Golang Patterns
affaan-m/ECC
Go-specific design patterns and best practices including functional options, small interfaces, dependency injection, concurrency patterns, error handling, and package organization.
오답 패턴을 체계적으로 분류하고 개념 결손 지도를 구성하는 전문 스킬. An agent skill from revfactory/harness-100.
Apache-2.0Auto-check passed
Install Error Pattern Analyzer
$ npx skills add revfactory/harness-100 --skill error-pattern-analyzer -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install revfactory/harness-100 error-pattern-analyzer --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/57-exam-prep/.claude/skills/error-pattern-analyzer .claude/skills/error-pattern-analyzer && 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 "error-pattern-analyzer" agent skill from https://github.com/revfactory/harness-100/tree/main/ko/57-exam-prep/.claude/skills/error-pattern-analyzer into .claude/skills/error-pattern-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "error-pattern-analyzer", 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/57-exam-prep/.claude/skills/error-pattern-analyzerType 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 error-pattern-analyzer -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install revfactory/harness-100 error-pattern-analyzer --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/57-exam-prep/.claude/skills/error-pattern-analyzer .agents/skills/error-pattern-analyzer && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "error-pattern-analyzer" agent skill from https://github.com/revfactory/harness-100/tree/main/ko/57-exam-prep/.claude/skills/error-pattern-analyzer into .agents/skills/error-pattern-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "error-pattern-analyzer", 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 error-pattern-analyzer -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install revfactory/harness-100 error-pattern-analyzer --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/57-exam-prep/.claude/skills/error-pattern-analyzer .cursor/skills/error-pattern-analyzer && 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 "error-pattern-analyzer" agent skill from https://github.com/revfactory/harness-100/tree/main/ko/57-exam-prep/.claude/skills/error-pattern-analyzer into .cursor/skills/error-pattern-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "error-pattern-analyzer", 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/57-exam-prep/.claude/skills/error-pattern-analyzer--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 error-pattern-analyzer -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install revfactory/harness-100 error-pattern-analyzer --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/57-exam-prep/.claude/skills/error-pattern-analyzer .gemini/skills/error-pattern-analyzer && 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 "error-pattern-analyzer" agent skill from https://github.com/revfactory/harness-100/tree/main/ko/57-exam-prep/.claude/skills/error-pattern-analyzer into .gemini/skills/error-pattern-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "error-pattern-analyzer", 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 error-pattern-analyzerInstalls 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 error-pattern-analyzer -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/57-exam-prep/.claude/skills/error-pattern-analyzer .github/skills/error-pattern-analyzer && 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 "error-pattern-analyzer" agent skill from https://github.com/revfactory/harness-100/tree/main/ko/57-exam-prep/.claude/skills/error-pattern-analyzer into .github/skills/error-pattern-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "error-pattern-analyzer", 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 error-pattern-analyzer -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 error-pattern-analyzer --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/57-exam-prep/.claude/skills/error-pattern-analyzer .opencode/skills/error-pattern-analyzer && 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 "error-pattern-analyzer" agent skill from https://github.com/revfactory/harness-100/tree/main/ko/57-exam-prep/.claude/skills/error-pattern-analyzer into .opencode/skills/error-pattern-analyzer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "error-pattern-analyzer", 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.
Facts
- Skill name
error-pattern-analyzer- GitHub stars
- 1.3k
- Token cost
- ~590 tokens
- SKILL.md length
- 252 words
- Files
- 1
- Skills in repo
- 464
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
오답 패턴을 체계적으로 분류하고 개념 결손 지도를 구성하는 전문 스킬. An agent skill from revfactory/harness-100.
- SKILL.md covers 적용 대상 에이전트, 오답 원인 5-Type 분류 체계, 오답 분석 보고서 템플릿 and 개념 결손 추적 매트릭스, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Error Pattern Analyzer is an agent skill from revfactory/harness-100. 오답 패턴을 체계적으로 분류하고 개념 결손 지도를 구성하는 전문 스킬. error-analyst와 diagnostician 에이전트가 학습자의 오답 데이터를 분석하여 근본 원인을 진단하고 맞춤형 보완 전략을 수립할 때 활용한다. '오답 패턴', '틀린 이유 분석', '개념 결손', '취약점 분석', '오류 유형' 등의 맥락에서 자동 적용한다. 단, 심리 검사나 학습 장애 진단은 이 스킬의 범위가 아니다.
Its SKILL.md is about 590 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
The licence is Apache-2.0.
