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🗄️ SQL Migration Safety Doctor
The SQL Migration Safety Doctor is a specialized security and stability auditor for database migrations.
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See it in action
You say
Check the new migration in migrations/20231024_add_user_index.sql for any safety issues.
Your agent does
⚠️ High Risk: Non-Concurrent Index
- File:
migrations/20231024_add_user_index.sql - Line: 4
- Evidence:
CREATE INDEX idx_user_email ON users(email); - Impact: Will lock the
userstable for writes. - Remediation: Use
CREATE INDEX CONCURRENTLYin a separate transaction.
What you get
About this skill
What it does
The SQL Migration Safety Doctor is a specialized security and stability auditor for database migrations. It scans SQL files for destructive operations, heavy lock risks, and data integrity gaps before they ever hit your production environment. By identifying risky patterns like WHERE-less updates, lossy column changes, and non-concurrent index creation, it acts as a gatekeeper for your data layer.
Why use this skill
Prompting a generic AI for SQL reviews often misses subtle database-specific locking behaviors or platform-specific risks (like Postgres table locks). This skill uses a dedicated Python-based heuristic scanner combined with a rigorous audit checklist to provide evidence-based findings. It categorizes risks by severity—Critical to Info—and provides battle-tested remediation snippets to fix issues immediately.
Supported tools and workflows
- SQL Dialects: Optimized for Postgres, MySQL, and standard SQL patterns.
- Framework Agnostic: Works with migrations from Rails, Django, Prisma, Flyway, Liquibase, or raw SQL files.
- DevOps Integration: Ideal for pre-commit hooks or CI/CD pipeline simulations.
Output format
You receive a structured report detailing confirmed findings with file/line citations, a manual review checklist for complex logic, and specific SQL snippets to remediate the identified risks safely.
,sample_input:How to install
Drop the file into your AI Agent. Works with Claude, Cursor, ChatGPT, and 20+ more.
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Creator
JustHandled Labs builds focused agent skills for the work nobody wants to do by hand. Each one is a single repeatable job done well: catching the security and data mistakes that quietly ship, keeping docs and tests honest, gating the commands an agent is about to run, sharpening writing, and handling the founder chores around launches, outreach, and brand setup. Not generic AI productivity. Specific workflows that are easy to run, review, and repeat. Maintained by H.J. Westerfield, with a background in communications, editing, project coordination, customer support, and practical AI systems. Tools for people who want useful automation without theatrical complexity.
Frequently Asked Questions
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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.
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