# Host-Bridge Runtime Roadmap Plan

> Date: 2026-04-19
> Parent Framework: `2026-04-19-scene-skill-102-full-coverage-framework-plan.md`
> Parent Sequence: `2026-04-19-final-2-residual-child-plan-sequence-plan.md`
> Fixed Scene: `sweep-085-scene`
> Status: Draft

## Plan Intent

Run a bounded host-bridge runtime slice for the single remaining `host_bridge_workflow` residual.

## Fixed Input Bucket

1. `sweep-085-scene`

## Allowed Files

1. `src/generated_scene/analyzer.rs`
2. `src/generated_scene/generator.rs`
3. `tests/scene_generator_test.rs`
4. `tests/fixtures/generated_scene/host_bridge_runtime_followup_2026-04-19.json`
5. `tests/fixtures/generated_scene/host_bridge_runtime_reconciliation_candidates_2026-04-19.json`
6. `docs/superpowers/reports/2026-04-19-host-bridge-runtime-roadmap-report.md`

## Forbidden Files

1. `tests/fixtures/generated_scene/scene_execution_board_2026-04-18.json`

## Tasks

1. Freeze the current `sweep-085-scene` generation report.
2. Identify the exact host-bridge runtime missing piece.
3. Implement at most one bounded correction slice if it can be expressed in generated-scene contract or fail-closed reporting.
4. Rerun only `sweep-085-scene`.
5. Publish follow-up and reconciliation candidate assets.

## Expected Delta

Target delta is `+1 framework-auto-pass-candidate` if the host-bridge contract can be closed without full runtime transport. Otherwise the delta is `0`, with a narrower named runtime hold.

## Stop Statement

Stop after the single-scene follow-up and reconciliation candidates are published. Do not update the official board under this plan.