Trending
Apple Design @emilkowalski 
Code Reviewer @alirezarezvani 
Design Taste @keyargo 
Frontend Design @anthropic 
Using Superpowers @obra 
Modern Web Guidance @googlechrome 
SEO @affaan-m 
Caveman — Compress @juliusbrussee 
Frontend Design @seb1n 
Vercel Optimize @vercel-labs 
Reverse Skill Router @zhaoxuya520 
Continual Learning @microsoft Senior Backend @alirezarezvani Skill Creator @anthropic 
Security Audit @cloudflare-security-audit Canvas Design @anthropic 
Aspnet Core @openai Official Agent Skills
anthropic Frontend Design
Guides distinctive, intentional visual design for new UI or existing interfaces, covering aesthetic direction, typography, and avoiding templated defaults.
158k · bundle
anthropic DOCX
Create, read, edit, and manipulate Word documents (.docx files) with formatting, tables, images, and tracked changes.
158k · bundle
anthropic PPTX
Create, read, edit, and convert PowerPoint (.pptx) files with design guidance and visual QA workflows.
158k · bundle
anthropic Canvas Design
Creates visual art in .png and .pdf documents by first generating a design philosophy and then expressing it on a canvas.
158k · bundle
anthropic Skill Creator
Create new skills, modify existing ones, and measure their performance through iterative evaluation and benchmarking.
158k · bundle
anthropic Web Artifacts Builder
Creates elaborate, multi-component HTML artifacts using React, Tailwind CSS, and shadcn/ui for complex frontend projects.
158k · bundle
anthropic XLSX
Create, edit, and analyze spreadsheet files (.xlsx, .xlsm, .csv, .tsv) with formulas, formatting, and financial modeling conventions.
158k · bundle
anthropic Theme Factory
Apply consistent, professional color palettes and font pairings to presentation slide decks and other artifacts using pre-set themes or custom on-the-fly generation.
158k · bundle
cloudflare-security-audit Security Audit
Finds exploitable vulnerabilities in codebases through a structured multi-phase audit covering recon, hunting, validation, and reporting.
· bundle
microsoft Azure AI
Integrate with Azure AI services including Search, Speech, OpenAI, and Document Intelligence for search, transcription, OCR, and text-to-speech tasks.
2.7k · bundle
obra Using Superpowers
Ensures skills are invoked before any response, including clarifying questions, and establishes how to find and use skills.
247k · bundle
anthropic Algorithmic Art
Create algorithmic art by first writing a generative philosophy, then expressing it as p5.js sketches with seeded randomness and interactive parameter exploration.
158k · bundle
anthropic PDF
Read, extract, merge, split, rotate, watermark, encrypt, and create PDF files using Python libraries and command-line tools.
158k · bundle
github Game Engine
Build web-based games and game engines using HTML5 Canvas, WebGL, and JavaScript with frameworks like Phaser, Three.js, and Babylon.js.
36.2k · bundle
Top Agent Skills
anthropic Frontend Design
Guides distinctive, intentional visual design for new UI or existing interfaces, covering aesthetic direction, typography, and avoiding templated defaults.
158k · bundle
anthropic DOCX
Create, read, edit, and manipulate Word documents (.docx files) with formatting, tables, images, and tracked changes.
158k · bundle
anthropic PPTX
Create, read, edit, and convert PowerPoint (.pptx) files with design guidance and visual QA workflows.
158k · bundle
anthropic Canvas Design
Creates visual art in .png and .pdf documents by first generating a design philosophy and then expressing it on a canvas.
158k · bundle
anthropic Skill Creator
Create new skills, modify existing ones, and measure their performance through iterative evaluation and benchmarking.
158k · bundle
anthropic Web Artifacts Builder
Creates elaborate, multi-component HTML artifacts using React, Tailwind CSS, and shadcn/ui for complex frontend projects.
158k · bundle
alirezarezvani Financial Analyst
Performs financial ratio analysis, DCF valuation, budget variance analysis, and rolling forecast construction for strategic decision-making using financial statements and spreadsheet data.
20.4k · bundle
anthropic XLSX
Create, edit, and analyze spreadsheet files (.xlsx, .xlsm, .csv, .tsv) with formulas, formatting, and financial modeling conventions.
158k · bundle
alirezarezvani Code Reviewer
Automates code review for pull requests across 14+ languages, analyzing complexity, risk, code quality, and generating structured review reports.
