Automated summary
Creates or updates a skill (slash command) for Claude Code following best practices.
Strengths
- Structured process with built-in checklist
- References official best practices guide
- Clear guidance on file placement
- Handles size limits and dependencies
Limitations
- Specific to Claude Code ecosystem
- Requires prior knowledge of .claude files
- Does not cover external tool creation
When you need to create a new slash command skill or update an existing one in a Claude project.
For general configuration tasks or modifications unrelated to Claude skills.
Security analysis
SafeThe skill only instructs reading a documentation file and creating skill files within the project's .claude directory; no destructive actions, network calls, or exfiltration are involved.
No concerns found
How this analysis is madeExamples
Create a new skill called deploy that runs deployment scripts with rollback capability.Update my test skill in .claude/commands/test.md to include database setup and teardown steps.name: create-skill description: > Create a new skill (slash command) following Anthropic's best practices. Use when the user wants to create a new skill, command, or update an existing one. Reads the best practices guide first to ensure quality. argument-hint: <skill-name> <description of what it should do>
Create a Skill
Before creating or modifying any skill, read the best practices guide:
Read .claude/references/skills-best-practices.md first.
Process
- Understand what the skill should do — ask for concrete usage examples if unclear
- Plan what resources it needs (scripts, references, assets)
- Check if similar functionality already exists in
.claude/commands/ - Create the skill following these principles:
- YAML frontmatter with
nameand comprehensivedescription(this is the trigger) - Body under 500 lines — split to
references/if approaching limit - Move large inline content (scripts, API docs, schemas) to
.claude/references/ - Use imperative form in instructions
- Only include what Claude doesn't already know
- YAML frontmatter with
- Verify the skill works by mentally walking through a usage scenario
Checklist
- [ ] Frontmatter
descriptionincludes "when to use" triggers - [ ] Body is concise — no redundant explanations
- [ ] Large content moved to reference files with clear pointers
- [ ]
disable-model-invocation: trueif the skill should only be user-triggered (deploy, commit, destructive actions) - [ ] No extraneous files (README, CHANGELOG, etc.)
Where to Place Skills
- Project-specific:
.claude/commands/<name>.md(legacy) or.claude/skills/<name>/SKILL.md - Personal:
~/.claude/skills/<name>/SKILL.md
For this project, use .claude/commands/<name>.md for consistency with existing commands.
From the file to a first result
The download contains exactly the content displayed on this page. This copy may differ from the latest version in the source repository.
View the source and supporting filesThis download contains SKILL.md only. Any scripts, references, templates and dependencies are not included. Get the required files from the source, preserving their directory structure, before continuing.
1. Download the file
Download SKILL.mdFrom the root of a test project, save the file as .skill-downloads/create-a-skill-mrx3y0g5/SKILL.md, or use the command below. This folder is for inspecting the skill before installation.
Command for macOS/Linux or WSL: requires a POSIX shell and curl. On Windows without WSL, use the download button and create the folder manually.
mkdir -p '.skill-downloads/create-a-skill-mrx3y0g5' && curl --fail --show-error --location 'https://skills-guides.com/api/skills/create-a-skill-mrx3y0g5/download' --output '.skill-downloads/create-a-skill-mrx3y0g5/SKILL.md.part' && mv '.skill-downloads/create-a-skill-mrx3y0g5/SKILL.md.part' '.skill-downloads/create-a-skill-mrx3y0g5/SKILL.md'2. Check prerequisites
Read SKILL.md before using it. If it references scripts or external services, inspect them and prepare the required access in your test environment.
No recognized prerequisites section in this file. This does not mean it is self-contained: libraries, tools and access requirements may be mentioned elsewhere in the content or source repository.
The platforms on this page are catalog indications. The paths below follow tool documentation; they do not prove this skill has been run in those tools. No minimum tool version is confirmed for this listing.
3. Load the skill
After inspection, copy the complete folder into your project using one of the commands below, then open a new tool session. The command stops if a folder with the same name already exists: compare the files before replacing it.
Claude Code
test -f '.skill-downloads/create-a-skill-mrx3y0g5/SKILL.md' && test -s '.skill-downloads/create-a-skill-mrx3y0g5/SKILL.md' && mkdir -p '.claude/skills' && test ! -e '.claude/skills/create-skill' && cp -R '.skill-downloads/create-a-skill-mrx3y0g5' '.claude/skills/create-skill'OpenSkills
OpenSkills must already be installed. The local install/read procedure is checked with OpenSkills 1.5.0, which requires Node.js ≥ 20.6.0. Catalog slugs are not resolved automatically.
Official OpenSkills installationopenskills install './.skill-downloads/create-a-skill-mrx3y0g5'openskills read 'create-a-skill-mrx3y0g5'Reading should display the installed file content and its base directory. It does not run the skill or install its dependencies.
For an agent that reads AGENTS.md, then sync the index. This command changes AGENTS.md: review the diff before using it.
openskills syncManual method or another tool: attach SKILL.md to a conversation, or open it in an agent that can read files. Include any required supporting resources. No universal folder is recognized by every tool.
4. Try a first task
Use a short, synthetic input: an API endpoint, a small document or an interface brief. In a new conversation, attach the file or give the agent its path, then adapt this request:
Read .skill-downloads/create-a-skill-mrx3y0g5/SKILL.md and apply its instructions to this example: [describe a test input]. Identify any missing files, dependencies or access. Produce the result requested by the skill without inventing data or running unreviewed scripts.Expected result: output matching the skill instructions, or a precise list of missing prerequisites. A read confirmation alone does not validate a first use. If an external resource is unavailable, that path remains untested.
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