Best DataFrames skills for Claude Code, Codex and other agents.

A skill your agent uses when the user has tabular data (pandas DataFrame, parquet, csv, Arrow, json) and wants to filter, group, aggregate, join, or speed up slow pandas.

vemetric/vemetric

Integrate Polar billing in server-side Python applications using the versioned Polar and PolarAsync clients.

polarsource/polar

Integrate Polar billing in server-side TypeScript applications using the versioned createPolar and createPolarCore clients.

polarsource/polar

Analyzes CSV files, generates summary stats, and plots quick visualizations using Python and pandas.

coffeefuelbump/csv-data-summarizer-claude-skill

A skill your agent uses when the user wants to run SQL — especially analytical SQL — on local files (parquet/csv/json), URLs, S3 paths, or remote databases (Postgres, MySQL, MongoDB, ClickHouse…

vemetric/vemetric

Migrate a whole ArcGIS Hub site into a PortalJS Arc portal end-to-end.

datopian/portaljs

A skill your agent uses to produce standalone, publication-ready PNG graphics and reproducible matplotlib scripts from tabular data (CSVs or DataFrames).

EvoScientist/EvoSkills

Execute Python code in a safe sandboxed environment via [inference.sh](https://inference.sh).

cortega26/chile-hub

Best practices for polars data processing with dataframely. An agent skill from Quantco/dataframely.

Quantco/dataframely

Analyze event logs, clickstreams, user paths, product funnels, retention, behavioral segments, transition graphs, step matrices, sequence patterns, and customer journeys using Retentioneering.

retentioneering/retentioneering-tools

Convert any data file to another format: CSV, Parquet, JSON, Excel, GeoJSON, and more.

duckdb/duckdb-skills

Review changes to Polar's API contract — Pydantic schemas, FastAPI endpoints, OpenAPI output and the generated SDKs.

polarsource/polar

Agentforce session tracing extraction and analysis. An agent skill from Jaganpro/sf-skills.

Jaganpro/sf-skills

Review a diff that touches Polar's billing domain — subscriptions, cycles and crons, orders, billing entries, meters and usage, discounts, checkout, payments and dunning, refunds, disputes, payouts…

polarsource/polar

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

Queries the data warehouse with SQL and answers business questions about data.

astronomer/agents

Implement, migrate, review, or debug Panda CSS styles in the Bangumi frontend.

bangumi/frontend

Smart Excel/CSV file parsing with intelligent routing based on file complexity analysis.

Harryoung/efka

Use the daleui React design system with semantic Panda CSS tokens and accessible components.

DaleStudy/daleui

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

walkthru-earth/geocoding-playground

Check if upstream Apache DataFusion features (functions, DataFrame ops, SessionContext methods, FFI types) are exposed in this Python project.

apache/datafusion-python

Read any data file (CSV, JSON, Parquet, Avro, Excel, spatial, SQLite) or remote URL (S3, HTTPS).

duckdb/duckdb-skills

Salesforce Data Cloud product orchestrator for connect→prepare→harmonize→segment→act workflows.

Jaganpro/sf-skills

Analyse GC2/Centia Parquet snapshots with DuckDB by walking the STAC catalog.json in the snapshot store — find datasets, decide whether a dataset has geometry (and in which CRS), read one snapshot…

mapcentia/geocloud2

Open or update a draft GitHub pull request after Polar-specific review and cubic CLI review.

polarsource/polar

图片理解与数据提取 skill。当图片文件（.png/.jpg/.jpeg/.gif/.webp/.bmp）是主要输入且用户需要理解、提取数据或分析图片内容时使用。提供预配置的 caption 脚本（scripts/caption.py），通过 vision 模型将图片转为文本描述，无需额外配置 API Key。覆盖：(1) 通过 scripts/caption.py…

MichaelYang-lyx/AIDABench

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 the user is writing datafusion-python (Apache DataFusion Python bindings) DataFrame or SQL code.

apache/datafusion-python

Register zarr positions into the Computational Imaging Database on Airtable, write channelsmetadata/experimentmetadata to zarr .zattrs, or bulk-update Airtable records via MCP.

mehta-lab/VisCy

Works with datasets far too big to download or load in pandas — SQL over remote Parquet with DuckDB, aggregate-then-model, iterate on samples.

flyrank-bih/flyrank-ml-internship-starter

Uses Ray Data to read, transform and write large datasets across a cluster for ML training and batch inference, with streaming execution and optional GPU steps.

Orchestra-Research/AI-Research-SKILLs

Guides writing and tuning Apache Spark jobs: DataFrame and RDD code, Spark SQL, partitioning, caching, shuffle tuning and structured streaming.

Jeffallan/claude-skills

Modern Python coaching covering language foundations through advanced production patterns.

SpillwaveSolutions/agent-brain

Migrate a Polar seat-based integration from customerid to the member model.

polarsource/polar

Create a new mob (custom entity) for a Minecraft Bedrock Edition add-on from a plain description, or change an existing one, including its health, attacks, AI behavior, taming, riding, drops, and…

Mojang/minecraft-creator-tools

Enforce synchronization between Kedro node files and catalog YAML files in the OptimusKG project.

mims-harvard/OptimusKG

Processes tabular datasets too large for RAM with Vaex: lazy DataFrames, fast aggregations, big-data plots and ML pipelines over CSV, HDF5, Arrow and Parquet.

davila7/claude-code-templates

Ingest and transform data files (CSV/JSON/Parquet/Arrow IPC) into Elasticsearch with stream processing and custom transforms.

aspectrr/deer

Analyzes CSV, Parquet and JSON data with DuckDB, Polars, numpy and matplotlib, preferring a persistent kernel over repeated one-shot processes.

code-yeongyu/oh-my-openagent

Fast DataFrame library (Apache Arrow). An agent skill from davila7/claude-code-templates.

davila7/claude-code-templates

Send IM messages to users in batch. An agent skill from Harryoung/efka.

Harryoung/efka

Check a diff for code that reinvents something Polar already has — a kit helper, a shared Pydantic type, a repository method, an Orbit component, an existing model property.

polarsource/polar

Guide for using OptimusKG, the biomedical knowledge graph, through the optimuskg Python client.

mims-harvard/OptimusKG

Decision guide for testing in the ar-io-node repo — which test layer to use, how to run it, and which helpers to reach for.

ar-io/ar-io-node

Chunked N-D arrays for cloud storage. An agent skill from davila7/claude-code-templates.

davila7/claude-code-templates

Parallel/distributed computing. An agent skill from davila7/claude-code-templates.

davila7/claude-code-templates

Parse FCS (Flow Cytometry Standard) files v2.0-3.1. An agent skill from davila7/claude-code-templates.

davila7/claude-code-templates

Strip agent-generated noise from a diff — comments that restate the code, private helpers in test files, near-duplicate tests, tests with no assertions, unrequested indexes and validation, defensive…

polarsource/polar