Best data cleaning skills for Claude Code, Codex and other agents.

Creates, edits and analyzes spreadsheets (.xlsx, .xlsm, .csv, .tsv) with openpyxl and pandas, writing live formulas and recalculating to confirm zero formula errors.

anthropics/skills

Turn a natural-language financial question into a polished, self-contained HTML report.

refraction-ray/xalpha

Stream-JSON chaining for multi-agent pipelines, data transformation, and sequential workflows

ruvnet/agentic-flow

Guides an agent through reproducing papers built on the CHARLS health and retirement survey, from variable mapping to cognition, depression and isolation scores.

xjtulyc/MedgeClaw

A skill your agent uses when the user wants to fact-check an article or verify factual claims in a document.

MigoXLab/dingo

Validates data against common and custom rules (required fields, formats, ranges).

platonai/Browser4

Use truffler to find similar or pre-existing JavaScript/TypeScript symbols before implementing new code, especially helpers, utilities, parsers, formatters, scanners, fuzzy matchers, and other…

millionco/react-doctor

Implement a pnpm feature, bug fix, or refactor by checking existing capabilities, prioritizing code reuse and deduplication, assessing architecture impact, and validating the final change.

pnpm/pnpm

A skill your agent uses when the user wants to fact-check an article or verify factual claims in a document.

MigoXLab/dingo

Handles deduplication of YouTrack issues. An agent skill from JetBrains/ideavim.

JetBrains/ideavim

Builds, edits, cleans, recalculates and reads Excel workbooks and CSV files with openpyxl and pandas, plus LibreOffice for recalculation and PDF export.

XiaomiMiMo/MiMo-Code

Handles pandas DataFrame work: cleaning, merging, groupby aggregation, pivots, time-series resampling and memory tuning, with checks on dtypes, shapes and nulls.

Jeffallan/claude-skills

Fetch financial, market, economic, fundamental, news, options, crypto, ETF, index, and macro data through the OpenBB Python interface instead of the OpenBB MCP server.

monarchjuno/vibe-investing

Cleans raw credit data and screens variables before loan modeling, dropping unstable, noisy or redundant features and writing an Excel report of every step.

github/awesome-copilot

Design, add, review, or modify AIC Collector operations and their case population.

ai-dynamo/aiconfigurator

Investigates geocoder data quality issues by querying live S3 parquet files via MotherDuck MCP.

walkthru-earth/geocoding-playground

A skill your agent uses when writing or refactoring React + Tailwind v4 code in this repo.

mailtrap/mailtrap-local

Plan and execute Convex schema migrations safely, including adding fields, creating tables, and data transformations.

waynesutton/markdown-site

Design, build, or debug data processing pipelines. An agent skill from agulli/atlas-agents.

agulli/atlas-agents

SPD V1 Batch. An agent skill from flaqai/backlink_skills.

flaqai/backlink_skills

Workflow skill for evidence-based renewable energy market research, V4 full country wind-market status reports, source-to-final continuity, project pipeline verification, deduplication, product-fit…

liangdabiao/exa-research-mcp-skill

Clean and standardize messy tabular data (CSV, spreadsheet paste, system exports) into an analysis-ready dataset — consistent dates and names, typed columns, duplicates identified, missing values…

sgharlow/claude-code-recipes

GPU-accelerated data curation for LLM training. An agent skill from Orchestra-Research/AI-Research-SKILLs.

Orchestra-Research/AI-Research-SKILLs

Reviews, curates, and maintains the Forge library of agents, skills, and templates.

jdforsythe/forge

Loads, cleans, aggregates and joins tabular data with pandas under a verification rule: every number reported must be one that the code actually printed.

pipeshub-ai/pipeshub-ai

A skill your agent uses when you need to write and execute Python/R code to process, transform, and analyze data, delivering reproducible computational results with complete code-level methodology…

openJiuwen-ai/sciencediscovery

Audit an Odoo database's data quality with evidence before trusting AI answers, importing, or migrating — duplicates, missing required values, orphaned references, format anomalies — and drive…

erpipe-org/mcp-odoo

Finds authoritative public data sources for modeling tasks, prefers official APIs and bulk downloads, and outputs a reproducible fetch and cleaning plan with citations.

yushui2022/MathModel-Skill

Daily arXiv paper recommendations with automatic deduplication

Xiangyue-Zhang/auto-deep-researcher-24x7

Check memory system health and troubleshoot connectivity issues.

kbanc85/claudia

Perform data analysis tasks including data cleaning, statistical analysis, visualization, and insight generation.

xiaoyuge886/aigc

Finds duplicate and junk records in a CRM CSV export with fuzzy matching, normalizes fields and writes a reviewable merge plan plus import-ready files without touching the live CRM.

OneWave-AI/claude-skills

Methodology for market research and data collection, ensuring data quality and source traceability

chekusu/wanman

Sets up data quality checks with Great Expectations, dbt tests and data contracts, with checkpoints and pass-fail reports for pipelines.

wshobson/agents

A skill your agent uses when a clinical CSV/Excel dataset needs profiling and cleaning before analysis (missing values, outliers, duplicates, type mismatches).

Aperivue/medsci-skills

Run comprehensive quality checks on tabular data (CSV/Excel/TSV/JSON), detecting missing values, duplicates, outliers, format issues, and type inconsistencies to produce an overall score, grade, and…

zebbern/claude-code-guide

Cleans raw or scraped competition data and produces exploratory charts and a figure plan as one stage of a mathematical modeling paper workflow.

yushui2022/MathModel-Skill

Master dbt (data build tool) for analytics engineering with model organization, testing, documentation, and incremental strategies.

wshobson/agents

Data cleaning, entity matching, and deduplication skill for Claude Code and Codex: triage, standardize, and validate a CSV, Excel, or JSON list of B2B companies or contacts before enrichment.

explorium-ai/gtm-skills

Audit a local or remote tabular file (CSV/TSV) for common data quality issues — schema, nulls, types, duplicates.

datopian/portaljs

执行全面的异常值检测与数据质量评估，利用 IQR 方法识别异常值并结合偏度、峰度分析数据分布特征，适用于非正态分布数据的预处理阶段。

MichaelYang-lyx/AIDABench

A skill your agent uses when a broad paper candidate pool needs deterministic deduplication and a stable core set.

WILLOSCAR/research-units-pipeline-skills

Systematic dataset profiling protocol for empirical research.

aspi6246/Claude-Code-Skills-for-Academics

Validate data quality in market analysis documents and blog articles before publication.

tradermonty/claude-trading-skills

Excel 数据分析多步编排器。覆盖：(1) 读取多 Sheet Excel 文件并统计行数，(2) 大文件检测（≥10k 行自动 Parquet 优化），(3) 数据清洗（缺失值、文本标准化、无效字符），(4) 条件筛选与分类提取，(5) 跨 Sheet 统计聚合，(6) 导出 Excel/CSV 并提供下载链接。覆盖从数据读取到报告生成全流程，按步骤编排 capability 子…

MichaelYang-lyx/AIDABench

Validate alignment quality with insert size distribution, proper pairing rates, GC bias, strand balance, and other post-alignment metrics.

GPTomics/bioSkills

Aggregate and rank signals from multiple edge-finding skills (edge-candidate-agent, theme-detector, sector-analyst, institutional-flow-tracker) into a prioritized conviction dashboard with weighted…

tradermonty/claude-trading-skills

Finds usable public datasets, judges whether the data can support a research idea, and checks train and test splits for leakage before results are trusted.

Light0305/Light-skills