Context
The research record preserves failed approaches when they expose a model boundary, an invalid transfer, or an unsupported strengthening.
Proof or evidence
a generated linear form at last use has no parent-side consumer to protect and can transfer ownership into the child. Only raw pass-through operands need an entry copy.
Verification notes
The failure status and preserved lesson are recorded in the cumulative failure ledger.
Limitations
- distinguish owned generated values from borrowed raw values at recursive seams.