Security
Security agent skills give AI agents disciplined security workflows: code review for vulnerabilities, secret handling, dependency audits, and hardening checklists. Every skill on SkillMD also passes its own safety review before listing, with capability flags shown on each page.
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mte90 Skill DjangoComprehensive Django guide - security, ORM, PostgreSQL, GeoDjango, Django 6.0 features, admin extensions, middleware, authentication, sessions, and ecosystem tools
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mte90 Bundle Laravel SecuritySecurity standards for hardening Laravel applications.
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mte90 Bundle Typescript SecuritySecure coding practices for building safe TypeScript applications.
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mte90 Bundle Security StandardsUniversal security protocols for building safe and resilient software.
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mte90 Bundle Laravel Sessions MiddlewareExpert standards for session drivers, security headers, and middleware logic.
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christopheralphonse Skill Csp Bypass AdvancedAdvanced Content Security Policy bypass techniques. Use when XSS or data exfiltration is blocked by CSP and you need to find policy weaknesses, trusted endpoint abuse, nonce leakage, or exfiltration channels that CSP cannot block.
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christopheralphonse Bundle Security ReviewUse this skill when adding authentication, handling user input, working with secrets, creating API endpoints, or implementing payment/sensitive features. Provides scoped security checklist and patterns.
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iankiku Skill Audit(forwward) Aggressively audits and cleans a codebase — removes slop, dead code, and AI-generated noise; fixes DRY/SOLID violations; restructures toward the simplest correct implementation. One commit, no behavior changes. Use when the user says "audit the code", "clean up tech debt", "remove dead code", "deslop", "this codebase is a mess", or asks for a code-quality pass. Detects stack and applies idiomatic patterns. Works on full codebase or specific paths.
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iankiku Skill Harden(forwward) Project-agnostic adversarial hardening pass — security red-team, end-to-end observability, bottleneck removal, and anti-over-engineering. Triggers on "harden this", "red team this", "adversarial review", "find security holes", "add logging/traces so we can debug", or "find where it hangs/fails". Works on any project or codebase.
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iankiku Skill Review(forwward) Performs paranoid code review checking trust boundaries, data integrity, performance, race conditions, error handling, and OWASP security. Triggers on code review, pre-merge checks, security audit, bug hunting, or any request to review, audit, or check code quality.
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iankiku Skill Security(forwward) Implements authentication, authorization, encryption, HIPAA compliance, SOC 2 controls, and security hardening with defense-in-depth defaults. Triggers on auth, encryption, compliance, penetration testing, privacy, or any security concern.
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niekcandaele Skill ReviewerComprehensive code reviewer combining design review, architecture, coherence, hardening, and security analysis
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niekcandaele Bundle Setup EngineerReconcile this repository toward the opinionated "golden state" for agentic local development — a per-repo dev CLI, a thin justfile surface, a generated port-offset env contract, a four-file engineer skill, thin CI, and a doctor invariant-enforcer. Run /setup-engineer whenever you want to set up, audit, or repair a repo's local-dev tooling: a fresh repo with nothing, a half-built repo with organic scripts that needs consolidating, or a finished repo you just want to verify still conforms.
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the-hugin Skill Security BaselineSkill: Security Baseline
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the-hugin Bundle Differential ReviewSecurity-focused review of code changes (PRs, commits, diffs) with blast radius estimation and adversarial modeling. Seven-phase workflow from triage to final report. Adapted from Trail of Bits methodology.
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thettwe Skill FleetManage the fleet registry of local repos and show the cross-repo health dashboard (read-only). TRIGGER when the user says "show my fleet", "fleet dashboard", "health across all my repos", "org health view", "how are all my repos doing", "which of my repos are drifting", "audit all my repos", "run doctor on every repo", "add this repo to my fleet", "register my repos", "scan ~/Works for repos", "list my fleet", "remove <repo> from my fleet", "/nyann:fleet". Do NOT trigger on "watch all my repos" / "watch my PRs across repos" — that's `watch` (CI sentinel: remote PR/check state, not governance). Do NOT trigger on "fix drift across all my repos" / "retrofit the fleet" — that's `fleet-retrofit` (this skill never mutates a repo). Do NOT trigger on single-repo health ("is this repo healthy") — that's `doctor`.
