# HyperTwist Phase S2-C first-party clean-room skill specs preparation packet

Created on `2026-05-29`

## Status

- first-party HyperTwist packet
- source-backed `Phase S2-C` preparation/control slice

## Purpose

This packet scopes the bounded clean-room skill-spec seam under the canonical
`Skillization And Command Surface` doctrine.

The granted slice is:

- clean-room-ready skill specs
- first-party skill-spec state for restrictive lanes

It is not:

- live restrictive skill wrapper behavior
- broader training/coaching pack widening
- donor wording or donor command promotion

## Current authority basis

This control pass 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_IMPLEMENTATION_PACKET_2026-05-29.md`

## Granted family

The bounded `Phase S2-C` slice may land:

1. first-party clean-room-ready skill-spec state for restrictive lanes
2. first-party input/output/step specification in HyperTwist-owned terms
3. registry promotion from command-contract-specified to skill-spec-specified
4. sample contract helpers and JSON round-trip coverage

The packet must stay out of:

- live restrictive skill runtime behavior
- broader training/coaching domain-pack widening
- donor-derived wording or spec structure

## Proposed implementation shape

Land the narrower first-party boundary through:

- registry promotion for the current restrictive skillization lane:
  - `skill/roux-session-review`
- explicit clean-room skill-spec types and aggregate state
- first-party skill-spec derivation over the landed registry, control,
  authoring-harness, and command-contract seams
- sample contract helpers for:
  - skill-spec-state derivation
  - JSON serialization
  - JSON deserialization
- focused automation in:
  - `HyperTwistSkillPhaseS2CCleanRoomSkillSpecTest.cpp`

## Validation target

Validate with:

- Unreal build for `UnrealHyperTwistEditor Win64 Development`
- focused automation:
  - `HyperTwist.FirstParty.Skill.PhaseS2C.SkillSpecCoverage`
  - `HyperTwist.FirstParty.Skill.PhaseS2C.FirstPartyTermsOnly`
  - `HyperTwist.FirstParty.Skill.PhaseS2C.SerializationRoundTrip`

## Queue effect

If this packet lands cleanly:

- `S2-C` is consumed
- `S3-A` becomes the next clean move
- restrictive runtime behavior still remains separately deferred
