Guidelines
akash-network/node
Behavioral guidelines to reduce common LLM coding mistakes. An agent skill from akash-network/node.
레거시 시스템을 점진적으로 교체하는 Strangler Fig 패턴과 관련 마이그레이션 패턴의 상세 구현 가이드.
$ npx skills add revfactory/harness-100 --skill strangler-fig-patterns -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install revfactory/harness-100 strangler-fig-patterns --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .claude/skills && cp -r skills-src/ko/22-legacy-modernizer/.claude/skills/strangler-fig-patterns .claude/skills/strangler-fig-patterns && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "strangler-fig-patterns" agent skill from https://github.com/revfactory/harness-100/tree/main/ko/22-legacy-modernizer/.claude/skills/strangler-fig-patterns into .claude/skills/strangler-fig-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "strangler-fig-patterns", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/revfactory/harness-100/tree/main/ko/22-legacy-modernizer/.claude/skills/strangler-fig-patternsType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add revfactory/harness-100 --skill strangler-fig-patterns -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install revfactory/harness-100 strangler-fig-patterns --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .agents/skills && cp -r skills-src/ko/22-legacy-modernizer/.claude/skills/strangler-fig-patterns .agents/skills/strangler-fig-patterns && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "strangler-fig-patterns" agent skill from https://github.com/revfactory/harness-100/tree/main/ko/22-legacy-modernizer/.claude/skills/strangler-fig-patterns into .agents/skills/strangler-fig-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "strangler-fig-patterns", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add revfactory/harness-100 --skill strangler-fig-patterns -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install revfactory/harness-100 strangler-fig-patterns --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/ko/22-legacy-modernizer/.claude/skills/strangler-fig-patterns .cursor/skills/strangler-fig-patterns && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "strangler-fig-patterns" agent skill from https://github.com/revfactory/harness-100/tree/main/ko/22-legacy-modernizer/.claude/skills/strangler-fig-patterns into .cursor/skills/strangler-fig-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "strangler-fig-patterns", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/revfactory/harness-100.git --path ko/22-legacy-modernizer/.claude/skills/strangler-fig-patterns--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add revfactory/harness-100 --skill strangler-fig-patterns -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install revfactory/harness-100 strangler-fig-patterns --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/ko/22-legacy-modernizer/.claude/skills/strangler-fig-patterns .gemini/skills/strangler-fig-patterns && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "strangler-fig-patterns" agent skill from https://github.com/revfactory/harness-100/tree/main/ko/22-legacy-modernizer/.claude/skills/strangler-fig-patterns into .gemini/skills/strangler-fig-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "strangler-fig-patterns", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install revfactory/harness-100 strangler-fig-patternsInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add revfactory/harness-100 --skill strangler-fig-patterns -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .github/skills && cp -r skills-src/ko/22-legacy-modernizer/.claude/skills/strangler-fig-patterns .github/skills/strangler-fig-patterns && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "strangler-fig-patterns" agent skill from https://github.com/revfactory/harness-100/tree/main/ko/22-legacy-modernizer/.claude/skills/strangler-fig-patterns into .github/skills/strangler-fig-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "strangler-fig-patterns", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add revfactory/harness-100 --skill strangler-fig-patterns -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install revfactory/harness-100 strangler-fig-patterns --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/revfactory/harness-100.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/ko/22-legacy-modernizer/.claude/skills/strangler-fig-patterns .opencode/skills/strangler-fig-patterns && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "strangler-fig-patterns" agent skill from https://github.com/revfactory/harness-100/tree/main/ko/22-legacy-modernizer/.claude/skills/strangler-fig-patterns into .opencode/skills/strangler-fig-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "strangler-fig-patterns", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
strangler-fig-patterns레거시 시스템을 점진적으로 교체하는 Strangler Fig 패턴과 관련 마이그레이션 패턴의 상세 구현 가이드.
Strangler Fig Patterns is an agent skill from revfactory/harness-100. 레거시 시스템을 점진적으로 교체하는 Strangler Fig 패턴과 관련 마이그레이션 패턴의 상세 구현 가이드. 'strangler fig', '점진적 마이그레이션', '리팩토링 패턴', 'branch by abstraction', 'parallel run', '점진적 교체', '마이그레이션 패턴 선택' 등 레거시 전환 패턴 적용 시 이 스킬을 사용한다. refactoring-strategist와 migration-engineer의 패턴 선택·구현을 강화한다. 단, 전체 팀 오케스트레이션이나 프로젝트 관리는 이 스킬의 범위가 아니다.
Its SKILL.md is about 960 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Development, covering Refactoring. The licence is Apache-2.0.
5 steps, taken from the step headings in SKILL.md.
Read from SKILL.md and the folder at commit 8e8d35c. It shows what the files ask for, not the result of running them.
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
No scripts in the folder and no shell commands in SKILL.md (its code samples are python and yaml).
From the folder's file list and the shell code blocks in SKILL.md.
