R06:M-5 made Sparkplug *Array leaves unbindable because the ingestor refused
them. The ingestor now decodes the packed bytes_value of all 13 array types
(new SparkplugArrayCodec: LE fixed widths, int64-ms DateTime, uint32-count +
MSB-first BooleanArray, NUL-terminated UTF-8 StringArray; golden vectors are
the spec's examples, reproduced byte-for-byte by SparkplugNet 1.3.10) and
publishes a typed 1-D array through the scalar coercion, all-or-nothing.
Shape uses the fleet's one array model: the tag's platform isArray/arrayLength
keys (ValueRank=1, ArrayDimensions=[arrayLength] or [0] = variable length).
The driver reads them with TagConfigIntent's exact semantics and never rejects
on them, so composer, driver, authoring model and deploy inspector agree
(MqttArrayShapeParityTests). Shape mismatch (array metric on a scalar tag, or
the reverse) is BadTypeMismatch - a String tag no longer gets the packed
buffer as base64; a malformed body or a length differing from a declared
arrayLength is BadDecodingError (MTConnect #627 verdict). Template/DataSet
members of an array type take the same path. Arrays stay read-only (encoder
refuses them; MQTT is not in DriverArrayWriteSupport).
Browser: array leaves are bindable again and state isArray in AddressFields;
the commit mapper writes "isArray": true (no arrayLength). Discovery reports
IsArray/ArrayDim. Docs: Mqtt.md "Array metrics", design table, drivers rule.
Tests: codec (golden + malformed), ingest through the real codec + Dispatch
(the project's MiniBroker never forwards a PUBLISH, so there is no in-process
broker harness), browse, discovery, commit mapper, parity corpus. Mutating the
fix back out fails 18 MQTT + 9 AdminUI tests.
Claude-Session: https://claude.ai/code/session_01GT67AEHd2Acv1YPwGfXEoV
Every concern the 7-agent review parked is now decided and integrated:
- universal browser: in-flight capture coalescing keyed (driverType,
config-hash) + global cap of 4 concurrent captures; CanBrowse catches a
throwing TryCreate and defensively shuts down the throwaway instance;
cleanup ShutdownAsync bounded at 10s (R2-01); picker Refresh = close +
re-capture. Coalesced sessions share an immutable tree, so DisposeAsync
drops the session's reference, not the tree.
- mtconnect: UNAVAILABLE pinned to BadNoCommunication (fleet's
BadCommunicationError stays reserved for the driver's own transport
failures); TIME_SERIES sampleCount flows into ArrayDim; Subscribe timeout
bounds only the stream-start handshake; library version/TFM folded into
the license checklist.
- mqtt: browse rebirth is an explicit DriverOperator-gated "Request rebirth"
button (RequestRebirthAsync(scope)) - never fired by open/root/expand;
hand-rolled reconnect loop committed for P1 (MQTTnet v5 dropped
ManagedMqttClient); Wave-2-start library re-verification checkbox;
implement from the Sparkplug v3.0 spec text.
- bacnet: P1 opens with a first-spike checklist (package TFM, BBMD/
segmented-RPM/COV API smoke, unicast-I-Am fixture behavior); AdminUI-node
browse registers a second foreign device - BBMD FD-table sizing note.
- sql-poll: split-node browse needs env parity for Sql__ConnectionStrings__
refs on admin nodes (actionable error + session-only pasted literal);
one-row-per-key query contract (last-wins + rate-limited warning);
absent key -> BadNoData; operationTimeout > commandTimeout authoring rule;
Browser->Driver.Sql SqlClient transitive on AdminUI accepted on record.
- omron: FINS framer gated on W227 + live golden vectors; CIP string layout
is the first P1 live-gate item; AbCip harness static-init anti-pattern
note; writable-defaults-true operator warning.
- modbus-rtu: first P1 step confirms pymodbus exposes framer=rtu on a TCP
server (custom-script fallback otherwise).
- program doc: new cross-cutting rule - driver ctors must be connection-free
(the universal browser's CanBrowse throwaway instances depend on it).
Adds the driver-expansion program design (umbrella: universal Discover-backed
browser + MTConnect, MQTT/Sparkplug B, BACnet/IP, SQL poll, Omron, Modbus RTU;
MELSEC deferred) plus the per-driver research reports.
All docs went through a 7-agent parallel review against the codebase before
this commit. Highlights fixed in review:
- universal browser: FOCAS FixedTree fills post-connect -> UntilStable settle
+ FixedTree.Enabled patch; MQTT reconciled to bespoke (was contradicting the
program doc's SupportsOnlineDiscovery=false verdict)
- modbus-rtu: SerialPort.ReadTimeout doesn't bound async BaseStream reads ->
linked-CTS per-op deadline (R2-01 class); BCL enum reuse would leak
System.IO.Ports into Contracts
- bacnet: DiscoveryRediscoverPolicy enum name; UDP 47808 contention; live
suite rewritten around unicast Who-Is + BBMD (broadcast doesn't cross VMs)
- sql-poll: real tier registration via DriverFactoryRegistry.Register;
blackhole gate must not docker-pause the shared central SQL Server
- mqtt: Sparkplug v3.0 STATE topic form; first-in-repo proto codegen noted
- omron: host hardcodes isIdempotent:false today (retry seam unshipped);
v1 scopes UDTs to dotted-leaf access
- mtconnect: SecurityClassification.ViewOnly; factory ParseEnum<T> pattern
- program doc: both valid enum-serialization patterns; IRediscoverable is
change-signal-gated; RTU P2 adds System.IO.Ports; label is host-side
Joseph Doherty