fix: suppress heartbeat directive acks and add coverage

src/auto-reply/reply.triggers.test.ts

@@ -85,4 +85,39 @@ describe("trigger handling", () => {
     expect(prompt).toContain("Give me the status");
     expect(prompt).not.toContain("/thinking high");
   });
+
+  it("does not emit directive acks for heartbeats with /think", async () => {
+    const rpcMock = vi.spyOn(tauRpc, "runPiRpc").mockResolvedValue({
+      stdout:
+        '{"type":"message_end","message":{"role":"assistant","content":[{"type":"text","text":"ok"}]}}',
+      stderr: "",
+      code: 0,
+      signal: null,
+      killed: false,
+    });
+
+    const res = await getReplyFromConfig(
+      {
+        Body: "HEARTBEAT /think:high",
+        From: "+1003",
+        To: "+1003",
+      },
+      { isHeartbeat: true },
+      {
+        inbound: {
+          reply: {
+            mode: "command",
+            command: ["pi", "{{Body}}"],
+            agent: { kind: "pi" },
+            session: {},
+          },
+        },
+      },
+    );
+
+    const text = Array.isArray(res) ? res[0]?.text : res?.text;
+    expect(text).toBe("ok");
+    expect(text).not.toMatch(/Thinking level set/i);
+    expect(rpcMock).toHaveBeenCalledOnce();
+  });
 });

src/auto-reply/reply.ts

@@ -329,6 +329,7 @@ export async function getReplyFromConfig(
   const isGroup =
     typeof ctx.From === "string" &&
     (ctx.From.includes("@g.us") || ctx.From.startsWith("group:"));
+  const isHeartbeat = opts?.isHeartbeat === true;
 
   let resolvedThinkLevel =
     inlineThink ??
@@ -359,7 +360,7 @@ export async function getReplyFromConfig(
   })();
 
   // Directive-only message => persist session thinking level and return ack
-  if (directiveOnly || combinedDirectiveOnly) {
+  if (!isHeartbeat && (directiveOnly || combinedDirectiveOnly)) {
     if (!inlineThink) {
       cleanupTyping();
       return {
@@ -425,7 +426,7 @@ export async function getReplyFromConfig(
     return noMentions.length === 0;
   })();
 
-  if (verboseDirectiveOnly) {
+  if (!isHeartbeat && verboseDirectiveOnly) {
     if (!inlineVerbose) {
       cleanupTyping();
       return {
@@ -451,7 +452,7 @@ export async function getReplyFromConfig(
   }
 
   // If any directive (think/verbose) is present anywhere, acknowledge immediately and skip agent execution.
-  if (hasThinkDirective || hasVerboseDirective) {
+  if (!isHeartbeat && (hasThinkDirective || hasVerboseDirective)) {
     if (sessionEntry && sessionStore && sessionKey) {
       if (hasThinkDirective && inlineThink) {
         if (inlineThink === "off") {
@@ -694,8 +695,6 @@ export async function getReplyFromConfig(
     return result;
   }
 
-  const isHeartbeat = opts?.isHeartbeat === true;
-
   if (reply && reply.mode === "command") {
     const heartbeatCommand = isHeartbeat
       ? (reply as { heartbeatCommand?: string[] }).heartbeatCommand