Skill Builder
Create new Claude Code Skills with proper YAML frontmatter, progressive disclosure structure, and complete directory organization
Install / Use
npx skills add spencermarx/open-code-review --skill skill-builderInstalls into whichever agent you are using.
SKILL.md
Installable skill definition
Quality Score
Category
AutomationSupported Platforms
Tags
Our assessment of Skill Builder
Skill Builder scores 83/100 on our quality scale, 2147th of 2,866 Automation skills we index.
We have not analysed the SKILL.md file itself yet, so the content part of this score is an estimate until our crawler reaches it.
It has 368 GitHub stars, a meaningful sign that others use it.
Maintenance, license and trust
- The repository was last updated about 2 months ago, so Skill Builder is actively maintained.
- It is released under the Apache-2.0 license, a permissive license that allows use, modification and commercial use with attribution.
- Its trust signals score 100/100, with no cautions. These come from repository metadata, not a code audit — read the skill file before letting an agent act on it.
Skill Builder compared with similar skills
All 4 of these similar skills score higher than Skill Builder; compare them before choosing.
| Skill | Score | Stars | Updated | Format |
|---|---|---|---|---|
| Skill Builder (this skill)by spencermarx | 83 | 368 | 2mo ago | SKILL.md |
| Agent-Reachby Panniantong | 100 | 90.8k | 19d ago | CLAUDE.md |
| Scraplingby D4Vinci | 100 | 85.7k | today | MCP Server |
| rufloby ruvnet | 100 | 73.9k | today | MCP Server |
| algorithmic-artby anthropics | 100 | 177.9k | 12d ago | SKILL.md |
Frequently asked questions
- How do I install Skill Builder?
- Run
npx skills add spencermarx/open-code-review --skill "Skill Builder". The install tabs above show the steps for each supported agent. - Which AI agents does Skill Builder work with?
- It is written for Claude Code, as a SKILL.md file. Other agents that read the same format can often use it too.
- Is Skill Builder safe to use?
- It is Apache-2.0-licensed and scores 100/100 on trust signals. Skills are instructions an agent will follow, so read the file before installing it and do not approve commands you do not understand.
- Is Skill Builder still maintained?
- The repository was last updated about 2 months ago, so Skill Builder is actively maintained.
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Languages
Trust signals
From repository metadata: license, adoption, age and documentation. Not a code audit — see the Safety scan above for what the skill file itself contains.