C.19:1 - Problem frame
C.19 describes named, versioned policies and lenses for treating a still-live pool after C.18 generation, archive, or front records exist.
When C.11 has already made local choice among one fixed OptionSet explicit, C.19 begins where the question becomes policy over several still-live candidate lines, family regions, or frontier segments rather than one more local ChoiceResult record.
Immediate failure indicators for this pattern:
- the current pool-policy result cannot name the still-live candidate pool whose treatment it states
- the governing lens or policy state is missing
- the next pool-side treatment exists only as one vague promise to continue exploration later
If the live question is not treatment of a still-live pool, use the exact exit in C.19:4.4. C.19 begins or continues only while the pool-policy question is current.