# HyperTwist Phase 8A browser status-surface hardening implementation packet

Created on `2026-06-19`

## Status

- first-party HyperTwist packet
- bounded first-party `Phase 8A` continuation slice

## Purpose

This packet hardens the already-landed embedded browser shipping lane one layer
above the runtime-ready handshake.

The landed slice is:

- add a shared first-party browser boot-state helper so bundled and fallback
  shells project the same runtime facts
- expose a compact `Browser Runtime Status` surface inside the authoritative
  bundled shell and the clean-checkout fallback shell
- surface runtime mode, bootstrap/runtime-ready timestamps, startup queue
  carryover, and live bridge traffic instead of leaving those facts implicit
- add focused verification that the new status surface remains present in both
  browser lanes

It is not:

- a topology widening into a browser-first client
- a native renderer-port packet
- a reversal of the landed embedded browser/CEF shipping posture

## Current authority basis

This implementation packet stands on:

- `docs/ops/HYPERTWIST_COMPREHENSIVE_RECONSTRUCTION_ROADMAP_2026-06-10.md`
- `docs/v6_5_deep_manual_pack/HyperTwist/ROADMAP.md`
- `docs/v6_5_deep_manual_pack/HyperTwist/FEATURE_REGISTRY.md`
- `docs/arch/HYPERTWIST_PHASE8A_EMBEDDED_BROWSER_RUNTIME_HARDENING_IMPLEMENTATION_PACKET_2026-06-19.md`
- `docs/arch/HYPERTWIST_PHASE8B_OPTIONAL_FULL_BROWSER_CLIENT_HTTP_BACKEND_PREPARATION_PACKET_2026-06-19.md`

## Landed scope

Current code now hardens the live embedded-browser lane through:

- `Content/Browser/src/runtime/boot-state.ts` as the shared browser boot-state
  owner for:
  - runtime mode and status id
  - bootstrap and runtime-ready timestamps
  - queued command and shell-state counts at runtime-ready
  - command and shell-state receipt counts and latest timestamps
- `Content/Browser/src/runtime/bridge.ts` boot-state updates whenever Unreal
  command or shell-state payloads arrive through the embedded bridge
- `Content/Browser/src/runtime/shell.ts` status-panel ownership in the bundled
  authoritative shell
- `Content/Browser/src/browser-spatial-runtime-fallback.js` matching
  status-panel ownership in the clean-checkout fallback shell
- a first-party `browser-runtime-status` envelope path so the shell can send
  its current status snapshot back through Unreal on demand
- focused shell verification in `Content/Browser/scripts/verify-browser-shell.mjs`
- focused browser automation in
  `UnrealHyperTwist/Source/UnrealHyperTwist/Tests/HyperTwistBrowserBridgeObjectTest.cpp`
  for the new status-surface artifacts

## Why this hardening mattered

The runtime-ready queue hardening closed the early delivery gap, but the
shipping lane still made operators infer whether the embedded shell had
upgraded into bundled mode, how much startup traffic had been replayed, and
whether Unreal bridge traffic had actually started flowing.

This packet makes those facts explicit inside the embedded shell itself while
preserving the already-landed browser ownership boundary.

## Validation

Local browser validation:

- `npm --prefix Content/Browser run verify:shell`
- result on `2026-06-19`: passed
- `npm --prefix Content/Browser run build`
- result on `2026-06-19`: succeeded after restoring local browser dependencies
  in the validation environment

Windows build validation:

- `Build.bat UnrealHyperTwistEditor Win64 Development -Project='C:\HyperTwist_worktrees\phase10validate\UnrealHyperTwist\UnrealHyperTwist.uproject' -WaitMutex -NoHotReloadFromIDE -NoUba`
- result on `2026-06-19`: `Result: Succeeded` with UnrealBuildTool
  `Total execution time: 160.16 seconds` on isolated worktree
  `C:\HyperTwist_worktrees\phase10validate`

Focused browser validation:

- `Automation RunTests HyperTwist.Browser`
- result on `2026-06-19`: found `7` `HyperTwist.Browser.*` tests and passed
  all `7`, exporting the report to
  `Saved\AutomationReports\Browser-StatusSurface-Verify`, including the new:
  - `Widget.StatusSurfaceArtifacts`

## Product effect

This packet keeps the live embedded browser/CEF shipping lane intact, but it
raises its truthfulness and inspectability:

- bundled and fallback shells now project the same runtime-health vocabulary
- retained startup queue carryover is visible instead of silent
- bridge traffic can be checked from inside the shell without widening product
  topology
- `Phase 7A` browser-host posture remains reinforced rather than reopened

Follow-on continuation:

- `docs/arch/HYPERTWIST_PHASE8A_BROWSER_RUNTIME_STATUS_NATIVE_CAPTURE_IMPLEMENTATION_PACKET_2026-06-19.md`
  now records the adjacent Unreal-side typed capture seam for the same
  `browser-runtime-status` vocabulary, so the native host retains the last
  valid runtime snapshot instead of only raw JSON.
