diff --git a/scripts/e2e/codex-on-demand-docker.sh b/scripts/e2e/codex-on-demand-docker.sh
index 788efab0c02a..24e4e3ed5785 100755
--- a/scripts/e2e/codex-on-demand-docker.sh
+++ b/scripts/e2e/codex-on-demand-docker.sh
@@ -6,12 +6,13 @@ set -euo pipefail
 ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
 source "$ROOT_DIR/scripts/lib/docker-e2e-image.sh"
 source "$ROOT_DIR/scripts/lib/docker-e2e-package.sh"
+source "$ROOT_DIR/scripts/e2e/lib/prepublish-plugin-registry.sh"
 
 IMAGE_NAME="$(docker_e2e_resolve_image "openclaw-codex-on-demand-e2e" OPENCLAW_CODEX_ON_DEMAND_E2E_IMAGE)"
 DOCKER_TARGET="${OPENCLAW_CODEX_ON_DEMAND_DOCKER_TARGET:-bare}"
 HOST_BUILD="${OPENCLAW_CODEX_ON_DEMAND_HOST_BUILD:-1}"
 PACKAGE_TGZ="${OPENCLAW_CURRENT_PACKAGE_TGZ:-}"
-PREPUBLISH_PLUGIN_REGISTRY_ARGS=()
+OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_DOCKER_ARGS=()
 AUTO_PREPUBLISH_PLUGIN_REGISTRY_ROOT=""
 run_log=""
 
@@ -20,33 +21,9 @@ run_log=""
 # the Codex assertions instead of failing as a silent package-install timeout.
 export OPENCLAW_E2E_NPM_INSTALL_TIMEOUT="${OPENCLAW_E2E_NPM_INSTALL_TIMEOUT:-1200s}"
 
-configure_prepublish_plugin_registry() {
-  local registry_dir="$1"
-  local resolved_registry_dir
-  resolved_registry_dir="$(cd "$registry_dir" && pwd)"
-  local manifest="$resolved_registry_dir/prepublish-plugin-registry.json"
-  if [ ! -f "$manifest" ]; then
-    echo "Prepublish plugin registry manifest is missing." >&2
-    exit 1
-  fi
-  local source_sha="${OPENCLAW_DOCKER_E2E_SELECTED_SHA:-}"
-  local candidate_version="${OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_CANDIDATE_VERSION:-}"
-  local manifest_sha256="${OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_MANIFEST_SHA256:-}"
-  source_sha="${source_sha:-$(node -e 'process.stdout.write(require(process.argv[1]).sourceSha)' "$manifest")}"
-  candidate_version="${candidate_version:-$(node -e 'process.stdout.write(require(process.argv[1]).candidateVersion)' "$manifest")}"
-  if [ -z "$manifest_sha256" ]; then
-    manifest_sha256="$(node -e 'const fs=require("node:fs"),crypto=require("node:crypto");process.stdout.write(crypto.createHash("sha256").update(fs.readFileSync(process.argv[1])).digest("hex"))' "$manifest")"
-  fi
-  PREPUBLISH_PLUGIN_REGISTRY_ARGS=(
-    -e OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_DIR=/tmp/openclaw-prepublish-plugin-registry
-    -e OPENCLAW_DOCKER_E2E_SELECTED_SHA="$source_sha"
-    -e OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_CANDIDATE_VERSION="$candidate_version"
-    -e OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_MANIFEST_SHA256="$manifest_sha256"
-    -v "$resolved_registry_dir:/tmp/openclaw-prepublish-plugin-registry:ro"
-  )
-}
 if [ -n "${OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_DIR:-}" ]; then
-  configure_prepublish_plugin_registry "$OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_DIR"
+  openclaw_prepublish_plugin_registry_configure_docker_args \
+    "$OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_DIR"
 fi
 
 cleanup() {
@@ -88,7 +65,7 @@ if [ -z "${OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_DIR:-}" ] &&
     OPENCLAW_DOCKER_ALL_LOG_DIR="$AUTO_PREPUBLISH_PLUGIN_REGISTRY_ROOT" \
     OPENCLAW_DOCKER_ALL_TIMINGS=0 \
     node "$ROOT_DIR/scripts/test-docker-all.mjs" --prepare-plugin-registry >/dev/null
-  configure_prepublish_plugin_registry \
+  openclaw_prepublish_plugin_registry_configure_docker_args \
     "$AUTO_PREPUBLISH_PLUGIN_REGISTRY_ROOT/prepublish-plugin-registry"
 fi
 
