# HyperTwist Phase S5-C Preparation Packet

Date: `2026-05-31`

Packet: `Phase S5-C`

Title: `first-party plan synthesis and orchestration glue`

## Goal

Land the next bounded first-party skill seam by exposing plan-synthesis and
bounded workflow-chaining surfaces above the landed implementation/delegation,
workflow-memory, and workflow/review seams.

## Scope

- `skill/synthesize-plan`
- `skill/chain-bounded-workflow`
- bounded first-party plan/orchestration state over authoritative
  implementation, workflow-memory, workflow/review, and packet source surfaces
- registry, control-state, audit-ledger, authoring-harness, sample-contract,
  and JSON support

## Required boundaries

- do not widen into provider-neutral routing/profile skills yet
- do not widen into usage/operations audit skills yet
- do not widen into domain or creative skill packs
- keep plan/orchestration output provenance-visible, bounded,
  derived-assistive, and first-party owned

## Inputs

- landed `S1-A` through `S5-B` skill substrate
- landed first-party architecture, roadmap, feature-registry, and provenance
  authority surfaces

## Acceptance gate

- plan/orchestration surfaces remain bounded to plan synthesis and workflow
  chaining only and do not claim provider routing, domain orchestration, or
  autonomous execution ownership
