Security skills

16,964 tagged Security, measured the same way as everything else here.

Browse within: cybersecurity 490bug-bounty 284agent 228generative-ai 179LangChain 176hacking 175autonomous-pentesting 139cloud-security 123skills 121claude-ai 118redteam 115LLM 107security-audit 106cors-exploitation 90

code-review

721

liubf21/ds-forge

Skill Claude Code

Review code changes for security, performance, and style issues.

not rated 4 1mo ago A 15 tokens original MIT

re-autopilot

722

telagod/pi-moke

Skill Claude CodeCodex

An authorised reverse-engineering workflow for examining local software samples and recovering how they work. Reverse engineering means studying compiled or packaged software, such as an APK, ELF, PE, or firmware image, to infer its logic.

not rated 5 4d ago A 140 tokens

proprietary-leak-scan

723

igor-elbert/ctobot

Skill Claude CodeCodex

Use before committing to the public CTObot repo to catch company-specific or proprietary content that has drifted into the public files (AGENTS.md, SOUL.md, docs/, skills/, README). The agent reads the diff (or all files) and reasons about whether the content is generic and shareable or specific to our company…

not rated 5 1mo ago A 108 tokens original MIT

skill-audit

724

ChuckNomis/skill-audit

Skill Claude CodeCodex

Scans Claude Code skills for security risks before installation. Checks for prompt injection, credential harvesting, exfiltration patterns, hooks, excessive permissions, and settings modification. Supports GitHub URLs, local paths, and bulk scanning. Use when asked to audit, scan, or check a skill for malware or…

not rated 5 6mo ago A 67 tokens original MIT

ctf

725

guaidao2/CTF-SKILL

Skill Claude CodeCodex

A Capture The Flag, or CTF, security-competition assistant covering web attacks, binary exploitation, reverse engineering, cryptography, forensics, blockchain, and cloud security.

not rated 6 16d ago A 177 tokens original Apache-2.0

variant-analysis

726

chenxihuang1028-a11y/variant-analysis

Skill Claude CodeCodex

Find similar vulnerabilities and bugs across codebases using pattern-based analysis. Use when hunting bug variants, building CodeQL/Semgrep queries, analyzing security vulnerabilities, or performing systematic code audits after finding an initial issue.

not rated 5 1mo ago A 45 tokens CC-BY-SA-4.0

mac-security-audit

727

yanis7774/mac-security-audit-skill

Skill Claude CodeCodex

Run a comprehensive READ-ONLY macOS security audit and triage the findings. Checks open/listening ports and external exposure, firewall + stealth, SSH and remote access (Screen Sharing, ARD), VPN/tunnels (Tailscale, WireGuard, reverse SSH), persistence (LaunchAgents/Daemons, cron, login hooks, shell rc, BTM /…

not rated 5 2mo ago B 324 tokens original MIT

init

728

bnet47/codexicon

Skill Claude CodeCodex needs its repo

Configure an uninitialized project from the active SPEC.md contract and verify the local stack.

not rated 5 changed 3d ago A 19 tokens original MIT

vt-sentinel

729

king-tero/VT-sentinel

Skill Claude CodeCodex

Security scanner using VirusTotal. Use when the user asks to scan a file for malware, check if a downloaded file or script is safe, verify a file hash against threat intelligence, or assess the security of any file. Returns both antivirus engine detections AND AI-powered Code Insight analysis (when available) in a…

not rated 5 5mo ago C 70 tokens original MIT

defensive-programming

730

Aibier/claude-em-toolkit

Skill Claude Code

Use when writing or reviewing code that crosses a trust boundary (user input, external APIs, file/network/DB I/O) — guards against invalid input, injection, unsafe failure modes, and missing validation at the edges without over-defending internal code.

not rated 5 3mo ago A 55 tokens original MIT

agent-governance-lord

733

m3taz-ahmed/ai-globals

Skill Claude CodeCodex

Lord skill for governing AI coding agents at runtime — gateway interception, agent/flow/model allowlisting, and MCP-server-as-securable. The control layer between an agent's decision and its real-world action.

