Task — engineering-spec@1

"Erasure - crypto-shredding (per-subject DEKs), lineage cascade, ghost-vector reindex, backup re-deletion"

draftTASK-MEMORY-240
module memory · class product · priority p0 · created 2026-07-08 · shipped null
depends on TASK-MEMORY-239, TASK-MEMORY-214 · blocks none

TASK-MEMORY-240: Erasure - crypto-shredding (per-subject DEKs), lineage cascade, ghost-vector reindex, backup re-deletion

1. Description

erasure drill removes plaintext+vectors for a test subject, chain stays verifiable, restore replays erasure ledger; field-level crypto for sensitive kinds

Migrated 2026-07-08 from the memory improvement backlog, folded into the task system as class: improvement. Source report refs: R82, R84, R89, F21.

Acceptance criteria