@@ -100,7 +77,7 @@ echo "Running Codex on-demand Docker E2E..."
 if ! docker_e2e_run_with_harness \
   -e COREPACK_ENABLE_DOWNLOAD_PROMPT=0 \
   -e "OPENCLAW_TEST_STATE_SCRIPT_B64=$OPENCLAW_TEST_STATE_SCRIPT_B64" \
-  ${PREPUBLISH_PLUGIN_REGISTRY_ARGS[@]+"${PREPUBLISH_PLUGIN_REGISTRY_ARGS[@]}"} \
+  "${OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_DOCKER_ARGS[@]}" \
   "${DOCKER_E2E_PACKAGE_ARGS[@]}" \
   -i "$IMAGE_NAME" bash -s >"$run_log" 2>&1 <<'EOF'; then
 set -euo pipefail
@@ -135,16 +112,8 @@ cleanup_inner() {
 trap cleanup_inner EXIT
 
 configure_plugin_registry() {
-  [ -n "${OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_DIR:-}" ] || return 0
-  local registry_root="/tmp/openclaw-codex-registry"
-  OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_REQUIRED_PACKAGES_JSON='["@openclaw/codex"]' \
-    openclaw_prepublish_plugin_registry_start \
-    "$OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_DIR" \
-    "${OPENCLAW_DOCKER_E2E_SELECTED_SHA:?missing selected SHA}" \
-    "${OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_CANDIDATE_VERSION:?missing candidate version}" \
-    "${OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_MANIFEST_SHA256:?missing manifest SHA-256}" \
-    "$registry_root" \
-    plugin_registry_pid
+  openclaw_prepublish_plugin_registry_start_mounted \
+    /tmp/openclaw-codex-registry plugin_registry_pid '["@openclaw/codex"]'
 }
 
 mkdir -p "$NPM_CONFIG_PREFIX" "$XDG_CACHE_HOME" "$NPM_CONFIG_CACHE"
diff --git a/scripts/e2e/lib/prepublish-plugin-registry.sh b/scripts/e2e/lib/prepublish-plugin-registry.sh
index 5469f4e7a3f6..979e382d7055 100644
--- a/scripts/e2e/lib/prepublish-plugin-registry.sh
+++ b/scripts/e2e/lib/prepublish-plugin-registry.sh
@@ -1,5 +1,33 @@
 #!/usr/bin/env bash
 
