# HyperTwist Phase S2-B first-party clean-room command-contract specs implementation packet

Created on `2026-05-29`

## Status

- first-party HyperTwist packet
- bounded `Phase S2-B` implementation slice

## Purpose

This packet lands the bounded first-party clean-room command-contract seam
under the canonical `Skillization And Command Surface` doctrine.

The landed slice is:

- first-party command-contract specs for restrictive lanes
- bounded safety model for future clean-room skill work

It is not:

- live clean-room skill implementation
- donor command promotion
- broader training/coaching pack widening

## Current authority basis

This implementation packet stands on:

- `docs/ops/HYPERTWIST_SKILLIZATION_AND_COMMAND_SURFACE_DOCTRINE_2026-05-21.md`
- `docs/ops/HYPERTWIST_OPTIONAL_ASSISTIVE_FEATURE_DEACTIVATION_AND_REMOVABILITY_DOCTRINE_2026-05-21.md`
- `docs/ops/HYPERTWIST_IMPLEMENTATION_PHASE_1_KICKOFF.md`
- `docs/v6_5_deep_manual_pack/HyperTwist/ARCHITECTURE.md`
- `docs/v6_5_deep_manual_pack/HyperTwist/FEATURE_REGISTRY.md`
- `docs/v6_5_deep_manual_pack/HyperTwist/SKILLS.md`
- `docs/v6_5_deep_manual_pack/HyperTwist/PROVENANCE_AND_TRUST_MODEL.md`
- `docs/arch/HYPERTWIST_PHASES2_B_FIRST_PARTY_CLEAN_ROOM_COMMAND_CONTRACT_SPECS_PREPARATION_PACKET_2026-05-29.md`

## Landed scope

The current code now owns a bounded first-party clean-room command seam
through:

- registry promotion for:
  - `skill/roux-session-review`
- stable first-party command/service contract declarations for:
  - bounded Roux session review briefing
- canonical clean-room command-contract and aggregate state contracts in:
  - `HyperTwistSkillTypes.h`
- first-party command-contract derivation over the landed registry, control-state, and authoring-harness seams in:
  - `UHyperTwistSkillCoreLibrary`
- sample contract helpers in:
  - `UHyperTwistContractLibrary::MakeSampleSkillCleanRoomCommandContractState()`
  - `UHyperTwistContractLibrary::SerializeSkillCleanRoomCommandContractStateToJson(...)`
  - `UHyperTwistContractLibrary::DeserializeSkillCleanRoomCommandContractStateFromJson(...)`
- focused automation coverage in:
  - `HyperTwistSkillPhaseS2BCleanRoomCommandContractSpecTest.cpp`

## Why this is still intentionally bounded

This packet lands clean-room command contracts and safety rules only.

Still deferred:

- live clean-room skill wrappers
- broader training/coaching pack widening

## Validation

Build validation:

- `UnrealHyperTwistEditor Win64 Development`

Focused automation validation:

- `HyperTwist.FirstParty.Skill.PhaseS2B.CommandContractSpec`
- `HyperTwist.FirstParty.Skill.PhaseS2B.SafetyModel`
- `HyperTwist.FirstParty.Skill.PhaseS2B.SerializationRoundTrip`

Observed:

- `3` focused `Phase S2-B` automation tests succeeded

## Queue effect

This packet consumes the current `Phase S2-B` implementation slice.

After this landing:

- `S2-B` is landed in current code
- `S2-C` is the next clean skillization move
- live clean-room skill behavior still remains deferred behind `S2-C`
