diff --git a/src/plugins/bundled-runtime-mirror.test.ts b/src/plugins/bundled-runtime-mirror.test.ts
index 31986c47a4c..5f264769e0c 100644
--- a/src/plugins/bundled-runtime-mirror.test.ts
+++ b/src/plugins/bundled-runtime-mirror.test.ts
@@ -19,13 +19,13 @@ afterEach(() => {
 });
 
 describe("refreshBundledPluginRuntimeMirrorRoot", () => {
-  it("refreshes stale mirrors without deleting the active target root", () => {
+  it("refreshes stale mirrors without leaving removed source files behind", () => {
     const root = makeTempRoot();
     const sourceRoot = path.join(root, "source");
     const targetRoot = path.join(root, "target");
     fs.mkdirSync(sourceRoot, { recursive: true });
     fs.mkdirSync(targetRoot, { recursive: true });
-    fs.writeFileSync(path.join(sourceRoot, "index.js"), "export const value = 'v1';\n", "utf8");
+    fs.writeFileSync(path.join(sourceRoot, "old.js"), "export const value = 'v1';\n", "utf8");
 
     expect(
       refreshBundledPluginRuntimeMirrorRoot({
@@ -35,8 +35,8 @@ describe("refreshBundledPluginRuntimeMirrorRoot", () => {
       }),
     ).toBe(true);
 
-    fs.writeFileSync(path.join(sourceRoot, "index.js"), "export const value = 'v2';\n", "utf8");
-    fs.writeFileSync(path.join(targetRoot, "inflight-import.js"), "still readable\n", "utf8");
+    fs.rmSync(path.join(sourceRoot, "old.js"));
+    fs.writeFileSync(path.join(sourceRoot, "new.js"), "export const value = 'v2';\n", "utf8");
 
     expect(
       refreshBundledPluginRuntimeMirrorRoot({
@@ -46,9 +46,47 @@ describe("refreshBundledPluginRuntimeMirrorRoot", () => {
       }),
     ).toBe(true);
 
-    expect(fs.readFileSync(path.join(targetRoot, "index.js"), "utf8")).toContain("v2");
-    expect(fs.readFileSync(path.join(targetRoot, "inflight-import.js"), "utf8")).toBe(
-      "still readable\n",
-    );
+    expect(fs.readdirSync(targetRoot).toSorted()).toEqual([
+      ".openclaw-runtime-mirror.json",
+      "new.js",
+    ]);
+    expect(fs.readFileSync(path.join(targetRoot, "new.js"), "utf8")).toContain("v2");
+    expect(
+      refreshBundledPluginRuntimeMirrorRoot({
+        pluginId: "demo",
+        sourceRoot,
+        targetRoot,
+      }),
+    ).toBe(false);
+  });
+
+  it("replaces stale target entries when the source changes type", () => {
+    const root = makeTempRoot();
+    const sourceRoot = path.join(root, "source");
+    const targetRoot = path.join(root, "target");
+    fs.mkdirSync(path.join(sourceRoot, "entry"), { recursive: true });
+    fs.writeFileSync(path.join(sourceRoot, "entry", "index.js"), "export const value = 1;\n");
+
+    expect(
+      refreshBundledPluginRuntimeMirrorRoot({
+        pluginId: "demo",
+        sourceRoot,
+        targetRoot,
+      }),
+    ).toBe(true);
+
+    fs.rmSync(path.join(sourceRoot, "entry"), { recursive: true, force: true });
+    fs.writeFileSync(path.join(sourceRoot, "entry"), "export const value = 2;\n");
+
+    expect(
+      refreshBundledPluginRuntimeMirrorRoot({
+        pluginId: "demo",
+        sourceRoot,
+        targetRoot,
+      }),
+    ).toBe(true);
+
+    expect(fs.lstatSync(path.join(targetRoot, "entry")).isFile()).toBe(true);
+    expect(fs.readFileSync(path.join(targetRoot, "entry"), "utf8")).toContain("2");
   });
 });
diff --git a/src/plugins/bundled-runtime-mirror.ts b/src/plugins/bundled-runtime-mirror.ts
index 36506424e04..ffb8a1148be 100644
--- a/src/plugins/bundled-runtime-mirror.ts
+++ b/src/plugins/bundled-runtime-mirror.ts
@@ -74,7 +74,10 @@ export function copyBundledPluginRuntimeRoot(sourceRoot: string, targetRoot: str
   pruneStaleBundledRuntimeMirrorEntries(targetRoot, mirroredNames);
 }
 
-function pruneStaleBundledRuntimeMirrorEntries(targetRoot: string, mirroredNames: Set<string>): void {
+function pruneStaleBundledRuntimeMirrorEntries(
+  targetRoot: string,
+  mirroredNames: Set<string>,
+): void {
   for (const entry of fs.readdirSync(targetRoot, { withFileTypes: true })) {
     if (shouldIgnoreBundledRuntimeMirrorEntry(entry.name)) {
       continue;