---
title: "skill.validator"
description: "Multi-standard validator for agent skills and plugins"
canonical: https://agentpluginsdirectory.com/plugins/skill.validator
last-updated: 2026-10-02
---

# skill.validator
Multi-standard validator for agent skills and plugins
- Slug: skill.validator
- Publisher: Adel Ben Yahia
- Repository: https://github.com/adelpro/skill-validator
- Manifest: plugin.json
- Version: 1.5.0
- License: MIT
- Category (editorial): agent-tooling
- Skills: 1 (skill-validator-omni)
- MCP servers: 0
- Stars: 0
- Listing: https://agentpluginsdirectory.com/plugins/skill.validator
- Schema: https://agent-plugins.org/schemas/1.0.0/plugin.schema.json

## What skill.validator does, in the publisher's words

One command validates an agent skill or plugin against every standard that gates whether it installs and works across agents. The flagship check is Agent Plugins 1.0.0 (agent-plugins.org), the vendor-neutral spec for packaging Agent Skills and MCP servers into portable plugins, published by a Technical Steering Committee from Amazon, Cursor, Microsoft, OpenAI, and Vercel.

Other validators cover one spec. skills-ref checks only agentskills.io. Creation tools like skill-creator produce skills without certifying them. This tool checks the full set:

- Agent Plugins 1.0.0: plugin.json manifest ($schema, name constraints, closed field set), skills/ layout, optional mcp.json
- agentskills.io spec: name/dir rules, description length, compatibility <=500, allowed-tools
- Anthropic best practices: third-person descriptions, progressive disclosure, bodies under 500 lines

From the project README, punctuation lightly normalized. Full text: https://raw.githubusercontent.com/adelpro/skill-validator/HEAD/README.md

## Skills

- skill-validator-omni: Validates skills against seven authoring standards across all agents. Use to audit/certify.

Descriptions come from the frontmatter of each SKILL.md, punctuation lightly normalized.