prebuilt.formatters

Built-in formatters

DefaultAgentFormatter formats AgentEvent instances into compact log lines.

It typically prints:

• The phase (loop_start, iteration_start, etc.)
• Agent ID/type
• Iteration number
• Max iterations (when relevant)

Next steps

Observability guide

How to wire agent formatters into sinks.

core.formatters reference

Formatters for LLM and tool events.