diff --git a/src/codex_memory/__init__.py b/src/codex_memory/__init__.py
index c635b89..3005461 100644
--- a/src/codex_memory/__init__.py
+++ b/src/codex_memory/__init__.py
@@ -12,6 +12,7 @@
 from .delivery import CodexDeliverer
 from .local_security import secure_windows_tree
 from .queue import DurableEventQueue
+from .scope import capture_scope
 from .state import HookState
 
 PROVIDER_ID = "codex_memory"
@@ -44,7 +45,7 @@ def _capture_parts(
         secrets = tuple(dict.fromkeys((*secrets, token)))
     queue = DurableEventQueue(root / "queue")
     builder = CaptureEventBuilder(
-        {"platform": "codex", "agent_id": "codex-cli"},
+        capture_scope(),
         provider_id=PROVIDER_ID,
         secrets=secrets,
     )
@@ -80,7 +81,7 @@ def runtime() -> tuple[
     root = plugin_data()
     token = credential_store(root).get()
     queue, builder, _state = _capture_parts(root, token)
-    client = SubstrateClient(token, timeout=10.0) if token else None
+    client = SubstrateClient(token, timeout=60.0) if token else None
     return client, queue, CodexDeliverer(queue, client), builder
 
 
diff --git a/src/codex_memory/client.py b/src/codex_memory/client.py
index 45a227b..8eb9632 100644
--- a/src/codex_memory/client.py
+++ b/src/codex_memory/client.py
@@ -108,7 +108,7 @@ def validate_connection(self) -> dict[str, Any]:
 class CredentialBoundClient:
     """Mutable hosted client that follows onboarding credential rotation."""
 
-    def __init__(self, store: CredentialStore, *, timeout: float = 10.0) -> None:
+    def __init__(self, store: CredentialStore, *, timeout: float = 60.0) -> None:
         self.store = store
         self.timeout = timeout
         self._mutex = threading.RLock()
diff --git a/src/codex_memory/history.py b/src/codex_memory/history.py
index d5a9c20..8673526 100644
--- a/src/codex_memory/history.py
+++ b/src/codex_memory/history.py
@@ -14,6 +14,7 @@
 
 from .app_server import CodexAppServer, CodexAppServerError
 from .import_checkpoint import HistoryCheckpoint
+from .scope import capture_scope
 
 _MAX_MESSAGES_PER_THREAD = 1000
 _MAX_VISIBLE_CHARS_PER_THREAD = 2_000_000
@@ -222,7 +223,7 @@ def _deliver(self, event: dict[str, Any]) -> tuple[dict[str, Any], int]:
 
     def _builder(self) -> CaptureEventBuilder:
         return CaptureEventBuilder(
-            {"platform": "codex", "agent_id": "codex-cli"},
+            capture_scope(),
             provider_id="codex_memory", secrets=self.secrets,
         )
 
diff --git a/src/codex_memory/hook.py b/src/codex_memory/hook.py
index f7af477..16afa8a 100644
--- a/src/codex_memory/hook.py
+++ b/src/codex_memory/hook.py
@@ -12,6 +12,7 @@
 from substrate_capture.events import content_digest
 
 from . import capture_runtime, hook_runtime
+from .scope import recall_scope
 
 _MAX_STDIN_BYTES = 4 * 1024 * 1024
 _MAX_CAPTURE_CHARS = 200_000
@@ -172,7 +173,9 @@ def _recall_result(
         return callback(prompt[:_MAX_RECALL_QUERY_CHARS], 5)
     if client is None:
         return None
-    return client.memory_search(prompt[:_MAX_RECALL_QUERY_CHARS], limit=5)
+    return client.memory_search(
+        prompt[:_MAX_RECALL_QUERY_CHARS], limit=5, scope=recall_scope()
+    )
 