+openclaw_prepublish_plugin_registry_configure_docker_args() {
+  local registry_dir="$1"
+  local resolved_registry_dir
+  resolved_registry_dir="$(cd "$registry_dir" && pwd)"
+  local manifest="$resolved_registry_dir/prepublish-plugin-registry.json"
+  if [ ! -f "$manifest" ]; then
+    echo "Prepublish plugin registry manifest is missing." >&2
+    return 1
+  fi
+
+  local source_sha="${OPENCLAW_DOCKER_E2E_SELECTED_SHA:-}"
+  local candidate_version="${OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_CANDIDATE_VERSION:-}"
+  local manifest_sha256="${OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_MANIFEST_SHA256:-}"
+  source_sha="${source_sha:-$(node -e 'process.stdout.write(require(process.argv[1]).sourceSha)' "$manifest")}"
+  candidate_version="${candidate_version:-$(node -e 'process.stdout.write(require(process.argv[1]).candidateVersion)' "$manifest")}"
+  if [ -z "$manifest_sha256" ]; then
+    manifest_sha256="$(node -e 'const fs=require("node:fs"),crypto=require("node:crypto");process.stdout.write(crypto.createHash("sha256").update(fs.readFileSync(process.argv[1])).digest("hex"))' "$manifest")"
+  fi
+
+  OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_DOCKER_ARGS=(
+    -e OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_DIR=/tmp/openclaw-prepublish-plugin-registry
+    -e OPENCLAW_DOCKER_E2E_SELECTED_SHA="$source_sha"
+    -e OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_CANDIDATE_VERSION="$candidate_version"
+    -e OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_MANIFEST_SHA256="$manifest_sha256"
+    -v "$resolved_registry_dir:/tmp/openclaw-prepublish-plugin-registry:ro"
+  )
+}
+
 openclaw_prepublish_plugin_registry_start() {
   local artifact_dir="$1" source_sha="$2" candidate_version="$3"
   local manifest_sha256="$4" registry_root="$5" pid_variable="$6"
@@ -90,3 +118,19 @@ NODE
   export npm_config_registry="$NPM_CONFIG_REGISTRY"
   printf -v "$pid_variable" "%s" "$server_pid"
 }
+
+openclaw_prepublish_plugin_registry_start_mounted() {
+  local registry_root="$1" pid_variable="$2" required_packages_json="$3"
+  shift 3
+  [ -n "${OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_DIR:-}" ] || return 0
+
+  OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_REQUIRED_PACKAGES_JSON="$required_packages_json" \
+    openclaw_prepublish_plugin_registry_start \
+    "$OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_DIR" \
+    "${OPENCLAW_DOCKER_E2E_SELECTED_SHA:?missing selected SHA}" \
+    "${OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_CANDIDATE_VERSION:?missing candidate version}" \
+    "${OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_MANIFEST_SHA256:?missing manifest SHA-256}" \
+    "$registry_root" \
+    "$pid_variable" \
+    "$@"
+}
diff --git a/scripts/e2e/npm-onboard-channel-agent-docker.sh b/scripts/e2e/npm-onboard-channel-agent-docker.sh
index 53c18a79dce1..2e8962b58f4a 100644
--- a/scripts/e2e/npm-onboard-channel-agent-docker.sh
+++ b/scripts/e2e/npm-onboard-channel-agent-docker.sh
@@ -7,6 +7,7 @@ ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
 SOURCE_ROOT="$(cd "${OPENCLAW_NPM_ONBOARD_SOURCE_ROOT:-${OPENCLAW_LIVE_DOCKER_REPO_ROOT:-$ROOT_DIR}}" && pwd)"
 source "$ROOT_DIR/scripts/lib/docker-e2e-image.sh"
 source "$ROOT_DIR/scripts/lib/docker-e2e-package.sh"
+source "$ROOT_DIR/scripts/e2e/lib/prepublish-plugin-registry.sh"
 
 IMAGE_NAME="$(docker_e2e_resolve_image "openclaw-npm-onboard-channel-agent-e2e" OPENCLAW_NPM_ONBOARD_E2E_IMAGE)"
 DOCKER_TARGET="${OPENCLAW_NPM_ONBOARD_DOCKER_TARGET:-bare}"
@@ -23,6 +24,7 @@ STATUS_TEXT_MAX_BYTES="$(
 run_log=""
 plugin_pack_dir=""
 plugin_package_args=()
+OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_DOCKER_ARGS=()
 
 cleanup() {
   if [ -n "${PACKAGE_TGZ:-}" ]; then
@@ -95,6 +97,11 @@ prepare_source_plugin_package() {
 
 prepare_source_plugin_package
 
+if [ -n "${OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_DIR:-}" ]; then
+  openclaw_prepublish_plugin_registry_configure_docker_args \
+    "$OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_DIR"
+fi
+
 docker_e2e_package_mount_args "$PACKAGE_TGZ"
 run_log="$(docker_e2e_run_log npm-onboard-channel-agent)"
 OPENCLAW_TEST_STATE_SCRIPT_B64="$(docker_e2e_test_state_shell_b64 npm-onboard-channel-agent empty)"
@@ -108,10 +115,12 @@ if ! docker_e2e_run_with_harness \
   -e "OPENCLAW_TEST_STATE_SCRIPT_B64=$OPENCLAW_TEST_STATE_SCRIPT_B64" \
   "${DOCKER_E2E_PACKAGE_ARGS[@]}" \
   "${plugin_package_args[@]}" \
+  "${OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_DOCKER_ARGS[@]}" \
   -i "$IMAGE_NAME" bash -s >"$run_log" 2>&1 <<'EOF'; then
 set -Eeuo pipefail
 
