Built-in Subagents
Archestra ships built-in subagents for its own background jobs, such as chat titles and long-chat summaries. Most run on their own. You can change each one's model and instructions, but you cannot delete them.
What to know:
- Change them only when you must. Archestra tunes their instructions for their jobs. Changed instructions can make them act in ways you do not expect.
- With no model set, a subagent uses the model of the work it serves, such as the chat's model. The organization's default model is the fallback.
Built-In Subagents
| Subagent | What It Does |
|---|---|
| APPAdvisor | Explains your Guardrails policy, and changes it when you ask. Open its chat from Guardrails. It stays out of the chat agent picker and shows each change before it publishes. |
| Context Compaction Subagent | Summarizes older history when a chat nears the model's context limit. Recent turns stay word for word, and the full history stays visible. |
| Chat Title Generation Subagent | Names each chat in three to six words. |
| App Runtime LLM Agent | Serves archestra.llm.complete() for MCP Apps. Apps cannot pick a model, so set one here. |