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Strangler Fig Patterns loads about 962 tokens when it runs. Until then it costs about 81 tokens; SKILL.md has 269 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
The full file from revfactory/harness-100 at commit 8e8d35c, republished under its Apache-2.0 licence (© revfactory). 269 words, ~962 tokens.
.claude/skills/strangler-fig-patterns/SKILL.md (or your agent's skills folder).레거시 시스템 교체를 위한 검증된 패턴들의 상세 구현 방법론.
적용 조건: 모놀리스에서 새 시스템으로 점진적 전환이 필요할 때
┌─────────────────────────────────────────────┐
│ 라우터/프록시 │
│ ┌──────────┐ ┌──────────────────────┐ │
│ │ 레거시 │ ←→ │ 새 시스템 │ │
│ │ (축소 중) │ │ (확장 중) │ │
│ └──────────┘ └──────────────────────┘ │
└─────────────────────────────────────────────┘구현 단계:
| 단계 | 작업 | 검증 기준 | 롤백 방법 |
|---|---|---|---|
| 1. 인터셉터 삽입 | 라우터/프록시 계층 추가 | 기존 트래픽 100% 레거시 경유 확인 | 인터셉터 제거 |
| 2. 기능 단위 추출 | 가장 독립적인 기능부터 새 서비스로 | 동일 입출력 검증 (Shadow Test) | 라우팅 복원 |
| 3. 트래픽 전환 | 카나리 → 점진적 비율 증가 | 에러율, 지연시간, 비즈니스 메트릭 | 비율 0% 복귀 |
| 4. 레거시 제거 | 이관 완료된 코드 삭제 | 전환 완료 100% 확인 | N/A |
추출 우선순위 매트릭스:
높은 비즈니스 가치
│
③ Quick │ ① 최우선
Wins │ 추출 대상
────────┼──────────→ 낮은 결합도
④ 후순위 │ ② 점진적
보류 │ 분리 후 추출
│
낮은 비즈니스 가치적용 조건: 내부 컴포넌트를 교체할 때 (같은 코드베이스 내)
# Step 1: 추상화 계층 삽입
class PaymentGateway(ABC):
@abstractmethod
def process(self, amount: Decimal) -> PaymentResult: ...
# Step 2: 레거시 구현 래핑
class LegacyPayment(PaymentGateway):
def process(self, amount):
return self.old_system.charge(amount)
# Step 3: 신규 구현
class ModernPayment(PaymentGateway):
def process(self, amount):
return self.stripe_client.create_charge(amount)
# Step 4: 피처 플래그로 전환
gateway = ModernPayment() if feature_flag('new_payment') else LegacyPayment()적용 조건: 교체 전에 신규 시스템의 정확성을 검증할 때
class Experiment:
def run(self, input_data):
control_result = self.legacy.execute(input_data)
try:
candidate_result = self.modern.execute(input_data)
if not self.compare(control_result, candidate_result):
self.report_mismatch(input_data, control_result, candidate_result)
except Exception as e:
self.report_error(input_data, e)
return control_result # 항상 레거시 결과 반환비교 전략:
| 비교 수준 | 방법 | 허용 범위 |
|---|---|---|
| 정확 일치 | == | 0% 차이 |
| 구조적 일치 | 스키마 비교 | 필드 존재/타입 일치 |
| 의미적 일치 | 비즈니스 규칙 기반 | 도메인별 허용 오차 |
| 통계적 일치 | 집계/분포 비교 | 99.9% 일치율 이상 |
적용 조건: 레거시와 신규 시스템이 공존해야 할 때 도메인 오염 방지
ACL 구성요소:
| 구성요소 | 역할 | 구현 |
|---|---|---|
| Translator | 도메인 모델 변환 | DTO ↔ Domain Object 매핑 |
| Adapter | 인터페이스 변환 | 레거시 API → 현대 인터페이스 |
| Facade | 복잡성 은닉 | 레거시 다중 호출 → 단일 메서드 |
toggles:
# Phase 1: 개발 팀만
new_user_service: { type: permission, users: ["dev-team"] }
# Phase 2: 카나리 (10%)
new_user_service: { type: gradual-rollout, percentage: 10, sticky: true }
# Phase 3: 전면 전환
new_user_service: { type: release, enabled: true }
# Phase 4: 토글 제거 (레거시 코드 삭제)레거시 교체가 필요한가?
├── 외부 시스템/서비스 교체 → Strangler Fig
├── 내부 컴포넌트 교체
│ ├── 교체 전 검증 필요 → Parallel Run + Branch by Abstraction
│ └── 교체 확신 있음 → Branch by Abstraction
├── 레거시-신규 공존 장기화 → Anti-Corruption Layer
└── 모든 경우 → Feature Toggle 병용 권장| 위험 신호 | 의미 | 대응 |
|---|---|---|
| 추출할 모듈이 10개 이상 의존 | 결합도 과다 | ACL 삽입 후 점진적 의존성 정리 |
| Parallel Run 불일치율 > 5% | 동작 차이 과다 | 비즈니스 규칙 재검증, 엣지 케이스 수집 |
| 토글 수 > 20개 동시 활성 | 토글 부채 | 정기 토글 청소 스프린트 도입 |
| 마이그레이션 6개월 이상 지속 | 병렬 운영 비용 증가 | 범위 축소 또는 부분 Big Bang 검토 |
© revfactory, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Just SKILL.md in ko/22-legacy-modernizer/.claude/skills/strangler-fig-patterns of revfactory/harness-100.
