skill-validator

skill-validator is a skill for Claude Code from sheikh-mohammad/agent-factory-claude-skills. It costs 75 tokens per session (2,651 once invoked), scanned A, original, no licence file.

A quality review method for agent skills that scores them across nine categories, including structure, documentation, user interaction, technical reliability, and maintainability.

In plain words
What is it for?
Use it when reviewing, auditing, or improving a skill against production-level standards.
Why use it?
It helps find weaknesses that could make a skill confusing, unreliable, or difficult to maintain.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Use it when reviewing, auditing, or improving a skill against production-level standards.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/sheikh-mohammad/agent-factory-claude-skills/skill-validator
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add sheikh-mohammad/agent-factory-claude-skills --skill skill-validator
Clone the repo
git clone --depth 1 https://github.com/sheikh-mohammad/agent-factory-claude-skills

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for skill-validator

README.md
[![agentmods](https://agentmods.dev/badge/skills/sheikh-mohammad/agent-factory-claude-skills/skill-validator/github.svg)](https://agentmods.dev/skills/sheikh-mohammad/agent-factory-claude-skills/skill-validator)
Your own site
<a href="https://agentmods.dev/skills/sheikh-mohammad/agent-factory-claude-skills/skill-validator"><img src="https://agentmods.dev/badge/skills/sheikh-mohammad/agent-factory-claude-skills/skill-validator/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for skill-validator

Your own site · 80×15
<a href="https://agentmods.dev/skills/sheikh-mohammad/agent-factory-claude-skills/skill-validator"><img src="https://agentmods.dev/badge/skills/sheikh-mohammad/agent-factory-claude-skills/skill-validator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 75 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,651 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00075 $0.02651
Opus 5 $0.00037 $0.01326
Sonnet 5 $0.00015 $0.00530
Haiku 4.5 $0.00007 $0.00265

Measured 12d ago against content hash 7cb146e587a2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

skill-validator scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/skills/skill-validator/SKILL.md · 350 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 350 lines · 75 tokens per session scan A 7cb146e587a2

Subscribe to this mod's changes

skill-validator is a skill published in the GitHub repository sheikh-mohammad/agent-factory-claude-skills (6 stars, last pushed 1mo ago), with no licence file. It adds 75 tokens to every session and 2,651 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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