Script execution failures were only written to Serilog, never to the
site event log — SiteRuntime did not reference the SiteEventLogging
project. ScriptExecutionActor now resolves ISiteEventLogger and emits a
'script'/'Error' event on timeout and exception.
The event-log query handler was a per-node actor bound to that node's
local SQLite. A ClusterClient query could land on the standby (which
records no events) and return nothing. The handler is now a cluster
singleton with a proxy, so queries always reach the active node.
Phases 1+2 of the design at
docs/plans/2026-05-12-script-scope-access-design.md.
Adds ergonomic scope-aware accessors to compiled scripts. A script
on a composed TempSensor reads its own attribute via
Attributes["Temperature"]; reaches up to the parent via
Parent.Attributes["SpeedRPM"]; invokes a child script via
Children["TempSensor"].CallScript("Sample"). All resolve to the
existing flat Instance.GetAttribute / SetAttribute / CallScript
delegates by prepending the script's canonical path prefix.
Runtime types (SiteRuntime.Scripts.ScopeAccessors):
AttributeAccessor sync indexer + GetAsync / SetAsync
CompositionAccessor Attributes + CallScript
ChildrenAccessor Children["name"] => CompositionAccessor
ScriptGlobals gains Scope, Attributes, Children, Parent properties.
Sync indexer blocks on the Instance Actor Ask; explicit GetAsync /
SetAsync are also available for callers that want to await.
Plumbing:
- Commons.Types.Scripts.ScriptScope record (SelfPath / ParentPath).
- ResolvedScript.Scope (defaults to ScriptScope.Root for back-compat).
- FlatteningService emits new ScriptScope(prefix, "") for each
composed script so a script defined on TempSensor composed under
a parent gets SelfPath = "TempSensor".
- ScriptActor reads the Scope from its ResolvedScript and forwards
it through ScriptExecutionActor into ScriptGlobals on each call.
RevisionHashService not touched: the per-script canonical name
already encodes the composition path, so any structural change
already flips the hash.
10 new unit tests on the path arithmetic. Site/Template engine
suites stay green (129 + 199).
Editor surface (Phase 3: metadata fetch, Phase 4: completion +
SCADA006 / SCADA007 diagnostics) follows in the next commits.
Replace raw dictionary casting with ScriptParameters wrapper that provides
Get<T>, Get<T?>, Get<T[]>, and Get<List<T>> with clear error messages,
numeric conversion, and JsonElement support for Inbound API parameters.
IServiceProvider now flows through the actor chain (DeploymentManagerActor
→ InstanceActor → ScriptActor → ScriptExecutionActor) so scripts can
resolve IExternalSystemClient, IDatabaseGateway, and
INotificationDeliveryService from DI. ScriptGlobals exposes ExternalSystem,
Database, Notify, and Scripts as top-level properties so scripts can use
them without the Instance. prefix.
Wired ISiteHealthCollector calls for script errors (ScriptExecutionActor),
alarm eval errors (AlarmActor), dead letters (DeadLetterMonitorActor), and
S&F buffer depth placeholder. Added instance count tracking (deployed/
enabled/disabled) to SiteHealthReport via DeploymentManagerActor. Updated
Health Dashboard UI to show instance counts per site. All metrics flow
through the existing health report pipeline via ClusterClient.
