Category

Best security skills for Claude Code, Codex and other agents.

Skills for defending and testing software: security reviews, threat models, pentesting, bug bounty, scanning, forensics and agent safety.
skills
3,019
official
168

Security skills, ranked

Ranked by score. Sort bymost stars,trending,newest,recently updated

Security skills, ranked
#SkillRepositoryStarsUsed inTokensAuto-checkLicenceUpdated
1

Hardens code against vulnerabilities. An agent skill from penpot/penpot.

penpot/penpot61k6 repos~4.7kAutomated safety check: NotesMPL-2.0today
2

Audits source code, dependencies and config files for vulnerabilities and hardcoded secrets, using two bundled Python scanners and an OWASP Top 10 checklist.

eigent-ai/eigent15k—~1.8kAutomated safety check: NotesApache-2.0today
3
3.Skill InspectorOfficial

Decides whether an agent skill is safe to install by combining a SkillSpector static scan with the agent's own source review, ending in APPROVE, CAUTION or REJECT.

NVIDIA/SkillSpector20k—~1.8kAutomated safety check: PassApache-2.0today
4

Reference for RuView's research-grade WiFi sensing features: multistatic fusion, cross-viewpoint geometry, persistent field models, RF tomography, intention signals and mesh security.

ruvnet/RuView97k—~1.2kAutomated safety check: NotesMITtoday
5

Installs or refreshes Iron Proxy and its Iron Control web console for NanoClaw, with a local Docker setup, database, credentials and a human approval bridge.

nanocoai/nanoclaw31k—~4.6kAutomated safety check: NotesMITyesterday
6

Looks up symbols and addresses in vphone600 release and research kernel datasets, and cross-references XNU source, with findings that separate fact from inference.

Lakr233/vphone-cli15k—~530Automated safety check: PassMITtoday
7

Guides smart contract audits and bounty target selection with ten DeFi bug classes, kill signals, a Foundry PoC template and grep patterns.

awarexone/Agentic-Bug-Hunter5.3k3 repos~4.5kAutomated safety check: PassMIT2 days ago
8

A skill your agent uses when adding authentication, handling user input, working with secrets, creating API endpoints, or implementing payment/sensitive features.

jewbetcha/opentrace11617 repos~3.1kAutomated safety check: NotesMIT4 mo ago
9

Generate Echidna/Medusa-compatible Solidity fuzz suites from Foundry or Hardhat projects.

pashov/skills1.2k2 repos~11kAutomated safety check: PassMIT2 days ago
10

Guides building Flowsint enrichers and types: where definitions live, how the base class and vault work, and when a new type is warranted.

reconurge/flowsint9.3k—~2.6kAutomated safety check: PassApache-2.04 days ago
11

A skill your agent uses when fixing dependency vulnerabilities, running pnpm audit, or when the audit-dependencies CI check fails

payloadcms/payload45k—~2.8kAutomated safety check: PassMITtoday
12

Runs a Strix white-box security review that reads the source, then exploits what it finds in a sandbox so each reported issue has a proof-of-concept.

usestrix/strix67k—~1.1kAutomated safety check: PassApache-2.0today
13

Installs or refreshes OneCLI as the gateway provider for NanoClaw, copying the adapter files, registering the provider and running the setup script.

nanocoai/nanoclaw31k—~1.1kAutomated safety check: NotesMITyesterday
14

A skill your agent uses when the user is designing, prototyping, or rewriting a desktop app that must run on multiple OSes (macOS + Windows, optionally Linux) AND feel indistinguishable from a…

yetone/native-feel-skill1.9k1 repo~1.5kAutomated safety check: PassMIT4 mo ago
15

Finds and fixes out-of-range output writes in ONNX Runtime operator shape-inference functions where a getNumOutputs guard admits too few outputs.

microsoft/onnxruntime22k—~3.3kAutomated safety check: PassMITtoday
16

Runs deepsec's AI-powered security scan over a repository's uncommitted changes, its diff to main, or the whole codebase, using a regex pass followed by agent investigation.

vercel-labs/deepsec8.1k—~1.2kAutomated safety check: PassApache-2.08 days ago
17

Professional code security audit skill covering 55+ vulnerability types.

