skill-sentinel

skill-sentinel is a skill for Claude Code from ratnesh-maurya/cursor-claude-personas. It costs 40 tokens per session (2,106 once invoked), scanned A, original, MIT.

A tool for auditing and improving a collection of AI-agent skills. It examines skill quality, security, costs, gaps, duplicates, and dependencies, then produces health reports and improvement suggestions.

In plain words
What is it for?
Use it to audit a skill ecosystem, find duplicate skills, check its health, assess security and costs, and plan improvements.
Why use it?
It helps maintain many skills as a coherent system instead of checking each one separately. It reveals risks, overlap, and missing capabilities across the collection.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions Codex; mentions Gemini CLI.

Good fit Use it to audit a skill ecosystem, find duplicate skills, check its health, assess security and costs, and plan improvements.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ratnesh-maurya/cursor-claude-personas/skill-sentinel
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 ratnesh-maurya/cursor-claude-personas --skill skill-sentinel
Clone the repo
git clone --depth 1 https://github.com/ratnesh-maurya/cursor-claude-personas

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-sentinel

README.md
[![agentmods](https://agentmods.dev/badge/skills/ratnesh-maurya/cursor-claude-personas/skill-sentinel/github.svg)](https://agentmods.dev/skills/ratnesh-maurya/cursor-claude-personas/skill-sentinel)
Your own site
<a href="https://agentmods.dev/skills/ratnesh-maurya/cursor-claude-personas/skill-sentinel"><img src="https://agentmods.dev/badge/skills/ratnesh-maurya/cursor-claude-personas/skill-sentinel/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-sentinel

Your own site · 80×15
<a href="https://agentmods.dev/skills/ratnesh-maurya/cursor-claude-personas/skill-sentinel"><img src="https://agentmods.dev/badge/skills/ratnesh-maurya/cursor-claude-personas/skill-sentinel.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,106 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 $0.00040 $0.02106
Opus 5 $0.00020 $0.01053
Sonnet 5 $0.00008 $0.00421
Haiku 4.5 $0.00004 $0.00211

Measured 8d ago against content hash 1ce23f56bea8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

skill-sentinel 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.

The scan reads SKILL.md. This mod also ships 16 executable files (scripts/analyzers/__init__.py, scripts/analyzers/code_quality.py, scripts/analyzers/cross_skill.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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-sentinel/SKILL.md · 278 lines

How it starts

The opening of the file, as written. The whole thing — 278 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill Sentinel

Overview

Auditoria e evolucao do ecossistema de skills. Qualidade de codigo, seguranca, custos, gaps, duplicacoes, dependencias e relatorios de saude.

When to Use This Skill

  • When the user mentions "auditar skills" or related topics
  • When the user mentions "qualidade skills" or related topics
  • When the user mentions "verificar skills ecossistema" or related topics
  • When the user mentions "saude ecossistema skills" or related topics
  • When the user mentions "skills duplicadas" or related topics
  • When the user mentions "otimizar skills" or related topics

Do Not Use This Skill When

  • The task is unrelated to skill sentinel
  • A simpler, more specific tool can handle the request
  • The user needs general-purpose assistance without domain expertise

How It Works

Meta-agente que monitora, audita e evolui o ecossistema de skills. Analisa todas as skills em 7 dimensoes, identifica problemas, sugere melhorias e recomenda novas skills especialistas.

Resumo Rapido

Area Script O que faz
Discovery scanner.py Descobre todas as skills automaticamente
Qualidade analyzers/code_quality.py Complexidade, docstrings, error handling
Seguranca analyzers/security.py Secrets, SQL injection, HTTPS
Performance analyzers/performance.py API calls, caching, retry
Governanca analyzers/governance_audit.py Rate limits, audit log, confirmacoes
Documentacao analyzers/documentation.py SKILL.md, triggers, references
Dependencias analyzers/dependencies.py requirements.txt, versoes
Cross-Skill analyzers/cross_skill.py Duplicacao, padroes compartilhados
Custos cost_optimizer.py Tokens, verbosidade, output
Recomendacoes recommender.py Gap analysis, novas skills
Relatorio report_generator.py Markdown estruturado
Orquestracao run_audit.py CLI principal

Localizacao

Read the full file on GitHub · 278 lines

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 · 278 lines · 40 tokens per session scan A 1ce23f56bea8

Subscribe to this mod's changes

skill-sentinel is a skill published in the GitHub repository ratnesh-maurya/cursor-claude-personas (8 stars, last pushed 5mo ago), licensed MIT. It adds 40 tokens to every session and 2,106 once invoked, about $0.0002 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 2026-09-03.