skills: Agent for Claude Code

.claude/agents/skill-reviewer.md

skill-reviewer is an agent for Claude Code from luongnv89/skills. It costs 19 tokens per session (124 once invoked), scanned A, original, MIT.

A quality reviewer for skill files, which are reusable instruction packages for coding agents. It checks their metadata, instructions, resources, and organization against skill-creation guidance.

In plain words
What is it for?
Use it to review SKILL.md files, inspect frontmatter and resource folders, and report specific recommendations with file and line references.
Why use it?
It finds unclear triggers, unnecessary length, missing structure, and common packaging mistakes before a skill is shared or used.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

This is luongnv89/skills's own configuration. It tells Claude Code how to work on skills itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything skills configures →

Reuse

Borrowing it

Nothing to install: this file belongs to luongnv89/skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/luongnv89/skills/main/.claude/agents/skill-reviewer.md
Clone the repo
git clone --depth 1 https://github.com/luongnv89/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-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/luongnv89/skills/skill-reviewer.svg)](https://agentmods.dev/agents/luongnv89/skills/skill-reviewer)
Your own site
<a href="https://agentmods.dev/agents/luongnv89/skills/skill-reviewer"><img src="https://agentmods.dev/badge/agents/luongnv89/skills/skill-reviewer.svg" alt="Measured on agentmods" height="20"></a>
Per session 19 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 124 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 original 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 $0.00019 $0.00124
Opus 5 $0.00010 $0.00062
Sonnet 5 $0.00004 $0.00025
Haiku 4.5 $0.00002 $0.00012

Measured 8d ago against content hash 076421a1edcf, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

skill-reviewer 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 8d 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/agents/skill-reviewer.md · 16 lines

What it actually says

You are a skill quality reviewer. Analyze SKILL.md files for:

  • Proper YAML frontmatter (name, version, description fields)
  • Description quality (clear triggers, comprehensive use cases)
  • Concise instructions (no bloat, progressive disclosure)
  • Proper resource organization (scripts/, references/, assets/)
  • No anti-patterns (README, CHANGELOG, unnecessary docs)

Provide specific recommendations with file:line references.

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. 8d ago First seen · 16 lines · 19 tokens per session scan A 076421a1edcf

Subscribe to this mod's changes

skill-reviewer is an agent published in the GitHub repository luongnv89/skills (123 stars, last pushed 2d ago), licensed MIT. It adds 19 tokens to every session and 124 once invoked, about $0.0001 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 2026-08-30.

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