Blog - Abbas ElDeniney

About this skill

# Skill Creator

A skill for creating new skills and iteratively improving them.

At a high level, the process of creating a skill goes like this:

Decide what you want the skill to do and roughly how it should do it
Write a draft of the skill
Create a few test prompts and run claude-with-access-to-the-skill on them
Help the user evaluate the results both qualitatively and quantitatively

- While the runs happen in the background, draft some quantitative evals if there aren't any (if there are some, you can either use as is or modify if you feel something needs to change about them). Then explain them to the user (or if they already existed, explain the ones that already exist)

- Use the eval-viewer/generate_review.py script to show the user the results for them to look at, and also let them look at the quantitative metrics

Rewrite the skill based on feedback from the user's evaluation of the results (and also if there are any glaring flaws that become apparent from the quantitative benchmarks)
Repeat until you're satisfied
Expand the test set and try again at larger scale

Your job when using this skill is to figure out where the user is in this process and then jump in and help them progress through these stages. So for instance, maybe they're like "I want to make a skill for X". You can help narrow down what they mean, write a draft, write the test cases,

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Use cases

Decide what you want the skill to do and roughly how it should do it
Write a draft of the skill
Create a few test prompts and run claude-with-access-to-the-skill on them
Help the user evaluate the results both qualitatively and quantitatively
Repeat until you're satisfied
Expand the test set and try again at larger scale

Installation

Download the ZIP using the button on the right.
Unzip the folder.
Drop the skill-creator/ folder inside ~/.claude/skills/.
Restart Claude Code (or your Claude Desktop session) — the skill loads automatically.

# macOS / Linux
mkdir -p ~/.claude/skills
unzip claude-skill-skill-creator.zip -d ~/.claude/skills/

What's included

LICENSE.txt

SKILL.md

agents/analyzer.md

agents/comparator.md

agents/grader.md

assets/eval_review.html

eval-viewer/generate_review.py

eval-viewer/viewer.html

references/schemas.md

scripts/__init__.py

scripts/aggregate_benchmark.py

scripts/generate_report.py

scripts/improve_description.py

scripts/package_skill.py

scripts/quick_validate.py

scripts/run_eval.py

scripts/run_loop.py

scripts/utils.py

Frequently asked

What does the Skill Creator skill do?

Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit, or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.

Who should use it?

Anyone working with Claude on automation-related tasks — consultants, founders, product teams, operators, and AI users who want repeatable, high-quality outputs from Claude.

How does it work?

Drop the folder into your `~/.claude/skills/` directory. Claude detects the SKILL.md instructions automatically and applies them when relevant.

What problem does it solve?

It removes the need to re-prompt Claude with the same context every time. Once the skill is installed, Claude already knows the rules, conventions, and procedures for this task.

How do I install it?

Download the ZIP, unzip it, and place the `skill-creator/` folder inside `~/.claude/skills/`. No other setup required.

Is it free?

Yes — free download. We just ask for your name and work email so we can send useful Claude updates.

Can I get a custom version?

Yes. Abbas ElDeniney builds tailored Claude skills for specific business workflows and data sources. Book a consultation to scope your version.

Skill Creator