diff --git a/scripts/check-openclaw-package-tarball.mjs b/scripts/check-openclaw-package-tarball.mjs
index ae817fc2d0b..2625d30a93e 100644
--- a/scripts/check-openclaw-package-tarball.mjs
+++ b/scripts/check-openclaw-package-tarball.mjs
@@ -7,6 +7,7 @@ import fs from "node:fs";
 import os from "node:os";
 import path from "node:path";
 import { LOCAL_BUILD_METADATA_DIST_PATHS } from "./lib/local-build-metadata-paths.mjs";
+import { expandPackageDistImportClosure } from "./lib/package-dist-imports.mjs";
 
 function usage() {
   return "Usage: node scripts/check-openclaw-package-tarball.mjs <openclaw.tgz>";
@@ -243,6 +244,8 @@ if (entrySet.has("dist/postinstall-inventory.json")) {
     if (!Array.isArray(inventory) || inventory.some((entry) => typeof entry !== "string")) {
       errors.push("invalid dist/postinstall-inventory.json");
     } else {
+      const normalizedInventory = inventory.map((entry) => entry.replace(/\\/gu, "/"));
+      const normalizedInventorySet = new Set(normalizedInventory);
       for (const inventoryEntry of inventory) {
         const normalizedEntry = inventoryEntry.replace(/\\/gu, "/");
         if (!entrySet.has(normalizedEntry)) {
@@ -258,6 +261,16 @@ if (entrySet.has("dist/postinstall-inventory.json")) {
           errors.push(`inventory references missing tar entry ${normalizedEntry}`);
         }
       }
+      const expandedInventory = expandPackageDistImportClosure({
+        files: normalized,
+        seedFiles: normalizedInventory,
+        readText: readTarEntry,
+      });
+      for (const importedEntry of expandedInventory) {
+        if (!normalizedInventorySet.has(importedEntry)) {
+          errors.push(`inventory omits imported dist file ${importedEntry}`);
+        }
+      }
     }
   } catch (error) {
     errors.push(
diff --git a/scripts/lib/package-dist-imports.mjs b/scripts/lib/package-dist-imports.mjs
new file mode 100644
index 00000000000..35ca7bac370
--- /dev/null
+++ b/scripts/lib/package-dist-imports.mjs
@@ -0,0 +1,170 @@
+import path from "node:path";
+
+const JS_DIST_FILE_RE = /^dist\/.*\.(?:cjs|js|mjs)$/u;
+
+function normalizePackagePath(value) {
+  return value.replace(/\\/gu, "/").replace(/^package\//u, "");
+}
+
+function stripSpecifierSuffix(value) {
+  return value.replace(/[?#].*$/u, "");
+}
+
+function resolveDistImportPath(importerPath, specifier) {
+  if (!specifier.startsWith(".")) {
+    return null;
+  }
+  const stripped = stripSpecifierSuffix(specifier);
+  if (!stripped) {
+    return null;
+  }
+  return path.posix.normalize(path.posix.join(path.posix.dirname(importerPath), stripped));
+}
+
+function findStatementStart(source, index) {
+  return (
+    Math.max(
+      source.lastIndexOf(";", index),
+      source.lastIndexOf("{", index),
+      source.lastIndexOf("}", index),
+      source.lastIndexOf("\n", index),
+      source.lastIndexOf("\r", index),
+    ) + 1
+  );
+}
+
+function isImportSpecifierContext(source, index) {
+  const dynamicPrefix = source.slice(Math.max(0, index - 32), index);
+  if (/\bimport\s*\(\s*$/u.test(dynamicPrefix)) {
+    return true;
+  }
+  const statementPrefix = source.slice(findStatementStart(source, index), index).trimStart();
+  return (
+    /^(?:import|export)\b[\s\S]*\bfrom\s*$/u.test(statementPrefix) ||
+    /^import\s*$/u.test(statementPrefix)
+  );
+}
+
+function collectImportSpecifiers(source) {
+  const specifiers = [];
+  let inBlockComment = false;
+  let inLineComment = false;
+  for (let index = 0; index < source.length; index += 1) {
+    if (inBlockComment) {
+      if (source[index] === "*" && source[index + 1] === "/") {
+        inBlockComment = false;
