Data and databases: skills, plugins, subagents, slash commands and mcp servers

data-scientist VoltAgent Community subagent Subagent for exploratory data analysis, hypothesis testing, and building machine learning models directly in Claude Code. Claude Code 3,342installs database-optimizer VoltAgent Community subagent This subagent reviews slow queries, execution plans, and indexes. Use it when a database needs query, schema, or configuration tuning. Claude Code 3,320installs geofeed-tuner official Sid Mathur skill Validates and refines CSV IP geolocation feeds against RFC 8805 standards. Useful for network operators and cloud providers publishing geofeeds. GitHub Copilot 1,300installs data-engineer VoltAgent Community subagent Designs data pipelines, ETL/ELT workflows, and data infrastructure. Use it when a project needs pipeline orchestration, data quality checks, or processing cost analysis. Claude Code 3,194installs data-scientist Seth Hobson subagent This subagent explores datasets, tests statistical hypotheses, and builds predictive models. It can be added to Claude Code, Codex, or Cursor. Claude Code CX Codex Cursor 3,342installs cloud-architect VoltAgent Community subagent Designs, reviews, and optimizes multi-cloud infrastructure across AWS, Azure, and GCP while planning migrations and disaster recovery. Claude Code 3,067installs data-engineer Seth Hobson subagent A subagent for data pipelines, warehouses, and streaming architectures. Use it for Apache Spark, dbt, Airflow, and cloud data platform work. Claude Code CX Codex Cursor 3,194installs file-conversion Seth Hobson skill Converts local media, documents, and data formats using tools already installed on your machine. Prevents uploading files to third-party APIs. Claude Code CX Codex Cursor 3,100installs arize-dataset official arize skill This skill manages Arize datasets and examples through ax. Use it for test sets, evaluation examples, and dataset exports. GitHub Copilot 1,100installs arize-annotation official arize skill Creates annotation schemas and review queues in Arize, then updates span labels through the Python SDK. Use it for human review workflows. GitHub Copilot 1,100installs dataset-curation Seth Hobson skill This skill formats and checks datasets for model fine-tuning. Use it to prepare data for SFT or preference training before a run. Claude Code CX Codex Cursor 2,600installs database-admin Seth Hobson subagent This subagent helps plan, migrate, monitor, and operate cloud databases. Use it for architecture work, reliability tasks, and database operations. Claude Code CX Codex Cursor 2,185installs ml-engineer VoltAgent Community subagent An agent for building ML training pipelines, serving infrastructure, and automated retraining. It helps deploy production machine learning systems. Claude Code 1,971installs pm-skills Alireza Rezvani skill Routes project-delivery requests across 8 PM sub-skills for Jira, Confluence, sprints, reporting, and team communication. Useful for controlled delivery work. Claude Code 1,975installs quant-analyst VoltAgent Community subagent A subagent for quantitative trading strategies, financial models, and portfolio risk analysis. Use it for backtests, derivatives pricing, and statistical arbitrage. Claude Code 1,366installs quant-analyst Seth Hobson subagent Builds financial models, tests trading strategies against historical data, and calculates risk metrics. Built for algorithmic trading workflows. Claude Code CX Codex Cursor 1,366installs senior-backend Alireza Rezvani skill Scaffolds backend APIs, detects database bottlenecks, and runs load tests. Useful when designing Express routes, optimizing PostgreSQL, or preparing for production. Claude Code 1,674installs senior-architect Alireza Rezvani skill Generates architecture diagrams, checks coupling, and detects dependency cycles in codebases. Helps teams make technical decisions and document ADRs. Claude Code 1,494installs graphql-architect VoltAgent Community subagent Designs GraphQL schemas for microservices, federation, and distributed graphs. Use it when an API needs structured evolution or query analysis. Claude Code 1,038installs mlops-engineer Seth Hobson subagent Builds ML pipelines, configures experiment tracking, and automates model deployments across cloud platforms. Useful for teams standardizing ML infrastructure. Claude Code CX Codex Cursor 1,009installs