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.

s-gw

889

sgateway/s-gw

Skill Claude CodeCodex

Use s-gw when working with credentials, private keys, API tokens, SSH identities, browser credentials, or other sensitive data in agentic coding workflows. Prefer typed handles and local approved execution over exposing raw secret values to a model.

not rated 15 5d ago A 51 tokens original Apache-2.0

gh-guard

890

sbom-tool/gh-guard

Plugin Claude Code

Bundles 14 skills, 5 commands · 353 tokens together

CI/CD supply chain hardening for Rust projects — Trusted Publishing, SLSA provenance, Scorecard, cargo-deny, and more.

not rated 15 7mo ago A tokens not measured original MIT

gleicon/mcp-osv

Cursor rule Cursor

Before incorporating any external dependency, verify provenance through official registries: -- npm.org (JavaScript/TypeScript packages) -- crates.io (Rust packages) -- pypi.org (Python packages) -- GitHub (source repositories).

not rated 15 10mo ago A 910 tokens

sidclaw-governance

892

sidclawhq/platform

Skill Claude CodeCodex

Add policy evaluation, human approval, and audit trails to any tool. Powered by SidClaw.

not rated 15 18d ago A 27 tokens original Apache-2.0

mailfathom

893

Krzysztof318/MailFathom

MCP server Claude CodeCodexCursor +2

Security-first, self-hosted email archive with search, cited answers, and sending for AI agents. Remote server at {mailfathom_host}.

not rated 15 26d ago A tokens not measured original AGPL-3.0

sigil-preflight

894

Ju571nK/sigil

Skill Claude CodeCodex

Before running a risky shell command, check it with Sigil's assess and refuse anything Sigil would block. Use whenever you are about to execute a destructive, privileged, or unfamiliar command.

not rated 15 7d ago A ✓ AI review 46 tokens original Apache-2.0

skill-checker

895

maludb-ed/skill-safety-checker

Plugin Claude Code

Bundles 1 skill · 79 tokens together

Security-audits installed Claude Code skills and marketplace plugins for data capture, secret exfiltration, prompt injection, and malicious code. Always leads with a disclaimer that detection cannot be guaranteed complete.

not rated 15 2mo ago A tokens not measured

osquery

896

kousen/OsqueryMcpServer

Skill Claude Code

System diagnostics using osquery. Use when asked about CPU usage, memory consumption, network connections, running processes, disk I/O, fan speeds, temperatures, or system security. Triggers: "why is my computer slow", "what's using memory", "what's using CPU", "network connections", "suspicious processes", "system…

not rated 15 4mo ago A 126 tokens original MIT

palo-alto-mcp

897

cdot65/pan-os-mcp

MCP server Claude CodeCodexCursor +2

MCP server "palo-alto-mcp" as configured in cdot65/pan-os-mcp. Runs locally from the palo-alto-mcp Python package.

not rated 15 1y ago A tokens not measured

mitre-mcp

898

Montimage/mitre-mcp

MCP server Claude CodeCodexCursor +2

MCP server for MITRE ATT&CK framework. Runs locally from the mitre-mcp Python package.

not rated 15 7d ago A tokens not measured original MIT

code-audit-system

899

UserB1ank/code-audit-system

Skill Claude CodeCodex

CVE-oriented multi-agent code audit system. Use when user provides a git repository URL for vulnerability discovery with the goal of submitting CVEs. This skill orchestrates subagents to find exploitable vulnerabilities (RCE, SQLi, Auth Bypass, etc.), write weaponized POCs, and generate CVE-ready reports. ALWAYS use…

not rated 15 5mo ago A 97 tokens

prompt-armor

900

prompt-armor/prompt-armor

Skill Claude CodeCodex

Detect prompt injection, jailbreaks, and adversarial attacks in LLM inputs before processing. 5 analysis layers, F1 84.4% internal / 98.87% external, 24ms, runs offline.

