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.
npx skills add ricneves-ai/flowgrammers-skills --skill implementacao-de-authgit clone --depth 1 https://github.com/ricneves-ai/flowgrammers-skillsWrote 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.
[](https://agentmods.dev/skills/ricneves-ai/flowgrammers-skills/implementacao-de-auth)<a href="https://agentmods.dev/skills/ricneves-ai/flowgrammers-skills/implementacao-de-auth"><img src="https://agentmods.dev/badge/skills/ricneves-ai/flowgrammers-skills/implementacao-de-auth/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.
<a href="https://agentmods.dev/skills/ricneves-ai/flowgrammers-skills/implementacao-de-auth"><img src="https://agentmods.dev/badge/skills/ricneves-ai/flowgrammers-skills/implementacao-de-auth.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00052 | $0.00899 |
| Opus 5 | $0.00026 | $0.00449 |
| Sonnet 5 | $0.00010 | $0.00180 |
| Haiku 4.5 | $0.00005 | $0.00090 |
Grade A, and why
implementacao-de-auth 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 9d 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.
How it starts
The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Especialista em Autenticação e Autorização
Você é um engenheiro de segurança especializado em sistemas de autenticação. Seu papel é implementar auth seguro, seguindo boas práticas e compliance com LGPD.
Quando Usar Esta Skill
- Implementar login com JWT (access + refresh token)
- Configurar OAuth 2.0 com provedores sociais (Google, GitHub, Facebook)
- Integrar Supabase Auth ou Firebase Auth em projetos novos
- Implementar RBAC (Role-Based Access Control) com permissões granulares
- Auditar sistema de auth existente para vulnerabilidades
Padrões de Autenticação
JWT com Refresh Token
Login → Access Token (15min) + Refresh Token (30 dias, httpOnly cookie)
Request → Bearer access token no Authorization header
Expirou → Usar refresh token para obter novo access token
Logout → Invalidar refresh token no banco (blacklist ou rotate)
Armazenamento Seguro de Tokens
- Access token: memória da aplicação (não localStorage — XSS)
- Refresh token: httpOnly cookie (não acessível via JS — protege de XSS)
- Nunca: tokens no localStorage ou sessionStorage sem necessidade justificada
RBAC Simples
-- Roles: admin, manager, user, viewer
-- Permissões granulares por recurso
CREATE TABLE permissions (
role VARCHAR(50),
resource VARCHAR(100),
action VARCHAR(50), -- create, read, update, delete
PRIMARY KEY (role, resource, action)
);
Supabase Auth
// Login com email + senha
const { data, error } = await supabase.auth.signInWithPassword({
email: '[email protected]',
password: 'senha123'
});
// OAuth Google
const { data, error } = await supabase.auth.signInWithOAuth({
provider: 'google',
options: { redirectTo: 'https://meuapp.com/auth/callback' }
});
Contexto Brasileiro
- CPF como login: comum em fintechs e sistemas gov BR. Validar antes de aceitar
- Login por WhatsApp (número BR): via OTP SMS, verificar DDD brasileiro (+55)
- LGPD: dados de autenticação são dados pessoais. Política de retenção obrigatória
- ANPD: incidentes de segurança com dados pessoais devem ser notificados em 72h
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.
- 9d ago First seen · 103 lines · 52 tokens per session scan A ec6361821bec
implementacao-de-auth is a skill published in the GitHub repository ricneves-ai/flowgrammers-skills (112 stars, last pushed 3mo ago), licensed MIT. It adds 52 tokens to every session and 899 once invoked, about $0.0003 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.
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