ak.schema.signal_message_stream.v1

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Arkret Message Stream Signal Plaintext

ak.schema.signal_message_stream.v1 · file: schemas/signal-message-stream.schema.json

Closed decrypted plaintext payload profile for transient Message generation previews carried only inside ak.schema.signal_envelope.v1. It is not a durable Event or Content Block.

* $ · oneOf[3]

Closed decrypted plaintext payload profile for transient Message generation previews carried only inside ak.schema.signal_envelope.v1. It is not a durable Event or Content Block.

oneOf · oneOf[0] · allOf[2] · $ref #/$defs/keyframe

allOf · allOf[0] · object · $ref #/$defs/common_properties

* kind · const "ak.message.stream"

enum: "ak.message.stream"

* payload_sequence · integer

Strictly increasing but non-contiguous sequence within (sender_actor_id, sender_device_id, canonical scope_ref), including the complete ActorId. It is independent of the per-stream seq and participates in generic Signal replay handling.

* strand_id · string · $ref #/$defs/strand_id

pattern: ^ak:strand:[A-Za-z0-9_-]{44}$

* message_id · string · $ref #/$defs/message_id

Predeclared final Message identity, derived by retyping the complete 33-octet token of the planned ak.message.create Event.event_id.

pattern: ^ak:message:[A-Za-z0-9_-]{44}$

* attempt · integer

* stream_id · string

pattern: ^ak:message_stream:[0-9a-f]{8}-[0-9a-f]{4}-7[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$

* seq · integer

* frame_kind · string (enum)

enum: "keyframe" "delta" "abort"

allOf · allOf[1] · object

kind · const "ak.message.stream"

enum: "ak.message.stream"

payload_sequence · integer

strand_id · string · $ref #/$defs/strand_id

pattern: ^ak:strand:[A-Za-z0-9_-]{44}$

message_id · string · $ref #/$defs/message_id

pattern: ^ak:message:[A-Za-z0-9_-]{44}$

attempt · integer

stream_id · string

pattern: ^ak:message_stream:[0-9a-f]{8}-[0-9a-f]{4}-7[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$

seq · integer

frame_kind · const "keyframe"

enum: "keyframe"

* format · string (enum)

enum: "plain" "markdown"

* text · string · $ref #/$defs/preview_text

Authoritative limit is 16 KiB of valid UTF-8, enforced after decryption by a byte validator. maxLength is a not-wider code-point fast bound. LF, CR and TAB are allowed; other C0 controls and DEL are forbidden.

pattern: ^[^\u0000-\u0008\u000B\u000C\u000E-\u001F\u007F]*$

* truncated · boolean

oneOf · oneOf[1] · allOf[2] · $ref #/$defs/delta

allOf · allOf[0] · object · $ref #/$defs/common_properties

* kind · const "ak.message.stream"

enum: "ak.message.stream"

* payload_sequence · integer

Strictly increasing but non-contiguous sequence within (sender_actor_id, sender_device_id, canonical scope_ref), including the complete ActorId. It is independent of the per-stream seq and participates in generic Signal replay handling.

* strand_id · string · $ref #/$defs/strand_id

pattern: ^ak:strand:[A-Za-z0-9_-]{44}$

* message_id · string · $ref #/$defs/message_id

Predeclared final Message identity, derived by retyping the complete 33-octet token of the planned ak.message.create Event.event_id.

pattern: ^ak:message:[A-Za-z0-9_-]{44}$

* attempt · integer

* stream_id · string

pattern: ^ak:message_stream:[0-9a-f]{8}-[0-9a-f]{4}-7[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$

* seq · integer

* frame_kind · string (enum)

enum: "keyframe" "delta" "abort"

allOf · allOf[1] · object

kind · const "ak.message.stream"

enum: "ak.message.stream"

payload_sequence · integer

strand_id · string · $ref #/$defs/strand_id

pattern: ^ak:strand:[A-Za-z0-9_-]{44}$

message_id · string · $ref #/$defs/message_id

pattern: ^ak:message:[A-Za-z0-9_-]{44}$

attempt · integer

stream_id · string

pattern: ^ak:message_stream:[0-9a-f]{8}-[0-9a-f]{4}-7[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$

seq · integer

frame_kind · const "delta"

enum: "delta"

* base_seq · integer

* text_append · allOf[2]

allOf · allOf[0] · string · $ref #/$defs/preview_text

Authoritative limit is 16 KiB of valid UTF-8, enforced after decryption by a byte validator. maxLength is a not-wider code-point fast bound. LF, CR and TAB are allowed; other C0 controls and DEL are forbidden.

pattern: ^[^\u0000-\u0008\u000B\u000C\u000E-\u001F\u007F]*$

allOf · allOf[1] · ?

oneOf · oneOf[2] · allOf[2] · $ref #/$defs/abort

allOf · allOf[0] · object · $ref #/$defs/common_properties

* kind · const "ak.message.stream"

enum: "ak.message.stream"

* payload_sequence · integer

Strictly increasing but non-contiguous sequence within (sender_actor_id, sender_device_id, canonical scope_ref), including the complete ActorId. It is independent of the per-stream seq and participates in generic Signal replay handling.

* strand_id · string · $ref #/$defs/strand_id

pattern: ^ak:strand:[A-Za-z0-9_-]{44}$

* message_id · string · $ref #/$defs/message_id

Predeclared final Message identity, derived by retyping the complete 33-octet token of the planned ak.message.create Event.event_id.

pattern: ^ak:message:[A-Za-z0-9_-]{44}$

* attempt · integer

* stream_id · string

pattern: ^ak:message_stream:[0-9a-f]{8}-[0-9a-f]{4}-7[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$

* seq · integer

* frame_kind · string (enum)

enum: "keyframe" "delta" "abort"

allOf · allOf[1] · object

kind · const "ak.message.stream"

enum: "ak.message.stream"

payload_sequence · integer

strand_id · string · $ref #/$defs/strand_id

pattern: ^ak:strand:[A-Za-z0-9_-]{44}$

message_id · string · $ref #/$defs/message_id

pattern: ^ak:message:[A-Za-z0-9_-]{44}$

attempt · integer

stream_id · string

pattern: ^ak:message_stream:[0-9a-f]{8}-[0-9a-f]{4}-7[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$

seq · integer

frame_kind · const "abort"

enum: "abort"

* reason_code · string (enum)

enum: "generation_cancelled" "generation_failed" "superseded"

Source

• registry row: spec/v1/artifacts/registry/schema-registry.json
• schema document: spec/v1/artifacts/schemas/signal-message-stream.schema.json