name: skill-check description: "Validate Claude Code skills against the agentskills specification. Catches structural, semantic, and naming issues before users do." category: development risk: safe source: https://github.com/olgasafonova/SkillCheck-Free date_added: "2026-03-11" author: olgasafonova tags: [validation, linter, agentskills, skill-authoring, code-quality] tools: [claude, cursor, windsurf, codex-cli] license: MIT
Why it matters for the portal
Use this for on-site workflow checks to reduce runaway automated publishing and promotion scripts.
Site use cases
site
Suggested output formats
Skill
Agent
Portal summary
Source preview
---
name: skill-check
description: "Validate Claude Code skills against the agentskills specification. Catches structural, semantic, and naming issues before users do."
category: development
risk: safe
source: https://github.com/olgasafonova/SkillCheck-Free
date_added: "2026-03-11"
author: olgasafonova
tags: [validation, linter, agentskills, skill-authoring, code-quality]
tools: [claude, cursor, windsurf, codex-cli]
license: MIT
allowed-tools: Read Glob
compatibility: claude-code
---
# SkillCheck
## Overview
Validate SKILL.md files against the [agentskills specification](https://agentskills.io) and Anthropic best practices. Catches structural errors, semantic contradictions, naming anti-patterns, and quality gaps in a single read-only pass.
## When to Use This Skill
- Use when user says "check skill", "skillcheck", or "validate SKILL.md"
- Use when reviewing a skill before publishing to a marketplace
- Use when debugging why a skill doesn't trigger correctly
- Use when onboarding a team to skill authoring standards
- Do NOT use for anti-slop detection, security scanning, or token analysis; use [SkillCheck Pro](https://getskillcheck.com) for those
name: skill-check
description: "Validate Claude Code skills against the agentskills specification. Catches structural, semantic, and naming issues before users do."
category: development
risk: safe
source: https://github.com/olgasafonova/SkillCheck-Free
date_added: "2026-03-11"
author: olgasafonova
tags: [validation, linter, agentskills, skill-authoring, code-quality]
tools: [claude, cursor, windsurf, codex-cli]
license: MIT
allowed-tools: Read Glob
compatibility: claude-code
---
# SkillCheck
## Overview
Validate SKILL.md files against the [agentskills specification](https://agentskills.io) and Anthropic best practices. Catches structural errors, semantic contradictions, naming anti-patterns, and quality gaps in a single read-only pass.
## When to Use This Skill
- Use when user says "check skill", "skillcheck", or "validate SKILL.md"
- Use when reviewing a skill before publishing to a marketplace
- Use when debugging why a skill doesn't trigger correctly
- Use when onboarding a team to skill authoring standards
- Do NOT use for anti-slop detection, security scanning, or token analysis; use [SkillCheck Pro](https://getskillcheck.com) for those