Stream-first
Submit a turn and consume its lifecycle and model events as a ReadableStream.
Plugin-first
Only install what you need. Plugins, runners, and storage adapters keep optional capabilities outside the core runtime.
xsAI-based
Model calls, tools, steps, and streaming events are powered by xsAI and work with any OpenAI-compatible endpoint.
Append-only history
Every turn forks the input log, runs on a working copy, and merges only successful episodes back.
Session branches
Optional tree-shaped durable history with checkout, fork, and rebase via @apeira/session.
Interrupt
Cancel individual turns, interrupt active work while preserving context, or reset the agent to a clean baseline.