not rated 5 changed 5d ago A 49 tokens original MIT

convex-authz

734

get-convex/convex-codex-plugin

Skill Claude CodeCodex

Audit and harden a Convex app's authorization: identity-from-arg impersonation, missing per-document ownership checks, and public queries leaking PII/financial data by a client-supplied id — the single largest real-defect cluster measured against generated Convex backends (44 of 214). Runs a deterministic scan for the…

not rated 5 14d ago A 139 tokens

audit-agent-traces

735

mumuchongchongchong/security-skills

Skill Codex

Offline reconstruction and security audit of agent execution traces from JSON, JSONL, or pasted logs. Use when Codex needs to review user input, model planning, tool calls, tool results, approvals, and final answers for prompt injection, unauthorized tools, secret exposure, missing approval, repeated-call loops, or…

not rated 5 1mo ago A 73 tokens original MIT

withcrux/agentHack-skills

Skill Claude CodeCodex

Analyze JSON Web Tokens (JWTs) for common security vulnerabilities including algorithm confusion attacks (RS256 to HS256), none algorithm bypass, weak secret brute-forcing, and claim manipulation. Practice in isolated lab environments to understand authentication bypass and privilege escalation via token forgery.

not rated 5 5mo ago A 62 tokens

ctf-pwn

738

dailyyarn/CTF-agent

Skill Claude Code

Provides binary exploitation (pwn) techniques for CTF challenges. Use when exploiting buffer overflows, format strings, heap vulnerabilities (House of Orange, Spirit, Lore, Apple 2, Einherjar, tcache stashing unlink), race conditions, kernel bugs, ROP chains, ret2libc, ret2dlresolve, shellcode, GOT overwrite…

not rated 5 5mo ago A 137 tokens original MIT

newcore-network/opencore-ai-skills

Skill Claude CodeCodex

OpenCore framework best practices - bootstrap, controllers, imports, security, events, adapters, validation, runtime constraints. Use this skill when writing, reviewing, refactoring, or explaining code built with @open-core/framework and related OpenCore adapters. Trigger on any question about OpenCore, CitizenFX…

not rated 5 5mo ago A 107 tokens

yidun-skill-sec

740

yidun/yidun-skill-sec

Skill Claude CodeCodex

Intelligent code security scanner with hybrid local-cloud detection. Fingerprints packages, runs static behavioral analysis, and consults cloud threat intelligence (enabled by default, can be disabled) for confidence scoring.

not rated 5 6mo ago C 46 tokens

jinyimeng01/net-code-audit-skill-master

Skill Claude CodeCodex

A security-audit topic for unsafe deserialization. Deserialization turns stored or received data back into program objects, and unsafe handling can create security risks.

not rated 5 4mo ago A 0 tokens MulanPSL-2.0

g-greatdevaks/mcp-dev-summit-blr-2026

Skill Claude CodeCodex

Detects data exfiltration, lateral movement, and crypto-mining anomalies from ExamplePay observability signals (logs, metrics, traces). Returns a structured ThreatSignal with a confidence score (0.0–1.0).

not rated 5 1mo ago A 53 tokens original Apache-2.0

nmap-mcp

743

sbmilburn/nmap-mcp

Skill Claude CodeCodex

Network scanning MCP server wrapping nmap. Provides 14 purpose-built tools for host discovery, port scanning (SYN/TCP/UDP), service & OS detection, NSE script execution, and vulnerability scanning. Returns structured JSON output. Includes scope enforcement (CIDR allowlist), audit logging, and scan persistence. Use…

not rated 5 6mo ago A 83 tokens original MIT

strm-mapping

744

austinsonger/GRC-Mapping-Analyst

Skill Codex

Use when asked to map, crosswalk, align, compare, or gap-analyze any two cybersecurity frameworks, control catalogs, or regulatory requirements using NIST IR 8477 Set-Theory Relationship Mapping (STRM). Triggers on terms like "map controls", "crosswalk", "framework alignment", "gap analysis", or producing a STRM CSV…

not rated 5 2mo ago A 79 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: