gaesup-world: Skill for Claude Code

.claude/skills/add-domain/SKILL.md

add-domain is a skill for Claude Code from jigglypop/gaesup-world. It costs 66 tokens per session (1,413 once invoked), scanned A, original, MIT.

A procedure for adding or extending a software domain using an existing motion-system implementation as the model. It defines layers for engine code, bridges, hooks, components, stores, types, and tests.

In plain words
What is it for?
It is for creating a new domain, connecting its engine to the application, adding user-interface pieces, and placing nearby tests.
Why use it?
It reduces inconsistency by telling developers where new code belongs and which project boundaries to preserve.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is jigglypop/gaesup-world's own configuration. It tells Claude Code how to work on gaesup-world itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything gaesup-world configures →

Reuse

Borrowing it

Nothing to install: this file belongs to jigglypop/gaesup-world. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/jigglypop/gaesup-world/master/.claude/skills/add-domain/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/jigglypop/gaesup-world

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for add-domain

README.md
[![agentmods](https://agentmods.dev/badge/skills/jigglypop/gaesup-world/add-domain/github.svg)](https://agentmods.dev/skills/jigglypop/gaesup-world/add-domain)
Your own site
<a href="https://agentmods.dev/skills/jigglypop/gaesup-world/add-domain"><img src="https://agentmods.dev/badge/skills/jigglypop/gaesup-world/add-domain/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for add-domain

Your own site · 80×15
<a href="https://agentmods.dev/skills/jigglypop/gaesup-world/add-domain"><img src="https://agentmods.dev/badge/skills/jigglypop/gaesup-world/add-domain.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 66 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,413 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00066 $0.01413
Opus 5.5 $0.00026 $0.00565
Sonnet 5.5 $0.00013 $0.00283
Haiku 4.5 $0.00007 $0.00141

Measured 1mo ago against content hash 955f0acc5a11, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

add-domain scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/skills/add-domain/SKILL.md · 94 lines

How it starts

The opening of the file, as written. The whole thing — 94 lines — stays where its author put it; the contents beside it link to each section on GitHub.

도메인 추가/확장 절차

참조 구현: src/core/motions/ (가장 완성도 높은 도메인 — PhysicsSystem, MotionSystem, MotionBridge). 새 코드를 쓰기 전에 대응되는 motions 파일을 먼저 읽고 패턴을 복제할 것.

폴더 템플릿

src/core/<domain>/
  core/        # Layer 1: 순수 엔진. react/zustand/@react-three/fiber import 금지(ESLint 차단). three/rapier 허용.
  bridge/      # Layer 2: CoreBridge 상속. types.ts에 Entity/Snapshot/Command 타입.
  hooks/       # Layer 3: use<Thing>.ts
  components/  # Layer 3: <Name>/{index.tsx, styles.css, types.ts}
  stores/      # <name>Store.ts 또는 slices/<name>/{slice.ts,types.ts}
  __tests__/   # 테스트명 한글, 코드 옆 배치
  types.ts  index.ts  plugin.ts

Layer 2 브리지 계약 (실제 시그니처)

CoreBridge<EngineType extends IDisposable, SnapshotType, CommandType> 상속 후 추상 메서드 3개만 구현:

@DomainBridge('<domain>')
@EnableEventLog()
export class FooBridge extends CoreBridge<FooEntity, FooSnapshot, FooCommand> {
  private tempQuaternion = new THREE.Quaternion();
  protected buildEngine(id: string, ...args: RuntimeValue[]): FooEntity | null { /* null 반환 = 등록 거부 */ }
  @ValidateCommand()
  protected executeCommand(entity: FooEntity, command: FooCommand, id: string): void { /* command.type별 switch */ }
  protected createSnapshot(entity: FooEntity, id: string): FooSnapshot | null { /* 아래 할당 규칙 필수 */ }
}
  • 스냅샷 할당 규칙: getCachedSnapshot(id)로 가져와 in-place 갱신(snapshot.position.set(...)), 없을 때만 생성 후 cacheSnapshot(id, s). createSnapshot은 프레임마다 불리므로 내부에서 new THREE.* 금지 — 임시 객체는 클래스 필드로 재사용(MotionBridge.tempQuaternion 참조).
  • System 인스턴스 생성 시 DI 주입: DIContainer.getInstance().injectProperties(system). buildEngine이 반환하는 엔티티는 dispose()를 반드시 포함.
  • 브리지가 앱 시작 시 필요하면 src/core/initializeBridges.ts에 import 한 줄 추가(등록만 — BridgeFactory가 lazy getOrCreate).
  • 사용 가능한 데코레이터: @DomainBridge(name), @EnableEventLog(), @ValidateCommand(), @LogSnapshot(), @Profile(), @HandleError(), @ManageRuntime({ autoStart }) (boilerplate/decorators).

Layer 3 소비 계약

const entity = useManagedEntity(bridge, id, rigidBodyRef, {
  onInit, onDispose, frameCallback, priority, throttle, skipWhenHidden, enabled, dependencies,
});

Read the full file on GitHub · 94 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago First seen · 94 lines · 66 tokens per session scan A 955f0acc5a11

Subscribe to this mod's changes

add-domain is a skill published in the GitHub repository jigglypop/gaesup-world (22 stars, last pushed 1mo ago), licensed MIT. It adds 66 tokens to every session and 1,413 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-06.

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