24. Current Core Model Summary

KAL component document:

KAL Component Document
  = Component Header
  + Operator Body

Component header:

plan | recipe | fragment

Header sections:

inputs
locals
outputs
globals

Scope model:

inputs go down
outputs go up
locals stay local
globals are shared but must be declared

Operator body:

Composite Operators
Data Operators
Action Operators

Core composition:

core.use
  compose a recipe into a plan
  caller: plan
  target: recipe

core.splice
  invoke a fragment subroutine
  caller: plan / recipe / fragment
  target: fragment

Core data movement:

core.assign
  bind source values to writable scoped destinations

core.load_vars
  load a host-defined KDL v2 vars document through explicit capture

capture
  bind operator capture-domain values to writable scope destinations

Core control:

core.each
  sequential iteration with ordered results

when
  structured execution guard

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