Data & Analytics
Data agent skills make AI agents useful for data work: writing SQL, cleaning datasets, building pipelines, working with spreadsheets, and producing analyses. Each skill is a reviewed SKILL.md file that teaches the agent one workflow well, ready to install in seconds.
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netvar1337 Bundle R2jsExecute arbitrary radare2 commands and r2js scripts via r2xsql when SQL surfaces are insufficient. Use for custom analysis passes, ESIL emulation, anything r2's tables don't expose, or to bridge SQL queries with r2 SDK behavior.
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netvar1337 Bundle R2xsql ConnectConnect to radare2 sessions via r2xsql and bootstrap analysis. Use when starting a new SQL session, routing to other skills, or setting up CLI/HTTP/MCP connections.
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netvar1337 Bundle R2xsql FunctionsReference for the SQL helper functions and SQLite built-ins available in r2xsql queries — string utilities, hex/int coercion, regex. Use when looking up how to format addresses, search by pattern, or coerce between numeric/text columns.
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netvar1337 Bundle Router Reverse Skill Router Pentest ToolsActive penetration testing toolchain. Covers reconnaissance, port scanning, vulnerability scanning, web penetration, SQL injection, directory brute forcing, password cracking, and similar scenarios. Exposes 20+ security tools to the AI agent via MCP servers (pentestMCP / mcp-security-hub). Trigger keywords: penetration testing, port scanning, Nmap, vulnerability scanning, Nuclei, SQL injection, SQLMap, directory brute force, FFUF, password cracking, Hashcat, reconnaissance, subdomains, web pentest, ZAP, Burp.
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ur-grue Bundle Performance Report WriterWrites a structured monthly or quarterly YouTube channel performance report from raw analytics data, with metric summaries, trend observations, and specific next-step recommendations.
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ur-grue Bundle Publication Timing AdvisorRecommends the best day and time to publish a piece of content based on the content type, platform, and intended audience — without requiring access to live analytics data.
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tangledgroup Bundle Duckdb 1 5 2High-performance analytical SQL database with support for nested types, vectorized execution, and seamless integration with Python, R, Java, Node.js, and WebAssembly. Use when building data analytics applications, performing ad-hoc queries on CSV/Parquet/JSON files, working with DataFrames (pandas, Polars), or needing an embedded OLAP database without server infrastructure.
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tangledgroup Bundle Duckdb 1 5 3Complete toolkit for DuckDB 1.5.3, an in-process SQL OLAP database management system. Covers SQL queries, data import/export (CSV, JSON, Parquet), Python API (Relations, UDFs, DB-API), nested types, window functions, and extensions. Use when writing SQL queries against local files or embedded databases, performing analytical data processing in Python, ingesting data from CSV/JSON/Parquet, or building data pipelines with DuckDB.
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tangledgroup Bundle Pandas 3 0 3Complete toolkit for pandas 3.0.3 providing DataFrame and Series data structures, tabular data manipulation, groupby aggregations, merging/joining, reshaping, time series analysis, I/O for CSV/JSON/Parquet/Excel/SQL/Iceberg, PyArrow integration, Copy-on-Write semantics, and the new default string dtype. Use when building Python programs that require data wrangling, exploratory analysis, ETL pipelines, statistical summaries, or any workflow centered on labeled tabular data.
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tangledgroup Bundle Rqlite 9 4 0Comprehensive toolkit for rqlite 9.4, a lightweight distributed relational database built on SQLite with Raft consensus. Use when deploying fault-tolerant databases, building edge/IoT applications with SQL, creating globally distributed read-intensive systems, or needing simple high-availability without complex administration.
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tangledgroup Bundle Parquet 2 2 0Complete toolkit for Apache Parquet 2.2.0 columnar storage format covering physical and logical types, schema definition via Thrift (parquet.thrift), encodings (PLAIN, RLE, Dictionary, Delta Binary Packed, Delta Length Byte Array, Delta String, Byte Stream Split), compression codecs (SNAPPY, GZIP, ZSTD, LZ4_RAW, BROTLI), nested data with definition/repetition levels, bloom filters, page indexes, encryption, and file layout. Use when reading, writing, or optimizing Parquet files, designing columnar storage schemas, tuning compression and encoding strategies, or implementing Parquet readers/writers.
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tangledgroup Bundle Rqlite 10 0 1Comprehensive toolkit for rqlite 10.0.1, a lightweight distributed relational database built on SQLite with Raft consensus. Use when deploying fault-tolerant databases, building edge/IoT applications with SQL, creating distributed read-intensive systems, configuring CDC pipelines, or needing simple high-availability without complex administration.
