Documentation Index
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Documentation preview: These docs are a work in progress and have not been formally released yet. We update them iteratively as internal Aion development progresses.
Invocation-scoped AionRuntimeContext for LangGraph.
AionRuntimeContext
populated by Aion Server. It carries the inbound inbox, typed event, and
distribution payload for the current request.
Thread and Message are authoring helpers built on top of it. When using
create_event_router, they are injected automatically — you rarely need to
reach into the context directly.
AionRuntimeContext as the graph context schema, then access it via
Runtime[AionRuntimeContext] in any node:
from langgraph.graph import StateGraph
from langgraph.runtime import Runtime
from aion.core.runtime import AionRuntimeContext
from aion.langgraph.authoring import Thread
async def node(state: State, runtime: Runtime[AionRuntimeContext]) -> dict:
context = runtime.context
thread = Thread.from_context(context)
...
builder = StateGraph(State, context_schema=AionRuntimeContext)