Body Required

• id string(uuid) Required

  Unique id for this event. Stable across redeliveries, so it is the dedupe key. It is the primary key of the row the publisher wrote, which means it is assigned when the state change is recorded, not when the message is dispatched.

• type string Required

  The topic name, identical to the channel address. Route on this.

  Value is thread.created.

• api_version string Required

  The Commune-Version value this payload conforms to. Present on the message itself, not only on the request header, so an event persisted to a consumer's own store stays self-describing.

• occurred_at string(date-time) Required

  RFC 3339 timestamp of the state change, not of the delivery attempt. Use it to order events, since delivery order is not guaranteed.

• newsletter_id string(uuid) | null Required

  The newsletter the change belongs to. This is the tenant boundary: a consumer only ever receives events for newsletters its credential can read. Null only for events that are genuinely not newsletter-scoped, which none of the 21 topics currently are.

• actor object | null Required

  Who caused the change. ALWAYS null today and consumers must treat it that way: the public API is currently read-only, so nothing that reaches this catalog was triggered through it, and Commune does not backfill an actor for changes made in the product UI or by a cron. The field exists now so that populating it, once writes exist, is an additive change rather than a new envelope version.

  Additional properties are NOT allowed.

  Hide actor attributes Show actor attributes object | null

  • type string Required

    user for a change a person made through an authenticated session, api_key for a public API write, system for a cron or webhook ingest with no human behind it.

    Values are user, api_key, or system.

  • id string Required

    Identifier of the actor within its type. A user id for user, a key id (never the secret) for api_key, a stable job name for system.

  • label string | null

    Human-readable name for display. Best effort, may be null.

• idempotency_key string | null Required

  ALWAYS null today. Once the public API accepts writes this carries the Idempotency-Key header of the write that caused the change, so a consumer can tie an event back to its own request and collapse the duplicates a retried write would otherwise produce. Null stays a legitimate value even then: a change made in the product UI or by a cron has no originating request to key on.

  Maximum length is 255.

• data object Required

  Event-specific body. Narrowed by each concrete event schema below.

  Hide data attributes Show data attributes object

  • thread_id string(uuid) Required

    The thread itself, which is the opening message of the conversation rather than a reply within one.

  • short_id string | null

    Short public identifier used in thread URLs.

  • url string(uri) | null
  • author object | null

    A pointer to a Commune account, enough to attribute and render something without a second call. Null when there is no account to point at, either because there never was one or because the account was deleted. Content outlives its author, so a null here is expected rather than a sign the reference was lost.

    Hide author attributes Show author attributes object | null

    • user_id string Required
    • username string | null
    • display_name string | null
    • avatar_url string(uri) | null
  • content string Required

    The opening message, capped at 5000 characters on write.

    Maximum length is 5000.

  • visibility string Required

    public puts the thread on the global feed and only team members may set it. subscribers keeps it in the newsletter's own space. paid is reserved and unused.

    Values are public, subscribers, or paid.

  • article_id string(uuid) | null

    Set when the thread is an article's discussion. This is where article comments live now; the old article_comments table is dead.

  • created_at string(date-time) Required