claude-skill-validator
Cloudflare Workers MCP server: claude-skill-validator
Should I use this
Quality & Safety
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"claude-skill-validator": {
"url": "https://api.lazy-mac.com/claude-skill-validator/mcp"
}
}
}Remote endpoints
https://api.lazy-mac.com/claude-skill-validator/mcpstreamable-httpWhat it can do
Tool inventory
Tools (4)
⚪validate_skill(skill_md, tools, allowed_tools)
Fully validate a Claude SKILL.md file — frontmatter rules, body quality, security scan, tool collision check. Returns score (0–100), gate (pass/review/fail), and structured errors/warnings.
Input Schema
{
"type": "object",
"properties": {
"skill_md": {
"type": "string",
"description": "Full contents of the SKILL.md file including --- frontmatter ---"
},
"tools": {
"type": "array",
"items": {
"type": "string"
},
"description": "Optional override tool list if not declared in frontmatter"
},
"allowed_tools": {
"type": "array",
"items": {
"type": "string"
},
"description": "Optional whitelist; non-listed tools will produce errors"
}
},
"required": [
"skill_md"
]
}🟢lint_frontmatter(yaml)
Parse and validate only the YAML frontmatter of a Claude Skill. Returns parsed fields and any rule violations. Use during iterative authoring.
Input Schema
{
"type": "object",
"properties": {
"yaml": {
"type": "string",
"description": "Raw YAML content without --- delimiters (just key: value lines)"
}
},
"required": [
"yaml"
]
}⚪scan_security(skill_md)
Scan a Claude Skill for dangerous shell commands, hardcoded secrets, or prompt-injection phrases. Returns findings with excerpts.
Input Schema
{
"type": "object",
"properties": {
"skill_md": {
"type": "string",
"description": "The skill text to scan for security issues"
}
},
"required": [
"skill_md"
]
}⚪score_skill(skill_md, tools, allowed_tools)
Run full validation and return a 0–100 score plus a ship gate (pass/review/fail). Minimal payload suitable for CI/CD pipelines.
Input Schema
{
"type": "object",
"properties": {
"skill_md": {
"type": "string",
"description": "Full SKILL.md contents"
},
"tools": {
"type": "array",
"items": {
"type": "string"
}
},
"allowed_tools": {
"type": "array",
"items": {
"type": "string"
}
}
},
"required": [
"skill_md"
]
}Community
Evidence