diff --git a/scripts/check-plugin-npm-runtime-builds.mjs b/scripts/check-plugin-npm-runtime-builds.mjs
new file mode 100644
index 00000000000..c9d04a640a2
--- /dev/null
+++ b/scripts/check-plugin-npm-runtime-builds.mjs
@@ -0,0 +1,112 @@
+#!/usr/bin/env node
+
+import fs from "node:fs";
+import path from "node:path";
+import { pathToFileURL } from "node:url";
+import {
+  buildPluginNpmRuntime,
+  resolvePluginNpmRuntimeBuildPlan,
+} from "./lib/plugin-npm-runtime-build.mjs";
+
+function readJsonFile(filePath) {
+  return JSON.parse(fs.readFileSync(filePath, "utf8"));
+}
+
+function isPublishablePluginPackage(packageJson) {
+  return packageJson.openclaw?.release?.publishToNpm === true;
+}
+
+function listPublishablePluginPackageDirs(repoRoot) {
+  const extensionsRoot = path.join(repoRoot, "extensions");
+  return fs
+    .readdirSync(extensionsRoot, { withFileTypes: true })
+    .filter((entry) => entry.isDirectory())
+    .map((entry) => path.join("extensions", entry.name))
+    .filter((packageDir) => {
+      const packageJsonPath = path.join(repoRoot, packageDir, "package.json");
+      return (
+        fs.existsSync(packageJsonPath) && isPublishablePluginPackage(readJsonFile(packageJsonPath))
+      );
+    })
+    .toSorted((left, right) => left.localeCompare(right));
+}
+
+function parseArgs(argv) {
+  const packageDirs = [];
+  for (let index = 0; index < argv.length; index += 1) {
+    const arg = argv[index];
+    if (arg === "--package") {
+      const packageDir = argv[index + 1];
+      if (!packageDir) {
+        throw new Error("missing value for --package");
+      }
+      packageDirs.push(packageDir);
+      index += 1;
+      continue;
+    }
+    throw new Error(
+      "usage: node scripts/check-plugin-npm-runtime-builds.mjs [--package extensions/<id> ...]",
+    );
+  }
+  return { packageDirs };
+}
+
+function listMissingRuntimeOutputs(plan) {
+  return Object.keys(plan.entry)
+    .map((entryKey) => path.join(plan.outDir, `${entryKey}.js`))
+    .filter((filePath) => !fs.existsSync(filePath));
+}
+
+export async function checkPluginNpmRuntimeBuilds(params = {}) {
+  const repoRoot = path.resolve(params.repoRoot ?? ".");
+  const packageDirs =
+    params.packageDirs?.length > 0
+      ? params.packageDirs
+      : listPublishablePluginPackageDirs(repoRoot);
+  const rows = [];
+  for (const packageDir of packageDirs) {
+    const plan = resolvePluginNpmRuntimeBuildPlan({ repoRoot, packageDir });
+    if (!plan) {
+      throw new Error(`${packageDir} did not produce a package-local runtime build plan`);
+    }
+    const result = await buildPluginNpmRuntime({
+      repoRoot,
+      packageDir,
+      logLevel: params.logLevel ?? "warn",
+    });
+    const missing = listMissingRuntimeOutputs(result);
+    if (missing.length > 0) {
+      throw new Error(
+        `${packageDir} missing built runtime outputs: ${missing
+          .map((filePath) => path.relative(repoRoot, filePath))
+          .join(", ")}`,
+      );
+    }
+    rows.push({
+      pluginDir: result.pluginDir,
+      entryCount: Object.keys(result.entry).length,
+      copiedStaticAssets: result.copiedStaticAssets,
+    });
+  }
+  return rows;
+}
+
+if (import.meta.url === pathToFileURL(process.argv[1] ?? "").href) {
+  try {
+    const args = parseArgs(process.argv.slice(2));
+    const rows = await checkPluginNpmRuntimeBuilds(args);
+    console.log(`built ${rows.length} publishable plugin runtimes`);
+    for (const row of rows) {
+      console.log(
+        [
+          row.pluginDir,
+          row.entryCount,
+          row.copiedStaticAssets.length > 0 ? row.copiedStaticAssets.join(",") : "-",
+        ].join("\t"),
+      );
+    }
+  } catch (error) {
+    console.error(error instanceof Error ? error.message : String(error));
+    process.exitCode = 1;
+  }
+}