Security

26,960 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.

burp-scan

73

six2dez/burp-ai-agent

Skill Claude CodeCodex needs its repo

Burp Suite scanning via MCP tools — passive traffic analysis, active payload testing, OOB verification, and vulnerability reporting using Burp's proxy, HTTP sender, Collaborator, and scanner APIs. Use when the user has Burp Suite running with the AI Agent MCP server and wants to scan, test, or analyze web traffic…

not rated 1.6k +8 16d ago C SkillSpector: warn 87 tokens original MIT

akto-core-rules

74

akto-api-security/akto

Cursor rule Cursor

Akto is the fastest growing AI Security platform for your teams to secure AI agents, MCPs, LLMs, Agent skills, Gen AI apps in your organization.

not rated 1.5k +10 changed 2mo ago A 129 tokens original MIT

code-review

75

GWUDCAP/cc-sessions

Agent Claude Code

Use ONLY when explicitly requested by user or when invoked by a protocol in sessions/protocols/. DO NOT use proactively. Reviews code for security vulnerabilities, bugs, performance issues, and adherence to project patterns during context compaction or pre-commit reviews. When using this agent, you must provide files…

not rated 1.5k +1 10mo ago A 92 tokens original MIT

supabase

76

PentesterFlow/agent

Skill Claude Code

Supabase / PostgREST Row-Level-Security playbook — pull the anon (or leaked servicerole) key out of the frontend JS, map tables from the auto-generated OpenAPI spec, test anonymous RLS READ disclosures (PII/secret leaks), and anonymous RLS WRITE abuse (insert/update/delete — e.g. forging…

not rated 1.4k +12 2mo ago A SkillSpector: warn 120 tokens original Apache-2.0

mastg

77

ChiChou/grapefruit

Skill Claude CodeCodex

Autonomous mobile security audit aligned with OWASP MASTG v2. Performs checklist-driven analysis across MASVS categories: storage, crypto, network, platform, code, resilience, privacy. Exports structured markdown report with MASTG test references.

not rated 1.4k +1 changed 1mo ago A SkillSpector: warn 53 tokens original MIT

VibeSec-Skill

79

BehiSecc/VibeSec-Skill

Skill Claude CodeCodex

This skill helps Claude write secure web applications. Use this when working on any web application or when a user requests a scan or audit to ensure security best practices are followed.

not rated 1.4k +2 8mo ago C 40 tokens original Apache-2.0

sast-fileupload

80

utkusen/sast-skills

Skill Claude CodeCodex needs its repo

Detect insecure file upload vulnerabilities in a codebase using a three-phase approach: discovery (find all upload sites), batched verify (check extension bypass and related issues in parallel subagents, 3 sites each), and merge (consolidate batch results). Requires sast/architecture.md (run sast-analysis first).…

not rated 1.4k +5 14d ago A SkillSpector: pass 92 tokens original MIT

best-practices

81

open-gsd/gsd-pi

Skill Claude CodeCodex

Apply modern web development best practices for security, compatibility, and code quality. Use when asked to "apply best practices", "security audit", "modernize code", "code quality review", or "check for vulnerabilities".

not rated 1.4k +10 changed 1mo ago A SkillSpector: warn 49 tokens original MIT

setup-rate-limiting

82

qdhenry/Claude-Command-Suite

Command Claude Code

Command "setup-rate-limiting" from qdhenry/Claude-Command-Suite, covering setup rate limiting and instructions.

not rated 1.3k +2 8mo ago A 0 tokens

hunt-race-condition

83

uphiago/recon-skills

Skill Claude CodeCodex

Hunting skill for race condition vulnerabilities. Built from 12 public bug bounty reports including modern HTTP/2 single-packet attack cases (James Kettle DEF CON 2023 "Smashing the State Machine"; RyotaK / Flatt Security 10,000-request first-sequence-sync expansion 2024). Covers coupon double-redemption, gift-card…

not rated 1.3k +4 2mo ago A SkillSpector: warn 140 tokens original MIT

skill-release-gate

84

fancyboi999/ai-engineering-from-scratch-zh

Skill Claude CodeCodex

A release-checking skill for evaluating whether an agent skill bundle is complete, safe, correctly triggered, and portable to its target host.

