Module node 

Node trait + per-superstep context + helper closure adapter.

Structs

NodeCtx

Per-superstep context handed to every Node::execute call. Carries run-correlation metadata and the active RunnableConfig. The lifetime is the superstep — don’t hold across awaits beyond execute returning.

NodeFn

Closure adapter — wrap any Fn(&S, &NodeCtx) -> Future as a Node.

NodeOut

Output of a node’s execute: a typed state delta + where to go next.

NodeRetryPolicy

Per-task retry policy. The engine wraps Node::execute calls in a retry loop when the node returns a Some policy and the call fails with a cognis_core::CognisError whose is_retryable() is true.

Traits

Node

The unit of computation in a graph. Async, takes a &S snapshot of state

Functions

node_fn

Build a NodeFn from a closure. The closure receives (&S, &NodeCtx) and returns Future<Output = Result<NodeOut<S>>>.