Agent skill

Creating Skills

by aiskillstore in aiskillstore/marketplace

Creates new Claude Code skills following best practices. An agent skill from aiskillstore/marketplace.

No licenceAuto-check passedAgent Workflows

Install Creating Skills

skills CLI
$ npx skills add aiskillstore/marketplace --skill creating-skills -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install aiskillstore/marketplace creating-skills --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/brendanshields/creating-skills .claude/skills/creating-skills && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
creating-skills
GitHub stars
433
Token cost
~1.1k tokens
SKILL.md length
280 words
Files
6 (incl. scripts)
Skills in repo
1,044
Repo updated
First seen
Licence
None found

At a glance

Creates new Claude Code skills following best practices. An agent skill from aiskillstore/marketplace.

  • Works in 4 steps: Gather Requirements → Choose Structure → Generate Skill → …
  • User wants to create a skill
  • SKILL.md covers Quick Start, Workflow: Create New Skill, Naming Rules and Description Best Practices, plus 4 more sections
  • Runs Shell scripts from its folder

What it does

Creating Skills is an agent skill from aiskillstore/marketplace. Creates new Claude Code skills following best practices. Guides through skill structure, naming, descriptions, and progressive disclosure. Use when user wants to create a skill, build a skill, make a new capability, or asks about skill best practices.

Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files, including scripts (for example `reference.md`, `scripts/validate.sh` and `skill-report.json`).

It sits in Agent Workflows, covering Skill authoring. The repository describes itself as: Security-audited skills for Claude, Codex & Claude Code. One-click install, quality verified.

When your agent uses it

  • User wants to create a skill
  • Make a new capability
  • Asks about skill best practices

Example prompts

  • “Use the creating-skills skill to create new Claude Code skills following best practices. An agent skill from aiskillstore/marketplace”
  • “/creating-skills”

Requirements

  • A Bash shell

Workflow steps

4 steps, taken from the step headings in SKILL.md.

  1. Gather Requirements
  2. Choose Structure
  3. Generate Skill
  4. Validate

What it can do on your machine

Read from SKILL.md and the folder at commit 44923f3. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Ships 1 file in scripts/ (Shell), which the agent can run.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Creating Skills loads about 1.1k tokens when it runs. Until then it costs about 67 tokens; SKILL.md has 280 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~67
When it runs · the whole SKILL.md, loaded when a task matches
~1.1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 280 words (~1,130 tokens).

“Guides creation of Claude Code skills using documented best practices.”

— opening of SKILL.md by aiskillstore
name
creating-skills

Read the full SKILL.md on GitHub

Files

SKILL.md and 5 other files (scripts) in skills/brendanshields/creating-skills of aiskillstore/marketplace.

  • SKILL.md
  • reference.md
  • scripts/validate.sh
  • skill-report.json
  • templates/advanced.md
  • templates/basic.md

Open the folder on GitHubat commit 44923f3

Compare with similar skills

Creating Skills next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Creating Skills compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Creating Skills this skillaiskillstore/marketplace433—~1.1kAutomated safety check: PassNone
Skill CreatorAzure/azqr79689 repos~8.2kAutomated safety check: PassApache-2.0
Claude Code Skill Developer Guidediet103/claude-code-infrastructure-showcase10k11 repos~3.5kAutomated safety check: PassMIT
Darwin Skill Optimizeralchaincyf/darwin-skill6.2k1 repos~4.7kAutomated safety check: PassMIT
Claude Code Command Developmentanthropics/claude-plugins-official38k10 repos~4.8kAutomated safety check: PassApache-2.0
Claude Code Plugin Structureanthropics/claude-plugins-official38k10 repos~3.4kAutomated safety check: PassApache-2.0

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Categories

Questions about Creating Skills

What does Creating Skills do?

Creates new Claude Code skills following best practices. An agent skill from aiskillstore/marketplace. Creating Skills is an agent skill from aiskillstore/marketplace. Creates new Claude Code skills following best practices.

When should I use Creating Skills?

Creating Skills fits situations like: user wants to create a skill; make a new capability; asks about skill best practices.

How do I install Creating Skills in Claude Code?

Run `npx skills add aiskillstore/marketplace --skill creating-skills -a claude-code`. Or copy the skill folder (skills/brendanshields/creating-skills in aiskillstore/marketplace) into .claude/skills/creating-skills in your project. Claude Code loads it when a task matches its description.

How do I install Creating Skills in Codex?

Run `npx skills add aiskillstore/marketplace --skill creating-skills -a codex`. Or copy the skill folder (skills/brendanshields/creating-skills in aiskillstore/marketplace) into .agents/skills/creating-skills in your project. Codex loads it when a task matches its description.

Can I use Creating Skills in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add aiskillstore/marketplace --skill creating-skills -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/creating-skills, .gemini/skills/creating-skills, .github/skills/creating-skills and .opencode/skills/creating-skills in your project.

What does Creating Skills need to run?

Going by SKILL.md and its folder, Creating Skills needs a shell for the scripts in its folder. Our summary lists: A Bash shell.

Does Creating Skills access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Creating Skills safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Creating Skills use?

No licence was found for Creating Skills or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Creating Skills use?

About 1.1k tokens (SKILL.md is roughly 4.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Creating Skills?

Skills that share tags, products or a category with Creating Skills: Skill Creator (Azure/azqr, 796 stars), Claude Code Skill Developer Guide (diet103/claude-code-infrastructure-showcase, 10k stars), Darwin Skill Optimizer (alchaincyf/darwin-skill, 6.2k stars) and Claude Code Command Development (anthropics/claude-plugins-official, 38k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Creating Skills?

aiskillstore (a GitHub organization) maintains it in aiskillstore/marketplace, which has 433 GitHub stars. The repository holds 1,044 skills in this directory. The repository was last updated on October 10, 2026.

Source: aiskillstore/marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.