not rated 1.3k +17 3d ago A SkillSpector: pass 49 tokens original MIT

xalgorix/xalgorix

Skill Claude CodeCodex

Implements data loss prevention policies using Microsoft Purview to protect sensitive information across Exchange Online, SharePoint, OneDrive, Teams, endpoint devices, and Power BI. The analyst configures sensitivity labels with encryption and content marking, creates DLP policies using built-in and custom sensitive…

not rated 1.3k +25 yesterday A SkillSpector: pass 148 tokens original Apache-2.0

attackgen-tabletop

86

mrwadams/attackgen

Skill Claude CodeCodex

Turn a MITRE ATT&CK/ATLAS threat group or case study — or a frontier AI agent deployed inside the organisation — into a full incident-response tabletop exercise (MSEL): scenario narrative, kill chain or agent threat scope, timestamped injects, discussion questions, and a detection-coverage scorecard, using the…

not rated 1.3k +1 changed 13d ago A SkillSpector: pass 155 tokens GPL-3.0

vibe-security

87

raroque/vibe-security-skill

Skill Codex

Audits codebases for common security vulnerabilities that AI coding assistants introduce in "vibe-coded" applications. Checks for exposed API keys, broken access control (Supabase RLS, Firebase rules), missing auth validation, client-side trust issues, insecure payment flows, and more. Use this skill whenever the user…

not rated 1.2k +28 7mo ago A Socket: passSnyk: pass 147 tokens original MIT

drupal

88

ASCIT31/Dark-Moon

Agent Claude Code

Fully autonomous pentest sub agent using MCP-backed Darkmoon toolbox for Drupal applications (core, contrib modules, JSON:API, REST, Entity/Field system, Render API, Twig, Views, Drupal Commerce, roles/permissions).

not rated 1.2k +33 changed 11d ago A 49 tokens GPL-3.0

vulnhunter-fix

90

capitalone/VulnHunter

Skill Claude CodeCodex

Automate vulnerability remediation from VulnHunter scan results using TDD. Parses VulnHunter findings, writes exploit demos proving each vulnerability, writes security tests that define correct behavior (RED), implements fixes to pass those tests (GREEN), and delivers via PR or fallback GitHub issue. Each PR includes…

not rated 1.2k +12 1mo ago A SkillSpector: warn 135 tokens original Apache-2.0

detection-signals

91

LinXiaoTao/FuckClaude

Skill Claude CodeCodex

A set of rules for detecting signals that may suggest a browser user is in China. It scans browser information locally and also reuses scoring functions in a server endpoint called /api/check.

not rated 1.1k +31 2d ago A SkillSpector: pass 69 tokens original MIT

llm-sandbox

92

vndee/llm-sandbox

MCP server Claude CodeCodexCursor +2

LLM Sandbox is a lightweight and portable sandbox environment designed to run large language model (LLM) generated code in a safe and isolated mode. Runs locally from the llm-sandbox Python package. Needs 12 environment variables to run.

not rated 1.1k +6 today A Socket: warn tokens not measured original MIT

hackingtool

93

AKCodez/hackingtool-plugin

Plugin Claude Code

Bundles 1 skill · 132 tokens together

183+ pentesting and OSINT tools (nmap, nuclei, amass, subfinder, httpx, sherlock, maigret, trufflehog, sqlmap, impacket, and more) wired into Claude Code as a single skill. Runs locally on any OS via native Bash, WSL, or purpose-built Docker images (instrumentisto/nmap, projectdiscovery/nuclei, caffix/amass, etc.).…

not rated 1.1k +11 1mo ago A tokens not measured

chAng-L19/codex-redteam-mode

Skill Claude CodeCodex

Compact operational boundary policy for durable red-team workflows. It does not route domains or decide workflow completion.

not rated 1.1k +2 28d ago A SkillSpector: pass 26 tokens original MIT

open-claw-skills

95

prompt-security/clawsec

Plugin Claude Code

Bundles 7 skills · 272 tokens together

open-claw-skills. A complete security skill suite for OpenClaw, Hermes, PicoClaw and NanoClaw agents (and variants). Protect your SOUL.md (etc') with drift detection, live security recommendations, automated audits, and skill integrity verification. All from one installable suite.

not rated 1.1k +5 yesterday A tokens not measured AGPL-3.0

vet-packages

96

safedep/vet

Cursor rule Cursor

Always use vet-mcp to vet any open source library package suggested by AI generated code before installation. Follow the rules below to use vet-mcp.

not rated 1.1k +2 yesterday A 74 tokens original Apache-2.0

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: