feat(telemetry): add isolated beta quality diagnostics and release identity

src/langbot/pkg/agent/runner/platform_tools.py

@@ -2,6 +2,8 @@
 
 from __future__ import annotations
 
+from ...telemetry import diagnostics
+
 import copy
 import fnmatch
 import typing
@@ -667,6 +669,7 @@ def resolve_platform_api_call(session, bot_uuid, action, params, context_tool=No
     raise ValueError(f'Platform API {action} or its target is not authorized for this run')
 
 
+@diagnostics.observe('api', 'host.platform_tool', source='agent')
 async def execute_platform_tool(
     ap: typing.Any,
     execution_context: typing.Any,
@@ -686,6 +689,7 @@ async def execute_platform_tool(
         normalized = _event_params(definition, context, normalized)
     # This flag is frozen by the Host from the synthetic debug envelope, not tool arguments.
     if delivery.get('surface') == 'webui' and (delivery.get('platform_capabilities') or {}).get('debug_mock') is True:
+        diagnostics.annotate(source='webui_debug', attributes={'synthetic': True})
         result = _execute_mock_platform_tool(definition, context, normalized)
         if message_chain is not None:
             result['parameters']['message'] = message_chain.model_dump(mode='json')