Checklist for creating and testing custom Claude skills
Ensure your custom Claude skill is well-structured, functional, and correctly invoked.
Before or after
after
Context
Creating custom skills for Claude.
What it does and when to use it
A checklist to verify the structure and functionality of custom Claude skills. It covers file requirements, metadata, content, code execution, and testing procedures to ensure Claude can correctly understand and invoke the skill.
Why it works
Following these steps ensures that the skill is properly formatted, contains all necessary information for Claude, and is tested for accurate invocation, maximizing its effectiveness.
Sources and credit
- How to create custom skills ↗Anthropic · Claude Help Center · Sep 3, 2026 · paraphrased
First seen on Subvolts Sep 3, 2026. Updated Sep 11, 2026. Spotted a problem? Tell us.
Where it shows up
- How to create custom skillsAnthropic · Claude Help Center · Sep 3, 2026
Related in the PlaybookPlaybook →
The Playbook: reusable how-tos, prompts, configs and tips pulled out of the news.
- TemplateClaude skill.md file structure and metadataTemplate for the core skill.md file, including required metadata and optional content. · 10 min
- HeuristicFocus custom skills on a single workflowDesign custom skills to perform one specific task rather than multiple unrelated functions. · 5 min
- Skill or agent configRecord a custom Claude skill from screen activityRecord your screen and voice to automatically create a custom Claude skill. · 15 min
- Setting tipEnable artifacts in Claude for code execution and file creationTurn on artifacts in Claude settings to allow code execution and file creation for enhanced tool building. · 1 min
- ToolClaude artifacts for building shareable apps and toolsArtifacts let you turn ideas into shareable apps, tools, or content by describing what you need to Claude. · 10 min
- Setting tipEnable code execution for custom skillsEnsure code execution is enabled to use custom skills that involve running code. · 2 min
Questions people ask
- Which AI tools does this work with?
- The sources used it with Claude, Claude Code.
- Where did this come from?
- Anthropic (Claude Help Center). Subvolts collected, normalized and credited it; the link above opens the original.