chore: disable external and frontend tools

docs/agent-ui-protocol.md

@@ -77,15 +77,12 @@ is valid only on `map_overlay`; every action and parameter set must be validated
 by the frontend before it can affect MapLibre state. Invalid map actions should
 fall back to `fallbackText`.
 
-Initial mappings:
+There are currently no Agent tool mappings for charts, components, or map
+actions. The protocol types remain documented for compatibility and future
+allowlisted actions.
 
-- `show_chart` -> `chart`
-- `zoom_to_map` -> `map_action`
-- `view_scada` -> `registered_component: ScadaPanel`
-
-When the Agent needs historical SCADA values for a chart or explanation, it
-should call `query_scada_readings` first, then use `view_scada` only to open the
-frontend panel.
+Historical monitoring values for analysis come from the project `source/`
+directory.
 
 ## State Persistence