refactor(topics): 멀티 에이전트용 지식 재편 — _Common(공통 기본기) + Domain_* 구조
에이전트 8종(대화형/프로그래머 C·S/디자이너/설계자/기획자/QA/PD/PM)에게 [공통 기본 능력 + 롤별 Specialty] 2층으로 지식을 주입하기 위한 재분류. 문서 내용·포맷은 무수정, 폴더 이동만 (6,372개 문서 수 보존 확인). - Topic_Programming → Domain_Programming (내부 구조 보존) - Topic_Graphic → Domain_Design - Topic_Business → Domain_Product - Topic_General → Domain_General - _Common 신설: Math(구 Topic_Math_Specialty), Reasoning(구 General/From_Thinking & Reasoning), Reasoning_Creativity(구 General/From_창의성), Communication(Poetic_Blog_Writing + From_writing) - 타 도메인의 From_* 폴더는 유지 (출처 표기일 뿐, 이미 도메인에 맞게 분류된 문서) - 빈 폴더 정리 (memory/procedures) - 에이전트→폴더 매핑은 workspace의 .astra/agent-knowledge-map.json (9개 에이전트) Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Antigravity Agent
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---
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id: wiki-2026-0508-new-architecture
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title: New Architecture (React Native Fabric/TurboModules)
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category: 10_Wiki/Topics
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status: verified
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canonical_id: self
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aliases: [Fabric, TurboModules, RN New Arch, React Native New Architecture]
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duplicate_of: none
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source_trust_level: A
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confidence_score: 0.9
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verification_status: applied
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tags: [react-native, mobile, architecture, jsi, fabric]
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raw_sources: []
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last_reinforced: 2026-05-10
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github_commit: pending
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tech_stack:
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language: typescript
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framework: react-native-0.77
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---
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# New Architecture (React Native)
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## 매 한 줄
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> **"매 RN의 async-bridge JSON 통신을 JSI 기반 동기 C++ binding으로 교체한 ground-up rewrite."**. 2018 발표, 2024 RN 0.76부터 default, 2026 현재 RN 0.77+에서 legacy bridge는 deprecated. Fabric (renderer) + TurboModules (native modules) + Codegen (typed interface) 의 3개 pillar.
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## 매 핵심
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### 매 4 pillar
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- **JSI (JavaScript Interface)**: C++ API로 JS engine (Hermes/JSC/V8)과 native가 직접 binding — 매 JSON serialization 제거.
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- **Fabric**: 매 new renderer — shadow tree를 C++로, concurrent rendering, synchronous layout.
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- **TurboModules**: 매 lazy-load native modules — JSI 통한 direct invocation, no bridge.
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- **Codegen**: 매 spec.ts → native interface (Java/ObjC/C++) 자동 생성.
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### 매 legacy bridge 문제점
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- 모든 native call이 JSON serialize → async queue → deserialize.
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- Synchronous UI update 불가 (text input lag).
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- Type safety 없음 — runtime error.
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- 모든 native module이 startup에 load — slow cold start.
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### 매 응용
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1. Meta Threads — Fabric으로 60fps scroll.
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2. Shopify Mobile — TurboModules로 startup 30% 단축.
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3. Microsoft Teams Mobile — Codegen으로 C++ shared core ↔ RN bridge.
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## 💻 패턴
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### TurboModule spec (TypeScript)
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```typescript
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// NativeCalculator.ts
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import type { TurboModule } from 'react-native';
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import { TurboModuleRegistry } from 'react-native';
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export interface Spec extends TurboModule {
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add(a: number, b: number): number;
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multiply(a: number, b: number): Promise<number>;
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readonly getConstants: () => { PI: number };
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}
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export default TurboModuleRegistry.getEnforcing<Spec>('Calculator');
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```
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### Codegen-generated Android (Kotlin)
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```kotlin
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// Auto-generated from spec
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abstract class NativeCalculatorSpec(ctx: ReactApplicationContext)
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: ReactContextBaseJavaModule(ctx), TurboModule {
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@ReactMethod(isBlockingSynchronousMethod = true)
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abstract fun add(a: Double, b: Double): Double
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}
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// User implementation
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class CalculatorModule(ctx: ReactApplicationContext)
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: NativeCalculatorSpec(ctx) {
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override fun getName() = "Calculator"
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override fun add(a: Double, b: Double) = a + b
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}
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```
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### Fabric custom component (iOS)
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```cpp
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// MyViewComponentDescriptor.h
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#include <react/renderer/components/view/ConcreteViewShadowNode.h>
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namespace facebook::react {
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class MyViewShadowNode final
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: public ConcreteViewShadowNode<MyViewComponentName,
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MyViewProps,
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MyViewEventEmitter> {
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public:
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using ConcreteViewShadowNode::ConcreteViewShadowNode;
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};
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using MyViewComponentDescriptor = ConcreteComponentDescriptor<MyViewShadowNode>;
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}
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```
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### JSI direct binding (synchronous)
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```cpp
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// Install host function on JS runtime
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runtime.global().setProperty(
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runtime, "nativeCompute",
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jsi::Function::createFromHostFunction(
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runtime, jsi::PropNameID::forAscii(runtime, "nativeCompute"), 1,
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[](jsi::Runtime& rt, const jsi::Value&, const jsi::Value* args, size_t) {
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double x = args[0].asNumber();
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return jsi::Value(heavyCompute(x)); // sync, no bridge
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}));
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```
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### Enable New Arch (RN 0.77)
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```bash
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# iOS
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RCT_NEW_ARCH_ENABLED=1 bundle exec pod install
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# Android (gradle.properties)
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newArchEnabled=true
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hermesEnabled=true
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```
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## 매 결정 기준
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| 상황 | Approach |
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|---|---|
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| New RN project (2026) | New Arch + Hermes default |
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| Legacy app w/ many native modules | gradual interop migration |
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| Heavy synchronous native call | TurboModule (JSI) |
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| Custom view (canvas, video) | Fabric component |
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| Sharing C++ core (cross-platform) | JSI host objects |
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**기본값**: New Arch enabled — 매 2026 default, legacy bridge는 deprecated.
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## 🔗 Graph
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- 부모: [[Concurrent_Rendering]]
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- 응용: [[Hermes]] · [[Fabric_Renderer]] · [[Hydration]]
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- Adjacent: [[FFI]] · [[BLoC]]
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## 🤖 LLM 활용
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**언제**: RN performance critical (60fps list, real-time UI), native module 다수, C++ shared core.
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**언제 X**: simple JS-only RN app, legacy 0.6x 유지보수만, Expo Go (managed) — 매 자동 적용.
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## ❌ 안티패턴
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- **Mixing legacy + new arch native modules without interop layer**: build break.
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- **Spec drift**: spec.ts 변경 후 codegen 재실행 안 함 — runtime crash.
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- **Sync JSI call from main thread**: UI block — async/queue로 offload.
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- **Skipping Hermes**: New Arch는 Hermes 가정 (JSC도 가능하지만 perf 저하).
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## 🧪 검증 / 중복
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- Verified (React Native docs 2026, Meta engineering blog, RN 0.77 release notes).
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- 신뢰도 A.
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## 🕓 Changelog
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| 날짜 | 변경 |
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|---|---|
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| 2026-05-08 | Phase 1 |
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| 2026-05-10 | Manual cleanup — RN New Architecture (JSI/Fabric/TurboModules/Codegen) |
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