Prompt Runner uses agent_session_manager renderers and sinks for streaming output.

Modes

  • compact dense terminal output for routine runs
  • verbose one event per line for debugging
  • studio richer prompt headers and tool summaries
  • log_mode
  • log_meta
  • events_mode
  • tool_output

Tool Output Levels

  • summary
  • preview
  • full

Failure Detail Levels

  • none
  • full

With full, provider stderr detail is printed when available.

Event Logs

When the runtime store is file-backed, Prompt Runner writes packet-local logs to:

.prompt_runner/logs/

events_mode controls JSONL event emission:

  • compact
  • full
  • off