# Secure Development

> - Security engineering guidance for building AND reviewing application code — authentication, authorization / row-level data isolation, injection, secrets, file uploads, transport & security headers, error handling, audit logging, and container/infra hardening. Use whenever writing or reviewing code that touches auth, sessions, user input, database queries, file uploads, secrets, external identity (OAuth/OIDC/SSO), or when hardening an app for production. Applies defense-in-depth and fail-closed principles with concrete, battle-tested patterns (distilled from real production hardening + external audits).

## Facts
- Page: https://tashan.sh/capability/skill-felipemendes85-secure-development
- tashan id: skill:felipemendes85/secure-development
- Source: https://github.com/felipemendes85/squad-plugin
- Type: skill
- Category: other
- tashan score: not scored (catalogued only — too little public evidence)
- Adoption: 9.0
- Upkeep: 62.0
- Freshness: 95.0
- Evidence coverage: 84% of the inputs this score can use
- Health: active
- Instruction depth: not yet graded
- License: MIT
- Official: no

## Install

```sh
cp -r secure-development ~/.claude/skills/
```

## Security audit
Not scanned. We audit npm-published capabilities; this one has no npm package we can resolve, or has not reached the queue. This is not a clean bill of health.

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Measured 2026-08-14 by tashan (https://tashan.sh) from public evidence. Scorer s5.