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Sql Performance Review

Checked
hubert-dudek·vlatest·database

Helps with performance optimization, code review as part of working with databases and data persistence workflows.

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add hubert-dudek/medium --skill sql-performance-review -a claude-code
  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

hubert-dudek

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned hubert-dudek/medium at 68f76a698f.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Scanned
3 files, 107 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

This skill analyzes SQL queries and provides recommendations for performance improvements. It identifies potential bottlenecks, suggests indexing strategies, and offers alternative query structures to optimize execution time. The tool aims to help users understand why their SQL queries are slow and how to make them faster.

When to use it

  • You're experiencing slow response times from database queries in an application.
  • A developer needs assistance optimizing a complex SQL query for better efficiency.
  • Database administrators want to proactively identify and address performance issues before they impact users.
  • You are troubleshooting a specific report or dashboard that takes too long to generate.

Key capabilities

  • SQL Query Analysis
  • Performance Bottleneck Identification
  • Indexing Recommendations
  • Query Structure Optimization Suggestions

Example prompts

  • "Can you review this SQL query and suggest ways to improve its performance: SELECT * FROM orders WHERE customer_id = 123;?"
  • "I'm getting slow response times from a report. Analyze the following query and tell me what’s causing the issue: [Paste Query Here]"
  • "What indexes would you recommend for this table schema: [Describe Table Schema]?"

Tips & gotchas

To get the most accurate results, provide the AI agent with as much context as possible about your database schema and workload. The skill's recommendations are suggestions; always test changes in a non-production environment first.