 source scripts/lib/openclaw-e2e-instance.sh
+source scripts/e2e/lib/prepublish-plugin-registry.sh
 openclaw_e2e_eval_test_state_from_b64 "${OPENCLAW_TEST_STATE_SCRIPT_B64:?missing OPENCLAW_TEST_STATE_SCRIPT_B64}"
 export NPM_CONFIG_PREFIX="$HOME/.npm-global"
 export PATH="$NPM_CONFIG_PREFIX/bin:$PATH"
@@ -126,6 +135,7 @@ scenario_tmp="$(mktemp -d "${TMPDIR:-/tmp}/openclaw-npm-onboard-channel-agent.XX
 MOCK_REQUEST_LOG="$scenario_tmp/mock-openai-requests.jsonl"
 export SUCCESS_MARKER MOCK_REQUEST_LOG
 mock_pid=""
+plugin_registry_pid=""
 
 case "$CHANNEL" in
   telegram)
@@ -155,6 +165,7 @@ esac
 
 cleanup() {
   openclaw_e2e_stop_process "${mock_pid:-}"
+  openclaw_e2e_stop_process "${plugin_registry_pid:-}"
   rm -rf "$scenario_tmp"
 }
 trap cleanup EXIT
@@ -180,6 +191,11 @@ dump_debug_logs() {
 }
 trap 'status=$?; dump_debug_logs "$status"; exit "$status"' ERR
 
+if [ -n "${OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_DIR:-}" ]; then
+  openclaw_prepublish_plugin_registry_start_mounted \
+    /tmp/openclaw-npm-onboard-plugin-registry plugin_registry_pid '["@openclaw/codex"]'
+fi
+
 openclaw_e2e_install_package /tmp/openclaw-install.log
 
 command -v openclaw >/dev/null
diff --git a/scripts/lib/docker-e2e-scenarios.mts b/scripts/lib/docker-e2e-scenarios.mts
index 74945c12f73c..4179ee96fd94 100644
--- a/scripts/lib/docker-e2e-scenarios.mts
+++ b/scripts/lib/docker-e2e-scenarios.mts
@@ -64,6 +64,12 @@ const updateMigrationCommand = upgradeSurvivorScriptCommand(
 const updateRunPackageSelfUpgradeCommand =
   "OPENCLAW_QA_ALLOW_UPDATE_RUN_SELF=1 OPENCLAW_SKIP_DOCKER_BUILD=1 pnpm test:docker:update-run-package-self-upgrade";
 const CODEX_HARNESS_API_KEY_ENV = "OPENCLAW_LIVE_CODEX_HARNESS_AUTH=api-key";
+const npmOnboardLaneOptions = {
+  prepublishPluginPackages: ["@openclaw/codex"],
+  resources: ["service"],
+  stateScenario: "empty",
+  weight: 3,
+} satisfies LaneOptions;
 
