fix(arch-001,arch-002): permissions before on_activate; activate once per process

app/main.py

@@ -284,22 +284,23 @@ async def lifespan(app: FastAPI):
                 logger.info(f"Plugin {name} is inactive — skipping activation")
                 continue
 
-            # Activate plugin with a FRESH session per plugin to avoid RLS state leakage
+            # Activate plugin ONCE per process (ARCH-002 fix): a fresh session with
-            # RLS fail-closed requires app.current_tenant_id for tenant-table writes.
+            # the first tenant's RLS context satisfies fail-closed RLS for any
-            # Plugin activation may fail on duplicate cron job inserts — this is harmless
+            # tenant-table writes during activation. Plugins that need per-tenant
-            # since cron jobs already exist from previous startups.
+            # data must seed it themselves (e.g. via the default-tenant mechanism).
+            # Calling on_activate once prevents duplicate event listeners, cron
+            # jobs, mini-apps and other contributions at multi-tenant startups.
             plugin_activated = False
-            for tenant_id in all_tenant_ids:
+            if all_tenant_ids:
                 try:
                     async with async_session() as plugin_db:
-                        await set_tenant_context(plugin_db, tenant_id)
+                        await set_tenant_context(plugin_db, all_tenant_ids[0])
                         await plugin.on_activate(plugin_db, container, event_bus)
                         await plugin_db.flush()
                         await plugin_db.commit()
                     plugin_activated = True
                 except Exception as exc:
-                    logger.warning(f"[STARTUP] Plugin {name} activation issue for tenant {tenant_id}: {exc}")
+                    logger.warning(f"[STARTUP] Plugin {name} activation issue: {exc}")
-                    break
 
             if plugin_activated:
                 plugin_record.status = "active"

app/plugins/registry.py

@@ -608,6 +608,22 @@ class PluginRegistry:
         for warning in perm_warnings:
             logger.warning(warning)
 
+        # Register permissions and entity models BEFORE on_activate (ARCH-001 fix):
+        # the activation hook may already rely on its own permissions/entities being
+        # resolvable (e.g. tools declaring required_permission).
+        from app.core.permission_registry import (
+            get_permission_registry,
+            register_plugin_permissions,
+        )
+
+        if plugin.manifest.permissions:
+            register_plugin_permissions(name, plugin.manifest.permissions)
+        get_permission_registry()._active_plugins.add(name)
+        for entity_type, model_class in plugin.get_entity_models().items():
+            from app.services.entity_permission_service import register_entity_model
+
+            register_entity_model(entity_type, model_class)
+
         # Call on_activate hook (registers event listeners)
         await plugin.on_activate(db, self._container, self._event_bus)
 

tests/test_phase_f_agents.py

@@ -530,7 +530,7 @@ class TestAgentPermissions:
         ) as mock_resolve:
             mock_resolve.return_value = _permissions(permissions=["mail:read"])
             with patch(
-                "app.plugins.builtins.ai_assistant.contracts.get_tool_registry",
+                "app.ai.tool_registry.get_tool_registry",
                 return_value=tool_registry,
             ):
                 ctx = await resolve_agent_permissions(
@@ -575,7 +575,7 @@ class TestAgentPermissions:
         ) as mock_resolve:
             mock_resolve.return_value = _permissions(permissions=["mail:read"])
             with patch(
-                "app.plugins.builtins.ai_assistant.contracts.get_tool_registry",
+                "app.ai.tool_registry.get_tool_registry",
                 return_value=tool_registry,
             ):
                 ctx = await resolve_agent_permissions(
@@ -1015,7 +1015,7 @@ class TestContextBuilder:
         ])
 
         with patch(
-            "app.plugins.builtins.ai_assistant.contracts.get_tool_registry",
+            "app.ai.tool_registry.get_tool_registry",
             return_value=tool_registry,
         ):
             messages = await build_agent_context(