Case
aiosendspin -> aiosendspin
Start the server first, then the client. The client advertises a listener, the server connects in, streams album artwork, disconnects, and the matrix compares the received bytes against the server's encoded artwork.
Server
aiosendspin
Client
aiosendspin
Status
Passed
Artwork bytes match
Server activation
Initial server/activate
What the aiosendspin server's own adapter recorded for its first server/activate on this connection, reported as sent. The case fails when none was sent, when its activities are not unique values from playback and pairing, or when it omits active_roles. Nothing else in it is checked against the specification: which activities and roles the matched PSK allows is not judged. A recording that cannot be read as that message is shown whole and not judged either.
Server group state
Every group/update after activation
What the aiosendspin server's own adapter recorded for each group/update it sent after its first server/activate on this connection, in order and reported as sent. The case fails when none followed, or when in any of them playback_state is not playing or stopped, or group_id or group_name is missing or not a string. How soon the first followed is not judged, because the specification says promptly and gives no bound, so one sent at any point in the case counts. Whether a change to a field produced a further message is not judged either. A recording of anything other than that message is shown whole and fails the case as a harness gap.
1 of 1
Inspection
Summaries, logs, and builds
Matrix result
RAW{
"case_dir": "artifacts/results/data/macos__server-initiated-artwork__aiosendspin__to__aiosendspin",
"client_exit_code": 0,
"client_impl": "aiosendspin",
"reason": "Artwork bytes match",
"scenario_id": "server-initiated-artwork",
"scenario_revision": 5,
"server_exit_code": 0,
"server_impl": "aiosendspin",
"status": "passed",
"unsupported": false
}Server summary (JSON)
RAW{
"activation": {
"payload": {
"active_roles": [
"artwork@v1"
],
"activities": [
"playback"
]
},
"type": "server/activate"
},
"artwork": {
"byte_count": 5533,
"channel": 0,
"encoded_sha256": "3ba7248e8b655fe0858c027053f0ef0a800d91ba87586c28f1d4cdad9f880ced",
"format": "jpeg",
"height": 256,
"source": "album",
"width": 256
},
"availability_trace": [
{
"available": true,
"type": "client/state"
},
{
"phase": "sending",
"roles": [
"artwork"
],
"type": "stream/start"
},
{
"phase": "sent",
"roles": [
"artwork"
],
"type": "stream/start"
}
],
"client": {
"active_roles": [
"artwork@v1"
],
"client_id": "rFgILqo5YfPor8oK13GTFmECUaxYcW46Q1TFv8F38Xg",
"name": "aiosendspin-client",
"supported_roles": [
"artwork@v1"
]
},
"discovery_method": "registry_fallback",
"group_updates": [
{
"payload": {
"group_id": "4f830016-b8e7-45a3-9123-8a77be241777",
"group_name": "aiosendspin-client",
"playback_state": "stopped"
},
"type": "group/update"
}
],
"implementation": "aiosendspin",
"initiator_role": "server",
"peer_hello": {
"payload": {
"name": "aiosendspin-client",
"supported_pair_methods": {
"pairing_psk": {}
},
"supported_roles": [
"artwork@v1"
],
"unpaired_access": {
"enabled": true
}
},
"type": "client/hello"
},
"preferred_codec": "none",
"role": "server",
"scenario_id": "server-initiated-artwork",
"server_id": "dsIlKLOY1OqUfE4ig1m3id0r6yr2D5_3R-FJLQZI30I",
"server_name": "aiosendspin server",
"status": "ok",
"time_exchange": [
{
"payload": {
"client_transmitted": 813479317
},
"type": "client/time"
},
{
"payload": {
"client_transmitted": 813479317,
"server_received": 813484372,
"server_transmitted": 813484683
},
"type": "server/time"
},
{
"payload": {
"client_transmitted": 813681550
},
"type": "client/time"
},
{
"payload": {
"client_transmitted": 813681550,
"server_received": 813682010,
"server_transmitted": 813682413
},
"type": "server/time"
},
{
"payload": {
"client_transmitted": 813883949
},
"type": "client/time"
},
{
"payload": {
"client_transmitted": 813883949,
"server_received": 813884477,
"server_transmitted": 813884679
},
"type": "server/time"
}
]
}Server log
RAWINFO:aiosendspin.server.server:Starting Sendspin server on port 18975
INFO:aiosendspin.server.server:Sendspin server started successfully on 127.0.0.1:18975
WARNING:aiosendspin.server.server:No IP addresses available for mDNS advertising. Clients may not be able to discover this server. Consider specifying addresses manually via advertise_addresses.