 
 def _canonical_entity_path(item: dict[str, Any]) -> str | None:
diff --git a/src/codex_memory/scope.py b/src/codex_memory/scope.py
new file mode 100644
index 0000000..20864c1
--- /dev/null
+++ b/src/codex_memory/scope.py
@@ -0,0 +1,24 @@
+"""Stable single-user identity scope inside each authenticated Substrate tenant."""
+from __future__ import annotations
+
+CODEX_PLATFORM = "codex"
+CODEX_USER_ID = "owner"
+CODEX_AGENT_ID = "codex-cli"
+
+
+def capture_scope() -> dict[str, str]:
+    """Return a fresh scope shared by live hooks, tools, and history replay."""
+    return {
+        "platform": CODEX_PLATFORM,
+        "user_id": CODEX_USER_ID,
+        "agent_id": CODEX_AGENT_ID,
+    }
+
+
+def recall_scope() -> dict[str, str]:
+    """Return the matching canonical-recall identity scope."""
+    return {
+        "platform": CODEX_PLATFORM,
+        "user_id": CODEX_USER_ID,
+        "agent_id": CODEX_AGENT_ID,
+    }
diff --git a/src/codex_memory/tools.py b/src/codex_memory/tools.py
index b858c81..1909690 100644
--- a/src/codex_memory/tools.py
+++ b/src/codex_memory/tools.py
@@ -13,6 +13,7 @@
 
 from .client import SubstrateClient
 from .onboarding import OnboardingError, OnboardingManager
+from .scope import recall_scope
 
 _MAX_QUERY = 4096
 _MAX_CONTENT = 200_000
@@ -34,7 +35,7 @@ def refresh_client() -> SubstrateClient | None:
         nonlocal client
         token = onboarding.store.get()
         if token and (client is None or client.api_key != token):
-            client = SubstrateClient(token, timeout=10.0)
+            client = SubstrateClient(token, timeout=60.0)
             deliverer.client = client
         return client
 
@@ -68,7 +69,7 @@ def search(args: dict[str, Any]) -> dict[str, Any]:
         return guard(
             lambda: {
                 "results": require_client().memory_search(
-                    text(args, "query"), limit=limit(args), scope={"platform": "codex"}
+                    text(args, "query"), limit=limit(args), scope=recall_scope()
                 ).get("results", [])
             }
         )
diff --git a/tests/test_codex_tools.py b/tests/test_codex_tools.py
index 32dbe90..97fee83 100644
--- a/tests/test_codex_tools.py
+++ b/tests/test_codex_tools.py
@@ -15,6 +15,7 @@
 from substrate_capture.spool import DurableSpool  # noqa: E402
 from substrate_capture.client import SubstrateAPIError  # noqa: E402
 from codex_memory.queue import DurableEventQueue  # noqa: E402
+from codex_memory.scope import capture_scope, recall_scope  # noqa: E402
 
 
 class EmptyStore(CredentialStore):
@@ -30,6 +31,24 @@ def delete(self, slot: str = "access-token") -> None:
         pass
 
 
+def test_codex_owner_scope_matches_capture_and_canonical_recall() -> None:
+    assert capture_scope() == {
+        "platform": "codex",
+        "user_id": "owner",
+        "agent_id": "codex-cli",
+    }
+    assert recall_scope() == {
+        "platform": "codex",
+        "user_id": "owner",
+        "agent_id": "codex-cli",
+    }
+    event = CaptureEventBuilder(capture_scope(), provider_id="codex_memory").payload_event(
+        "turn", "session", {"content": "safe"}
+    )
+    assert event["scope"]["subject_id"]
+    assert event["scope"]["user_id"] == recall_scope()["user_id"]
+
+
 class WikiClient:
     api_key = "test-placeholder-key"
 
