migration auditor
by Samuel Rose
$5
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.
3
1
Claude Skills for Data & Databases
Skills for databases, data pipelines, ETL, SQL optimization, and data modeling. Handle complex data transformations and schema design.
569 live data & databases skills for Claude Code.
New in Data & Databases
Csv Analyzer
by Kevin Cline
$12
Automate data profiling with type detection, statistical analysis, and quality flags saved to a Markdown report.
2
0
db schema
by Kevin Cline
$12
Turn plain English app descriptions into fully normalized SQL schemas and entity relationship documentation.
2
0
openclaw web scraper
by BCStudio
Free
A high-performance scraping engine with Playwright stealth, proxy rotation, and anti-bot bypass capabilities.
1
42
Sql Query Clinic
by Edric Vale
$5
Diagnose slow or broken SQL: explain plans, index advice, rewrites, and correctness checks.
12
81
Database Design Engine
by Joker
Free
DB type routing, selection decision tree, relational/NoSQL design, performance optimization, 2026 trends.
1
29
Oracle PL\SQL Expert
$12
Expert Oracle PL/SQL architect for writing, refactoring, and performance-tuning enterprise database logic.
2
0
json to types
by Kevin Cline
$12
Automatically transform JSON files or raw strings into production-ready TypeScript interfaces or Python dataclasses.
2
0
wardrobe builder v1
by Judy S
Free
Turn your photos and shopping order screenshots into a structured, searchable JSON wardrobe database with AI vision and automated linting.
2
3
Data Analysis Decision Engine
by Joker
Free
Data analysis engine with 4D decision matrix, 15-min quick analysis template, statistics reference, A/B testing playbook, user behavior analysis, SQL templates.
1
21
🛡️ Supabase RLS Doctor
$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.
1
0
🧪 dbt Test & Quality Auditor
$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.
2
0
migration safety pro
by Timoranjes
$5
Run ALTER TABLE on a 10-million-row table without locking writes, losing data, or spending 3 hours writing rollback scripts.
2
0
Data Pipeline Quality Monitor
$7
Continuously monitor data pipelines, detect anomalies, and explain root causes before failures impact production.
0
0
sql db fix expert
by Roy Yuen
$8
A safe, expert-level database troubleshooter for fixing migrations, performance issues, and schema drift.
2
0
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.
2
0
Web Scraper Engine
by Joker
Free
Scraper architecture routing, anti-scraping strategies, data extraction, storage, compliance.
1
9
CSV Data Cleaning Engine
by Joker
Free
Data quality diagnosis, dedup strategies, format standardization, anomaly handling, batch processing.
1
5
DB Migration Guardian
$24
Plan, review, and execute safe database migrations with automatic rollback plans, backfill strategies, and zero-downtime sequencing.
1
4
🗄️ SQL Migration Safety Doctor
$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.
2
0
full stack saas builder architect
$12.99
Produces a full-stack SaaS architecture spec — database schema, authentication, REST API design, multi-tenant patterns, billing, deployment plan — for the stack specified. Use when the user says architect my SaaS, design a database schema for this app, set up authentication and billing, or scaffold a SaaS from spec to production. Do not use when the user wants a single automation pipeline instead.
1
0
nex kbo prospect pipeline
by Nex AI
$39
Automated Belgian KBO register importer and polite website email enricher for B2B lead generation.
5
2
sql query optimizer
by Timoranjes
Free
Turn a slow SQL query into a faster one: read the execution plan, find the missing index and rewrite it for Postgres, MySQL or SQL Server.
0
6
Data Governance Engine
by Joker
Free
Governance framework, data quality, metadata, compliance, data lineage, 2026 trends.
1
10
Claude SQL skills for queries, schemas and migrations
Claude SQL skills give Claude Code a fixed routine for database work that keeps coming back. Backend code around the database sits in API and backend skills for Claude.
Claude database skills by task
Tune queries: Sql Query Clinic reads the EXPLAIN ANALYZE output you give it and suggests composite indexes for PostgreSQL and MySQL, per its listing. Paste a plan from realistic data volumes.
Design schemas: Database Design Engine is free and, per its listing, gives guidelines and checklists across relational, NoSQL and NewSQL databases, without a database connection. For ORMs, Prisma Schema Safety Architect reviews Prisma schemas. Decide on access patterns first.
Ship migrations: SQL Migration Safety Doctor says on its listing that it flags WHERE-less updates, lossy column changes and non-concurrent index creation, and DB Migration Guardian plans zero-downtime schema changes. Ask for the rollback step with every migration.
Lock down access: Supabase RLS Doctor audits row-level security policies and, per its listing, works without connecting to the live project. Test policies as an ordinary user.
Check data pipelines: dbt Test & Quality Auditor finds missing dbt tests, and Data Pipeline Quality Monitor watches for anomalies.
Analyze files and report: Csv Analyzer profiles a CSV, CSV Data Cleaning Engine cleans one, and SQL Report Builder for Non Technical Managers covers reports.
Keeping SQL from Claude Code safe on production databases
A Claude Code SQL skill earns its place where a query or migration writes data, because it records the checks once. Never give an agent write access to a production database: use a read-only role or a staging copy, take a backup before any migration, and use parameterized queries instead of SQL built from strings, which opens the door to SQL injection. A skill's frontmatter can list allowed-tools, the tools Claude may use without asking while the skill is active, so read it in the SKILL.md preview.
How to choose a Claude database skill
Pick on database and task first: a query skill for slow pages, a migration skill before a release, a design skill for a new project. Give these database skills context about your schema, read the preview and scan result, and check any proposed migration against your own data first. To use Claude Code database skills, connect your agent to Agensi once, then ask for a skill by name or let Claude load it when the task matches; nothing is saved to ~/.claude/skills/ or .claude/skills/. The MCP setup guide covers the connection. Read our best skills for database engineering, Claude Code skills for data engineering and connecting Supabase through MCP, compare database skills for Cursor, or browse other categories in the Claude skills marketplace.
Frequently asked questions
Connect an MCP-compatible agent to Agensi and ask it to use the skill on your task. Approve any required purchase. The latest approved instructions load on each use; never save skill files to disk.
Some are free, but most are paid. Paid skills show the price upfront, are a one-time purchase, and include future updates from the creator.
Yes. Every listing is checked by an 8-point automated security scan before it can go live, and the result is shown on each skill page alongside the file list.
Get in touch
Questions, partnership ideas, or feedback on the platform? Tell us what's working and what isn't, we love to hear from you!
SR
Samuel Rose
Founder & CEO of Agensi
Email UsBook a Callinfo@agensi.io
We typically respond within a few hours during business hours.