diff --git a/src/plugins/contracts/session-entry-projection.contract.test.ts b/src/plugins/contracts/session-entry-projection.contract.test.ts
index 95364fdba32..c6ec858ed6d 100644
--- a/src/plugins/contracts/session-entry-projection.contract.test.ts
+++ b/src/plugins/contracts/session-entry-projection.contract.test.ts
@@ -8,7 +8,7 @@ import { afterEach, beforeEach, describe, expect, it } from "vitest";
 import { loadSessionStore, updateSessionStore, type SessionEntry } from "../../config/sessions.js";
 import { withTempConfig } from "../../gateway/test-temp-config.js";
 import { resolvePreferredOpenClawTmpDir } from "../../infra/tmp-openclaw-dir.js";
-import { runPluginHostCleanup } from "../host-hook-cleanup.js";
+import { cleanupReplacedPluginHostRegistry, runPluginHostCleanup } from "../host-hook-cleanup.js";
 import { clearPluginHostRuntimeState } from "../host-hook-runtime.js";
 import { patchPluginSessionExtension } from "../host-hook-state.js";
 import type { PluginJsonValue } from "../host-hooks.js";
@@ -499,6 +499,89 @@ describe("plugin session extension SessionEntry projection", () => {
     }
   });
 
+  it("clears stale promoted SessionEntry slots on plugin restart without deleting extension state", async () => {
+    const previousFixture = createPluginRegistryFixture();
+    registerTestPlugin({
+      registry: previousFixture.registry,
+      config: previousFixture.config,
+      record: createPluginRecord({ id: "restart-promoted-plugin", name: "Restart" }),
+      register(api) {
+        api.registerSessionExtension({
+          namespace: "workflow",
+          description: "promoted workflow",
+          sessionEntrySlotKey: "approvalSnapshot",
+        });
+      },
+    });
+    const nextFixture = createPluginRegistryFixture();
+    registerTestPlugin({
+      registry: nextFixture.registry,
+      config: nextFixture.config,
+      record: createPluginRecord({ id: "restart-promoted-plugin", name: "Restart" }),
+      register(api) {
+        api.registerSessionExtension({
+          namespace: "workflow",
+          description: "promoted workflow",
+        });
+      },
+    });
+    setActivePluginRegistry(previousFixture.registry.registry);
+
+    const stateDir = await fs.mkdtemp(
+      path.join(resolvePreferredOpenClawTmpDir(), "openclaw-host-hooks-slot-restart-cleanup-"),
+    );
+    const storePath = path.join(stateDir, "sessions.json");
+    const tempConfig = { session: { store: storePath } };
+    const previousStateDir = process.env.OPENCLAW_STATE_DIR;
+    try {
+      process.env.OPENCLAW_STATE_DIR = stateDir;
+      await withTempConfig({
+        cfg: tempConfig,
+        run: async () => {
+          await updateSessionStore(storePath, (store) => {
+            store["agent:main:main"] = {
+              sessionId: "session-id",
+              updatedAt: Date.now(),
+            } as unknown as SessionEntry;
+          });
+          await expect(
+            patchPluginSessionExtension({
+              cfg: tempConfig as never,
+              sessionKey: "agent:main:main",
+              pluginId: "restart-promoted-plugin",
+              namespace: "workflow",
+              value: { state: "waiting" },
+            }),
+          ).resolves.toMatchObject({ ok: true });
+
+          await expect(
+            cleanupReplacedPluginHostRegistry({
+              cfg: tempConfig as never,
+              previousRegistry: previousFixture.registry.registry,
+              nextRegistry: nextFixture.registry.registry,
+            }),
+          ).resolves.toMatchObject({ failures: [] });
+
+          const stored = loadSessionStore(storePath, { skipCache: true });
+          const entry = stored["agent:main:main"] as unknown as Record<string, unknown>;
+          expect(entry.approvalSnapshot).toBeUndefined();
+          expect(entry.pluginExtensions).toEqual({
+            "restart-promoted-plugin": {
+              workflow: { state: "waiting" },
+            },
+          });
+        },
+      });
+    } finally {
+      if (previousStateDir === undefined) {
+        delete process.env.OPENCLAW_STATE_DIR;
+      } else {
+        process.env.OPENCLAW_STATE_DIR = previousStateDir;
+      }
+      await fs.rm(stateDir, { recursive: true, force: true });
+    }
+  });
+
   it("exposes scoped session extension reads to trusted tool policies", async () => {
     const seen: unknown[] = [];
     const seenConfig: unknown[] = [];
diff --git a/src/plugins/host-hook-cleanup.ts b/src/plugins/host-hook-cleanup.ts
index 3fa2613a214..7840daf6ff6 100644
--- a/src/plugins/host-hook-cleanup.ts
+++ b/src/plugins/host-hook-cleanup.ts
@@ -150,6 +150,42 @@ async function clearPluginOwnedSessionStores(params: {
   return cleared;
 }
 
+async function clearPromotedSessionEntrySlotStores(params: {
+  cfg: OpenClawConfig;
+  pluginId?: string;
+  sessionKey?: string;
+  sessionEntrySlotKeys: ReadonlySet<string>;
+}): Promise<number> {
+  if ((!params.pluginId && !params.sessionKey) || params.sessionEntrySlotKeys.size === 0) {
+    return 0;
+  }
+  const storePaths = new Set(
+    resolveAllAgentSessionStoreTargetsSync(params.cfg)
+      .map((target) => target.storePath)
+      .filter((storePath) => fs.existsSync(storePath)),
+  );
+  let cleared = 0;
+  for (const storePath of storePaths) {
+    cleared += await updateSessionStore(storePath, (store) => {
+      let clearedInStore = 0;
+      const now = Date.now();
+      for (const [entryKey, entry] of Object.entries(store)) {
+        if (
+          !matchesCleanupSession(entryKey, entry, params.sessionKey) ||
+          !hasPromotedSessionEntrySlot(entry, params.sessionEntrySlotKeys)
+        ) {
+          continue;
+        }
+        clearPromotedSessionEntrySlots(entry, params.sessionEntrySlotKeys);
+        entry.updatedAt = now;
+        clearedInStore += 1;
+      }
+      return clearedInStore;
+    });
+  }
+  return cleared;
+}
+
 function collectSessionEntrySlotKeys(
   registry: PluginRegistry | null | undefined,
   pluginId?: string,
@@ -192,14 +228,22 @@ export async function runPluginHostCleanup(params: {
     params.pluginId,
   );
   let persistentCleanupCount = 0;
-  if (params.reason !== "restart" && shouldCleanup()) {
+  if (shouldCleanup()) {
     try {
-      persistentCleanupCount = await clearPluginOwnedSessionStores({
-        cfg: params.cfg ?? getRuntimeConfig(),
-        pluginId: params.pluginId,
-        sessionKey: params.sessionKey,
-        sessionEntrySlotKeys,
-      });
+      persistentCleanupCount =
+        params.reason === "restart"
+          ? await clearPromotedSessionEntrySlotStores({
+              cfg: params.cfg ?? getRuntimeConfig(),
+              pluginId: params.pluginId,
+              sessionKey: params.sessionKey,
+              sessionEntrySlotKeys,
+            })
+          : await clearPluginOwnedSessionStores({
+              cfg: params.cfg ?? getRuntimeConfig(),
+              pluginId: params.pluginId,
+              sessionKey: params.sessionKey,
+              sessionEntrySlotKeys,
+            });
     } catch (error) {
       failures.push({
         pluginId: params.pluginId ?? "plugin-host",