20.4k · bundle
desesbraker Loki Mode
Version 2.35.0 | PRD to Production | Zero Human Intervention > Research-enhanced: OpenAI SDK, DeepMind, Anthropic, AWS Bedrock, Agent SDK, HN Production (2025)
2 · bundle
anthropic Theme Factory
Apply consistent, professional color palettes and font pairings to presentation slide decks and other artifacts using pre-set themes or custom on-the-fly generation.
158k · bundle
cloudflare-security-audit Security Audit
Finds exploitable vulnerabilities in codebases through a structured multi-phase audit covering recon, hunting, validation, and reporting.
· bundle
kbarbel640-del Deep Research
Plans and executes complex, multi-step research by decomposing questions, orchestrating subagents, and synthesizing findings into reports.
1 · bundle
alirezarezvani Pulse
Synthesizes recent conversations about any topic across Reddit, Hacker News, the open web, and optionally X/Twitter into a single briefing with citations, engagement metrics, and cross-platform pattern analysis.
20.4k · bundle
Latest Agent Skills
trailofbits Trailmark Variant Neighborhood
Expands one confirmed or suspected vulnerability into a Trailmark graph neighborhood of variant candidates by finding sibling functions, shared callers and callees, common sensitive sinks, common entrypoint paths, interface implementations, override relationships, type/reference neighbors, and structurally similar nodes. Use after one issue is found to seed variant-analysis, semgrep-rule-creator, static-analysis, or manual review with graph-derived candidate locations.
7k · bundle
trailofbits Writing Lean Proofs
Writes and reviews structured Lean 4 proofs and designs Lean libraries following Mathlib conventions. Use when proving theorems in Lean, formalizing mathematics or specifications in Lean 4, defining new types or definitions in a Lean library, reviewing Lean proofs for readability and maintainability, refactoring long tactic proofs into lemmas, filling in sorry placeholders in a Lean development, setting up CI or linters for a Lean project, diagnosing slow proofs or maxHeartbeats timeouts, or writing custom tactics, macros, or linters.
7k · bundle
trailofbits Trailmark Finding Triage
Performs graph-assisted triage of a single security finding, SARIF result, weAudit annotation, suspicious function, or report excerpt using Trailmark reachability, entrypoint paths, taint, privilege-boundary, blast-radius, caller/callee, and neighborhood evidence. Use when deciding whether one candidate issue is reachable, prioritizing a finding before PoC work, preparing evidence for exploit validation, or checking whether a static-analysis result is actionable.
7k · bundle
trailofbits Trailmark Review Gate
Runs a Trailmark structural review gate over a branch, pull request, fix commit, release diff, or git ref range to detect new entrypoints, new tainted paths, removed validation or authorization calls, privilege-boundary drift, blast-radius growth, complexity growth, and newly reachable sensitive sinks. Use when reviewing a PR, branch, remediation commit, or release diff where graph-level security regressions should be checked before merge.
7k · bundle
trailofbits Slicing Code Context
Selects bounded, graph-informed source slices with Trailmark and delegates focused code analysis or patch-proposal work to a smaller subagent. Use when offloading function-, class-, caller-, callee-, call-path-, entrypoint-, or line-focused code tasks to constrained or locally hosted models without exposing the full repository.
7k · bundle
trailofbits Open Sourcing
This skill should be used when the user asks to "open source this project", "prepare this repository for public release", "make this repo public", "check open-source readiness", "choose a license for this project", or "set up release automation" ahead of a public launch. Provides a release-readiness workflow covering secrets hygiene, licensing, documentation, CI, and language-specific packaging.
7k · bundle
trailofbits Github Triage
Triages a repository's open GitHub issues and pull requests via the gh CLI. Optionally reviews and merges ready PRs — incrementally merging passing automated/bot PRs and maintainer-approved ones, and spawning review subagents for never-reviewed ones — then closes already-resolved issues with comments citing the resolving PR or commit, cross-links issues with their pending fix PRs, and assigns local-only priority and change-size estimates for everything outstanding. Use when triaging, grooming, or reviewing a repository's open issues and PRs.
7k · bundle
trailofbits Code Improver
Runs an autonomous review-and-fix improvement loop over any code target — a skill, plugin, module, or directory — using a reviewer the user names: any installed skill or agent. Keeps a cross-round findings ledger, escalates when fixes stop converging, and guards scope mechanically. Use when asked to 'improve this code until review passes', 'run an improvement loop with <reviewer>', or to iterate review-and-fix with a specific reviewer. For skills prefer the skill-improver entry; for a branch prefer pr-improver.
