fix: repair bundled plugin dirs after npm install

src/plugins/discovery.test.ts

@@ -328,6 +328,35 @@ describe("discoverOpenClawPlugins", () => {
     );
   });
 
+  it.runIf(process.platform !== "win32")(
+    "repairs world-writable bundled plugin dirs before loading them",
+    async () => {
+      const stateDir = makeTempDir();
+      const bundledDir = path.join(stateDir, "bundled");
+      const packDir = path.join(bundledDir, "demo-pack");
+      fs.mkdirSync(packDir, { recursive: true });
+      fs.writeFileSync(path.join(packDir, "index.ts"), "export default function () {}", "utf-8");
+      fs.chmodSync(packDir, 0o777);
+
+      const result = await withEnvAsync(
+        {
+          OPENCLAW_STATE_DIR: stateDir,
+          CLAWDBOT_STATE_DIR: undefined,
+          OPENCLAW_BUNDLED_PLUGINS_DIR: bundledDir,
+        },
+        async () => discoverOpenClawPlugins({}),
+      );
+
+      expect(result.candidates.some((candidate) => candidate.idHint === "demo-pack")).toBe(true);
+      expect(
+        result.diagnostics.some(
+          (diag) => diag.source === packDir && diag.message.includes("world-writable path"),
+        ),
+      ).toBe(false);
+      expect(fs.statSync(packDir).mode & 0o777).toBe(0o755);
+    },
+  );
+
   it.runIf(process.platform !== "win32" && typeof process.getuid === "function")(
     "blocks suspicious ownership when uid mismatch is detected",
     async () => {

src/plugins/discovery.ts

@@ -153,7 +153,7 @@ function checkPathStatAndPermissions(params: {
       continue;
     }
     seen.add(normalized);
-    const stat = safeStatSync(targetPath);
+    let stat = safeStatSync(targetPath);
     if (!stat) {
       return {
         reason: "path_stat_failed",
@@ -162,7 +162,28 @@ function checkPathStatAndPermissions(params: {
         targetPath,
       };
     }
-    const modeBits = stat.mode & 0o777;
+    let modeBits = stat.mode & 0o777;
+    if ((modeBits & 0o002) !== 0 && params.origin === "bundled") {
+      // npm/global installs can create package-managed extension dirs without
+      // directory entries in the tarball, which may widen them to 0777.
+      // Tighten bundled dirs in place before applying the normal safety gate.
+      try {
+        fs.chmodSync(targetPath, modeBits & ~0o022);
+        const repairedStat = safeStatSync(targetPath);
+        if (!repairedStat) {
+          return {
+            reason: "path_stat_failed",
+            sourcePath: params.source,
+            rootPath: params.rootDir,
+            targetPath,
+          };
+        }
+        stat = repairedStat;
+        modeBits = repairedStat.mode & 0o777;
+      } catch {
+        // Fall through to the normal block path below when repair is not possible.
+      }
+    }
     if ((modeBits & 0o002) !== 0) {
       return {
         reason: "path_world_writable",