Best security Claude skills

The 15 most popular security Claude skills out of 43.

Updated 2026-10-18

The 15 most popular security Claude skills out of 43, with a security level for each.

#NamePopularitySecurity
1analytics
Set up and audit analytics tracking and measurement pipelines
55.3k ★Low risk
2security-ownership-map
Map people-to-file ownership, compute bus factor, and identify risks
28.1k ★Not scanned
3audit-context-building
Deep architectural context via ultra-granular code analysis
7.6k ★Not scanned
4building-secure-contracts
Smart contract security toolkit with vulnerability scanners for 6 blockchains
7.6k ★Not scanned
5firebase-apk-scanner
Scan Android APKs for Firebase misconfigurations and security vulnerabilities
7.6k ★Not scanned
6insecure-defaults
Detect insecure default configurations like hardcoded secrets, default credentials, and weak crypto
7.6k ★Not scanned
7semgrep-rule-creator
Create and refine Semgrep rules for vulnerability detection
7.6k ★Not scanned
8variant-analysis
Find similar vulnerabilities via pattern-based analysis
7.6k ★Not scanned
9aig-agent-redteam
One-command Agent red-team security assessment skill
6.9k ★Low risk
10browser-act
Automate authenticated browsers with extraction and human handoff
6.2k ★Low risk
11entra-agent-id
Microsoft Entra Agent ID OAuth2 identities via Graph API
3.1k ★Not scanned
12fastapi-router-py
FastAPI routers with CRUD and auth
3.1k ★Not scanned
13web-perf
Audit Core Web Vitals and render-blocking resources
3.1k ★Low risk
14sandbox-sdk
Build sandboxed applications for secure, isolated code execution on Workers
3.1k ★Not scanned
15learning-target-authoring-guide
Authors observable competency learning targets across developmental bands
876 ★Low risk