claw/docs/superpowers/plans/2026-04-19-g6-host-bridge-prerequisites-plan.md

G6 Host-Bridge Prerequisites Plan

Date: 2026-04-19 Status: Draft Upstream Spec: 2026-04-19-g6-host-bridge-prerequisites-design.md

Plan Intent

This plan executes one bounded next slice:

G6 host-bridge prerequisites

Scope Guardrails

1. do not execute a G6 real sample
2. do not implement host-runtime directly under this plan
3. do not reopen G7
4. do not open G8
5. do not open G4 / G5

Workstreams

1. WS1 Freeze the G6 prerequisite boundary
2. WS2 Isolate the minimum blocked host-bridge capability
3. WS3 Publish one bounded prerequisite result

Phase 0: Freeze the Boundary

Objective

Lock the plan to G6 prerequisite scoping only.

Tasks

1. freeze G6 as the only target
2. freeze G6 real-sample execution as out of scope

Acceptance Criteria

1. no other boundary family is touched under this plan

Phase 1: Isolate the Minimum Blocked Capability

Objective

Reduce G6 prerequisite pressure to the smallest explicit capability gap.

Tasks

1. restate the current G6 hold condition
2. isolate the minimum host-bridge execution semantic still missing
3. keep that capability separate from broader runtime-platform work

Acceptance Criteria

1. the blocked capability is explicit and bounded

Phase 2: Publish the Bounded Result

Objective

Turn the isolated prerequisite into one bounded next artifact.

Tasks

1. publish the prerequisite result
2. if needed, publish the next bounded follow-up plan

Acceptance Criteria

1. the next step is narrower than broad host-runtime implementation