Example prompts
- “/error-pattern-analyzer”
What it can do on your machine
Read from SKILL.md and the folder at commit 8e8d35c. It shows what the files ask for, not the result of running them.
Tool permissions
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.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Error Pattern Analyzer loads about 590 tokens when it runs. Until then it costs about 63 tokens; SKILL.md has 252 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.
Safety
Auto-check passed
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.
SKILL.md
The full file from revfactory/harness-100 at commit 8e8d35c, republished under its Apache-2.0 licence (© revfactory). 252 words, ~590 tokens.
Download SKILL.mdSave it as
.claude/skills/error-pattern-analyzer/SKILL.md (or your agent's skills folder).- name
- error-pattern-analyzer
- description
- 오답 패턴을 체계적으로 분류하고 개념 결손 지도를 구성하는 전문 스킬. error-analyst와 diagnostician 에이전트가 학습자의 오답 데이터를 분석하여 근본 원인을 진단하고 맞춤형 보완 전략을 수립할 때 활용한다. '오답 패턴', '틀린 이유 분석', '개념 결손', '취약점 분석', '오류 유형' 등의 맥락에서 자동 적용한다. 단, 심리 검사나 학습 장애 진단은 이 스킬의 범위가 아니다.
Error Pattern Analyzer — 오답 패턴 분석 도구
error-analyst, diagnostician 에이전트의 오답 분석 역량을 강화하는 전문 스킬.
적용 대상 에이전트
- error-analyst — 오답 패턴 분류, 보완 전략 수립
- diagnostician — 취약점 식별, 개념 결손 진단
오답 원인 5-Type 분류 체계
Type 1: 개념 결손 (Conceptual Gap)
정의: 핵심 개념을 이해하지 못하거나 잘못 이해 신호: 같은 개념 관련 문항에서 반복 오답 처방: 개념 재학습 → 다양한 예시 → 자기 설명
예시: 정규화(Normalization) 문제를 모두 틀림
→ 함수 종속성 개념 자체가 부정확
→ 처방: 함수 종속성 개념 재학습 + 단계별 정규화 실습Type 2: 절차 오류 (Procedural Error)
정의: 개념은 이해하나 적용 절차에서 실수 신호: 풀이 과정 중 특정 단계에서 오류 발생 처방: 단계별 체크리스트 + 반복 연습
예시: SQL JOIN 개념은 이해하나 다중 JOIN 시 결과 오류
→ JOIN 순서와 조건 적용 절차 오류
→ 처방: 단계별 JOIN 워크시트 + 점진적 복잡도 증가Type 3: 부주의 오류 (Careless Mistake)
정의: 이해하고 있으나 실수로 틀림 신호: 동일 유형에서 맞았다 틀렸다 반복, 시간 부족 시 증가 처방: 검산 습관 + 시간 관리 훈련
Type 4: 함정 오류 (Trap Error)
정의: 출제자가 의도한 오류 유발 장치에 빠짐 신호: 매력적 오답에 반복적으로 빠짐 처방: 함정 유형 패턴 학습 + "왜 이것이 답이 아닌가" 훈련
Type 5: 지식 부재 (Knowledge Gap)
정의: 해당 영역을 아예 학습하지 않음 신호: 특정 주제에서 찍기 수준의 정답률 (25%) 처방: 해당 영역 신규 학습 필요
오답 분석 보고서 템플릿
### 오답 분석 결과
#### 1. 오답 유형 분포
| 오류 유형 | 건수 | 비율 | 심각도 |
|----------|------|------|-------|
| 개념 결손 | 8 | 32% | 높음 |
| 절차 오류 | 5 | 20% | 중간 |
| 부주의 | 4 | 16% | 낮음 |
| 함정 | 5 | 20% | 중간 |
| 지식 부재 | 3 | 12% | 높음 |
#### 2. 개념 결손 맵
[개념 A] ← 선수 개념
↓
[개념 B] ← 결손 발견 ★
↓
[개념 C] ← 학습 불가 (B 선행 필요)
#### 3. 우선 보완 순서
1순위: 개념 B 재학습 (후속 개념 C에 영향)
2순위: 지식 부재 영역 신규 학습
3순위: 함정 패턴 인식 훈련개념 결손 추적 매트릭스
선수 학습 의존성 그래프
개념 간 의존 관계를 추적하여, 근본 결손을 찾는다:
만약 학습자가 "트리 순회"를 틀렸다면:
→ "재귀 함수" 이해 여부 확인
→ "스택" 이해 여부 확인
→ "함수 호출 구조" 이해 여부 확인
가장 하위의 결손 개념 = 근본 원인보완 학습 우선순위 결정
우선순위 = 결손 심각도 × 영향 범위 × 출제 빈도
결손 심각도: 완전결손(3), 부분결손(2), 불안정(1)
영향 범위: 후속 개념 수 (많을수록 높음)
출제 빈도: 최근 3년 출제 비중시험 유형별 오답 패턴 특성
| 시험 유형 | 주요 오답 패턴 | 핵심 대응 |
|---|---|---|
| 자격증 필기 | 유사 개념 혼동, 암기 누락 | 비교표, 플래시카드 |
| 자격증 실기 | 절차 오류, 시간 초과 | 실전 연습, 타임어택 |
| 수능 | 함정 오류, 시간 배분 | 함정 패턴 훈련, 시간 전략 |
| 공무원 | 세부 사항 혼동, 법조문 암기 | 키워드 암기법, 기출 반복 |
| 토익 | 듣기 집중력, 어휘 혼동 | 쉐도잉, 유사 어휘 정리 |
© 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
Files
Just SKILL.md in ko/57-exam-prep/.claude/skills/error-pattern-analyzer of revfactory/harness-100.