+        index += 1;
+      }
+      continue;
+    }
+    if (inLineComment) {
+      if (source[index] === "\n" || source[index] === "\r") {
+        inLineComment = false;
+      }
+      continue;
+    }
+    if (source[index] === "/" && source[index + 1] === "*") {
+      inBlockComment = true;
+      index += 1;
+      continue;
+    }
+    if (source[index] === "/" && source[index + 1] === "/") {
+      inLineComment = true;
+      index += 1;
+      continue;
+    }
+
+    const quote = source[index];
+    if (quote !== '"' && quote !== "'") {
+      continue;
+    }
+
+    let cursor = index + 1;
+    let value = "";
+    while (cursor < source.length) {
+      const char = source[cursor];
+      if (char === "\\") {
+        value += source.slice(cursor, cursor + 2);
+        cursor += 2;
+        continue;
+      }
+      if (char === quote) {
+        break;
+      }
+      value += char;
+      cursor += 1;
+    }
+    if (cursor >= source.length) {
+      break;
+    }
+
+    if (value.startsWith(".")) {
+      if (isImportSpecifierContext(source, index)) {
+        specifiers.push(value);
+      }
+    }
+    index = cursor;
+  }
+  return specifiers;
+}
+
+export function collectPackageDistImportErrors(params) {
+  const files = [...new Set(params.files.map(normalizePackagePath))];
+  const fileSet = new Set(files);
+  const errors = [];
+
+  for (const { importerPath, importedPath } of collectPackageDistImports({
+    files,
+    readText: params.readText,
+  })) {
+    if (!fileSet.has(importedPath)) {
+      errors.push(`${importerPath} imports missing ${importedPath}`);
+    }
+  }
+
+  return errors;
+}
+
+export function collectPackageDistImports(params) {
+  const files = [...new Set(params.files.map(normalizePackagePath))];
+  const imports = [];
+
+  for (const importerPath of files.toSorted((left, right) => left.localeCompare(right))) {
+    if (!JS_DIST_FILE_RE.test(importerPath) || importerPath.includes("/node_modules/")) {
+      continue;
+    }
+    const source = params.readText(importerPath);
+    for (const specifier of collectImportSpecifiers(source)) {
+      const importedPath = resolveDistImportPath(importerPath, specifier);
+      if (!importedPath) {
+        continue;
+      }
+      imports.push({ importerPath, importedPath });
+    }
+  }
+
+  return imports;
+}
+
+export function expandPackageDistImportClosure(params) {
+  const files = [...new Set(params.files.map(normalizePackagePath))];
+  const fileSet = new Set(files);
+  const expectedSet = new Set(params.seedFiles.map(normalizePackagePath));
+  let changed = true;
+
+  while (changed) {
+    changed = false;
+    for (const { importedPath } of collectPackageDistImports({
+      files: [...expectedSet].filter((file) => fileSet.has(file)),
+      readText: params.readText,
+    })) {
+      if (!fileSet.has(importedPath) || expectedSet.has(importedPath)) {
+        continue;
+      }
+      expectedSet.add(importedPath);
+      changed = true;
+    }
+  }
+
+  return [...expectedSet].toSorted((left, right) => left.localeCompare(right));
+}
diff --git a/scripts/postinstall-bundled-plugins.mjs b/scripts/postinstall-bundled-plugins.mjs
index f3816d17ab0..279799459b5 100644
--- a/scripts/postinstall-bundled-plugins.mjs
+++ b/scripts/postinstall-bundled-plugins.mjs
@@ -23,6 +23,7 @@ import {
 } from "node:fs";
 import { basename, dirname, isAbsolute, join, relative } from "node:path";
 import { fileURLToPath, pathToFileURL } from "node:url";
+import { expandPackageDistImportClosure } from "./lib/package-dist-imports.mjs";
 import { resolveNpmRunner } from "./npm-runner.mjs";
 
