Claude Skill Validator

lazymac2x/claude-skill-validator-api

Based on the repository name and deployment setup, this appears to be a validation service for Claude's skills or capabilities, hosted on Cloudflare Workers and accessible via MCP. The server runs at api.lazy-mac.com and supports both REST and JSON-RPC 2.0 interfaces through streamable HTTP transport. You'd reach for this when you need to programmatically verify or test Claude's functionality, though the public repository doesn't expose implementation details about what specific validation operations are available. It's a remote-only server, so you're calling out to the hosted API rather than running anything locally. Worth exploring if you're building tooling around Claude and need structured validation endpoints.

tools: 4
transport: HTTP
last updated: May 16, 2026

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Install

From registry metadata

$ npx add-mcp https://api.lazy-mac.com/claude-skill-validator/mcp --name claude-skill-validator

Run in your terminal. add-mcp asks which agents to add it to (Claude Code, Codex, Cursor and more). Add -g to install it for every project.

Review the command, arguments and environment values before installing. MCP servers run with your local permissions.

Other ways

Claude Code

$ claude mcp add --transport http claude-skill-validator https://api.lazy-mac.com/claude-skill-validator/mcp

Run in your terminal. Add --scope user to make it available in every project.

Tools

Verified live · 4 tools

Verified live against the running server on Nov 6, 2026.

validate_skillFully 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.3 params

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.

Parameters* required

allowed_toolsarray

Optional whitelist; non-listed tools will produce errors

skill_md*string

Full contents of the SKILL.md file including --- frontmatter ---

toolsarray

Optional override tool list if not declared in frontmatter

lint_frontmatterParse and validate only the YAML frontmatter of a Claude Skill. Returns parsed fields and any rule violations. Use during iterative authoring.1 params

Parse and validate only the YAML frontmatter of a Claude Skill. Returns parsed fields and any rule violations. Use during iterative authoring.

Parameters* required

yaml*string

Raw YAML content without --- delimiters (just key: value lines)

scan_securityScan a Claude Skill for dangerous shell commands, hardcoded secrets, or prompt-injection phrases. Returns findings with excerpts.1 params

Scan a Claude Skill for dangerous shell commands, hardcoded secrets, or prompt-injection phrases. Returns findings with excerpts.

Parameters* required

skill_md*string

The skill text to scan for security issues

score_skillRun full validation and return a 0–100 score plus a ship gate (pass/review/fail). Minimal payload suitable for CI/CD pipelines.3 params

Run full validation and return a 0–100 score plus a ship gate (pass/review/fail). Minimal payload suitable for CI/CD pipelines.

Parameters* required

allowed_toolsarray

skill_md*string

Full SKILL.md contents

toolsarray

Readme