diff --git a/tests/tools/test_async_delegation_stale_profile_scope.py b/tests/tools/test_async_delegation_stale_profile_scope.py
new file mode 100644
index 0000000000..970326a8ac
--- /dev/null
+++ b/tests/tools/test_async_delegation_stale_profile_scope.py
@@ -0,0 +1,112 @@
+"""Profile-scope regression for async-delegation stale finalization."""
+
+import sqlite3
+import threading
+import time
+
+import pytest
+
+from hermes_constants import reset_hermes_home_override, set_hermes_home_override
+from tools import async_delegation as ad
+from tools.process_registry import process_registry
+
+
+@pytest.fixture(autouse=True)
+def _clean_async_delegation_state():
+    ad._reset_for_tests()
+    while not process_registry.completion_queue.empty():
+        process_registry.completion_queue.get_nowait()
+    yield
+    ad._monitor_stop.set()
+    ad._reset_for_tests()
+    while not process_registry.completion_queue.empty():
+        process_registry.completion_queue.get_nowait()
+
+
+def _delegation_state(db_path, delegation_id):
+    if not db_path.exists():
+        return None
+    conn = sqlite3.connect(db_path)
+    try:
+        row = conn.execute(
+            "SELECT state FROM async_delegations WHERE delegation_id=?",
+            (delegation_id,),
+        ).fetchone()
+        return None if row is None else row[0]
+    finally:
+        conn.close()
+
+
+def test_stale_monitor_force_finalize_updates_origin_profile_ledger(tmp_path, monkeypatch):
+    """A bare monitor thread must settle the profile that dispatched the unit.
+
+    Normal async workers carry the dispatching ContextVars via
+    ``propagate_context_to_thread``.  The single stale-monitor thread does not:
+    Python starts it with an empty Context, so a forced finalization must not
+    re-resolve ``get_hermes_home()`` to the process launch profile.
+    """
+    launch_home = tmp_path / "launch"
+    profile_home = launch_home / "profiles" / "secondary"
+    profile_home.mkdir(parents=True)
+    monkeypatch.setenv("HERMES_HOME", str(launch_home))
+
+    # We drive the production monitor loop ourselves below so the test controls
+    # exactly when the record becomes expired.
+    monkeypatch.setattr(ad, "_ensure_stale_monitor", lambda: None)
+    monkeypatch.setattr(ad, "_STALE_CHECK_INTERVAL", 0.01)
+    monkeypatch.setattr(ad, "_STALL_GRACE_SECONDS", 0.0)
+
+    gate = threading.Event()
+
+    def runner():
+        gate.wait(timeout=30)
+        return {"status": "completed", "summary": "late runner result"}
+
+    token = set_hermes_home_override(profile_home)
+    try:
+        handle = ad.dispatch_async_delegation(
+            goal="profile-owned stalled task",
+            context=None,
+            toolsets=None,
+            role="leaf",
+            model="test-model",
+            session_key="secondary-session",
+            runner=runner,
+            max_async_children=1,
+            progress_fn=lambda: ("frozen", False),
+        )
+    finally:
+        reset_hermes_home_override(token)
+
+    delegation_id = handle["delegation_id"]
+    profile_db = profile_home / "state.db"
+    launch_db = launch_home / "state.db"
+    assert _delegation_state(profile_db, delegation_id) == "running"
+
+    # Put the live record exactly at the monitor's force-finalize boundary.
+    with ad._records_lock:
+        record = ad._records[delegation_id]
+        record.update(
+            status="stalling",
+            _started=True,
+            _interrupted_at=time.time() - 1,
+            _stall_quiet_seconds=1.0,
+            _stall_threshold_seconds=0.5,
+            _stall_in_tool=False,
+        )
+
+    # This is the production ownership shape: one daemon monitor thread serves
+    # every profile and therefore starts without the dispatching ContextVars.
+    ad._monitor_stop.clear()
+    monitor = threading.Thread(target=ad._stale_monitor_loop, daemon=True)
+    monitor.start()
+    monitor.join(timeout=2)
+    assert not monitor.is_alive()
+
+    try:
+        assert _delegation_state(profile_db, delegation_id) == "stalled"
+        assert _delegation_state(launch_db, delegation_id) is None
+    finally:
+        # The real runner can return after the forced stall; _finalize must then
+        # be a no-op for the already-terminal record.
+        gate.set()
diff --git a/tools/async_delegation.py b/tools/async_delegation.py
index 4659245120..99a0c83b89 100644
--- a/tools/async_delegation.py
+++ b/tools/async_delegation.py
@@ -555,6 +555,9 @@ def _dispatch(
         "slot_key": slot_key or delegation_id,
         # Which of the call's ``goals`` this unit runs (None = all of them).
         **({"task_indexes": list(task_indexes)} if task_indexes is not None else {}),
+        # Durable finalization can run on the one unscoped stale-monitor thread;
+        # retain the dispatching profile so that thread updates the same state.db.
+        "_profile_home": str(get_hermes_home()),
         # Stale-monitor bookkeeping (see _stale_monitor_loop).
         "_progress_token": None, "_progress_ts": dispatched_at, "_interrupted_at": None}
     with _records_lock:
@@ -724,11 +727,19 @@ def _push_completion_event(record: Dict[str, Any], result: Dict[str, Any], statu
         **({} if is_batch else {"exit_reason": result.get("exit_reason")}),
         **{k: record[k] for k in _ROUTING_KEYS if record.get(k)},
         **{k: result[k] for k in _STALL_META_KEYS if k in result}}
+    token = None
     try:
+        profile_home = record.get("_profile_home")
+        if profile_home:
+            from hermes_constants import reset_hermes_home_override, set_hermes_home_override
+            token = set_hermes_home_override(profile_home)
         _persist_completion(evt, result)
     except Exception as exc:  # noqa: BLE001 — a lost durable row is recoverable; a lost result + leaked slot is not
         logger.error(f"Async delegation{label} %s: durable completion write failed; delivering in-memory "
                      "only (a restart may report this unit as unknown): %s", record.get("delegation_id"), exc)
+    finally:
+        if token is not None:
+            reset_hermes_home_override(token)
     try:
         process_registry.completion_queue.put(evt)
     except Exception as exc:  # pragma: no cover