session_brief
Session brief (call at session start)
Call once at the start of a session: what changed since your last run that can break THIS stack, and what you must do now. Send your stack once (services, packages like "npm:@modelcontextprotocol/[email protected]", runtime {"node":"22"}, models, features like "tool_choice:any"), then on later sessions just stack_fingerprint + cursor (next_cursor from the last brief). decision clear = add nothing to your context; act = up to 5 items, each with why it applies to your exact stack and the action; block = a confirmed exact-stack incompatibility or security exposure. Strict: service-only matches never appear.
cursormodelsruntimefeaturespackagesservicesinstalledbudget_tokensstack_fingerprint