/security

name: security-plan
description: Threat modeling, compliance, and secure by design architecture

Security Planning Skill

This skill is focused on ensuring systems are resilient against attacks and inherently protect user data.

When to use this skill

• When performing Threat Modeling (STRIDE) for new features.
• When planning Authentication, Authorization, and Session Management.
• When adhering to compliance requirements (GDPR, HIPAA, SOC2).

Guidelines

• **Principle of Least Privilege:** Services and users should only have the bare minimum access permissions they need.
• **Defense in Depth:** Do not rely on a single defensive mechanism. Validate inputs at the client, the API edge, and the database boundary.
• **Secret Management:** Never hardcode secrets. Plan to use KMS, HashiCorp Vault, or environment-injected managed identities.