fix: persist topic session files

src/auto-reply/reply.ts

@@ -722,9 +722,7 @@ export async function getReplyFromConfig(
     resolvedThinkLevel = await modelState.resolveDefaultThinkingLevel();
   }
   const sessionIdFinal = sessionId ?? crypto.randomUUID();
-  const sessionFile = resolveSessionFilePath(sessionIdFinal, sessionEntry, {
-    topicId: ctx.MessageThreadId,
-  });
+  const sessionFile = resolveSessionFilePath(sessionIdFinal, sessionEntry);
   const queueBodyBase = transcribedText
     ? [threadStarterNote, baseBodyFinal, `Transcript:\n${transcribedText}`]
         .filter(Boolean)

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

@@ -82,4 +82,31 @@ describe("initSessionState thread forking", () => {
     };
     expect(parsedHeader.parentSession).toBe(parentSessionFile);
   });
+
+  it("records topic-specific session files when MessageThreadId is present", async () => {
+    const root = await fs.mkdtemp(
+      path.join(os.tmpdir(), "clawdbot-topic-session-"),
+    );
+    const storePath = path.join(root, "sessions.json");
+
+    const cfg = {
+      session: { store: storePath },
+    } as ClawdbotConfig;
+
+    const result = await initSessionState({
+      ctx: {
+        Body: "Hello topic",
+        SessionKey: "agent:main:telegram:group:123:topic:456",
+        MessageThreadId: 456,
+      },
+      cfg,
+      commandAuthorized: true,
+    });
+
+    const sessionFile = result.sessionEntry.sessionFile;
+    expect(sessionFile).toBeTruthy();
+    expect(path.basename(sessionFile ?? "")).toBe(
+      `${result.sessionEntry.sessionId}-topic-456.jsonl`,
+    );
+  });
 });

src/auto-reply/reply/session.ts

@@ -17,6 +17,7 @@ import {
   resolveGroupSessionKey,
   resolveSessionFilePath,
   resolveSessionKey,
+  resolveSessionTranscriptPath,
   resolveStorePath,
   type SessionEntry,
   type SessionScope,
@@ -255,6 +256,13 @@ export async function initSessionState(params: {
       sessionEntry.sessionFile = forked.sessionFile;
     }
   }
+  if (!sessionEntry.sessionFile) {
+    sessionEntry.sessionFile = resolveSessionTranscriptPath(
+      sessionEntry.sessionId,
+      agentId,
+      ctx.MessageThreadId,
+    );
+  }
   sessionStore[sessionKey] = sessionEntry;
   await saveSessionStore(storePath, sessionStore);