claw/docs/superpowers/plans/2026-04-19-boundary-runtime-prerequisites-roadmap-plan.md

Boundary Runtime Prerequisites Roadmap Plan

Date: 2026-04-19 Status: Draft Upstream Spec: 2026-04-19-boundary-runtime-prerequisites-roadmap-design.md

Plan Intent

This roadmap determines the next bounded prerequisites slice after the post-G7 boundary decision concludes that direct G6 or G8 execution should not start yet.

Its only purpose is:

select one bounded prerequisite direction before the next boundary-family real-sample attempt

Scope Guardrails

1. do not execute G6 or G8
2. do not reopen G7
3. do not reopen G1-E / G2 / G3
4. do not implement host-runtime or local-doc runtime under this roadmap
5. do not open G4 / G5

Candidate Prerequisite Directions

The only candidates under this roadmap are:

1. G6 host-bridge prerequisites
2. G8 local-doc prerequisites

Workstreams

1. WS1 Freeze the Post-G7 Boundary Hold State
2. WS2 Compare G6 and G8 Prerequisite Burden
3. WS3 Select One Prerequisite Direction
4. WS4 Publish the Next Bounded Prerequisites Slice

Phase 0: Freeze the Starting State

Objective

Lock the roadmap start point so no closed family work is reopened.

Tasks

1. freeze G7 as closed
2. freeze G6 and G8 as held pending prerequisites
3. freeze G1-E / G2 / G3 as closed
4. freeze G4 / G5 as out of scope

Deliverables

1. starting-state note
2. fixed prerequisite candidate list

Acceptance Criteria

1. no family execution begins under this roadmap

Phase 1: Compare Prerequisite Burden

Objective

Compare G6 and G8 at the prerequisite level instead of at the execution level.

Tasks

1. restate the smallest blocked capability for G6
2. restate the smallest blocked capability for G8
3. compare which prerequisite can be isolated more cleanly

Deliverables

1. prerequisite comparison matrix
2. smallest-prerequisite summary

Acceptance Criteria

1. the selected prerequisite direction is justified explicitly

Phase 2: Select One Prerequisite Direction

Objective

Reduce the post-G7 prerequisite ambiguity to one bounded decision.

Tasks

1. select exactly one direction:
   • G6 host-bridge prerequisites
   • or G8 local-doc prerequisites
2. record why the other direction remains held

Deliverables

1. prerequisite direction decision
2. hold reason for the non-selected direction

Acceptance Criteria

1. only one next direction is opened
2. the decision is bounded and defensible

Phase 3: Publish the Next Bounded Slice

Objective

Turn the decision into the next executable bounded artifact.

Tasks

1. write one bounded follow-up design and plan for the selected prerequisite direction
2. publish a roadmap closure report

Deliverables

1. next bounded design
2. next bounded plan
3. roadmap closure report

Acceptance Criteria

1. the next step is ready without extending this roadmap
2. only one bounded direction is emitted