Module core 

Core runtime primitives: Engine + Ctx + State + Config.

Modules

agent_context

AgentContextView — Contract C: the task-level context that must reach the LLM/Agent boundary, materialized once and consumed by every axis.

config

EngineCfg + LongHoldConfig.

ctx

Ctx and OperatorInfo — cross-cutting context threaded through the engine.

engine

Engine — the long-running stateful runtime plus the with_state helper (R1-R4 discipline).

errors

Engine error type.

projection

ProjectionAdapter — pull-based supply of step OUTPUT data to downstream Agent steps, materialized from run Ctx state.

projection_placement

ProjectionPlacement — the single resolver that decides where a Step’s materialized OUTPUT file lives on disk.

state

EngineState — the single Mutex-guarded state object — plus the supporting types.

step_naming

StepNaming — GH #23: the Blueprint-declared step-projection naming table.