Three-part design doc for an IEventStore backed by a directory tree
instead of SQLite, targeted at the cli/ module.
- overview: goals, directory layout, feature-parity matrix, public API
- pipelines: insert (T1-T8 with crash-safety), query planner, delete,
transactions, concurrency
- nips: replaceable/addressable slot enforcement via hardlinks +
atomic rename, NIP-09 tombstones (hardlink to the kind-5), NIP-40
expirations, NIP-50 FTS via inverted-index hardlinks, NIP-62 vanish
cascade, tag indexing, seed file, scrub/compact, test strategy,
10-step rollout
Claude