Replies

A reply points to an earlier message and contains another encoded content value.

Type ID: xmtp.org/reply:1.0. The payload contains a nested EncodedContent, a message reference, and the referenced sender inbox ID. A text reply fallback is Replied with "…" to an earlier message. shouldPush defaults to true on Browser, Node, Kotlin, and Swift.

Field	Meaning
reference	ID of the earlier message
referenceInboxId	Inbox ID of the earlier message sender
content	Nested encoded content

Decode the nested content recursively with the codec registry. Do not assume that every reply contains text. In the Agent SDK, EnrichedReply.inReplyTo contains the referenced message when it is available.