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tangledgroup Bundle Sqlite 3 53 0Embedded SQL database providing ACID transactions, full-text search (FTS5), spatial indexing (R-Tree), JSON processing, virtual tables, and extensions. Use when building applications requiring embedded SQL databases, performing data analysis, implementing persistent storage, or working with SQLite features from basic CRUD to advanced queries.
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tangledgroup Bundle Openpyxl 3 1 3Complete toolkit for openpyxl 3.1.3 providing Excel xlsx/xlsm/xltx/xltm file creation, reading, writing, styling, charts, conditional formatting, data validation, tables, filters, and Pandas integration. Use when building Python programs that need to generate, modify, or read Microsoft Excel spreadsheets programmatically.
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tangledgroup Bundle Pyarrow 24 0 0Complete toolkit for PyArrow 24.0.0 providing columnar in-memory data structures, vectorized compute functions, Parquet/CSV/ORC/JSON file I/O, Pandas and NumPy zero-copy integration, IPC serialization, tabular datasets, and Arrow Flight RPC. Use when building Python data pipelines, converting between Pandas/NumPy/Arrow formats, reading or writing Parquet files, performing vectorized array computations, serializing data via IPC, or working with partitioned datasets.
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wufufu770 Skill Hunt SqliSQL 注入挖掘:布尔/时间盲注、报错、堆叠查询、NoSQL 注入,含 OOB 外带确认门禁。触发词:注入、SQLi、盲注、数据库报错。目标存在 DB 交互参数时使用。
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ur-grue Bundle PDF Table Extractor BriefProduces a structured extraction plan and clean spreadsheet template for pulling tabular data out of a PDF document — identifying the table structure, defining column headers, flagging extraction pitfalls, and providing a ready-to-use template that ensures the data lands in a consistent, analysable format.
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ntizar Skill Postgres MCPPostgreSQL MCP Pro — expone PostgreSQL como servidor MCP para que agentes de IA realicen health checks, tuning de índices, exploración de esquema y ejecución segura de SQL.
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ntizar Bundle Node Backend PatternsPatrones completos para aplicaciones backend en Node.js — autenticación con sesiones, SQLite/sql.js, ESM/CommonJS interop, migración a fullstack.
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ntizar Skill Reearth FlowReearth Flow — plataforma ETL geoespacial web (motor Rust DAG + servidor Go GraphQL + UI ReactFlow) con 167 acciones tipo FME para CityGML/3D Tiles/GeoJSON.
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ntizar Skill Ineapy Ine EspanaLibrería Python para acceder a datos del INE (Instituto Nacional de Estadística) de España. Dos interfaces: INEWrapper (bajo nivel, HTTP directo) y INEConsultor (alto nivel, DataFrame-ready). API oficial: https://servicios.ine.es/wstempus/js/{lang}/{funcion}/{input} Repo: https://github.com/Angel-RC/ineapy
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marielynneblock Bundle PolarsFast in-memory DataFrame library for datasets that fit in RAM. Use when pandas is too slow but data still fits in memory. Lazy evaluation, parallel execution, Apache Arrow backend. Best for 1-100GB datasets, ETL pipelines, faster pandas replacement. For larger-than-RAM data use dask or vaex.
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marielynneblock Bundle SeabornStatistical visualisation with pandas integration. Use for quick exploration of distributions, relationships, and categorical comparisons with attractive defaults. Best for box plots, violin plots, pair plots, heatmaps. Built on matplotlib. For interactive plots use plotly; for publication styling use scientific-visualisation.
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marielynneblock Bundle Timesfm ForecastingZero-shot time series forecasting with Google's TimesFM foundation model. Use for any univariate time series (sales, sensors, energy, vitals, weather) without training a custom model. Supports CSV/DataFrame/array inputs with point forecasts and prediction intervals. Includes a preflight system checker script to verify RAM/GPU before first use.
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marielynneblock Skill SQL Code ReviewUniversal SQL code review assistant that performs comprehensive security, maintainability, and code quality analysis across all SQL databases (MySQL, PostgreSQL, SQL Server, Oracle). Focuses on SQL injection prevention, access control, code standards, and anti-pattern detection. Complements SQL optimisation prompt for complete development coverage.
