# SUPERSEDED

This change proposal was authored 2026-04-24 against a now-defunct folder layout (`gaming/engine/ecs/`) and lacked the source-mapping and `Verified by:` discipline that `openspec/AGENTS.md` §13/§14 now require.

It is **superseded** by `openspec/archive/2026-05-19-enterprise-ecs/`, which:

- Targets the current `packages/games/ecs/` path per `scripts/folder-reorg/assignment.yml`.
- Faithfully ports the upstream `@suaveplan/ecs` design (`Uint32Array` BitSet, archetype-based) rather than redesigning to BigInt masks.
- Adds the genesis enterprise floor per `../suaveplan/enterprise/ecs.md` (Zod, OTel, structured errors, fast-check property tests).
- Carries a complete `## Source mapping` table and `**Verified by:**` lines on every requirement.

No code was ever produced against this proposal.