Sessions: persist prompt-token totals without usage

src/auto-reply/reply/agent-runner.misc.runreplyagent.test.ts

@@ -960,6 +960,43 @@ describe("runReplyAgent messaging tool suppression", () => {
     expect(store[sessionKey]?.totalTokensFresh).toBe(true);
     expect(store[sessionKey]?.model).toBe("claude-opus-4-5");
   });
+
+  it("persists totalTokens from promptTokens when provider omits usage", async () => {
+    const storePath = path.join(
+      await fs.mkdtemp(path.join(os.tmpdir(), "openclaw-session-store-")),
+      "sessions.json",
+    );
+    const sessionKey = "main";
+    const entry: SessionEntry = {
+      sessionId: "session",
+      updatedAt: Date.now(),
+      inputTokens: 111,
+      outputTokens: 22,
+    };
+    await saveSessionStore(storePath, { [sessionKey]: entry });
+
+    runEmbeddedPiAgentMock.mockResolvedValueOnce({
+      payloads: [{ text: "hello world!" }],
+      messagingToolSentTexts: ["different message"],
+      messagingToolSentTargets: [{ tool: "slack", provider: "slack", to: "channel:C1" }],
+      meta: {
+        agentMeta: {
+          promptTokens: 41_000,
+          model: "claude-opus-4-5",
+          provider: "anthropic",
+        },
+      },
+    });
+
+    const result = await createRun("slack", { storePath, sessionKey });
+
+    expect(result).toBeUndefined();
+    const store = loadSessionStore(storePath, { skipCache: true });
+    expect(store[sessionKey]?.totalTokens).toBe(41_000);
+    expect(store[sessionKey]?.totalTokensFresh).toBe(true);
+    expect(store[sessionKey]?.inputTokens).toBe(111);
+    expect(store[sessionKey]?.outputTokens).toBe(22);
+  });
 });
 
 describe("runReplyAgent reminder commitment guard", () => {