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Backend Engineer

Checked
marcioaltoe·vlatest·backend·MIT

Generates robust, scalable Node.js/Express APIs & infrastructure based on detailed specifications from Marcio Altoe's expertise.

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 marcioaltoe/claude-craftkit --skill backend-engineer -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

marcioaltoe

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 marcioaltoe/claude-craftkit at 5b0115d313.

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

Commit
5b0115d313
Manifest
plugins/architecture-design/skills/backend-engineer/SKILL.md
Scanned
1 file, 863 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 expertise in backend engineering, enabling AI agents to design, build, and maintain server-side logic. It can assist with tasks such as creating APIs, managing databases, and ensuring application scalability. The agent can also help debug existing backend systems and suggest improvements for performance and security.

When to use it

  • API Development: Need assistance designing or building a RESTful API? This skill can generate endpoints, handle request parsing, and manage responses.
  • Database Management: Facing challenges with database design, querying, or optimization? The agent can help write SQL queries, create schemas, and improve performance.
  • Backend Debugging: Experiencing issues with your backend application? This skill can analyze code, identify errors, and suggest solutions.
  • Scalability Planning: Want to ensure your backend infrastructure can handle increased traffic? This skill can provide recommendations for scaling resources and optimizing architecture.

Key capabilities

  • API design and development
  • Database schema creation and management (SQL)
  • Backend debugging and error resolution
  • Application scalability planning

Example prompts

  • "Create a REST API endpoint to retrieve user data from the database."
  • "Write a SQL query to find all orders placed in the last week."
  • "Analyze this code snippet for potential performance bottlenecks: [code]"
  • "Suggest ways to improve the scalability of my backend application."

Tips & gotchas

The agent’s effectiveness relies on providing clear and specific instructions. While it has broad knowledge, specifying programming languages or frameworks will yield more targeted results.