What does the Alina skill do?

Design and tune databases: schema, indexing, EXPLAIN query tuning and zero-downtime migrations. Load it once into Claude Projects and you get a configured Database Engineer without re-explaining context at the start of every session. Always develop on a branch with tests, run it in CI against a staging environment with code review, and promote to production only after tests and approvals; never ship untested changes straight to production.

How do I install this skill file?

Download the .skill package (it contains SKILL.md), paste the contents into Claude Projects Instructions or your AI's system prompt, add your own context and start your first session. Works with Claude, ChatGPT, or any AI chat that accepts system prompts.

Which AI tools does this skill work with?

Works with Claude (recommended), ChatGPT, Gemini, Perplexity and Copilot, and any AI chat that accepts system prompts. Claude Projects gives the best results.

What is included in this download?

One .skill package delivered instantly after purchase: the full SKILL.md role configuration plus a worked-example file with a real scenario so you see the quality before you rely on it. No subscription, yours permanently.

How is this different from using Claude without the Alina skill?

Without a skill file your AI starts every session as a general assistant. With Alina loaded it applies Database Engineer methodology from the first message, with consistent quality every time. Always develop on a branch with tests, run it in CI against a staging environment with code review, and promote to production only after tests and approvals; never ship untested changes straight to production.

Database Engineer AI Skill (PostgreSQL) for Claude & ChatGPT

Name: Alina — Database Engineer AI Skill
Brand: KissMySkills
Price: 29.0 USD
Availability: InStock

Alina — Database Engineer AI Skill

$29.00

Alina — Database Engineer AI Skill

$29.00

⚡ Instant download ◆ Claude & ChatGPT ∞ Keep forever

Instant download · 30-day money-back guarantee. Pay once, keep forever — no subscription. Refund policy

Design and tune databases: schema, indexing, EXPLAIN query tuning and zero-downtime migrations.

Schema design, normalization and constraints
Indexing (b-tree, partial, composite, covering) and when not to
Query tuning with EXPLAIN ANALYZE; transactions and isolation
Replication, partitioning and zero-downtime migrations

Database engineers who want sound schemas, fast queries and safe migrations, not risky prod SQL.A senior database engineer bills $110+/hr, this is one file, yours forever.

// what's inside

Drop Alina into Claude and get a senior database engineer who designs sound schemas, tunes slow queries with EXPLAIN, and runs zero-downtime migrations.

Alina builds and tunes relational databases (PostgreSQL-primary, MySQL aware): schema design and normalization, indexing (b-tree, partial, composite, covering) and when not to index, query tuning with EXPLAIN ANALYZE, transactions and isolation, locking and concurrency, connection pooling, replication and read replicas, partitioning, safe zero-downtime migrations, and backup and restore. Always test changes on a copy or staging database, review the query plan, take a backup, and use a zero-downtime pattern before production.

What you get

→Schema design, normalization and constraints
→Indexing (b-tree, partial, composite, covering) and when not to
→Query tuning with EXPLAIN ANALYZE; transactions and isolation
→Replication, partitioning and zero-downtime migrations

📄 alina-database-engineer.skill Under 2 min install Works with Claude, ChatGPT & any AI chat

How to install

Download the .skill package → open Claude → paste SKILL.md into your Project Instructions or system prompt → describe your requirement → Alina builds the answer. Includes a full worked example so you see exactly what you get.

alina-database-engineer.skill

# Alina — Database Engineer

You are Alina, a senior database engineer. You design sound schemas, tune slow queries with EXPLAIN, and run zero-downtime migrations, tested on a copy first.

## How you work
1. Clarify the access patterns and the data model
2. Design the schema and the right indexes
3. Tune queries with EXPLAIN ANALYZE
4. Write safe zero-downtime migrations; test on a copy; back up

Always test schema changes on a copy or staging database, review the plan, take a backup, and never run untested destructive SQL against production.

Excerpt from the actual file you'll download.

// try it

prompt

$Design a schema, diagnose a slow query with EXPLAIN ANALYZE, and write a zero-downtime migration.

Alina returns the normalized schema with DDL and index rationale, a before/after EXPLAIN ANALYZE showing the seq-scan-to-index fix, and an expand/contract zero-downtime migration with a rollback path and validation queries.

// how to install Under 2 minutes

Four steps. Any AI chat.

01
Download the file
After checkout, the download link lands in your inbox. Save the file anywhere on your device.
02
Open your AI chat
Claude, ChatGPT, Gemini, Grok, or Copilot — whichever one you already use.
03
Paste the file contents
Drop it into the system prompt, Project instructions, or custom instructions field.
04
Start working
Your AI is now configured as a specialist. Ask it anything inside its domain.