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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tools-only Bundle 2134 Javascript Express Web Server Security 8496b00dExpress (Node.js) Web Security Spec (Express 5.x / 4.19.2+, Node.js LTS)
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tools-only Bundle 2634 Javascript Express Web Server Security 427835cbExpress (Node.js) Web Security Spec (Express 5.x / 4.19.2+, Node.js LTS)
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tools-only Bundle 841 Reference Set 02 Transaction Authorization 0461d44f<!-- Threat Modeling Skill | Version 3.0.0 (20260201a) | https://github.com/fr33d3m0n/threat-modeling | License: BSD-3-Clause -->
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tools-only Bundle 848 Reference Set 03 Ldap Injection Prevention 403c288a<!-- Threat Modeling Skill | Version 3.0.0 (20260201a) | https://github.com/fr33d3m0n/threat-modeling | License: BSD-3-Clause -->
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tools-only Bundle 859 Reference Set 05 Dom Clobbering Prevention 075c527b<!-- Threat Modeling Skill | Version 3.0.0 (20260201a) | https://github.com/fr33d3m0n/threat-modeling | License: BSD-3-Clause -->
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tools-only Bundle 890 Reference Set Ext 12 Dependency Management A8958ef1<!-- Threat Modeling Skill | Version 3.0.0 (20260201a) | https://github.com/fr33d3m0n/threat-modeling | License: BSD-3-Clause -->
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tools-only Bundle 892 Reference Set Ext 12 Supply Chain Security 1e87a85c<!-- Threat Modeling Skill | Version 3.0.0 (20260201a) | https://github.com/fr33d3m0n/threat-modeling | License: BSD-3-Clause -->
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tools-only Bundle 418 Reference Set 05 Prototype Pollution Prevention 91655ed3<!-- Threat Modeling Skill | Version 3.0.3 (20260209a) | https://github.com/fr33d3m0n/threat-modeling | License: BSD-3-Clause -->
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tools-only Bundle 418 Reference Set 05 Prototype Pollution Prevention B6fcf885<!-- Threat Modeling Skill | Version 3.0.2 (20260204a) | https://github.com/fr33d3m0n/threat-modeling | License: BSD-3-Clause -->
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tools-only Bundle 880 Reference Set 09 Microservices Security 3114af10<!-- Threat Modeling Skill | Version 3.0.0 (20260201a) | https://github.com/fr33d3m0n/threat-modeling | License: BSD-3-Clause -->
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tools-only Bundle 835 Reference Set 01 Multifactor Authentication 1f1ea8bd<!-- Threat Modeling Skill | Version 3.0.0 (20260201a) | https://github.com/fr33d3m0n/threat-modeling | License: BSD-3-Clause -->
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adobe Bundle Commerce App ReviewUse when validating an App Builder app before submitting to Adobe Exchange, or when the user mentions Adobe Commerce app compliance, extension review, marketplace submission, or Adobe Exchange listing. Checks security requirements, project structure, documentation completeness, and dependency health; reports MUST-have blockers and NICE-to-have recommendations and walks through each finding interactively.
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sandbaseai Skill Code ReviewReviews a supplied code path or diff for correctness, security, maintainability, and style without executing or modifying it
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redpanda-data Bundle Rpk Registry 2Manage schemas, subjects, compatibility levels, modes, and contexts in the Redpanda Schema Registry via the `rpk registry` CLI (alias `rpk sr`). Use when registering or fetching Avro/Protobuf/JSON schemas, listing or deleting subjects and schema versions, setting BACKWARD/FORWARD/FULL/NONE compatibility levels, changing registry mode (READONLY/READWRITE/IMPORT), or working with schema contexts for namespace isolation. Also covers Enterprise-licensed registry features: Schema Registry Authorization and server-side Schema ID Validation. For granting ACLs or RBAC on registry resources, see /redpanda:rpk-security; for producing or consuming records with schema encoding/decoding, see /redpanda:rpk-topic.
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theexperiencecompany Skill PerformanceOptimize web performance for faster loading and better user experience. Use when asked to "speed up my site", "optimize performance", "reduce load time", "fix slow loading", "improve page speed", or "performance audit".
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theexperiencecompany Skill Logging Best PracticesGAIA's wide-event logging - how to instrument code with log.set/set_ns/audit, wide_task boundaries, and the traps that silently lose context
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theexperiencecompany Skill Gmail Clean InboxIntelligently clean Gmail inbox - audit labels, identify patterns, batch categorize, archive old messages, present cleanup summary
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karthick-ramachandran Skill Plan FeatureTurn approved requirements into an implementation plan with tasks and a test plan. Use when planning a substantial feature from approved requirements before any implementation begins. Skip for small local changes (implement directly with focused tests), security reviews, and convention checks.
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karthick-ramachandran Skill Conventions AdherenceCheck a change against the repository's naming conventions and canonical vocabulary instead of reinventing patterns. Use when reviewing a finished change, or before finishing one, to verify it reuses what CONVENTIONS.md names. Skip for planning work, security reviews, and writing new tests.
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erikdarlingdata Skill MaintenanceQuarterly maintenance pass (every 1-3 months) — dependency/security audit, build health, and repo hygiene for PerformanceMonitor and PerformanceStudio
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getlago Bundle Cve DoctorTriage a CVE / Dependabot alert in a JS/TS project and recommend the least-invasive fix. Walks the dependency chain, identifies the parent that blocks the patch, flags unmaintained packages, and only suggests a package-manager override as a last resort with explicit user confirmation. TRIGGER when the user asks to "fix a CVE", references a Dependabot alert URL (github.com/*/security/dependabot/*), mentions a CVE-YYYY-NNNN or GHSA-* identifier, or asks how to resolve a vulnerable transitive dependency.