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thettwe Bundle DoctorRun a read-only hygiene + documentation audit on the current repo. TRIGGER when the user says "is this repo healthy", "check hygiene", "audit this repo" (when they mean inspect, not remediate), "what's drifted", "run doctor", "run a health check", "audit docs", "check for doc drift", "what's broken in this project", "are the hooks still installed", "/nyann:doctor". Do NOT trigger on "fix this repo" / "remediate" / "bring it into compliance" — those are retrofit (audit + fix). doctor reports, never writes. Do NOT trigger on "what does this repo do" (that's a docs pointer, not a hygiene audit).
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thettwe Skill SuggestAnalyze a repository and suggest profile updates. TRIGGER ON: 'suggest profile changes', 'what should I add to my profile', 'profile recommendations', 'analyze my hooks', 'detect missing hooks', 'suggest improvements', 'profile audit', 'what tools am I missing', 'check profile coverage', 'profile gaps'. Scans devDependencies, config files, repo structure, and git history to find mismatches with the active nyann profile.
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thettwe Skill DiagnoseBundle a redacted, support-grade snapshot of the current nyann state for inclusion in a bug report or support request. Combines explain-state + doctor + git config (token-redacted) + installed hook contents + nyann user-config (token-redacted) + check-prereqs into a single JSON or human-readable summary. TRIGGER when the user says "nyann is broken", "nyann diagnose", "diagnose nyann", "diagnose this repo", "support bundle", "what's wrong with nyann", "help me file a bug report", "what should I include in a nyann bug report", "/nyann:diagnose". Do NOT trigger on "is this repo healthy" — that's `doctor` (read-only audit). Do NOT trigger on "what does nyann see here" — that's `explain-state` (lighter snapshot, no health, no hook contents). Do NOT trigger on "fix this repo" — that's `retrofit`.
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thettwe Skill RetrofitAudit an existing repo against a profile and offer to fix what's drifted. TRIGGER when the user says "retrofit this repo", "fix this repo's hygiene", "bring this repo into compliance", "remediate drift", "fix what's drifted", "make this repo match the profile", "my repo is half set up, finish it", "I already have some hooks but they're incomplete", "fill in the gaps", "upgrade this repo to nyann standards", "apply the profile to this existing repo". ALSO trigger when doctor finishes with drift (exit 4 or 5) and the user says "fix it", "remediate", "yes fix those", "go ahead and fix". Do NOT trigger on "is this repo healthy" / "check hygiene" / "audit docs" — those are doctor (read-only). Do NOT trigger on "set up this project" from scratch — that's bootstrap-project.
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thettwe Skill Check PrereqsSurvey the machine and report which nyann features are usable right now. TRIGGER when the user says "is my machine ready for nyann", "what do I need to install", "check my setup", "do I have the right tools", "check prereqs", "audit my environment", "new machine, what's missing", "I'm on a new machine", "install nyann prereqs", "/nyann:check-prereqs". Do NOT trigger on general "what is nyann" questions — those want a docs pointer, not a machine survey. Do NOT trigger when the user is already mid-bootstrap — let the bootstrap-project skill handle that case and emit its own skip records for missing stack tools.
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qaia-project Bundle Traffic ReplayIngest a user-provided HAR file (or equivalent captured HTTP traffic export) and derive non-regression test conditions -- observed status, response shape, significant headers, timing -- from real request/response pairs, with mandatory PII/secret masking before any write. Never captures live traffic, never runs a proxy, never sends a network request itself. Use when the user has a HAR export and wants what actually happened turned into regression conditions, not a coverage test book.