Open the folder on GitHubat commit 8e8d35c
Compare with similar skills
Error Pattern Analyzer 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 |
|---|---|---|---|---|---|---|
| Error Pattern Analyzer this skillrevfactory/harness-100 | 1.3k | — | ~590 | Automated safety check: Pass | Apache-2.0 | |
| Golang Patternsaffaan-m/ECC | 274k | — | ~1.1k | Automated safety check: Pass | MIT | |
| Analyzing Cloud Storage Access Patternsmukul975/Anthropic-Cybersecurity-Skills | 34k | — | ~599 | Automated safety check: Pass | Apache-2.0 | |
| Kotlin Exposed Patternsaffaan-m/ECC | 274k | 4 repos | ~5.5k | Automated safety check: Pass | MIT | |
| Dotnet Patternsaffaan-m/ECC | 274k | 1 repos | ~2.3k | Automated safety check: Pass | MIT | |
| Fastapi Patternsaffaan-m/ECC | 274k | — | ~2.3k | Automated safety check: Pass | MIT |
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Questions about Error Pattern Analyzer
What does Error Pattern Analyzer do?
오답 패턴을 체계적으로 분류하고 개념 결손 지도를 구성하는 전문 스킬. An agent skill from revfactory/harness-100. Error Pattern Analyzer is an agent skill from revfactory/harness-100. 오답 패턴을 체계적으로 분류하고 개념 결손 지도를 구성하는 전문 스킬.
How do I install Error Pattern Analyzer in Claude Code?
Run `npx skills add revfactory/harness-100 --skill error-pattern-analyzer -a claude-code`. Or copy the skill folder (ko/57-exam-prep/.claude/skills/error-pattern-analyzer in revfactory/harness-100) into .claude/skills/error-pattern-analyzer in your project. Claude Code loads it when a task matches its description.
How do I install Error Pattern Analyzer in Codex?
Run `npx skills add revfactory/harness-100 --skill error-pattern-analyzer -a codex`. Or copy the skill folder (ko/57-exam-prep/.claude/skills/error-pattern-analyzer in revfactory/harness-100) into .agents/skills/error-pattern-analyzer in your project. Codex loads it when a task matches its description.
Can I use Error Pattern Analyzer in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add revfactory/harness-100 --skill error-pattern-analyzer -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/error-pattern-analyzer, .gemini/skills/error-pattern-analyzer, .github/skills/error-pattern-analyzer and .opencode/skills/error-pattern-analyzer in your project.
What does Error Pattern Analyzer need to run?
SKILL.md names no scripts, command-line tools or credentials: Error Pattern Analyzer is instructions for the agent only.
Does Error Pattern Analyzer access the network?
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.
Is Error Pattern Analyzer safe to install?
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.
What licence does Error Pattern Analyzer use?
Error Pattern Analyzer 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.
How many tokens does Error Pattern Analyzer use?
About 590 tokens (SKILL.md is roughly 2.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Error Pattern Analyzer?
Skills that share tags, products or a category with Error Pattern Analyzer: Golang Patterns (affaan-m/ECC, 274k stars), Analyzing Cloud Storage Access Patterns (mukul975/Anthropic-Cybersecurity-Skills, 34k stars), Kotlin Exposed Patterns (affaan-m/ECC, 274k stars) and Dotnet Patterns (affaan-m/ECC, 274k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Error Pattern Analyzer?
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.