Open the folder on GitHubat commit 8e8d35c
Strangler Fig Patterns next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Strangler Fig Patterns this skillrevfactory/harness-100 | 1.3k | — | ~962 | Automated safety check: Pass | Apache-2.0 | |
| Guidelinesakash-network/node | 1.1k | 22 repos | ~577 | Automated safety check: Pass | MIT | |
| Component Refactoringlangflow-ai/langflow | 156k | — | ~3.5k | Automated safety check: Pass | MIT | |
| Migrate Core Code to Submodulestinyhumansai/openhuman | 41k | — | ~2.6k | Automated safety check: Pass | GPL-3.0 | |
| ast-grep Structural Searchcode-yeongyu/oh-my-openagent | 70k | — | ~3.3k | Automated safety check: Pass | MIT | |
| Systematic Code Refactoringluongnv89/claude-howto | 42k | — | ~3k | Automated safety check: Pass | MIT |
akash-network/node
Behavioral guidelines to reduce common LLM coding mistakes. An agent skill from akash-network/node.
langflow-ai/langflow
Refactor high-complexity React components in Langflow frontend.
tinyhumansai/openhuman
Plans and carries out moving non-host-specific code and its tests from the OpenHuman core into vendored tiny submodule libraries, then releases the submodule and re-pins the host.
code-yeongyu/oh-my-openagent
Searches and rewrites code by syntax-tree shape across 25 languages with ast-grep, for codemods, structural queries and YAML lint rules, using a Python wrapper script.
luongnv89/claude-howto
Guides refactoring in phases based on Martin Fowler's method: research, test coverage check, planning and small tested steps, with your approval at each phase.
skills-directory/skill-codex
A skill your agent uses when the user asks to run Codex CLI (codex exec, codex resume) or references OpenAI Codex for code analysis, refactoring, or automated editing
revfactory/harness-100
A skill for analyzing website anti-bot defense mechanisms and developing legitimate evasion strategies.
revfactory/harness-100
Reference for designing how an API reports failures: structured error codes, response shapes, client-friendly messages, an error catalog and retry or fallback advice.
revfactory/harness-100
Walks a backend-dev agent through OWASP API Top 10 checks, authentication and authorization patterns, and defense code during API design.
revfactory/harness-100
Methodology for systematically designing and generating CLI tool argument parser structures.
revfactory/harness-100
Audience segmentation skill used by the analyst and curator agents.
revfactory/harness-100
Audio storytelling skill used by the podcast scriptwriter and show note editor.
Categories
레거시 시스템을 점진적으로 교체하는 Strangler Fig 패턴과 관련 마이그레이션 패턴의 상세 구현 가이드. Strangler Fig Patterns is an agent skill from revfactory/harness-100. 레거시 시스템을 점진적으로 교체하는 Strangler Fig 패턴과 관련 마이그레이션 패턴의 상세 구현 가이드.
Strangler Fig Patterns fits situations like: tasks that involve Refactoring.
Run `npx skills add revfactory/harness-100 --skill strangler-fig-patterns -a claude-code`. Or copy the skill folder (ko/22-legacy-modernizer/.claude/skills/strangler-fig-patterns in revfactory/harness-100) into .claude/skills/strangler-fig-patterns in your project. Claude Code loads it when a task matches its description.
Run `npx skills add revfactory/harness-100 --skill strangler-fig-patterns -a codex`. Or copy the skill folder (ko/22-legacy-modernizer/.claude/skills/strangler-fig-patterns in revfactory/harness-100) into .agents/skills/strangler-fig-patterns in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add revfactory/harness-100 --skill strangler-fig-patterns -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/strangler-fig-patterns, .gemini/skills/strangler-fig-patterns, .github/skills/strangler-fig-patterns and .opencode/skills/strangler-fig-patterns in your project.
SKILL.md names no scripts, command-line tools or credentials: Strangler Fig Patterns is instructions for the agent only. Our summary lists: Python 3.
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
Strangler Fig Patterns is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 962 tokens (SKILL.md is roughly 3.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
Skills that share tags, products or a category with Strangler Fig Patterns: Guidelines (akash-network/node, 1.1k stars), Component Refactoring (langflow-ai/langflow, 156k stars), Migrate Core Code to Submodules (tinyhumansai/openhuman, 41k stars) and ast-grep Structural Search (code-yeongyu/oh-my-openagent, 70k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
revfactory (a GitHub user) maintains it in revfactory/harness-100, which has 1,290 GitHub stars. The repository holds 464 skills in this directory. The repository was last updated on March 22, 2026.
Source: revfactory/harness-100 on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.