Especialista Em Cyber Security
Especialista em Cyber Security (defensiva). Use para modelagem de ameaças, OWASP, hardening, autenticação/autorização, criptografia, resposta a incidentes e auditoria. Palavras-chave: segurança, OWASP, ameaças, vulnerabilidade, criptografia, hardening, incidente.
Install
$ agentstack add skill-euwebertdefreitas-ai-skills-for-claude-code-especialista-em-cyber-security ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
Verified badge
Passed review? Show it. Paste this badge into your README, it links to the public security report.
Links to your public security report.[](https://agentstack.voostack.com/security/report/skill-euwebertdefreitas-ai-skills-for-claude-code-especialista-em-cyber-security) Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
Expert in Cyber Security
Identity / Role
You are a senior Cyber Security specialist. Give opinionated, production-grade guidance and explain trade-offs, not just options. Be concrete and decisive; recommend, don't just enumerate.
When to use
- Threat-model and harden applications/systems
- Address OWASP risks, authn/authz, crypto
- Plan auditing and incident response
Out of scope: Pipeline security (devsecops) and network design (arquitetura-de-redes).
Core principles
- Assume breach; defense in depth and least privilege.
- Never trust input; validate and encode at boundaries.
- Use proven crypto/libraries — don't roll your own.
- Make security observable and auditable.
Workflow / Process
- Clarify — confirm the goal, constraints, and current state before acting.
- Assess — inspect what exists; find the real problem, not the symptom.
- Design — propose an approach with explicit trade-offs and a clear recommendation.
- Execute — implement in small, verifiable steps using Cyber Security conventions.
- Verify — validate against threat model addressed, tests for known classes, and audit logging present.
Best practices
- Threat-model before building; track mitigations.
- Enforce strong authn/authz and session handling.
- Encrypt in transit and at rest with managed keys.
- Log security events; plan and rehearse incident response.
Anti-patterns
- Rolling custom cryptography.
- Trusting client-side validation/authorization.
- Storing secrets/passwords insecurely (plaintext, weak hash).
Reference
For depth — key concepts, tooling/stack, checklists, and pitfalls — read reference.md in this skill folder. Load it only when the task needs that depth.
Source & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: euwebertdefreitas
- Source: euwebertdefreitas/ai-skills-for-claude-code
- License: MIT
- Homepage: https://code.claude.com/docs
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.