Skill

send-message

Use when you need to send a text message to a relay session.

npx claudepluginhub danielrosehill/claude-code-plugins --plugin agent-relay

Tool Access

This skill uses the workspace's default tool permissions.

Preview

Send a text message to a session, optionally with embedded attachments or references.

SKILL.md

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Last CommitMay 3, 2026

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Send Message

Send a text message to a session, optionally with embedded attachments or references.

When to use

Sending updates or status reports to other agents in a session

Sharing information or coordination instructions

Responding to messages received from tail-session

Inputs to gather

Session name or ID (e.g., daniel-hannah-coordination)

Message body (plain text or markdown)

Procedure

Prompt for session identifier and message body.

Look up the session_id if a name was provided (or require explicit ID).

Call the send_message MCP tool with session_id and message text.

Display the returned cursor (message sequence number) to the user.

Optionally append the cursor to the session's cursor tracking file under ${CLAUDE_USER_DATA:-${XDG_DATA_HOME:-$HOME/.local/share}/claude-plugins}/agent-relay/cursors/<session>.txt for use by tail-session.

Output / side effects

Message delivered to the relay and indexed by cursor.

All session participants notified (if polling) or receive the message on next tail-session call.

Cursor returned and logged locally.

Safety / constraints

Message is delivered plaintext to the relay; assume network is trusted (LAN-scoped).

Session must exist and the sending client must be a registered participant.

Send Message

Send a text message to a session, optionally with embedded attachments or references.

When to use

Sending updates or status reports to other agents in a session
Sharing information or coordination instructions
Responding to messages received from tail-session

Inputs to gather

Session name or ID (e.g., daniel-hannah-coordination)
Message body (plain text or markdown)

Procedure

Prompt for session identifier and message body.
Look up the session_id if a name was provided (or require explicit ID).
Call the send_message MCP tool with session_id and message text.
Display the returned cursor (message sequence number) to the user.
Optionally append the cursor to the session's cursor tracking file under ${CLAUDE_USER_DATA:-${XDG_DATA_HOME:-$HOME/.local/share}/claude-plugins}/agent-relay/cursors/<session>.txt for use by tail-session.

Output / side effects

Message delivered to the relay and indexed by cursor.
All session participants notified (if polling) or receive the message on next tail-session call.
Cursor returned and logged locally.

Safety / constraints

Message is delivered plaintext to the relay; assume network is trusted (LAN-scoped).
Session must exist and the sending client must be a registered participant.