Sessions: fix sessions_list transcriptPath path resolution

src/config/sessions/paths.ts

@@ -39,13 +39,15 @@ export type SessionFilePathOptions = {
   sessionsDir?: string;
 };
 
+const MULTI_STORE_PATH_SENTINEL = "(multiple)";
+
 export function resolveSessionFilePathOptions(params: {
   agentId?: string;
   storePath?: string;
 }): SessionFilePathOptions | undefined {
   const agentId = params.agentId?.trim();
   const storePath = params.storePath?.trim();
-  if (storePath) {
+  if (storePath && storePath !== MULTI_STORE_PATH_SENTINEL) {
     const sessionsDir = path.dirname(path.resolve(storePath));
     return agentId ? { sessionsDir, agentId } : { sessionsDir };
   }

src/config/sessions/sessions.test.ts

@@ -13,6 +13,7 @@ import {
 import type { SessionConfig } from "../types.base.js";
 import {
   resolveSessionFilePath,
+  resolveSessionFilePathOptions,
   resolveSessionTranscriptPathInDir,
   validateSessionId,
 } from "./paths.js";
@@ -68,6 +69,13 @@ describe("session path safety", () => {
     expect(resolved).toBe(path.resolve(sessionsDir, "sess-1.jsonl"));
   });
 
+  it("ignores multi-store sentinel paths when deriving session file options", () => {
+    expect(resolveSessionFilePathOptions({ agentId: "worker", storePath: "(multiple)" })).toEqual({
+      agentId: "worker",
+    });
+    expect(resolveSessionFilePathOptions({ storePath: "(multiple)" })).toBeUndefined();
+  });
+
   it("accepts symlink-alias session paths that resolve under the sessions dir", () => {
     if (process.platform === "win32") {
       return;