diff --git a/server/src/chat/timer.rs b/server/src/chat/timer.rs
index a40ef1fd..3339db6a 100644
--- a/server/src/chat/timer.rs
+++ b/server/src/chat/timer.rs
@@ -935,4 +935,50 @@ mod tests {
         assert!(result.contains("421_story_foo"), "unexpected: {result}");
         assert!(result.contains("Pending timers"), "unexpected: {result}");
     }
+
+    // ── AC: firing a timer for a backlog story moves it to current ───────
+
+    /// When a timer fires for a story in backlog, the tick loop calls
+    /// `move_story_to_current` before `start_agent`.  This test exercises
+    /// that exact sequence (minus the agent pool) to prove the story ends
+    /// up in `2_current/` after firing.
+    #[test]
+    fn fired_timer_for_backlog_story_moves_to_current() {
+        use std::fs;
+
+        let dir = TempDir::new().unwrap();
+        let root = dir.path();
+        let backlog = root.join(".storkit/work/1_backlog");
+        let current = root.join(".storkit/work/2_current");
+        fs::create_dir_all(&backlog).unwrap();
+        fs::create_dir_all(&current).unwrap();
+        fs::write(backlog.join("421_story_foo.md"), "---\nname: Foo\n---\n").unwrap();
+
+        // Add a past timer so take_due returns it immediately.
+        let store = TimerStore::load(root.join("timers.json"));
+        let past = Utc::now() - Duration::seconds(1);
+        store.add("421_story_foo".to_string(), past).unwrap();
+
+        // Drain due timers — same as the tick loop does.
+        let due = store.take_due(Utc::now());
+        assert_eq!(due.len(), 1, "expected one fired timer");
+
+        // Apply the move-to-current step the tick loop performs.
+        for entry in &due {
+            crate::agents::lifecycle::move_story_to_current(root, &entry.story_id)
+                .expect("move_story_to_current should succeed for backlog story");
+        }
+
+        // Story must now be in 2_current/, not in 1_backlog/.
+        assert!(
+            current.join("421_story_foo.md").exists(),
+            "story should be in 2_current/ after timer fires"
+        );
+        assert!(
+            !backlog.join("421_story_foo.md").exists(),
+            "story should no longer be in 1_backlog/ after timer fires"
+        );
+        // Timer was consumed.
+        assert!(store.list().is_empty(), "fired timer should be removed from store");
+    }
 }