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qaia-project Skill Security Surface ChecksSecurity Surface Checks
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qaia-project Bundle Security SurfaceGenerate and run risk-based passive security-surface checks (CT-SEC - assets and threats identified first, then auth boundaries, IDOR, error handling, user enumeration prioritized by risk) against an authorized self-hosted app, plus optional OWASP ZAP baseline. Use for security coverage. Authorized self-hosted targets only.
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aka-kika Skill Docs UpdateUse when the user needs to update, improve, audit, or maintain documentation in a project. Covers READMEs, changelogs, API docs, inline comments, missing docs, and overall documentation quality. Works well before releases or when documentation has fallen behind the code.
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arndvs Skill ExploreDeep codebase exploration using parallel subagents. Use when asked to 'explore', 'understand', 'investigate', 'map out', 'how does X work', or 'audit' a part of the codebase.
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arndvs Skill DocumentWrite, update, or audit documentation. Use when asked to 'document this', 'write docs', 'update the README', 'add JSDoc', 'write a changelog', or 'create an ADR'.
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arndvs Bundle Error AuditUse when repeated Claude Code session errors need analysis; scans session transcripts for errors, clusters by root cause, and suggests remediations.
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arndvs Skill Pr PreflightExhaustive pre-PR audit that front-runs code review tools by catching the same issues Copilot/reviewers find iteratively, across any stack.
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arndvs Skill Codebase AuditRuthless codebase audit reporting only real problems. Use when asked to 'audit', 'code audit', 'codebase audit', 'review code', 'find bugs', or 'code review'.
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arndvs Skill Compliance AuditAuto-invoke after any do-work, tdd, systematic-debugging, or review-pr-copilot task completes to review the diff against active rules and skills, flag violations, update the skill if a gap is found, and close the loop between 'rule was loaded' and 'rule was followed'.
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arndvs Skill Performance AuditDeep system and codebase performance audit — memory leaks, process bloat, network latency, and runtime profiling. Use when asked to 'performance audit', 'why is everything slow', 'find memory leaks', 'check system health', 'diagnose slowness', or 'perf check'.
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arndvs Skill NPM Security AuditLayered security audit on npm/pnpm/yarn projects before installing or running. Use to vet a GitHub repo, npm package, or local project before npm install/start/npx.
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aws-samples Bundle Ipa ComposeCompose a deployment from stack skills and generate executable artifacts (Makefiles, security disposition). Use when the user says 'compose', 'generate deployment', or invokes /ipa-compose.
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aws-samples Skill Ipa SecurityProvision or update centralized security infrastructure (IAM roles) for an IPA project. Use when the user says 'security', 'set up security', 'IAM roles', or invokes /ipa-security.
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captainflasmr Skill Elisp ReviewReview Emacs Lisp (elisp) packages for bugs, style/convention violations, and optimisation opportunities. Use this skill whenever the user asks to review, audit, check, or analyse an elisp or Emacs Lisp package, file, or set of files. Trigger on phrases like "review my package", "check my elisp", "audit this emacs package", "look for bugs in my lisp", "optimise my elisp", or any time the user shares .el files and wants feedback. Always use this skill when .el files are involved and improvement is the goal — even if the user just says "what do you think of this?" about an elisp file.
Frequently asked questions
What are Security agent skills?
Security agent skills give AI agents disciplined security workflows: code review for vulnerabilities, secret handling, dependency audits, and hardening checklists. Every skill on SkillMD also passes its own safety review before listing, with capability flags shown on each page.
Which Security skills are most installed?
Popular Security skills on SkillMD right now include security-baseline, differential-review, django. Rankings shift as installs change; sort this page by "Most installs" for the live list.
Do Security skills work with Claude Code and Cursor?
Yes. Every skill here ships as a SKILL.md file, an open format that works in Claude Code, Claude.ai, Cursor, Codex, Windsurf, and 60+ other agents. Install one with npx skillmds@latest add <owner>/<name>, or copy the file into your agent's skills directory.