{
"activation": {
"payload": {
"active_roles": [
"artwork@v1"
],
"activities": [
"playback"
]
},
"type": "server/activate"
},
"artwork": {
"byte_count": 5533,
"channel": 0,
"encoded_sha256": "3ba7248e8b655fe0858c027053f0ef0a800d91ba87586c28f1d4cdad9f880ced",
"format": "jpeg",
"height": 256,
"source": "album",
"width": 256
},
"availability_trace": [
{
"available": true,
"type": "client/state"
},
{
"phase": "sending",
"roles": [
"artwork"
],
"type": "stream/start"
},
{
"phase": "sent",
"roles": [
"artwork"
],
"type": "stream/start"
}
],
"client": {
"active_roles": [
"artwork@v1"
],
"client_id": "rFgILqo5YfPor8oK13GTFmECUaxYcW46Q1TFv8F38Xg",
"name": "aiosendspin-client",
"supported_roles": [
"artwork@v1"
]
},
"discovery_method": "registry_fallback",
"group_updates": [
{
"payload": {
"group_id": "4f830016-b8e7-45a3-9123-8a77be241777",
"group_name": "aiosendspin-client",
"playback_state": "stopped"
},
"type": "group/update"
}
],
"implementation": "aiosendspin",
"initiator_role": "server",
"peer_hello": {
"payload": {
"name": "aiosendspin-client",
"supported_pair_methods": {
"pairing_psk": {}
},
"supported_roles": [
"artwork@v1"
],
"unpaired_access": {
"enabled": true
}
},
"type": "client/hello"
},
"preferred_codec": "none",
"role": "server",
"scenario_id": "server-initiated-artwork",
"server_id": "dsIlKLOY1OqUfE4ig1m3id0r6yr2D5_3R-FJLQZI30I",
"server_name": "aiosendspin server",
"status": "ok",
"time_exchange": [
{
"payload": {
"client_transmitted": 813479317
},
"type": "client/time"
},
{
"payload": {
"client_transmitted": 813479317,
"server_received": 813484372,
"server_transmitted": 813484683
},
"type": "server/time"
},
{
"payload": {
"client_transmitted": 813681550
},
"type": "client/time"
},
{
"payload": {
"client_transmitted": 813681550,
"server_received": 813682010,
"server_transmitted": 813682413
},
"type": "server/time"
},
{
"payload": {
"client_transmitted": 813883949
},
"type": "client/time"
},
{
"payload": {
"client_transmitted": 813883949,
"server_received": 813884477,
"server_transmitted": 813884679
},
"type": "server/time"
}
]
}
Client summary (JSON)
RAW{
"artwork": {
"byte_count": 5533,
"channel": 0,
"received_count": 2,
"received_sha256": "3ba7248e8b655fe0858c027053f0ef0a800d91ba87586c28f1d4cdad9f880ced"
},
"client_id": "rFgILqo5YfPor8oK13GTFmECUaxYcW46Q1TFv8F38Xg",
"client_name": "aiosendspin-client",
"implementation": "aiosendspin",
"initiator_role": "server",
"peer_hello": null,
"preferred_codec": "none",
"role": "client",
"scenario_id": "server-initiated-artwork",
"server": null,
"status": "ok",
"stream": {
"channels": [
{
"format": "jpeg",
"height": 256,
"source": "album",
"width": 256
}
]
}
}Client log
RAWINFO:aiosendspin.client.listener:ClientListener started on port 19975, path /sendspin
INFO:aiohttp.access:127.0.0.1 [21/Oct/2026:07:22:10 +0000] "GET /sendspin HTTP/1.1" 101 0 "-" "Python/3.12 aiohttp/3.14.5"
INFO:aiosendspin.client.listener:ClientListener stopped
{
"artwork": {
"byte_count": 5533,
"channel": 0,
"received_count": 2,
"received_sha256": "3ba7248e8b655fe0858c027053f0ef0a800d91ba87586c28f1d4cdad9f880ced"
},
"client_id": "rFgILqo5YfPor8oK13GTFmECUaxYcW46Q1TFv8F38Xg",
"client_name": "aiosendspin-client",
"implementation": "aiosendspin",
"initiator_role": "server",
"peer_hello": null,
"preferred_codec": "none",
"role": "client",
"scenario_id": "server-initiated-artwork",
"server": null,
"status": "ok",
"stream": {
"channels": [
{
"format": "jpeg",
"height": 256,
"source": "album",
"width": 256
}
]
}
}
Shared build log · python-adapters · built · 0.24s
