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Antigravity Agent c24165b8bc 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>

2026-07-11 11:05:56 +09:00

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title

Web Rendering Strategies — CSR vs SSR

매 한 줄

"매 어디서 render 매 (server/build/client/edge), 매 언제 (request/build/runtime), 매 무엇 (static/dynamic) — 매 이 3 축 의 매 trade-off". 매 2026 매 hybrid (RSC + Streaming SSR + ISR + Edge) 매 default — Next.js / Nuxt / Remix / SvelteKit / Astro 매 모두 mix.

매 핵심

매 5 가지 strategy

CSR (Client-Side Rendering): empty HTML + JS bundle → browser 매 render. SPA classic.
SSR (Server-Side Rendering): per-request HTML on server.
SSG (Static Site Generation): build-time HTML.
ISR (Incremental Static Regeneration): SSG + on-demand or time-based revalidate.
RSC (React Server Components, 2023~): server-only component, zero JS ship for that part.

매 핵심 metric

TTFB: server response time.
FCP / LCP: 매 visible content speed.
TTI: 매 interactive — hydration cost.
INP: 매 interaction latency (FID 의 후속, Core Web Vitals 2024+).
JS bundle: 매 작을 수록 hydration fast.

매 응용

Marketing site → SSG / ISR (Astro, Next).
E-commerce → ISR + dynamic SSR for cart.
Dashboard / admin → CSR or SSR with auth.
Blog → SSG + ISR.
Real-time chat → CSR + SSE/WebSocket.
News site → ISR (revalidate every 60s).

💻 패턴

Next.js App Router (RSC + streaming)

// app/products/[id]/page.tsx — RSC, fetched on server, no JS shipped
export default async function ProductPage({ params }: { params: { id: string } }) {
  const product = await db.product.findUnique({ where: { id: params.id } });
  return (
    <article>
      <h1>{product.name}</h1>
      <Suspense fallback={<Skeleton />}>
        <Reviews productId={params.id} />
      </Suspense>
    </article>
  );
}

ISR with revalidate

// Next.js — 매 60s 마다 background regenerate
export const revalidate = 60;
export default async function Posts() {
  const posts = await fetch("https://api.example.com/posts").then((r) => r.json());
  return <ul>{posts.map((p) => <li key={p.id}>{p.title}</li>)}</ul>;
}

SSG with `generateStaticParams`

export async function generateStaticParams() {
  const slugs = await getAllSlugs();
  return slugs.map((slug) => ({ slug }));
}

CSR via dynamic + ssr:false

"use client";
import dynamic from "next/dynamic";
const Chart = dynamic(() => import("./HeavyChart"), { ssr: false });
export default function Page() { return <Chart />; }

Streaming SSR (Suspense)

// app/dashboard/page.tsx
export default function Dashboard() {
  return (
    <>
      <Header />
      <Suspense fallback={<Skel />}><SlowWidget /></Suspense>
      <Suspense fallback={<Skel />}><AnotherSlow /></Suspense>
    </>
  );
}
// 매 shell 먼저 flush, 매 widget ready 시 stream

Edge runtime (Vercel / Cloudflare Workers)

// Next.js — Edge 매 cold start 매 0 에 가까움
export const runtime = "edge";
export async function GET(req: Request) {
  const country = req.headers.get("x-vercel-ip-country") ?? "US";
  return new Response(`Hello from ${country}`);
}

Astro islands

---
// 매 default static, 매 island 만 hydrate
import Counter from "../components/Counter.tsx";
const posts = await fetch("...").then((r) => r.json());
---
<html>
  <body>
    {posts.map((p) => <article><h2>{p.title}</h2></article>)}
    <Counter client:visible />  <!-- viewport entry 시 hydrate -->
  </body>
</html>

On-demand revalidation

// Next.js — webhook 받으면 매 즉시 invalidate
import { revalidateTag, revalidatePath } from "next/cache";
export async function POST(req: Request) {
  const { tag } = await req.json();
  revalidateTag(tag);
  return Response.json({ ok: true });
}

매 결정 기준

상황	Approach
Static marketing	SSG / Astro
Blog with comments	SSG + CSR comments
News feed (changes hourly)	ISR (revalidate=3600)
Product page + cart	RSC + Client island for cart
Real-time dashboard	CSR + WebSocket
Geo-personalized	Edge SSR
Authenticated app	SSR with auth + RSC

기본값: Next.js App Router (RSC default) + Suspense streaming + ISR for content. 매 client component 매 조심히.

🔗 Graph

부모: Large_Frontend_Projects · Web Performance
변형: CSR · SSR · SSG · ISR · RSC
응용: Astro · SvelteKit · Remix
Adjacent: Streaming SSR · Edge Runtime · Hydration · Core Web Vitals Optimization (INP, LCP, CLS) · Islands Architecture

🤖 LLM 활용

언제: Rendering strategy 결정, Next.js / Nuxt / Astro setup, Core Web Vitals tuning. 언제 X: Pure native app, internal CLI, embedded device UI.

❌ 안티패턴

CSR for SEO-critical content: 매 crawler 매 problem.
SSR everywhere without caching: 매 server CPU 폭발 — ISR / cache 도입.
Hydration mismatch: server HTML ≠ client render — 매 console error + flicker.
Massive client bundle: 매 hydration TTI 늦어짐 — RSC / island 활용.
No streaming: 매 slow API 매 entire page block — Suspense.
Misuse of "use client": 매 RSC tree 의 매 leaf 만 client.

🧪 검증 / 중복

Verified (Next.js 15 docs, Vercel team blog, web.dev rendering guide 2025).
신뢰도 A.

🕓 Changelog

날짜	변경
2026-05-08	Phase 1
2026-05-10	Manual cleanup — RSC, streaming, ISR, edge runtime patterns

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