Best Data & Database Skills for Claude Code

Catches dangerous database migrations before they hit production. Reviews schema changes for locking hazards, data loss, missing rollbacks, and index issues across PostgreSQL, MySQL, and SQLite.

Turn plain English app descriptions into fully normalized SQL schemas and entity relationship documentation.

Automate data profiling with type detection, statistical analysis, and quality flags saved to a Markdown report.

Sql Query Clinic

by Edric Vale

Free

Diagnose slow or broken SQL: explain plans, index advice, rewrites, and correctness checks.

A high-performance scraping engine with Playwright stealth, proxy rotation, and anti-bot bypass capabilities.

Automatically transform JSON files or raw strings into production-ready TypeScript interfaces or Python dataclasses.

Expert Oracle PL/SQL architect for writing, refactoring, and performance-tuning enterprise database logic.

DB type routing, selection decision tree, relational/NoSQL design, performance optimization, 2026 trends.

Production-safe database migrations with zero-downtime strategies, batch backfilling, and multi-ORM support.

🧪 dbt Test & Quality Auditor

by JustHandled Labs

$15

Audit local dbt SQL and YAML for missing model tests, source freshness and test gaps, likely-key coverage, missing model descriptions, SELECT *, and raw table references. Get severity-ranked findings plus starter tests YAML for model/key gaps without running dbt or querying a warehouse.

nex scraper politeness pattern

by Nex AI

Free

Generates a polite async Python fetch layer with per-domain delays, robots.txt checks, retry backoff, and a generic-mailbox email extractor.

Data analysis engine with 4D decision matrix, 15-min quick analysis template, statistics reference, A/B testing playbook, user behavior analysis, SQL templates.

SQL Report Builder for Non Technical Managers

by Shandra

$50

Turns plain-English business questions into safe read-only SQL reporting plans, required table/field maps, readable SQL drafts, validation checks, and manager-friendly summaries.

A safe, expert-level database troubleshooter for fixing migrations, performance issues, and schema drift.

🛡️ Supabase RLS Doctor

by JustHandled Labs

$19

Audit local Supabase SQL, migrations, policies, storage rules, and client code for RLS gaps, broad policies, service-role leakage, overbroad grants, and tenant-isolation mistakes. Get severity-ranked evidence, proposed fixes, and verification steps without connecting to or changing the live project.

nex kbo prospect pipeline

by Nex AI

Free

Automated Belgian KBO register importer and polite website email enricher for B2B lead generation.

🗄️ SQL Migration Safety Doctor

by JustHandled Labs

$12

Catch the dangerous migration before it locks or wrecks your production database. Scans SQL migration files for destructive and risky operations: DROP and TRUNCATE, drops without IF EXISTS, lossy column-type changes, NOT NULL added without a default, DELETE or UPDATE with no WHERE, non-concurrent index builds, dropped constraints, renames, and data backfills mixed into schema changes. Each finding is ranked by severity with a safer rewrite. Postgres, MySQL, and SQLite.

Redis Cache Architect

by StrategistKit

$8.99

Redis caching design for a slow database or a slow app - cacheability assessment, invalidation strategy, TTL and jitter design, and stampede protection for your data patterns. Use when the user says my database is slow, I think I need caching, my app slows down under load, design our caching layer, fix cache invalidation, prevent a thundering herd, or set our cache TTL strategy.

Turn your photos and shopping order screenshots into a structured, searchable JSON wardrobe database with AI vision and automated linting.

nex postgres multi instance

by Nex AI

Free

Manage multiple Postgres versions and extensions on one Linux box with a port registry and unified backups.

Scraper architecture routing, anti-scraping strategies, data extraction, storage, compliance.

Governance framework, data quality, metadata, compliance, data lineage, 2026 trends.

nex datasheet extractor

by Nex AI

Free

Extracts structured electrical specs, package data, and compliance status from component datasheet PDFs.

Database Schema & Query Review Gate

by PubsProToolkit

Free

Review a database schema, queries, or migration for the mistakes that get expensive in production — bad table design, missing or wrong indexes, slow and N+1 queries, SQL injection, and migrations that lock or break prod. Engine-aware (PostgreSQL, MySQL, SQLite, SQL Server), it runs an ordered review and returns a PASS/REVIEW/BLOCK verdict with prioritized fixes. Schema mistakes are the most expensive kind — this catches them before they ship.