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openspec/changes/enterprise-gaming-r3f-xr/proposal.md

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+# OpenSpec Change: enterprise-gaming-r3f-xr
+
+- **Change ID**: enterprise-gaming-r3f-xr
+- **Package**: `@suaveplan/r3f-xr`
+- **Category**: gaming/devices
+- **Target path**: `gaming/devices/r3f-xr`
+- **Status**: PROPOSED
+- **Date**: 2026-04-24
+
+---
+
+## Summary
+
+Deliver `@suaveplan/r3f-xr` on the genesis branch from scratch at enterprise quality. The package provides WebXR/VR/AR integration for React Three Fiber: `XRProvider` initializing the WebXR session, `useXR` hook (session type, referenceSpace, frame), `XRController` components for left/right hand meshes with ray pointer and grip pose, `HandTracking` with 25-joint skeleton rendering, `XRButton` for session entry/exit, and `TeleportTarget` for locomotion. Builds on `@react-three/xr` primitives with structured errors from `@suaveplan/error`. Genesis adds 100% coverage and Storybook stories.
+
+---
+
+## Available workspace deps
+
+`@suaveplan/error`, `@suaveplan/types`, react, `@react-three/fiber`, `@react-three/drei`, `@react-three/xr`, three.
+
+---
+
+## Public API surface
+
+```ts
+type XRSessionMode = 'immersive-vr' | 'immersive-ar' | 'inline'
+
+function XRProvider(props: XRProviderProps): JSX.Element
+// sessionMode, referenceSpace, children
+
+function XRController(props: XRControllerProps): JSX.Element
+// hand: 'left' | 'right', showRay, showGrip
+
+function HandTracking(props: HandTrackingProps): JSX.Element
+// hand: 'left' | 'right', showJoints, showMesh
+
+function XRButton(props: XRButtonProps): JSX.Element
+// sessionMode, onSessionStart, onSessionEnd
+
+function TeleportTarget(props: TeleportTargetProps): JSX.Element
+// onTeleport(position: THREE.Vector3)
+
+function useXR(): XRContext
+// session, sessionMode, referenceSpace, isPresenting, frame
+```
+
+---
+
+## File layout
+
+```text
+gaming/devices/r3f-xr/
+  package.json / tsconfig.json / vitest.config.ts
+  src/
+    index.ts / error-codes.ts
+    types/common.ts + md
+    context/xr-provider.tsx + md + test
+    hooks/use-xr.ts + md + test
+    components/
+      XRController/ (tsx + md + test + stories + index)
+      HandTracking/ (tsx + md + test + stories + index)
+      XRButton/ (tsx + md + test + stories + index)
+      TeleportTarget/ (tsx + md + test + stories + index)
+  tests/integration.test.ts
+```

openspec/changes/enterprise-gaming-r3f-xr/tasks.md

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+# Tasks: enterprise-gaming-r3f-xr
+
+## 0. Pre-flight (non-negotiable)
+
+- [ ] 0.1 Confirm clean working tree (`git status` reports nothing) and no in-flight worktrees with uncommitted work (`git worktree list` then `git status` in each)
+- [ ] 0.2 If any worktrees exist under `.claude/worktrees/`, account for each one: still-active agent, work-pending-merge, or stale-and-prune. Stale worktrees MUST be removed (`git worktree remove`) before opening a new one — code that has been lost twice on main is the failure mode this guards against.
+- [ ] 0.3 Confirm the package set in `MANIFEST.md` matches `find packages -maxdepth 3 -name package.json` count. Drift here means a prior change archived without regenerating the manifest.
+
+## Phase 1 — Scaffold
+
+- [ ] Create `gaming/devices/r3f-xr/` (`@suaveplan/r3f-xr`, `0.1.0`, `sideEffects: false`)
+
+## Phase 2 — Types + error codes
+
+- [ ] `src/types/common.ts` + `common.md`
+- [ ] `src/error-codes.ts`
+
+## Phase 3 — Context + hook
+
+- [ ] `src/context/xr-provider.tsx` — WebXR session initialization, referenceSpace
+- [ ] `src/hooks/use-xr.ts` — session, isPresenting, frame
+- [ ] Tests + docs
+
+## Phase 4 — Components
+
+- [ ] `XRController` — left/right hand mesh, ray pointer, grip pose
+- [ ] `HandTracking` — 25-joint skeleton rendering
+- [ ] `XRButton` — session entry/exit
+- [ ] `TeleportTarget` — locomotion destination mesh
+- [ ] Tests + Storybook stories for each
+
+## Phase 5 — Integration tests
+
+- [ ] `tests/integration.test.ts` — session lifecycle, controller tracking
+
+## Phase 6 — Pre-publish gate
+
+- [ ] `bunx turbo lint typecheck test --filter=@suaveplan/r3f-xr` green
+- [ ] 100% coverage
+- [ ] Publish: `bun scripts/publish.ts --package @suaveplan/r3f-xr`