 const LIVE_RETRY_PATTERNS = [
   /529\b/i,
@@ -461,17 +467,17 @@ export const mainLanes: DockerE2eLane[] = [
   npmLane(
     "npm-onboard-channel-agent",
     "OPENCLAW_SKIP_DOCKER_BUILD=1 pnpm test:docker:npm-onboard-channel-agent",
-    { resources: ["service"], stateScenario: "empty", weight: 3 },
+    npmOnboardLaneOptions,
   ),
   npmLane(
     "npm-onboard-discord-channel-agent",
     "OPENCLAW_NPM_ONBOARD_CHANNEL=discord OPENCLAW_SKIP_DOCKER_BUILD=1 pnpm test:docker:npm-onboard-channel-agent",
-    { resources: ["service"], stateScenario: "empty", weight: 3 },
+    npmOnboardLaneOptions,
   ),
   npmLane(
     "npm-onboard-slack-channel-agent",
     "OPENCLAW_NPM_ONBOARD_CHANNEL=slack OPENCLAW_SKIP_DOCKER_BUILD=1 pnpm test:docker:npm-onboard-channel-agent",
-    { resources: ["service"], stateScenario: "empty", weight: 3 },
+    npmOnboardLaneOptions,
   ),
   // Prerelease validation must pair frozen core bytes with matching target plugin bytes.
   // Keep the registry-backed lanes above unchanged for published-package proof.
@@ -481,7 +487,7 @@ export const mainLanes: DockerE2eLane[] = [
       "e2e/npm-onboard-channel-agent-docker.sh",
       "OPENCLAW_NPM_ONBOARD_CHANNEL=discord OPENCLAW_NPM_ONBOARD_USE_SOURCE_PLUGIN_PACKAGE=1",
     ),
-    { resources: ["service"], stateScenario: "empty", weight: 3 },
+    npmOnboardLaneOptions,
   ),
   npmLane(
     "npm-onboard-slack-candidate-channel-agent",
@@ -489,7 +495,7 @@ export const mainLanes: DockerE2eLane[] = [
       "e2e/npm-onboard-channel-agent-docker.sh",
       "OPENCLAW_NPM_ONBOARD_CHANNEL=slack OPENCLAW_NPM_ONBOARD_USE_SOURCE_PLUGIN_PACKAGE=1",
     ),
-    { resources: ["service"], stateScenario: "empty", weight: 3 },
+    npmOnboardLaneOptions,
   ),
   npmLane(
     "release-user-journey",
diff --git a/test/scripts/docker-build-helper.test.ts b/test/scripts/docker-build-helper.test.ts
index 9f74aba02a13..a7caaacf8c82 100644
--- a/test/scripts/docker-build-helper.test.ts
+++ b/test/scripts/docker-build-helper.test.ts
@@ -3882,10 +3882,10 @@ grep -Fxq preserved "$TMPDIR/caller-fd"
 
     expectTextToIncludeAll(runner, [
       "OPENCLAW_DOCKER_ALL_LANES=codex-on-demand",
-      "OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_DIR=/tmp/openclaw-prepublish-plugin-registry",
       "source scripts/e2e/lib/prepublish-plugin-registry.sh",
-      "openclaw_prepublish_plugin_registry_start",
-      "OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_REQUIRED_PACKAGES_JSON='[\"@openclaw/codex\"]'",
+      "openclaw_prepublish_plugin_registry_configure_docker_args",
+      "openclaw_prepublish_plugin_registry_start_mounted",
+      "'[\"@openclaw/codex\"]'",
     ]);
     expectTextToIncludeAll(registryHelper, [
       'OPENCLAW_NPM_REGISTRY_DIST_TAGS="$dist_tags"',
@@ -3899,6 +3899,20 @@ grep -Fxq preserved "$TMPDIR/caller-fd"
     );
   });
 
+  it("reuses the candidate registry lifecycle for channel onboarding", () => {
+    const runner = readFileSync(NPM_ONBOARD_CHANNEL_AGENT_DOCKER_E2E_PATH, "utf8");
+
+    expectTextToIncludeAll(runner, [
+      'source "$ROOT_DIR/scripts/e2e/lib/prepublish-plugin-registry.sh"',
+      "openclaw_prepublish_plugin_registry_configure_docker_args",
+      "openclaw_prepublish_plugin_registry_start_mounted",
+      "'[\"@openclaw/codex\"]'",
+    ]);
+    expect(runner.indexOf("openclaw_prepublish_plugin_registry_start_mounted")).toBeLessThan(
+      runner.indexOf("\nopenclaw_e2e_install_package"),
+    );
+  });
+
   it("cleans package-backed onboarding and plugin Docker artifacts on every exit path", () => {
     for (const path of [
       CODEX_ON_DEMAND_DOCKER_E2E_PATH,
diff --git a/test/scripts/docker-e2e-plan.test.ts b/test/scripts/docker-e2e-plan.test.ts
index 26844c2df3e8..e34c6a527fdb 100644
--- a/test/scripts/docker-e2e-plan.test.ts
+++ b/test/scripts/docker-e2e-plan.test.ts
@@ -144,6 +144,22 @@ function bundledPluginSweepLane(index: number): ReturnType<typeof summarizeLane>
 }
 
