Security

26,946 mods in this category, of every kind an agent can take. Each one carries what it costs per session, what the scan found, and whether it is the original.

ergrelet/windiff

Skill Codex

Generate and interpret security-research diffs between Windows versions or patch levels using this repo's WinDiff CLI and databases. Use when comparing Windows builds or binaries such as ntoskrnl.exe, ntdll.dll, win32k.sys, ci.dll, or cng.sys to find changed syscalls, symbols, types, mitigation flags, callbacks…

not rated 396 +1 5d ago A SkillSpector: pass 140 tokens GPL-3.0

ghidra-rpc

194

cellebrite-labs/ghidra-rpc

Skill Claude CodeCodex

Reverse engineering assistant powered by Ghidra. Use for binary analysis, decompilation, vulnerability research, auditing compiled code, renaming symbols, annotating disassembly, cross-references, or any RE task - even without explicit mention of Ghidra.

not rated 396 +2 changed 3d ago A 58 tokens

llm-testing

195

Eyadkelleh/awesome-skills-security

Skill Claude CodeCodex

Comprehensive LLM security testing prompts for bias detection, data leakage, alignment testing, and adversarial prompt resistance.

not rated 394 +1 5mo ago A Socket: warnSnyk: fail 27 tokens

1llu50ry/mcp-gamehacking

Skill Claude CodeCodex

This is an independent systems-security research project that documents a literature and architecture feasibility study for a vendor-agnostic Linux compatibility layer capable of hosting kernel anti-c.

not rated 392 9d ago A 38 tokens original MIT

break

197

JDArmy/BREAK

Skill Claude Code

A Chinese-language business-security knowledge base covering risks, defenses, attack tools, threat actors, terms, business areas, and documented cases.

not rated 388 changed 15d ago A 50 tokens original Apache-2.0

matank001/cursor-security-rules

Cursor rule Cursor needs its repo

Path traversal attacks occur when user-controlled input is used to construct file paths, allowing attackers to access files outside the intended directory. This can lead to unauthorized file access, data leakage, or system compromise.

not rated 383 1y ago A 2,694 tokens original MIT

humble-header-analyst

200

rfc-st/humble

Skill Claude CodeCodex

Expert-level parsing and remediation of 'humble' HTTP security header reports. Use this skill whenever the user provides a report generated by 'humble' (https://github.com/rfc-st/humble), mentions analyzing HTTP response headers, security header grades (A-E), or asks for remediation of findings such as missing…

not rated 383 +1 changed 5d ago B SkillSpector: warn 107 tokens original MIT

depsguard

201

arnica/depsguard

Skill Claude CodeCodex

Install and run DepsGuard, a zero-dependency CLI that scans and fixes package manager configs (npm, pnpm, yarn, bun, uv) for supply chain security best practices.

not rated 382 +1 2mo ago A SkillSpector: warn 41 tokens original MIT

ahmadvh/octochains

Skill Claude CodeCodex

Analyzes authentication and authorization events for failed-login clustering, privilege-escalation chains, credential-stuffing patterns, and MFA-bypass indicators.

not rated 379 16d ago A 35 tokens

kesekit

203

cdppcorp/KESE-KIT

Plugin Claude Code

Bundles 8 skills · 1,025 tokens together

Security vulnerability assessment (EN/KO). CII infrastructure (560+), AI Security, Robot Security (IEC 62443), Space Security (satellite/GSaaS/supply chain, CMMC/NIS2), Secure Coding (JS/Python/Pseudo Code, 46 CWE). Use /kesekit-start, /kesekit-start-ko, /kesekit-check, /kesekit-fix, /kesekit-guide etc.

not rated 379 +2 7mo ago A tokens not measured original MIT

scopesentry

204

simon-p-j-r/LLM4Pentest

Skill Claude CodeCodex

A skill for managing ScopeSentry through MCP, including security projects, scanning tasks, scan templates, assets, and scanning nodes. ScopeSentry is a platform for organising and running security scans.

not rated 379 +4 2d ago A 0 tokens

vibe-pentest

205

ok-helloworld/vibe-pentest

Skill Claude CodeCodex

An AI skill for black-box penetration testing of web applications, meaning security testing without relying on the application's source code. It uses multiple agents across steps such as identifying the application, scanning entry points and APIs, crawling it, testing for vulnerabilities, and reviewing evidence.

