{
  "schemaVersion": "nodedc.device-edge.core-channel-source.v1",
  "status": "source-accepted",
  "authority": "DCPLATFORM-76/ADR-0001",
  "designContract": "nodedc.device-edge.core-channel.v1",
  "implementedAt": "2026-08-11",
  "transport": {
    "initiator": "device-gateway-core",
    "listener": "device-edge-channel",
    "protocol": "http2-bidirectional-ndjson",
    "tls": "TLSv1.3-mutual-authentication",
    "bearerAuthentication": false,
    "genericTcpForwarding": false
  },
  "sourceComponents": [
    "packages/device-edge-channel-contract",
    "services/device-edge-channel",
    "services/device-gateway-core"
  ],
  "identity": {
    "edgeRegistrationRequired": true,
    "edgeCertificatePinRequired": true,
    "coreCertificateAllowlistRequired": true,
    "unknownOrRevokedIdentity": "reject",
    "rotation": "one-active-plus-one-staged-generation",
    "retiredFingerprint": "reject",
    "privateKeysInSource": false,
    "privateKeysInArtifact": false
  },
  "messageBoundary": {
    "schema": "nodedc.device-edge.channel-envelope.v1",
    "maximumEnvelopeBytes": 1048576,
    "directionLocalSequence": true,
    "unknownSchemaOrKind": "close-logical-session",
    "acceptanceWindow": 128,
    "trackerAckRule": "core-acceptance-required"
  },
  "realtime": {
    "polling": false,
    "keepaliveSeconds": 15,
    "deadPeerSeconds": 45,
    "reconnectMinimumSeconds": 1,
    "reconnectMaximumSeconds": 30,
    "delivery": "at-least-once-with-core-idempotency"
  },
  "sourceAcceptance": {
    "devicePlaneTestsPassed": 193,
    "tls13MutualAuthenticationTested": true,
    "keepaliveTested": true,
    "disconnectReconnectTested": true,
    "certificateRotationOverlapAndRetirementTested": true,
    "idempotentReplayTested": true,
    "unknownAndRevokedIdentityTested": true,
    "oversizedEnvelopeTested": true,
    "coreUnavailableRejectionTested": true,
    "crossSessionProgressAndPerSessionOrderingTested": true,
    "boundedAcceptanceWindowTested": true,
    "existingCoreImageBuild": "passed-no-cache",
    "existingGatewayImageBuild": "passed-no-cache"
  },
  "runtime": {
    "mutationInThisTransition": false,
    "edgePort8443Published": false,
    "trackerPort9921Published": false,
    "synologyPublicIngress": false,
    "trackerIngress": "disabled",
    "commandTransport": "disabled",
    "gelios": "untouched"
  },
  "nextGate": "closed-port-synthetic-runtime-transition-under-DCPLATFORM-21",
  "rollback": "source-revert-only-runtime-unchanged"
}