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

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+# OpenSpec Change: enterprise-gaming-r3f-npc
+
+- **Change ID**: enterprise-gaming-r3f-npc
+- **Package**: `@suaveplan/r3f-npc`
+- **Category**: gaming/gameplay
+- **Target path**: `gaming/gameplay/r3f-npc`
+- **Status**: PROPOSED
+- **Date**: 2026-04-24
+
+---
+
+## Summary
+
+Deliver `@suaveplan/r3f-npc` on the genesis branch from scratch at enterprise quality. The package is the R3F rendering layer for `@suaveplan/npc`: `NpcMesh` composing `@suaveplan/r3f-character` locomotion with NPC state from the NpcRegistry, `BehaviorTreeDebug` overlay visualizing node states (running/success/failure) in a floating tree panel, `NpcNameplate` billboarded nameplate with health bar and status icon, `DialogueTrigger` component showing proximity-based interaction prompt and wiring into `@suaveplan/dialogue`, and `NpcMarker` minimap dot. Genesis adds 100% coverage and Storybook stories.
+
+---
+
+## Available workspace deps
+
+`@suaveplan/npc`, `@suaveplan/behavior-tree`, `@suaveplan/dialogue`, `@suaveplan/r3f-character`, `@suaveplan/r3f-ui`, `@suaveplan/error`, `@suaveplan/types`, react, `@react-three/fiber`, `@react-three/drei`, three.
+
+---
+
+## Public API surface
+
+```ts
+function NpcMesh(props: NpcMeshProps): JSX.Element
+// npcId, model, showNameplate, showDebug
+
+function BehaviorTreeDebug(props: BehaviorTreeDebugProps): JSX.Element
+// treeRef, visible, position
+
+function NpcNameplate(props: NpcNameplateProps): JSX.Element
+// name, health, maxHealth, statusIcon
+
+function DialogueTrigger(props: DialogueTriggerProps): JSX.Element
+// npcId, triggerRadius, prompt
+
+function NpcMarker(props: NpcMarkerProps): JSX.Element
+// npcId, icon, color
+```
+
+---
+
+## File layout
+
+```text
+gaming/gameplay/r3f-npc/
+  package.json / tsconfig.json / vitest.config.ts
+  src/
+    index.ts / error-codes.ts
+    types/common.ts + md
+    components/
+      NpcMesh/ (tsx + md + test + stories + index)
+      BehaviorTreeDebug/ (tsx + md + test + stories + index)
+      NpcNameplate/ (tsx + md + test + stories + index)
+      DialogueTrigger/ (tsx + md + test + stories + index)
+      NpcMarker/ (tsx + md + test + stories + index)
+  tests/integration.test.ts
+```

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

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+# Tasks: enterprise-gaming-r3f-npc
+
+## 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/gameplay/r3f-npc/` (`@suaveplan/r3f-npc`, `0.1.0`, `sideEffects: false`)
+
+## Phase 2 — Types + error codes
+
+- [ ] `src/types/common.ts` + `common.md`
+- [ ] `src/error-codes.ts`
+
+## Phase 3 — Components
+
+- [ ] `NpcMesh` — composes r3f-character with NpcRegistry state
+- [ ] `BehaviorTreeDebug` — floating tree panel with node status colors
+- [ ] `NpcNameplate` — billboarded name + health bar + status icon
+- [ ] `DialogueTrigger` — proximity interaction prompt wired to @suaveplan/dialogue
+- [ ] `NpcMarker` — minimap dot with icon/color
+- [ ] Tests + Storybook stories for each
+
+## Phase 4 — Integration tests
+
+- [ ] `tests/integration.test.ts` — NPC state → mesh, dialogue trigger proximity
+
+## Phase 5 — Pre-publish gate
+
+- [ ] `bunx turbo lint typecheck test --filter=@suaveplan/r3f-npc` green
+- [ ] 100% coverage
+- [ ] Publish: `bun scripts/publish.ts --package @suaveplan/r3f-npc`