nlp-engineer VoltAgent Community subagent Subagent for building text processing pipelines, fine-tuning models, and running production NLP tasks in Claude Code. Suited for NER, sentiment analysis, and translation. Claude Code 927installs postgres-pro VoltAgent Community subagent A PostgreSQL subagent for query tuning, replication design, backups, and database troubleshooting. Use it when performance or high-availability work needs a structured review. Claude Code 897installs data-analyst VoltAgent Community subagent Extracts business insights, designs dashboards, and conducts statistical analysis. Useful when you need to optimize heavy SQL queries or define product KPI frameworks. Claude Code 837installs senior-data-engineer Alireza Rezvani skill A skill for designing data pipelines, ETL/ELT systems and warehouses. Useful when you need to pick batch or streaming and lay out a data model. Claude Code 1,109installs financial-analyst Alireza Rezvani skill A Claude skill that runs financial ratio analysis, DCF valuation, budget variance checks and rolling forecasts from JSON data. Claude Code 1,060installs ux-researcher-designer Alireza Rezvani skill This skill helps turn user data into personas, journey maps, usability test plans, and design recommendations. Use it when research findings need a clear structure. Claude Code 962installs senior-data-scientist Alireza Rezvani skill Provides structured templates for A/B testing, feature pipelines, and machine learning validation. Designed for experiment analysis and tabular model workflows. Claude Code 942installs database-designer Alireza Rezvani skill Reviews database schemas, query indexes, and migration plans. Use it when you need to inspect a schema or prepare a change with an expand-contract plan. Claude Code 819installs research-analyst VoltAgent Community subagent Gathers data across the web and project files, synthesizes findings into structured reports, and extracts actionable insights for strategic decisions. Claude Code 575installs scrum-master Alireza Rezvani skill Analyzes Jira sprint exports, runs Monte Carlo velocity forecasts, and scores team health across six dimensions in Claude Code. Claude Code 817installs campaign-analytics Alireza Rezvani skill Analyzes marketing campaigns with multi-touch attribution, conversion funnels, and ROI metrics from JSON files. Claude Code 793installs mongodb-performance-advisor official github subagent Analyzes MongoDB queries across your codebase and audits database performance using a readonly MCP server. Identifies slow operations and optimizes aggregation pipelines. GitHub Copilot 223installs apify-integration-expert official github subagent Integrates Apify Actors into JavaScript and Python codebases. Finds suitable Actors, drafts client code, and validates run outputs. GitHub Copilot 222installs data-researcher VoltAgent Community subagent Gathers, verifies, and cleans raw data from web sources and local files. Ideal for preparing datasets before running statistical analysis or machine learning tasks. Claude Code 542installs sql-database-assistant Alireza Rezvani skill Write SQL, inspect database schemas, review query performance, and prepare migrations. Useful for everyday database work and ORM-backed projects. Claude Code 727installs revenue-operations Alireza Rezvani skill Analyzes SaaS pipeline health, forecast error with MAPE, and unit economics. Useful for weekly deal reviews and benchmarking go-to-market performance. Claude Code 726installs performance-profiler Alireza Rezvani skill This skill investigates CPU, memory, I/O, and database bottlenecks in Node.js, Python, and Go apps. Use it when tracking down a slow endpoint or rising memory use. Claude Code 720installs power-platform-architect official Tim Hanewich skill This skill turns business requirements, use cases, and meeting transcripts into a Power Platform solution architecture with component choices and Mermaid.js diagrams. GitHub Copilot 205installs analytics-tracking Alireza Rezvani skill Sets up and debugs GA4 and Google Tag Manager implementations. It structures event taxonomies and tracks conversions across web apps. Claude Code 717installs gcp-cloud-architect Alireza Rezvani skill Plans Google Cloud architectures, estimates costs, and generates infrastructure code. Use it when moving an app to GCP or choosing a deployment pattern. Claude Code 717installs