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priyothana Bundle Security And HardeningHardens code against vulnerabilities. Use when auditing an input handler for vulnerabilities, when handling user input, authentication, data storage, or external integrations, or when checking a login flow is safe against the OWASP Top Ten. Use when building any feature that accepts untrusted data, manages user sessions, or interacts with third-party services. Use when auditing dependencies for known vulnerabilities, triaging package-manager audit findings, or assessing supply-chain risk in a new package. Use when personal data or privacy compliance (GDPR, CCPA) is involved.
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jesse-merhi Skill Test AuditPlan and audit test portfolios before creating, changing, or removing tests or test infrastructure; challenge missing, duplicate, brittle, wrongly placed, ownerless, and dangerous coverage.
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jesse-merhi Skill Pr Rubbish AuditAudit PR diffs for unrelated artifacts, noisy comments, deletions, generated drift, and stray refactors.
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thecolliery Bundle Scale CanaryPerformance complexity and resource allocation canary — checks for O(N^2) loops, database N+1 query patterns, memory leaks (unbounded collections), and blocking calls in main event loop. Triggers on keywords: "/scale-canary", "scale-canary", "performance audit", "scale audit". Use when writing loops over growing data, DB queries, caches, or async/event-loop code.
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thecolliery Bundle Gold StandardWorld-class completeness audit — score a project's rules/standards/features against best-in-class exemplars, name the gaps, fill missing rules, adopt as binding, then offer to conform existing code. Triggers on keywords: "/gold-standard", "gold-standard", "audit rules", "are we world-class", "fill gaps", "complete our rules", "conform old code".
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thecolliery Bundle Resilience AuditFailure-mode audit (FMEA for software) — for each way the system can fail (network, storage, partial completion, crash, concurrency, bad input), check whether code DETECTS, HANDLES, RECOVERS, and COMMUNICATES it. Triggers on: "/resilience-audit", "resilience-audit", "FMEA audit". Use when touching network, storage, async, retry, or rollback paths. Flags data loss, silent-success-on-failure, missing rollback/retry/idempotency. Reports; does not fix unless asked.
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thecolliery Bundle Telemetry CanaryObservability and structured logging canary — checks for structured logs (JSON), OpenTelemetry metrics/traces, proper error stack traces, and flags empty catches or silent log swallowing. Triggers on keywords: "/telemetry-canary", "telemetry-canary", "observability audit", "structured logging". Use when adding or changing logging, metrics, tracing, or error-handling code.
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thecolliery Bundle Supply Chain AuditSoftware supply chain audit — dependencies (CVEs, maintenance, licenses, transitive risk), build/CI integrity (SHA-pinned actions, lockfile, CI-only release), artifact integrity (checksums, signing, SBOM). Triggers on: "/supply-chain-audit", "supply-chain-audit", "dependency audit". Run before adding a dep, before a release, or for periodic review. Reports; does not change deps unless asked.
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thecolliery Bundle Testability CanaryTestability and design decoupling canary — checks for tight coupling, lack of Dependency Injection (DI), hardcoded constructors, Single Responsibility Principle (SRP) violations, and mockability gaps. Triggers on keywords: "/testability-canary", "testability-canary", "testability audit", "decoupling". Use when refactoring coupling, introducing DI, or making code unit-testable.
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64x-lunicorn Bundle Design HTTP APIDesigns or changes an HTTP API contract against fixed REST guidelines, covering resources, methods, status codes, problem details, pagination, concurrency, security and versioning, and keeps its OpenAPI document, Swagger UI and Bruno collection in the same change. Use when endpoints or routes are designed, added, changed or removed, when an OpenAPI document or Bruno collection is written, when an API change is reviewed, or when a feature needs a backend endpoint even though nobody says "API".
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64x-lunicorn Bundle Write Community FilesWrites a project's community files from fixed templates on GitHub, GitLab, Forgejo or without a forge, the pull or merge request template, CODEOWNERS, SECURITY.md, CONTRIBUTING.md and LICENSE, keeps the project's own sections on re-runs and reports drift. Use when a project gets its community files for the first time, when they drifted from the house templates, or when the license, the code owners or the CI checks changed.
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kerpopule Skill Jev SetupUse when Jev is not working yet, a Jev tool reports no_key or auth_failed, or the person asks to connect or fix Jev. Gets their TypeSafe or OpenRouter key into the secret store, unseen by you.
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gremelinn0 Skill Skill HubManage your Claude Code skills via a self-hosted visual hub. Regenerate the skills/CLAUDE.md indexes, serve the marketplace page locally or on Vercel, consume the exported decisions JSON to apply move/duplicate/archive/store/note actions across your repos. Triggers — "/skill-hub", "ouvre mon hub de skills", "ménage skills", "trier mes skills", "audit skills perso".
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microsoft Bundle Shadow Frog DreamRun autonomous experimentation while the user is AFK. Uses 6 investigation categories (investigation, bug hunting, feature design, refactoring, optimization, security audit) to systematically discover non-obvious behaviors. Every task is an experiment — implement in worktrees, commit to persistent dream branches, and push to the configured remote. Dreams compound across sessions: future experiments branch from prior dream branches, building a tree of progressively deeper work. Invoke when the user is AFK or asks for a dream run.
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nudgebee Bundle Console AuditConsole / Performance Audit
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 2134-javascript-express-web-server-security_8496b00d, 2634-javascript-express-web-server-security_427835cb, 841-reference-set-02-transaction-authorization_0461d44f. 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.