@@ -39,7 +58,11 @@ def search(self, query: str, *, limit: int) -> dict[str, Any]:
     def memory_search(
         self, query: str, *, limit: int, scope: dict[str, Any] | None = None
     ) -> dict[str, Any]:
-        return {"results": [{"surface": "canonical", "query": query, "limit": limit}]}
+        return {
+            "results": [
+                {"surface": "canonical", "query": query, "limit": limit, "scope": scope}
+            ]
+        }
 
     def job_status(self, job_id: str) -> dict[str, Any]:
         return {"job_id": job_id, "status": "queued"}
@@ -66,7 +89,18 @@ def test_codex_tools_use_wiki_search_job_status_and_truthful_queue_status(
     }
     assert tools["substrate_search"].handler({"query": "decision", "limit": 3}) == {
         "ok": True,
-        "results": [{"surface": "canonical", "query": "decision", "limit": 3}],
+        "results": [
+            {
+                "surface": "canonical",
+                "query": "decision",
+                "limit": 3,
+                "scope": {
+                    "platform": "codex",
+                    "user_id": "owner",
+                    "agent_id": "codex-cli",
+                },
+            }
+        ],
     }
     assert tools["substrate_wiki_search"].handler({"query": "pages", "limit": 2}) == {
         "ok": True,
diff --git a/tests/test_history_import.py b/tests/test_history_import.py
index 16a47c3..fb2502d 100644
--- a/tests/test_history_import.py
+++ b/tests/test_history_import.py
@@ -78,6 +78,8 @@ def test_import_is_deterministic_resumable_and_checkpoint_content_free(tmp_path:
     first_ids = [event["event_id"] for event in client.events]
     assert len(first_ids) == len(set(first_ids))
     assert {event["capture_origin"] for event in client.events} == {"history_replay"}
+    assert {event["scope"]["user_id"] for event in client.events} == {"owner"}
+    assert {event["scope"]["platform"] for event in client.events} == {"codex"}
     importer.close()
 
     raw = b"".join(path.read_bytes() for path in (tmp_path / "imports").glob("checkpoint.sqlite3*"))
diff --git a/tests/test_hosted_onboarding.py b/tests/test_hosted_onboarding.py
index 3432633..f435a99 100644
--- a/tests/test_hosted_onboarding.py
+++ b/tests/test_hosted_onboarding.py
@@ -141,6 +141,7 @@ def test_running_mcp_client_refreshes_after_setup_and_credential_repair(tmp_path
     store = MemoryStore()
     oauth = OAuth()
     client = CredentialBoundClient(store)
+    assert client.timeout == 60.0
     manager = OnboardingManager(
         tmp_path, api=oauth, store=store,
         capability_check=lambda _token: {}, credential_changed=client.refresh,
diff --git a/tests/test_native_hooks.py b/tests/test_native_hooks.py
index e9eadf2..67750b7 100644
--- a/tests/test_native_hooks.py
+++ b/tests/test_native_hooks.py
@@ -13,11 +13,31 @@
 sys.path.insert(0, str(Path(__file__).parents[1] / "src"))
 
 from codex_memory import capture_runtime  # noqa: E402
-from codex_memory.hook import handle, main  # noqa: E402
+from codex_memory.hook import _recall_result, handle, main  # noqa: E402
 from codex_memory.state import HookState  # noqa: E402
 from substrate_capture.client import SubstrateClient  # noqa: E402
 
 
+def test_native_recall_uses_the_same_owner_and_agent_scope_as_capture() -> None:
+    observed: list[tuple[str, int, dict[str, object]]] = []
+
+    class Client:
+        def memory_search(
+            self, query: str, *, limit: int, scope: dict[str, object]
+        ) -> dict[str, object]:
+            observed.append((query, limit, scope))
+            return {"results": []}
+
+    assert _recall_result(None, "decision", Client()) == {"results": []}
+    assert observed == [
+        (
+            "decision",
+            5,
+            {"platform": "codex", "user_id": "owner", "agent_id": "codex-cli"},
+        )
+    ]
+
+
 def _events() -> list[dict[str, object]]:
     queue, _builder, _state = capture_runtime()
     values = []
@@ -87,6 +107,8 @@ def test_native_hooks_capture_exact_turn_lineage_and_dedupe(
     ]
     assert all(event["payload"]["turn_id"] == "turn-1" for event in turns)
     assert all(event["payload"]["session_id"] == "session-1" for event in turns)
+    assert all(event["scope"]["user_id"] == "owner" for event in turns)
+    assert all(event["scope"]["platform"] == "codex" for event in turns)