Module plan 

plan — execution-plan.md reference implementation.

run_plan(plan, ops, exec): execute stage groups sequentially, interpret null-binding skip, Skip propagation, and Error Policy Kind (fail/retry/continue) to produce a deterministic result tree. Node execution is delegated to exec.

Structs

ExecutionPlanSpec

OpSpec

PlanFailure

RunResult

Enums

ExecOutcome

consumer-supplied node execution outcome (mock).

PlanFailureCode

PolicyKind

RelationKind

Functions

run_plan

Run the plan. exec(op, bound_value) returns the node outcome (mock).