data-explorer

data-explorer is a skill for Claude Code from modu-ai/moai-cowork. It costs 97 tokens per session (887 once invoked), scanned A, original, Apache-2.0.

A profiling and quality check for CSV or Excel files that summarizes columns, missing data, unusual values, duplicates, data types, and relationships between numbers.

In plain words
What is it for?
Use it to inspect a dataset before analysis, find missing or extreme values, check duplicates, understand distributions, and identify strong correlations.
Why use it?
It turns a raw spreadsheet into a report that shows what the data contains and where it may be incomplete, inconsistent, or suspicious.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the moai-analyst plugin — 9 skills, 2 agents shipped together

Good fit Use it to inspect a dataset before analysis, find missing or extreme values, check duplicates, understand distributions, and identify strong correlations.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/modu-ai/moai-cowork/data-explorer
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add modu-ai/moai-cowork --skill data-explorer
Clone the repo
git clone --depth 1 https://github.com/modu-ai/moai-cowork

Made for: Claude Code.

Or install moai-analyst, the plugin that ships this one along with the rest of its 9 skills, 2 agents.

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 data-explorer

README.md
[![agentmods](https://agentmods.dev/badge/skills/modu-ai/moai-cowork/data-explorer/github.svg)](https://agentmods.dev/skills/modu-ai/moai-cowork/data-explorer)
Your own site
<a href="https://agentmods.dev/skills/modu-ai/moai-cowork/data-explorer"><img src="https://agentmods.dev/badge/skills/modu-ai/moai-cowork/data-explorer/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 data-explorer

Your own site · 80×15
<a href="https://agentmods.dev/skills/modu-ai/moai-cowork/data-explorer"><img src="https://agentmods.dev/badge/skills/modu-ai/moai-cowork/data-explorer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 97 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 887 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 $0.00097 $0.00887
Opus 5.5 $0.00039 $0.00355
Sonnet 5.5 $0.00019 $0.00177
Haiku 4.5 $0.00010 $0.00089

Measured 17d ago against content hash 068e13986984, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

data-explorer 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 17d 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.

plugins/moai-analyst/skills/data-explorer/SKILL.md · 67 lines

What it actually says

데이터 탐색기 (Data Explorer)

역할

CSV/Excel 파일을 받아 데이터 프로파일링, 품질 검사, 기초 분석을 수행하는 전문가.

워크플로우

Step 1: 데이터 로딩

  • 파일 형식 감지 (CSV, XLSX, TSV)
  • CSV는 UTF-8·CP949·EUC-KR 등 후보로 읽어 헤더와 샘플 행을 확인한다. 깨진 글자나 대체 문자가 나오면 인코딩을 확정하지 않고 사용자에게 원본 형식을 확인한다.
  • 행/열 수, 데이터 타입 추론

Step 2: 프로파일링

  • 각 컬럼별: 타입, 유니크 수, 결측률, 최소/최대/평균/중앙값
  • 범주형 컬럼: 상위 5개 빈도
  • 수치형 컬럼: 분포 요약 (왜도, 첨도)

Step 3: 품질 검사

  • 결측값 수와 열·집단별 패턴을 표시한다. 관측된 표만으로 MCAR·MAR·MNAR 원인을 확정하지 않고, 수집 과정 정보가 있으면 가설로 분리한다.
  • 이상값 탐지 (IQR 방법, Z-score)
  • 중복 행 식별
  • 데이터 타입 불일치

Step 4: 상관관계 분석

  • 수치 컬럼 간 피어슨/스피어만 상관계수
  • 높은 상관(|r| > 0.7) 하이라이트
  • 범주-수치 간 관계는 표본 크기와 분포를 먼저 확인해 기술 통계로 제시한다. 검정은 사용자가 요청하고 가정을 검토한 경우에만 수행한다.

Step 5: 인사이트 + 분석 방향 제안

  • 핵심 발견 3가지 요약
  • 분석 방향 3가지를 제안하고, 사용자가 후속 분석을 고를 수 있게 현재 앱의 질문 기능 또는 대화로 묻는다.

산출물

  • 데이터 프로파일 보고서 (마크다운)
  • 결측·중복·형식 불일치와 검사 범위를 담은 품질 보고서. 점수는 사용자가 평가 기준과 가중치를 제공한 경우에만 계산
  • 분석 방향 추천

도구 사용

  • 현재 앱에서 실제로 제공하는 파일 읽기·표 계산·코드 실행 기능을 확인한다. CSV는 사용 가능한 기본 기능으로 읽고, XLSX는 현재 앱에 파서가 있을 때만 분석한다.
  • pandas가 이미 설치돼 있으면 사용할 수 있다. 설치·코드 실행이 불가능하면 읽을 수 있는 자료 범위만 분석하고 결측·중복·상관계수 등을 계산했다고 말하지 않는다.
  • 시각화가 필요하면 moai-analyst:data-visualizer로 연결한다.

이 스킬을 사용하지 말아야 할 때

  • 차트/그래프 생성 → moai-analyst:data-visualizer 사용
  • 공공데이터 조회 → moai-analyst:data-public 사용
  • PPT/Word 변환 → moai-officer가 설치돼 있으면 문서 스킬 연결

References

파일 로드 조건
references/data-explorer/guide.md CSV 인코딩 후보 대조(UTF-8/CP949/EUC-KR), IQR·Z-score 이상값 탐지 기준이 필요할 때
Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 17d ago Changed · +1 lines 068e13986984
  2. 28d ago Changed 5b8c93538329
  3. 1mo ago First seen · 66 lines · 97 tokens per session scan A df394703b741

Subscribe to this mod's changes

data-explorer is a skill published in the GitHub repository modu-ai/moai-cowork (311 stars, last pushed 15d ago), licensed Apache-2.0. It adds 97 tokens to every session and 887 once invoked, about $0.0004 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 2026-08-30.