RAW.py'... Compiling 'src/conformance/_vendor/aiosendspin/server/roles/player/audio_transformers.py'... Compiling 'src/conformance/_vendor/aiosendspin/server/roles/player/capabilities.py'... Compiling 'src/conformance/_vendor/aiosendspin/server/roles/player/events.py'... Compiling 'src/conformance/_vendor/aiosendspin/server/roles/player/group.py'... Compiling 'src/conformance/_vendor/aiosendspin/server/roles/player/types.py'... Compiling 'src/conformance/_vendor/aiosendspin/server/roles/player/v1.py'... Compiling 'src/conformance/_vendor/aiosendspin/server/roles/registry.py'... Compiling 'src/conformance/_vendor/aiosendspin/server/roles/scheduled_state.py'... Listing 'src/conformance/_vendor/aiosendspin/server/roles/source'... Compiling 'src/conformance/_vendor/aiosendspin/server/roles/source/__init__.py'... Compiling 'src/conformance/_vendor/aiosendspin/server/roles/source/events.py'... Compiling 'src/conformance/_vendor/aiosendspin/server/roles/source/stream.py'... Compiling 'src/conformance/_vendor/aiosendspin/server/roles/source/v1.py'... Listing 'src/conformance/_vendor/aiosendspin/server/roles/visualizer'... Compiling 'src/conformance/_vendor/aiosendspin/server/roles/visualizer/__init__.py'... Compiling 'src/conformance/_vendor/aiosendspin/server/roles/visualizer/features.py'... Compiling 'src/conformance/_vendor/aiosendspin/server/roles/visualizer/group.py'... Compiling 'src/conformance/_vendor/aiosendspin/server/roles/visualizer/packing.py'... Compiling 'src/conformance/_vendor/aiosendspin/server/roles/visualizer/types.py'... Compiling 'src/conformance/_vendor/aiosendspin/server/roles/visualizer/v1.py'... Listing 'src/conformance/_vendor/aiosendspin/server/roles/visualizer_draft_r1'... Compiling 'src/conformance/_vendor/aiosendspin/server/roles/visualizer_draft_r1/__init__.py'... Compiling 'src/conformance/_vendor/aiosendspin/server/roles/visualizer_draft_r1/features.py'... Compiling 'src/conformance/_vendor/aiosendspin/server/roles/visualizer_draft_r1/packing.py'... Compiling 'src/conformance/_vendor/aiosendspin/server/roles/visualizer_draft_r1/role.py'... Compiling 'src/conformance/_vendor/aiosendspin/server/server.py'... Compiling 'src/conformance/_vendor/aiosendspin/util.py'... Listing 'src/conformance/adapters'... Compiling 'src/conformance/adapters/__init__.py'... Compiling 'src/conformance/adapters/_aiosendspin_pairing.py'... Compiling 'src/conformance/adapters/_aiosendspin_protocol_evidence.py'... Compiling 'src/conformance/adapters/aiosendspin_client.py'... Compiling 'src/conformance/adapters/aiosendspin_server.py'... Compiling 'src/conformance/adapters/placeholder.py'... Compiling 'src/conformance/cli.py'... Compiling 'src/conformance/flac.py'... Compiling 'src/conformance/merge.py'... Compiling 'src/conformance/pcm.py'... Compiling 'src/conformance/registry.py'... Listing 'src/conformance/validator'... Compiling 'src/conformance/validator/__init__.py'... Compiling 'src/conformance/validator/checks.py'... Compiling 'src/conformance/validator/cli.py'... Compiling 'src/conformance/validator/code_pairing.py'... Compiling 'src/conformance/validator/code_pairing_checks.py'... Compiling 'src/conformance/validator/discovery.py'... Compiling 'src/conformance/validator/findings.py'... Compiling 'src/conformance/validator/noncompliance_refs.py'... Compiling 'src/conformance/validator/prompter.py'... Compiling 'src/conformance/validator/recorder.py'... Compiling 'src/conformance/validator/report.py'... Compiling 'src/conformance/validator/session.py'... Compiling 'src/conformance/validator/storage.py'... Compiling 'src/conformance/validator/suite_checks.py'... Compiling 'src/conformance/validator/suites.py'... Listing 'src/sendspin_conformance.egg-info'... Listing 'scripts'... Compiling 'scripts/detect_regressions.py'... Compiling 'scripts/merge_results.py'... Compiling 'scripts/run_all.py'... Compiling 'scripts/setup_repositories.py'... Compiling 'scripts/setup_workspace.py'... Compiling 'scripts/vendor_aiosendspin.py'...