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marielynneblock Skill SQL OptimisationUniversal SQL performance optimisation assistant for comprehensive query tuning, indexing strategies, and database performance analysis across all SQL databases (MySQL, PostgreSQL, SQL Server, Oracle). Provides execution plan analysis, pagination optimisation, batch operations, and performance monitoring guidance.
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marielynneblock Bundle Benchling IntegrationBenchling R&D platform integration. Access registry (DNA, proteins), inventory, ELN entries, workflows via API, build Benchling Apps, query Data Warehouse, for lab data management automation.
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marielynneblock Skill Pandas Data Wrangling[TODO] Define the specific workflow this skill standardises, including default libraries, quality checks, and expected deliverables.
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marielynneblock Bundle Clinical Decision SupportGenerate professional clinical decision support (CDS) documents for pharmaceutical and clinical research settings, including patient cohort analyses (biomarker-stratified with outcomes) and treatment recommendation reports (evidence-based guidelines with decision algorithms). Supports GRADE evidence grading, statistical analysis (hazard ratios, survival curves, waterfall plots), biomarker integration, and regulatory compliance. Outputs publication-ready LaTeX/PDF format optimised for drug development, clinical research, and evidence synthesis.
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event4u-app Bundle EloquentUse when writing Eloquent models, relationships, scopes, or queries via Model:: — 'fetch users with their orders'. NOT for PHPStan output, non-Eloquent services, or raw SQL questions.
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event4u-app Bundle MarkitdownConvert PDF, DOCX, XLSX, PPTX, EPUB, images, or audio to Markdown via the markitdown-mcp server — 'extract this PDF', 'OCR this image', 'transcribe this audio'.
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event4u-app Skill SQL WritingUse when writing raw SQL — MariaDB/MySQL syntax, parameterization, raw migrations, seeders with `DB::statement`; fires even on a pasted query asking 'why is this slow'.
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tangledgroup Bundle Sqlalchemy 2 0 49Complete SQLAlchemy 2.0 toolkit for database operations, ORM mapping, and SQL expression construction. Use when building Python applications that require database connectivity, object-relational mapping, or programmatic SQL generation with support for PostgreSQL, MySQL, SQLite, Oracle, and MSSQL.
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tangledgroup Bundle Jq 1 8 2jq 1.8.2 — lightweight command-line JSON processor. Use when the user needs to parse, query, transform, or manipulate JSON data from the command line, process API responses, extract fields from JSON, convert between formats (JSON-to-CSV, JSON-to-XML), validate JSON, or work with any structured data in JSON format. Covers filters, builtins, regex, modules, streaming, and all jq 1.8.2 features.
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tangledgroup Bundle Formulas 1 3 4Evaluate Excel formulas in Python without Excel. Use when the user needs to compute spreadsheet formulas, calculate xlsx files, convert formula-based spreadsheets to calculated values, export Excel to CSV/JSON, run batch scenarios, build JSON models from workbooks, or serve spreadsheets as a Flask API. Also triggers on mentions of formulas package, openpyxl calculation, or spreadsheet automation.
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tangledgroup Bundle Sqlalchemy 2 0 51SQLAlchemy 2.0 ORM and Core toolkit for Python database access. Use this skill whenever the user mentions SQLAlchemy, ORM models, database queries, engine creation, session management, declarative mappings, relationships (one-to-many, many-to-many), connection pooling, async database access, SQL expression construction, or any Python database abstraction task. Covers both Core (expression language) and ORM layers. Supports PostgreSQL, MySQL/MariaDB, SQLite, Oracle, Microsoft SQL Server, and third-party dialects (CockroachDB, IBM DB2, Firebird, SAP HANA, etc.).
Frequently asked questions
What are Data & Analytics agent skills?
Data agent skills make AI agents useful for data work: writing SQL, cleaning datasets, building pipelines, working with spreadsheets, and producing analyses. Each skill is a reviewed SKILL.md file that teaches the agent one workflow well, ready to install in seconds.
Which Data & Analytics skills are most installed?
Popular Data & Analytics skills on SkillMD right now include performance-report-writer, node-backend-patterns, sql-writing. Rankings shift as installs change; sort this page by "Most installs" for the live list.
Do Data & Analytics skills work with Claude Code and Cursor?
Yes. Every skill here ships as a SKILL.md file, an open format that works in Claude Code, Claude.ai, Cursor, Codex, Windsurf, and 60+ other agents. Install one with npx skillmds@latest add <owner>/<name>, or copy the file into your agent's skills directory.