3stoneBrother/code-audit8931 repo~2.7kAutomated safety check: PassNo licence7 mo ago
18

Triages findings from a Strix pentest by severity, fixes each root cause with a minimal change, and re-runs Strix to confirm the exploit no longer works.

usestrix/strix67k—~1.5kAutomated safety check: PassApache-2.0today
19

Guidelines for Ascend NPU kernel / Triton-Ascend backend performance work in the FLA repo.

fla-org/flash-linear-attention5.8k—~5.6kAutomated safety check: PassMITyesterday
20

Build, review, debug, reverse-engineer, and package WebHome injected extension scripts for FongMi/WebHome App WebView pages.

webhtv/webhtv1.7k—~2.8kAutomated safety check: PassGPL-3.0today
21

Orchestrates a bug bounty session with a 5-phase workflow and a critical-thinking framework covering developer psychology, anomaly detection and What-If experiments.

awarexone/Agentic-Bug-Hunter5.3k2 repos~4.7kAutomated safety check: PassMIT2 days ago
22

A master set of ten grep command blocks that surface likely vulnerability classes in Solidity source within the first 30 minutes of auditing a new protocol.

tradecatlabs/vibe-coding-cn17k2 repos~3.3kAutomated safety check: PassMIT6 days ago
23

Scans a codebase for vulnerabilities with CodeQL's data flow and taint tracking in run-all or important-only modes, including data extensions for project-specific sources and sinks.

trailofbits/skills7.4k—~4.6kAutomated safety check: NotesCC-BY-SA-4.05 days ago
24

Points the agent at deepsec's own docs to answer questions about initializing, configuring, resuming, scanning with and extending the vulnerability scanner.

vercel-labs/deepsec8.1k—~956Automated safety check: PassApache-2.08 days ago
25

Shows how to call NEAR AI Cloud through an OpenAI-compatible API and verify that inference ran in a TEE, using attestation checks and signed chat responses.

internet-court/internet-court-skill6.4k2 repos~1.3kAutomated safety check: PassUnknown1 mo ago
26

Guided reverse engineering workflow for binaries, firmware, mobile apps, scripts, document samples, protocol captures, and unknown artifacts.

lingbol088-spec/reverse-flow-skill935—~2.4kAutomated safety check: PassMIT2 mo ago
27

Operates the metabigor CLI to map a target's network ranges, subdomains, ports, related domains, CDNs and archived URLs from free sources without API keys.

j3ssie/metabigor1.8k—~2.4kAutomated safety check: PassMIT2 mo ago
28

Provides open source intelligence techniques for CTF challenges.

ljagiello/ctf-skills3.4k2 repos~2.3kAutomated safety check: NotesMIT23 days ago
29

WooYun business logic vulnerability methodology — 22,132 real cases across 6 domains (authentication bypass, authorization bypass, payment tampering, information disclosure, logic flaws…

tanweai/wooyun-legacy1.8k—~1.9kAutomated safety check: PassUnknown2 mo ago
30

照片拍摄地点定位(看图找地点 / 网络迷踪 / 图寻 / 推拍摄时间)。给一张或几张照片,先一条命令做完元数据、OCR、以图搜图(intake.py),把线索和候选记到候选盘(board.py)上由脚本排名、给下一步;查表线索用 clues.py;卫星图和街景都是"机器先排序、人只看前几名"(satscan.py、match.py);每个结论都用真实数据核对,输出坐标 +…

Oldcircle/geo-sleuth814—~2.7kAutomated safety check: PassMIT13 days ago
31
31.Skill ScannerOfficial

Scan agent skills for security issues. An agent skill from getsentry/skills.

getsentry/skills1k4 repos~2.5kAutomated safety check: WarnApache-2.04 days ago
32

Generates an x-ray.md pre-audit report covering overview, enhanced threat model (protocol-type profiling, git-weighted attack surfaces, temporal risk analysis, composability dependency mapping)…

pashov/skills1.2k1 repo~10kAutomated safety check: PassMIT2 days ago
33

1:1 rebuild of award-winning creative websites (WebGL / scroll-animation / portfolio sites).

boyang-hu/website-rebuild-skill1.4k—~6.1kAutomated safety check: PassMIT1 mo ago
34

Runs Strix's autonomous exploit agents against each OWASP Top 10:2025 category and the API Security Top 10, reporting only what could actually be proven with a proof-of-concept.

usestrix/strix67k—~1.6kAutomated safety check: PassApache-2.0today
35

Build, review, debug, reverse-engineer data sources for, and package FongMi/WebHome custom homepage single-file HTML.

