Why exclude old-review?
Its authority version v1 differs from current v2, despite being fresh.
What is default retrieval value?
The budget is 6 tokens. review-v2 (4 tokens, value 8) and summary (2 tokens, value 3) fit exactly, giving 8+3=11 within 6 tokens; old-review is excluded.
Does action preservation prove all future information survives?
No; it checks only the supplied decision vectors.