security-ai-keys skill

---
name: security-ai-keys
description: |-
  Review AI API key leakage patterns and redaction strategies. Use for identifying exposed keys for OpenAI, Anthropic, Gemini, and 10+ other providers. Use proactively when code integrates AI providers or when environment variables/keys are present.
  Examples:
  - user: "Check for leaked OpenAI keys" → scan for `sk-` patterns and client-side exposure
  - user: "Is my Gemini integration secure?" → audit vertex AI config and key redaction
  - user: "Review AI provider logging" → ensure secrets are redacted from logs
  - user: "Scan for Anthropic secrets" → check for `ant-` keys in code and configs
  - user: "Audit Vertex AI integration" → verify proper IAM roles and service account usage
---

<overview>

Security audit patterns for AI API key leakage in applications integrating AI providers.

</overview>

<rules>

## Core Principles

- MUST treat AI API keys as secrets and keep them server-side.
- MUST NOT ship keys to browsers or mobile clients.
- SHOULD avoid logging keys; redact before logging or error reporting.
- MUST rotate keys immediately if exposure is suspected.

</rules>

<vulnerabilities>

## Common Leak Paths

### 1) Client-Side Exposure
- `NEXT_PUBLIC_*` / `VITE_*` env vars containing AI keys
- Direct calls to AI provider endpoints from browser code

### 2) Build Artifacts
- Keys embedded in bundles (`dist/`, `build/`, `.next/`)
- Source maps exposing server code containing keys

### 3) Logs and Telemetry
- `console.log` / logger statements that include key values
- Error tracking payloads (Sentry, Datadog) with headers included

</vulnerabilities>

<commands>

## Quick Audit Commands

```bash
# Env files: AI keys accidentally exposed to client
rg -n "(NEXT_PUBLIC_|VITE_).*(OPENAI|OPENROUTER|ANTHROPIC|GEMINI|GOOGLE|VERTEX|BEDROCK|AWS|AZURE|MISTRAL|COHERE|GROQ|PERPLEXITY|TOGETHER|REPLICATE|FIREWORKS|HUGGINGFACE|HF_)" . -g "*.env*"

# Client code calling AI APIs directly (check for browser use)
rg -n "api\.openai\.com|openrouter\.ai|api\.anthropic\.com|generativelanguage\.googleapis\.com|aiplatform\.googleapis\.com|bedrock.*amazonaws\.com|api\.mistral\.ai|api\.cohere\.ai|api\.groq\.com|api\.together\.xyz|api\.perplexity\.ai|api\.replicate\.com|api\.fireworks\.ai|openai\.azure\.com" . -g "*.js" -g "*.ts" -g "*.jsx" -g "*.tsx" -g "*.vue"

# Scan build outputs for likely keys (heuristic)
rg -a "sk-[A-Za-z0-9]{20,}|sk-ant-[A-Za-z0-9-]{20,}|sk-or-[A-Za-z0-9-]{20,}|AIza[0-9A-Za-z_-]{35}|hf_[A-Za-z0-9]{20,}" dist/ build/ .next/ 2>/dev/null

# Service account credentials and cloud auth files
rg -n "\"type\"\s*:\s*\"service_account\"|GOOGLE_APPLICATION_CREDENTIALS|AWS_ACCESS_KEY_ID|AWS_SECRET_ACCESS_KEY|AZURE_OPENAI_API_KEY" . -g "*.env*" -g "*.json"
```

</commands>

<checklist>

## Hardening Checklist

- [ ] AI provider keys only in server runtime (never in browser)
- [ ] `.env.local` and `.env.*.local` are gitignored
- [ ] Logs redact or omit secrets (request headers, env values)
- [ ] Build artifacts scanned before deploy
- [ ] Keys rotated if exposure suspected

</checklist>

<scripts>

## Scripts

- `scripts/scan.sh` - First-pass AI key leakage scan

</scripts>