webhtv/webhtv1.7k—~3.8kAutomated safety check: PassGPL-3.0today
36

Creates a Phorge code review diff for the current branch with arc diff, while applying public-repo confidentiality rules since Phorge content later lands verbatim on the public GitHub repo.

yugabyte/yugabyte-db11k—~3.1kAutomated safety check: PassUnknowntoday
37

Recovers a client-side request signature or anti-bot token just far enough to replay blocked requests in bug bounty testing, starting from a captured packet.

awarexone/Agentic-Bug-Hunter5.3k—~4.7kAutomated safety check: PassMIT2 days ago
38

Find latent bugs in a local PostgreSQL source tree (RELxxSTABLE branch or HEAD) the way a core hacker does: build a heavily-poisoned debug instance (cassert + cache-discard + -O0/-ggdb3 + core…

digoal/blog8.6k—~4kAutomated safety check: PassGPL-2.09 days ago
39

Generates Mermaid diagrams from Trailmark code graphs, including call graphs, class hierarchies, module dependency maps, complexity heatmaps and attack surface data flows.

trailofbits/skills7.4k—~1.7kAutomated safety check: PassCC-BY-SA-4.05 days ago
40

Run a Kedro security scan on the full codebase or just a pull request.

kedro-org/kedro11k—~3.3kAutomated safety check: PassUnknownyesterday
41

Polymarket integration for prediction market trading on Polygon.

Polymarket/agent-skills1912 repos~2kAutomated safety check: PassNo licence7 mo ago
42

Assembles a single execution-ready hunt blueprint from the outputs of earlier hunt planning steps, without adding new research, evidence or analytics.

OTRF/ThreatHunter-Playbook4.7k—~1.2kAutomated safety check: PassMIT8 mo ago
43

当用户要求审计 Java、.NET 或 PHP 源码/部署产物/反编译产物/安全发现,并需要默认脚本输出目录、报告输出目录、Java/.NET 反编译与反混淆参考、Java 组件 YAML 正则匹配扫描、确认漏洞判定标准、安全 Payload 和 BurpSuite 原始 HTTP 请求包证据时使用。仅用于授权代码审计和防御性安全验证。

RuoJi6/audit-skills1k—~447Automated safety check: PassNo licence3 mo ago
44

Runs claude-flow CLI security scans for input validation, path traversal, SQL injection, XSS, hardcoded secrets and known CVEs, and writes an audit report.

ruvnet/ruflo74k2 repos~823Automated safety check: PassMITtoday
45

Convert English-language properties in PROPERTIES.md (produced by the Fizz skill) into Solidity assertions inside the existing fuzz harness, then flip their checkboxes.

pashov/skills1.2k2 repos~3.7kAutomated safety check: PassMIT2 days ago
46

Apply trader Serenity's (@aleabitoreddit) AI/semiconductor supply-chain analytical lens to US-stock ideas and market judgment.

yan-labs/serenity-aleabitoreddit4791 repo~3.3kAutomated safety check: PassNo licence6 days ago
47

A skill your agent uses for software supply-chain security assessment covering SBOM, SCA, CI/CD pipelines, container images, build integrity, dependency provenance, and vulnerability reachability.

zhaoxuya520/reverse-skill40k4 repos~953Automated safety check: WarnMIT15 days ago
48

Triage Elastic Security alerts — gather context, classify threats, create cases, and acknowledge.

elastic/agent-skills5921 repo~3.5kAutomated safety check: NotesApache-2.05 days ago

Questions, answered from the data.

What is the best security skill?

Security And Hardening from penpot/penpot ranks first of the 3,019 security skills listed here, with the highest score: its repository has 61k GitHub stars, 6 other GitHub owners carry a copy, its SKILL.md loads about 4.7k tokens and it has informational notes only in the automated safety check. Next come Security Auditor and Skill Inspector.

Which security skills are official?

168 of the 3,019 security skills are official, published by the vendor's own GitHub organization: Skill Inspector, ONNX Runtime Shape Inference Safety Audit, Deepsec Vulnerability Scanner, CodeQL Security Scan, Deepsec Documentation Guide and 163 more.

How are these skills ranked?

By Skill Navigator score, which combines the GitHub stars of the skill's repository (shared across that repo's skills and discounted for large collections), how many other GitHub owners carry a copy of the skill, and automated SKILL.md quality checks, minus penalties for safety-check warnings and for each further skill from the same repository. Skills that fail the safety check are not listed.