diff --git a/CHANGELOG.md b/CHANGELOG.md
index 23741207ef6..847bf215a68 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -151,6 +151,7 @@ Docs: https://docs.openclaw.ai
 - Cron/Failure alerts: add configurable repeated-failure alerting with per-job overrides and Web UI cron editor support (`inherit|disabled|custom` with threshold/cooldown/channel/target fields). (#24789) Thanks @0xbrak.
 - Cron/Isolated model defaults: resolve isolated cron `subagents.model` (including object-form `primary`) through allowlist-aware model selection so isolated cron runs honor subagent model defaults unless explicitly overridden by job payload model. (#11474) Thanks @AnonO6.
 - Cron/Isolated sessions list: persist the intended pre-run model/provider on isolated cron session entries so `sessions_list` reflects payload/session model overrides even when runs fail before post-run telemetry persistence. (#21279) Thanks @altaywtf.
+- Cron tool/update flat params: recover top-level update patch fields when models omit the `patch` wrapper, and allow flattened update keys through tool input schema validation so `cron.update` no longer fails with `patch required` for valid flat payloads. (#23221)
 - Agents/Message tool scoping: include other configured channels in scoped `message` tool action enum + description so isolated/cron runs can discover and invoke cross-channel actions without schema validation failures. Landed from contributor PR #20840 by @altaywtf. Thanks @altaywtf.
 - Web UI/Chat sessions: add a cron-session visibility toggle in the session selector, fix cron-key detection across `cron:*` and `agent:*:cron:*` formats, and localize the new control labels/tooltips. (#26976) Thanks @ianderrington.
 - Web UI/Cron jobs: add schedule-kind and last-run-status filters to the Jobs list, with reset control and client-side filtering over loaded results. (#9510) Thanks @guxu11.
diff --git a/src/agents/tools/cron-tool.test.ts b/src/agents/tools/cron-tool.test.ts
index d1a1bb429bc..6d615b47945 100644
--- a/src/agents/tools/cron-tool.test.ts
+++ b/src/agents/tools/cron-tool.test.ts
@@ -512,4 +512,50 @@ describe("cron tool", () => {
     ).rejects.toThrow('delivery.mode="webhook" requires delivery.to to be a valid http(s) URL');
     expect(callGatewayMock).toHaveBeenCalledTimes(0);
   });
+
+  it("recovers flat patch params for update action", async () => {
+    callGatewayMock.mockResolvedValueOnce({ ok: true });
+
+    const tool = createCronTool();
+    await tool.execute("call-update-flat", {
+      action: "update",
+      jobId: "job-1",
+      name: "new-name",
+      enabled: false,
+    });
+
+    expect(callGatewayMock).toHaveBeenCalledTimes(1);
+    const call = callGatewayMock.mock.calls[0]?.[0] as {
+      method?: string;
+      params?: { id?: string; patch?: { name?: string; enabled?: boolean } };
+    };
+    expect(call.method).toBe("cron.update");
+    expect(call.params?.id).toBe("job-1");
+    expect(call.params?.patch?.name).toBe("new-name");
+    expect(call.params?.patch?.enabled).toBe(false);
+  });
+
+  it("recovers additional flat patch params for update action", async () => {
+    callGatewayMock.mockResolvedValueOnce({ ok: true });
+
+    const tool = createCronTool();
+    await tool.execute("call-update-flat-extra", {
+      action: "update",
+      id: "job-2",
+      sessionTarget: "main",
+      failureAlert: { after: 3, cooldownMs: 60_000 },
+    });
+
+    const call = callGatewayMock.mock.calls[0]?.[0] as {
+      method?: string;
+      params?: {
+        id?: string;
+        patch?: { sessionTarget?: string; failureAlert?: { after?: number; cooldownMs?: number } };
+      };
+    };
+    expect(call.method).toBe("cron.update");
+    expect(call.params?.id).toBe("job-2");
+    expect(call.params?.patch?.sessionTarget).toBe("main");
+    expect(call.params?.patch?.failureAlert).toEqual({ after: 3, cooldownMs: 60_000 });
+  });
 });
diff --git a/src/agents/tools/cron-tool.ts b/src/agents/tools/cron-tool.ts
index d2a019c21e6..14df6901024 100644
--- a/src/agents/tools/cron-tool.ts
+++ b/src/agents/tools/cron-tool.ts
@@ -28,23 +28,26 @@ const REMINDER_CONTEXT_TOTAL_MAX = 700;
 const REMINDER_CONTEXT_MARKER = "\n\nRecent context:\n";
 
 // Flattened schema: runtime validates per-action requirements.
