II.
ToolDescriptor JSON
Structured · livetool-descriptor:send-message
SendMessage json
Inspect the normalized record payload exactly as the atlas UI reads it.
{
"id": "tool-descriptor:send-message",
"_kind": "ToolDescriptor",
"_file": "extensions/tool-descriptors/claude-code-extended-tools.yaml",
"_cluster": "extensions",
"attributes": {
"schema": "{}",
"displayName": "SendMessage",
"description": "Send a message to an agent-team teammate, or resume a stopped subagent\nby its agent ID. Stopped subagents auto-resume in the background.\nAvailable only when CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS=1 is set.\n",
"inputSchema": {
"type": "object",
"required": [
"recipient",
"message"
],
"properties": {
"recipient": {
"type": "string",
"description": "Teammate name or subagent ID"
},
"message": {
"type": "string"
}
}
},
"mode": "normal",
"streamable": false
},
"outgoingEdges": [],
"incomingEdges": [
{
"from": "agent-runtime-impl:claude-code.runtime@1.x",
"to": "tool-descriptor:send-message",
"kind": "bundles",
"attributes": {}
}
]
}