NODEDC_MISSION_CORE/plugins/xgrids-k1

XGRIDS / LixelKity K1 plugin

This directory is the package boundary for the first Mission Core device plugin. It now owns the canonical v1alpha2 manifest plugin.manifest.json. The statically linked frontend contribution lives in frontend/ beside the manifest and profiles; its provisioning, acquisition/replay, diagnostics and metrics are separate plugin-owned components. The verified backend implementation is physically isolated in src/k1link/device_plugins/xgrids_k1/.

The v1alpha2 catalog can describe one or more independently profiled models. This manifest currently exposes only xgrids.lixelkity-k1, and the transitional runtime still owns one active model/session at a time. Concurrent model/session routing remains a later supervisor milestone.

The plugin owns:

• the exact firmware/topology compatibility profiles under profiles/, with strict evidence flags and a fail-closed loader;
• BLE discovery hints and K1 GATT metadata;
• the reviewed firmware-3 Wi-Fi provisioning profile;
• K1 LAN status and private-address validation;
• subscribe-only MQTT transport and report-topic allowlist;
• native .k1mqtt capture;
• firmware-scoped protobuf/LZ4 and legacy codecs;
• normalization of K1 point cloud and pose, plus raw-only preservation of the still-undecoded status and heartbeat channels;
• exact-profile left/right RTSP producer selection, H.264 copy-remux preview and the handoff of acquisition-owned init/fMP4/index evidence to the host archive;
• K1-specific operator instructions and compatibility tests.
• the scoped React device.connection contribution and its BLE/Wi-Fi and acquisition pipeline UI.
• the dormant application-control facade boundary: explicit shadow arm/disarm, a 15–300 second Keychain-backed in-memory authority lease, and redacted state.

The plugin does not own:

• Mission Core navigation, fleet, missions, users, roles, or audit;
• the generic spatial scene or Rerun Web Viewer;
• the host observation catalog, RRD preparation/cache, recorded-camera player, workspace layout, platform storage, remote transport, or other devices.

The k1link distribution and CLI names remain compatibility names. All device-specific implementation behind them is plugin-owned, and every change must preserve replay and real-device acceptance.

Mission Core imports this plugin only from apps/control-station/src/composition/devicePlugins.ts. The generic shell never branches on this plugin ID or reads k1_ip, BLE candidates, MQTT topics, or other vendor state. The frontend contribution imports the host only through @mission-core/plugin-sdk; its CSS is scoped below .xgrids-k1-plugin.

Backend startup loads the reviewed factory declared by backendEntrypoint, then cross-checks the runtime-owned plugin ID, version, supported host API and exact action set against this manifest. The runtime must complete the versioned control-plane handshake and report ready before any action is admitted. Actions enter through the host dispatcher and the transitional facade src/k1link/device_plugins/xgrids_k1/facade.py. The old flat routes live in the plugin's legacy router; both paths now cross the same runtime transport and delegate to the proven XgridsK1CompatibilityService methods. Synchronous capture/runtime operations run outside the FastAPI event loop.

Model switching calls the plugin deactivation hook. An active acquisition uses semantic acquisition.stop in capture-only mode; replay and pre-v1alpha2 sessions retain the legacy stream.stop shim. Neither path claims that the physical K1 stopped without separate operator evidence. BLE, MQTT, codec, archive discovery and RRD export modules now live under the plugin package after replay parity and physical K1 regression. The current transport remains in-process and its health is lifecycle-only; process isolation, crash/restart containment and signed deployment remain later supervisor gates.

The compatibility profile is descriptive and cannot itself authorize a vendor write. The current runtime cannot inspect K1 firmware: it keeps the profile inactive until the operator explicitly attests firmware 3.0.2 and direct-LAN topology, and records that basis as operator-attested rather than device-derived evidence. Validate the current exact-match profile without device I/O with:

uv run python plugins/xgrids-k1/profile_loader.py

Plugin v0.4.0 does not widen device authority. Its application-control coordinator has no request-emission method, no live MQTT sink and no UI control; vendor_writes_enabled remains false. Keychain item provisioning and a separate review of any future write-capable transport are still required before a physical command can be considered.

The optional owner-controlled iPhone/LixelGO observation tool lives under lab/iphone-capture/. It pins pymobiledevice3 in a separate uv environment, writes only ignored evidence sessions, and remains a lab subprocess rather than a plugin/runtime dependency. The first capture is gated by ADR 0004 and ADR 0005.