not rated 15 3d ago B 50 tokens original Apache-2.0

blackbox-pentest

902

yanglittlecat/blackbox-pentest

Skill Codex

A set of rules for carrying out authorized black-box penetration tests, where the tester examines a system without access to its source code. It defines testing boundaries, safety limits, and the evidence needed to report a vulnerability.

not rated 15 changed 1mo ago A 198 tokens

pqc-tools

903

quantakrypto/pqc-tools

MCP server Claude CodeCodexCursor +2

Scan code for quantum-vulnerable cryptography and get NIST post-quantum migration guidance. Runs locally from the @quantakrypto/mcp npm package.

not rated 15 23d ago A tokens not measured original Apache-2.0

circom-auditor

904

zksecurity/zk-skills

Skill Codex

Audit Circom circuits for soundness, completeness, privacy, and constraint bugs. Use when the user asks to audit, review, check, or find vulnerabilities in Circom code, or when they ask to run circom-auditor on a repo or specific .circom files.

not rated 15 3mo ago A 63 tokens original MIT

osint-investigation

905

sumba101/OSINT-AI-Agent

Skill Claude Code

OSINT investigation toolkit for profiling individuals. Uses Holehe for email-to-account discovery, Sherlock for username-to-social-media mapping, and GHunt for Gmail account intelligence. All tool outputs are saved to files for analysis.

not rated 15 9mo ago A 48 tokens original MIT

chief-wiggum

906

ant4g0nist/ChiefWiggum

Plugin Claude Code

Bundles 7 commands, 3 hooks · 56 tokens together

Iterative vulnerability hunter with four-phase explore/deep-dive methodology built on Ralph Wiggum's self-referential loop pattern.

not rated 15 8mo ago A tokens not measured original MIT

dependency-track

907

julianobarbosa/claude-code-skills

Skill Claude CodeCodex

Comprehensive guide for Dependency-Track - Software Composition Analysis (SCA) and SBOM management platform. USE WHEN deploying Dependency-Track, integrating with CI/CD pipelines, configuring vulnerability scanning, managing SBOMs, setting up policy compliance, troubleshooting installation issues, or working with the…

not rated 15 yesterday A SkillSpector: warn 62 tokens original MIT

bug-hunting

908

m4vic/bug-hunting

Skill Claude CodeCodex

Bug bounty hunting and penetration testing skills for Claude, Codex, and other agentic AI tools.

not rated 15 +1 2mo ago A 24 tokens original MIT

anatoly505/ios-reverse-skills

Cursor rule Cursor

Use this rule whenever the user asks to extract, analyze, or reverse engineer an iOS app — IPA, .app bundle, Mach-O, .dylib, or .framework.

not rated 15 6mo ago A 0 tokens original Unlicense

prodcheck-review

910

FarzamHabibi/pre-production-checklist

Skill Claude CodeCodex

Review this codebase against the prodcheck pre-production checklists — security, performance, scale, integrations, post-launch readiness and people. Use when asked to check whether a project is ready to ship, to audit an area before launch, or to work through a specific checklist. Produces evidence with file:line…

not rated 15 changed 18d ago A 72 tokens

outrider-recon

911

Ap6pack/outrider-recon

Plugin Claude Code

Bundles 11 skills · 614 tokens together

Claude-native, governed offensive-OSINT and external attack-surface platform for authorized security teams: multi-agent recon across web/API, identity, cloud, secrets, and people/breach intelligence, with deterministic scope, evidence, and approval controls, a governed agent-to-agent orchestrator, and human-reviewed…

not rated 15 changed 1mo ago A tokens not measured

hex-review

912

grimoire-rs/grimoire

Skill Claude Code

Tiered adversarial review orchestrator for a working tree, branch diff, pull request, or plan/markdown artifact before it lands on main — a staged reviewer panel (spec, quality, security, performance, docs), root-cause analysis, and a cross-model adversarial pass (codex, medium and up) scale with diff size via tier…

not rated 15 changed 1mo ago A 189 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: