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Sql Fundamentals

Checked
pluginagentmarketplace·vlatest·database

This skill teaches you SQL basics, enabling you to query and manipulate data in databases effectively for analysis and automation.

Repository

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 pluginagentmarketplace/custom-plugin-sql --skill sql-fundamentals -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

pluginagentmarketplace

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 pluginagentmarketplace/custom-plugin-sql at 3f6ce49ea9.

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

Commit
3f6ce49ea9
Manifest
skills/sql-fundamentals/SKILL.md
Scanned
5 files, 622 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 provides foundational knowledge and capabilities for interacting with databases using SQL. It allows agents to construct and execute basic SQL queries, retrieve data from tables, and understand fundamental database concepts. The skill enables agents to perform simple data analysis and reporting tasks directly within a structured database environment.

When to use it

  • Data Retrieval: You need the agent to pull specific information (e.g., customer names, product prices) from a database.
  • Simple Reporting: Generate basic reports like "list all orders placed last week."
  • Database Exploration: Have the agent describe the structure of tables within a database (e.g., list column names and data types).
  • Data Filtering: Extract specific records based on certain criteria, such as “find all customers in California.”

Key capabilities

  • SQL query construction
  • Data retrieval from tables
  • Database schema understanding
  • Basic SQL syntax (SELECT, FROM, WHERE)

Example prompts

  • "Write a query to retrieve the names of all products with a price greater than $50."
  • "Describe the columns in the 'customers' table."
  • “List all orders placed after January 1st, 2024.”

Tips & gotchas

  • The agent requires access to a database and appropriate credentials. Ensure proper connection details are provided.
  • This skill focuses on fundamentals; complex queries or advanced SQL features may require additional skills.