Chat blocks

Chat blocks sit in the builder palette under Chat. Most also appear as agent tools. Shared graph rules are on Workflows. Human yes/no and questionnaires are covered in Approval Flow. Live operators use Chat Profiles.

Hangup and Skip Response are tools only (not in the workflow palette). Hangup is for voice calls.

Use	Block
Start a system-initiated conversation and wait until it ends	Start Chat
Read messages in a session	Get Messages
List recent sessions	Recent Sessions
Latest session summary	Recent Session Summary
Search older chats	Search Past Conversation
Escalate to a human	Handover
Pause for yes/no	Request Approval
Pause for a questionnaire	Request Information
Summarize a session or message range	Summarize Chat
End a voice call	Hangup
Skip the assistant reply this turn	Skip Response

Start Chat

Open a system-initiated conversation and continue when that session ends.

Get Messages

Fetch messages from a session by session id, with optional range and paging.

Recent Sessions

List recent chat sessions for a user or channel identifier.

Recent Session Summary

Fetch the AI summary of the most recent session for a user or channel.

Search Past Conversation

Search indexed past conversations by meaning and filters.

Handover

Pause and hand the chat to a chat profile, optionally a specific member.

Request Approval

Pause until someone approves or rejects. Rejected uses a separate outlet.

Request Information

Pause until role holders submit text and choice answers on Approvals.

Summarize Chat

Summarize a session or message-id range into concise text.

Hangup

End the active voice call after a farewell. Agent tool only.

Skip Response

Skip sending a user-facing assistant reply for the current turn.