtime_controls
   test_root_package_exposes_managed_runtime_entrypoints