-const CronToolSchema = Type.Object({
-  action: stringEnum(CRON_ACTIONS),
-  gatewayUrl: Type.Optional(Type.String()),
-  gatewayToken: Type.Optional(Type.String()),
-  timeoutMs: Type.Optional(Type.Number()),
-  includeDisabled: Type.Optional(Type.Boolean()),
-  job: Type.Optional(Type.Object({}, { additionalProperties: true })),
-  jobId: Type.Optional(Type.String()),
-  id: Type.Optional(Type.String()),
-  patch: Type.Optional(Type.Object({}, { additionalProperties: true })),
-  text: Type.Optional(Type.String()),
-  mode: optionalStringEnum(CRON_WAKE_MODES),
-  runMode: optionalStringEnum(CRON_RUN_MODES),
-  contextMessages: Type.Optional(
-    Type.Number({ minimum: 0, maximum: REMINDER_CONTEXT_MESSAGES_MAX }),
-  ),
-});
+const CronToolSchema = Type.Object(
+  {
+    action: stringEnum(CRON_ACTIONS),
+    gatewayUrl: Type.Optional(Type.String()),
+    gatewayToken: Type.Optional(Type.String()),
+    timeoutMs: Type.Optional(Type.Number()),
+    includeDisabled: Type.Optional(Type.Boolean()),
+    job: Type.Optional(Type.Object({}, { additionalProperties: true })),
+    jobId: Type.Optional(Type.String()),
+    id: Type.Optional(Type.String()),
+    patch: Type.Optional(Type.Object({}, { additionalProperties: true })),
+    text: Type.Optional(Type.String()),
+    mode: optionalStringEnum(CRON_WAKE_MODES),
+    runMode: optionalStringEnum(CRON_RUN_MODES),
+    contextMessages: Type.Optional(
+      Type.Number({ minimum: 0, maximum: REMINDER_CONTEXT_MESSAGES_MAX }),
+    ),
+  },
+  { additionalProperties: true },
+);
 
 type CronToolOptions = {
   agentSessionKey?: string;
@@ -435,6 +438,42 @@ Use jobId as the canonical identifier; id is accepted for compatibility. Use con
           if (!id) {
             throw new Error("jobId required (id accepted for backward compatibility)");
           }
+
+          // Flat-params recovery for patch
+          if (
+            !params.patch ||
+            (typeof params.patch === "object" &&
+              params.patch !== null &&
+              Object.keys(params.patch as Record<string, unknown>).length === 0)
+          ) {
+            const PATCH_KEYS: ReadonlySet<string> = new Set([
+              "name",
+              "schedule",
+              "payload",
+              "delivery",
+              "enabled",
+              "description",
+              "deleteAfterRun",
+              "agentId",
+              "sessionKey",
+              "sessionTarget",
+              "wakeMode",
+              "failureAlert",
+              "allowUnsafeExternalContent",
+            ]);
+            const synthetic: Record<string, unknown> = {};
+            let found = false;
+            for (const key of Object.keys(params)) {
+              if (PATCH_KEYS.has(key) && params[key] !== undefined) {
+                synthetic[key] = params[key];
+                found = true;
+              }
+            }
+            if (found) {
+              params.patch = synthetic;
+            }
+          }
+
           if (!params.patch || typeof params.patch !== "object") {
             throw new Error("patch required");
           }