not rated 377 +6 changed 1mo ago A 99 tokens AGPL-3.0

onionclaw

206

christinminor459/OnionClaw

Skill Claude CodeCodex

Search the Tor dark web, fetch .onion hidden service pages, rotate Tor identity, and run structured OSINT investigations. Use when user asks to search dark web, investigate .onion sites, find if data appeared on dark web, conduct Tor-based OSINT, look up dark web leaks, fetch any .onion URL, check for leaked…

not rated 375 25d ago B 82 tokens

oracle/netsuite-suitecloud-sdk

Skill Claude CodeCodex ✓ vendor

Platform-agnostic OWASP secure coding practices with JavaScript/Node.js patterns and NetSuite SuiteScript examples. Covers Open Worldwide Application Security Project (OWASP) Top 10 (2021), output encoding, injection prevention, CSP headers, file security, API hardening, AI agent security, DRY security patterns, and…

not rated 370 +2 7d ago A ✓ AI review Socket: passSnyk: passSkillSpector: warn 88 tokens UPL-1.0

auth

208

tableau/tableau-mcp

Cursor rule Cursor

Auth architecture, middleware chain, and auth-specific coding standards.

not rated 368 +5 today A 0 tokens original Apache-2.0

ywh

209

yeswehack/claude-kit

Plugin Claude Code

Bundles 3 skills, 1 hook · 189 tokens together

Produce triager-grade YesWeHack reports instead of AI slop: always-on drafting discipline plus three on-demand skills (write, triage, gotchas).

not rated 367 +10 2mo ago A tokens not measured GPL-3.0

chainlink-safe-fetch

210

dollspace-gay/chainlink

MCP server Claude CodeCodexCursor +2

MCP server "chainlink-safe-fetch" as configured in dollspace-gay/chainlink. Runs .claude/mcp/safe-fetch-server.py with python.

not rated 366 +1 2mo ago A tokens not measured original MIT

codeguard-security

211

cosai-oasis/project-codeguard

Plugin Claude Code

Bundles 4 skills · 207 tokens together

Security code review skill based on Project CodeGuard's comprehensive security rules. Helps AI coding agents write secure code and prevent common vulnerabilities.

not rated 364 +4 changed 1mo ago A tokens not measured

superagents-lab/xcode27-skills

Skill Claude CodeCodex

Audit and enable security-oriented Xcode build settings. Progressively enables compiler warnings, static analyzer checkers, and Enhanced Security features. Use when: user wants to secure their Xcode project, audit security settings, enable hardening, review security posture of build configuration, set up…

not rated 361 +5 5mo ago A Socket: passSnyk: pass 111 tokens

pr-council-review

213

ffroliva/gflow-cli

Skill Claude CodeCodex needs its repo

Multi-dimensional LLM council review of an open PR (default) or a local feature branch (§ 8 branch mode, invoked via /gflow:branch-review). Five baseline dimensions (correctness, quality, security, tests, memory-hygiene) plus adaptive dimensions per surface (transports / data / CLI / docs / auth / BDD / scripts /…

not rated 361 +11 changed 19d ago A SkillSpector: warn 125 tokens original MIT

exploit-xss

214

crazyMarky/pentest-skills

Skill Claude CodeCodex

Cross-site scripting (XSS) vulnerability detection and exploitation. Supports reflected XSS, stored XSS, DOM-based XSS, and blind XSS testing. Use this skill when user mentions XSS, cross-site scripting, script injection, or needs to test JavaScript injection in parameters, forms, headers, or DOM sources.

not rated 357 +5 5mo ago A SkillSpector: warn 71 tokens original Apache-2.0

threat-modeling

215

fr33d3m0n/threat-modeling

Skill Claude CodeCodex

Threat model, security audit, find vulnerabilities, check security of my app, risk assessment, penetration test prep, analyze attack surface, what could an attacker exploit. Use this skill whenever a user wants holistic security analysis of a codebase, application, or project. MUST be invoked instead of analyzing…

not rated 352 +2 5mo ago A 178 tokens original BSD-3-Clause

secureclaw

216

adversa-ai/secureclaw

Skill Claude CodeCodex

Security hardening toolkit for OpenClaw. Run audits, apply fixes, scan skills, monitor costs and memory integrity.

not rated 349 +1 6mo ago A 28 tokens

At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: