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.

Bounded parallel stage execution (bc#23, execution-plan.md §4.1): run_plan_parallel additionally dispatches the members of a stage on scoped worker threads, bounded by plan.concurrency, while COMMITTING interpretation (Skip / Policy Kind / Failure) in ascending index order — the observed result (tree / executed / skipped / failure code+message) is byte-identical to run_plan. It requires exec: Fn + Sync (callable from multiple threads), which is why it is a separate, additive entry point: run_plan keeps the FnMut seam (and stays sequential — a conforming §4.1 fallback) so existing consumers, including crate::behavior::run_behavior’s stateful exec closure, are untouched.

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).

run_plan_parallel

Bounded parallel variant of run_plan (bc#23).