- issue: PyAutoLabs/PyAutoFit#1501 (issued 2026-08-19)
- prompt: active/16_transformed_message_factor_gradient_unpack.md
- status: HOLD — do not start dev. Fix-or-delete hangs off the PyAutoFit#1498 logpdf-contract decision (parked #1500 design bundle); dead code (zero production callers), crashes on first call if ever exercised.
- external: community PR PyAutoLabs/PyAutoFit#1502 (@trexfr-ops) targets this exact unpack — review via /community before any local work; the #1498 adjudication decides whether the method should exist at all.
- registered: 2026-08-19 by the wake_up session — the issuing session (claude/autofit-priors-messages-audit-ylvenv) filed the prompt + issue but not this entry, tripping Lifecycle Drift on main.
- repos-none-claimed: this entry claims NO repos — one line deliberately, not 2-space bullets.