 describe("scripts/lib/docker-e2e-plan", () => {
+  it("prepares the matching Codex package for candidate npm onboarding", () => {
+    const laneNames = [
+      "npm-onboard-channel-agent",
+      "npm-onboard-discord-channel-agent",
+      "npm-onboard-slack-channel-agent",
+      "npm-onboard-discord-candidate-channel-agent",
+      "npm-onboard-slack-candidate-channel-agent",
+    ];
+    const lanes = laneNames.map((name) => findLaneByName(name));
+
+    expect(lanes.map((lane) => lane?.name)).toEqual(laneNames);
+    expect(requiredPrepublishPluginPackagesForLanes(lanes.flatMap((lane) => lane ?? []))).toEqual([
+      "@openclaw/codex",
+    ]);
+  });
+
   it("omits a package-script lane unavailable from the candidate", () => {
     const plan = planFor({
       candidatePackageRoot: writeCandidatePackage({}),
diff --git a/test/scripts/prepublish-plugin-registry-shell.test.ts b/test/scripts/prepublish-plugin-registry-shell.test.ts
index bc97283d30f8..0bb6df6af219 100644
--- a/test/scripts/prepublish-plugin-registry-shell.test.ts
+++ b/test/scripts/prepublish-plugin-registry-shell.test.ts
@@ -30,6 +30,39 @@ function createTarball(
 }
 
 describe("prepublish plugin registry shell helper", () => {
+  it("derives the immutable Docker mount contract from the registry artifact", () => {
+    const root = tempDirs.make("openclaw-prepublish-registry-mount-");
+    const manifestPath = join(root, "prepublish-plugin-registry.json");
+    writeFileSync(
+      manifestPath,
+      `${JSON.stringify({ candidateVersion: VERSION, packages: [], sourceSha: SOURCE_SHA })}\n`,
+    );
+
+    const result = spawnSync(
+      "bash",
+      [
+        "-c",
+        `
+set -euo pipefail
+source "$HELPER"
+openclaw_prepublish_plugin_registry_configure_docker_args "$ARTIFACT_DIR"
+printf '%s\n' "\${OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_DOCKER_ARGS[@]}"
+`,
+      ],
+      { encoding: "utf8", env: { ...process.env, ARTIFACT_DIR: root, HELPER: SCRIPT } },
+    );
+
+    expect(result.status, result.stderr).toBe(0);
+    expect(result.stdout).toContain(`OPENCLAW_DOCKER_E2E_SELECTED_SHA=${SOURCE_SHA}`);
+    expect(result.stdout).toContain(
+      `OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_CANDIDATE_VERSION=${VERSION}`,
+    );
+    expect(result.stdout).toContain(`${root}:/tmp/openclaw-prepublish-plugin-registry:ro`);
+    expect(result.stdout).toContain(
+      `OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_MANIFEST_SHA256=${sha256(manifestPath)}`,
+    );
+  });
+
   it("verifies and serves every artifact package plus caller-owned fixtures", () => {
     const root = tempDirs.make("openclaw-prepublish-registry-shell-");
     const artifactDir = join(root, "artifact");
@@ -85,10 +118,12 @@ cleanup() {
   fi
 }
 trap cleanup EXIT
-export OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_REQUIRED_PACKAGES_JSON='["@openclaw/codex"]'
-openclaw_prepublish_plugin_registry_start \
-  "$ARTIFACT_DIR" "$SOURCE_SHA" "$VERSION" "$MANIFEST_SHA256" \
-  "$REGISTRY_ROOT" registry_pid \
+export OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_DIR="$ARTIFACT_DIR"
+export OPENCLAW_DOCKER_E2E_SELECTED_SHA="$SOURCE_SHA"
+export OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_CANDIDATE_VERSION="$VERSION"
+export OPENCLAW_PREPUBLISH_PLUGIN_REGISTRY_MANIFEST_SHA256="$MANIFEST_SHA256"
+openclaw_prepublish_plugin_registry_start_mounted \
+  "$REGISTRY_ROOT" registry_pid '["@openclaw/codex"]' \
   "@openclaw/brave-plugin" "$VERSION" "$EXTRA_TARBALL"
 node <<'NODE'
 const packages = ["@openclaw/codex", "@openclaw/telegram", "@openclaw/brave-plugin"];