fix: honor slack reply threading (#574, thanks @bolismauro)

src/auto-reply/reply/followup-runner.ts

@@ -196,6 +196,7 @@ export function createFollowupRunner(params: {
           | undefined);
       const applyReplyToMode = createReplyToModeFilter(
         resolveReplyToMode(queued.run.config, replyToChannel),
+        { allowTagsWhenOff: replyToChannel === "slack" },
       );
 
       const replyTaggedPayloads: ReplyPayload[] = applyReplyThreading({

src/slack/monitor.tool-result.test.ts

@@ -291,7 +291,7 @@ describe("monitorSlackProvider tool results", () => {
       },
       slack: {
         dm: { enabled: true, policy: "open", allowFrom: ["*"] },
-        replyToMode: "first",
+        replyToMode: "off",
       },
     };
 

src/slack/monitor.ts

@@ -1101,14 +1101,10 @@ export async function monitorSlackProvider(opts: MonitorSlackOpts = {}) {
 
     const incomingThreadTs = message.thread_ts;
     const eventTs = message.event_ts;
+    const messageTs = message.ts ?? eventTs;
     const replyThreadTs =
-      replyToMode === "all"
-        ? (incomingThreadTs ?? message.ts ?? eventTs)
-        : replyToMode === "first"
-          ? incomingThreadTs
-          : undefined;
-    const statusThreadTs =
-      replyThreadTs ?? incomingThreadTs ?? message.ts ?? eventTs;
+      incomingThreadTs ?? (replyToMode === "all" ? messageTs : undefined);
+    const statusThreadTs = replyThreadTs ?? messageTs;
     let didSetStatus = false;
     const onReplyStart = async () => {
       didSetStatus = true;