diff --git a/src/server/sessions/piSessionService.archiveCleanup.test.ts b/src/server/sessions/piSessionService.archiveCleanup.test.ts
index 6a2b8c2..0c21de3 100644
--- a/src/server/sessions/piSessionService.archiveCleanup.test.ts
+++ b/src/server/sessions/piSessionService.archiveCleanup.test.ts
@@ -1,3 +1,4 @@
+import { resolve } from "node:path";
 import { describe, expect, it, vi } from "vitest";
 import { PiSessionService } from "./piSessionService.js";
 import { SessionNotificationStore } from "./sessionNotificationStore.js";
@@ -29,7 +30,7 @@ describe("PiSessionService archive and cleanup", () => {
     });
 
     await service.status(sessionRef("archive-notification-session"));
-    const generation = store.currentGeneration("archive-notification-session", "/workspace");
+    const generation = store.currentGeneration("archive-notification-session", resolve("/workspace"));
     if (generation === undefined) throw new Error("expected active notification generation");
     store.addNotification(generation, "archive me", "warning");
 
diff --git a/src/server/sessions/piSessionService.lifecycle.test.ts b/src/server/sessions/piSessionService.lifecycle.test.ts
index 8de38b0..006e568 100644
--- a/src/server/sessions/piSessionService.lifecycle.test.ts
+++ b/src/server/sessions/piSessionService.lifecycle.test.ts
@@ -944,7 +944,7 @@ describe("PiSessionService lifecycle, listing, and reload", () => {
       "shutdown before close failure",
       "prior",
     ]);
-    expect(store.currentGeneration("failed-close-reload", "/workspace")).toBeDefined();
+    expect(store.currentGeneration("failed-close-reload", resolve("/workspace"))).toBeDefined();
     await service.stop(sessionRef("failed-close-reload"));
     await service.dispose();
   });
diff --git a/src/server/sessions/piSessionService.ts b/src/server/sessions/piSessionService.ts
index 7322a83..3a76c77 100644
--- a/src/server/sessions/piSessionService.ts
+++ b/src/server/sessions/piSessionService.ts
@@ -689,7 +689,7 @@ export class PiSessionService implements SessionRouteService {
   }
 
   notificationInbox(ref: PiSessionRef): SessionNotificationInboxSnapshot {
-    return this.notificationStore.inboxSnapshot(ref.id, ref.cwd);
+    return this.notificationStore.inboxSnapshot(ref.id, canonicalizeStoredCwd(ref.cwd));
   }
 
   dismissNotification(
@@ -698,7 +698,7 @@ export class PiSessionService implements SessionRouteService {
   ): SessionNotificationInboxSnapshot {
     const result = this.notificationStore.dismissNotification(
       ref.id,
-      ref.cwd,
+      canonicalizeStoredCwd(ref.cwd),
       request.daemonInstanceId,
       request.notificationId,
     );
@@ -712,7 +712,7 @@ export class PiSessionService implements SessionRouteService {
   ): SessionNotificationInboxSnapshot {
     const result = this.notificationStore.dismissAll(
       ref.id,
-      ref.cwd,
+      canonicalizeStoredCwd(ref.cwd),
       request.daemonInstanceId,
       request.throughOrder,
       request.throughOverflowWatermark,
@@ -1692,7 +1692,7 @@ export class PiSessionService implements SessionRouteService {
       return;
     }
     if (isPiSessionRef(ref)) {
-      this.publishNotificationMutations(this.notificationStore.clearSessionIdentity(ref.id, ref.cwd, "runtime-close"));
+      this.publishNotificationMutations(this.notificationStore.clearSessionIdentity(ref.id, canonicalizeStoredCwd(ref.cwd), "runtime-close"));
       return;
     }
     await this.closeActive(ref);