 export const BUNDLED_PLUGIN_INSTALL_TARGETS = [];
@@ -292,6 +293,16 @@ export function pruneInstalledPackageDist(params = {}) {
     }
   }
   const installedFiles = listInstalledDistFiles(params);
+  const readFile = params.readFileSync ?? readFileSync;
+  expectedFiles = new Set(
+    expandPackageDistImportClosure({
+      files: installedFiles,
+      seedFiles: [...expectedFiles],
+      readText(relativePath) {
+        return readFile(join(packageRoot, relativePath), "utf8");
+      },
+    }),
+  );
   const removed = [];
 
   for (const relativePath of installedFiles) {
diff --git a/test/scripts/check-openclaw-package-tarball.test.ts b/test/scripts/check-openclaw-package-tarball.test.ts
index ac017fb357a..e43a0378600 100644
--- a/test/scripts/check-openclaw-package-tarball.test.ts
+++ b/test/scripts/check-openclaw-package-tarball.test.ts
@@ -122,6 +122,26 @@ describe("check-openclaw-package-tarball", () => {
 
         expect(result.status, result.stderr).toBe(0);
       },
+      "2026.4.27",
+    );
+  });
+
+  it("rejects imported dist chunks omitted from the postinstall inventory", () => {
+    withTarball(
+      ["dist/cli/run-main.js"],
+      {
+        "dist/cli/run-main.js": 'await import("../memory-state-current.js");\n',
+        "dist/memory-state-current.js": "export {};\n",
+      },
+      (tarball) => {
+        const result = spawnSync("node", [CHECK_SCRIPT, tarball], { encoding: "utf8" });
+
+        expect(result.status).not.toBe(0);
+        expect(result.stderr).toContain(
+          "inventory omits imported dist file dist/memory-state-current.js",
+        );
+      },
+      "2026.4.27",
     );
   });
 
diff --git a/test/scripts/postinstall-bundled-plugins.test.ts b/test/scripts/postinstall-bundled-plugins.test.ts
index 06cefb18fee..c689b3ad47b 100644
--- a/test/scripts/postinstall-bundled-plugins.test.ts
+++ b/test/scripts/postinstall-bundled-plugins.test.ts
@@ -397,6 +397,28 @@ describe("bundled plugin postinstall", () => {
     await expect(fs.stat(staleFile)).rejects.toMatchObject({ code: "ENOENT" });
   });
 
+  it("keeps imported dist chunks even when inventory is stale", async () => {
+    const packageRoot = await createTempDirAsync("openclaw-packaged-install-import-");
+    const entryFile = path.join(packageRoot, "dist", "cli", "run-main.js");
+    const importedChunk = path.join(packageRoot, "dist", "memory-state-CcqRgDZU.js");
+    const staleFile = path.join(packageRoot, "dist", "memory-state-old.js");
+    await fs.mkdir(path.dirname(entryFile), { recursive: true });
+    await fs.writeFile(entryFile, 'await import("../memory-state-CcqRgDZU.js");\n');
+    await writePackageDistInventory(packageRoot);
+    await fs.writeFile(importedChunk, "export {};\n");
+    await fs.writeFile(staleFile, "export {};\n");
+
+    expect(
+      pruneInstalledPackageDist({
+        packageRoot,
+        log: { log: vi.fn(), warn: vi.fn() },
+      }),
+    ).toEqual(["dist/memory-state-old.js"]);
+
+    await expect(fs.stat(importedChunk)).resolves.toBeTruthy();
+    await expect(fs.stat(staleFile)).rejects.toMatchObject({ code: "ENOENT" });
+  });
+
   it("prunes stale private QA files without restoring compat sidecars", async () => {
     const packageRoot = await createTempDirAsync("openclaw-packaged-install-qa-compat-");
     const currentFile = path.join(packageRoot, "dist", "entry.js");