7k
trailofbits Pr Improver
Runs an autonomous review-and-fix improvement loop over the current branch's changes until a PR review comes back clean, scoped mechanically to the directories the branch touched. Reviews are performed by an installed PR-review skill (default: pr-review-toolkit's review-pr). Use to fix review findings on a branch before opening or updating a pull request ('clean up this branch', 'fix this PR until review passes', 'run review-and-fix on my changes'). NOT for a one-time review — run the PR-review skill directly.
7k
trailofbits Goal Prompt
Drafts copy-paste-ready /goal commands for goal mode in Claude Code and Codex. Use when the user asks to create, write, rewrite, improve, compress, clean up, or prepare a goal prompt, goal condition, /goal command, goal-mode objective, or copy-ready long-running task objective.
7k · bundle
trailofbits Modern Cpp
Guides C++ code toward modern idioms (C++20/23/26). Use when writing new C++ code, modernizing legacy patterns, or working on security-critical C++. Replaces raw pointers with smart pointers, SFINAE with concepts, printf with std::print, error codes with std::expected.
7k · bundle
multica-ai Karpathy Guidelines
Behavioral guidelines to reduce common LLM coding mistakes. Use when writing, reviewing, or refactoring code to avoid overcomplication, make surgical changes, surface assumptions, and define verifiable success criteria.
211k
mohitagw15856 Competitive Intelligence Monitor
Monitor competitor signals and surface strategic implications for your roadmap. Use when asked to monitor competitors, track the competitive landscape, produce a competitive briefing, or understand what has changed in the market this week or month. Produces a structured intelligence brief with high/medium/low priority signals, roadmap implications, and a strategic landscape summary. For a single competitor announcement use competitor-signal-tracker; for a one-off deep dive use competitor-teardown.
mohitagw15856 Architecture Client Presentation
Present a design to a client so they can make a decision rather than react to a picture — the brief restated, the moves explained against it, the options with their trade-offs, and a specific decision requested. Use when asked to present a design to a client, prepare a design review meeting, present concept options, or when a client keeps changing their mind after sign-off. Produces the presentation structure, the brief-to-design traceability, the options with honest trade-offs, the cost and programme position, and the decision record that makes sign-off stick.
Frequently asked questions
What is an Agent Skill?
An Agent Skill is a reusable instruction file that teaches an AI agent to do one task well, such as reviewing code or extracting PDF tables. It ships as a SKILL.md file: YAML frontmatter plus Markdown instructions. The agent loads it automatically when a request matches, and the same file works across Claude Code, Cursor, Codex, and 60+ other agents.
What is a SKILL.md file?
It's the open format a skill ships in: a Markdown file with YAML frontmatter at the top (name, description, license) followed by the instructions in the body. The agent reads the short description to decide when the skill is relevant, then pulls in the full body only when needed (progressive disclosure).
Where can I download skills for Claude Code and other AI agents?
SkillMD (skillmd.com) is a free, open registry of thousands of AI agent skills. Search by task, category, or agent, then install with one CLI command (npx skillmds add owner/name), through the hosted MCP server, or by copying the SKILL.md file directly. Every public skill passes an automated safety review before it is listed.
When does an agent actually use a skill?
Automatically. The agent compares your request against each installed skill's description and triggers, then loads the most relevant one, so you don't have to invoke it by name. Good "use when…" descriptions are what make a skill discoverable to the model.
Skill vs. command vs. plugin: what's the difference?
A skill is knowledge or behaviour the agent applies on its own. A command is an explicit slash-action you run yourself. A plugin bundles related skills, and sometimes commands, so you can install a whole workflow at once — browse them at skillmd.com/plugins.
Do skills work across different agents and IDEs?
Yes. SKILL.md is an open standard, so the same skill works across Claude Code, Claude.ai, Codex, Cursor, Gemini, Antigravity and more. Each tool just reads the file from its skills directory. See skillmd.com/agents for per-agent install paths.
Are skills safe to install?
Treat them like any code you add to your workflow. Every skill on SkillMD shows capability flags (executes scripts, makes network calls, reads secrets, or docs-only), and SkillMD never runs a skill's scripts for you. Review the SKILL.md before installing, especially for unverified authors.
What does the verified ✓ badge mean?
It marks skills from official, trusted publishers like Anthropic, Google, Microsoft and Hugging Face. Anyone can publish, but the checkmark is reserved for vetted first-party sources.
Do AI agent skills cost anything?
No. SkillMD is 100% free: searching, saving, installing, and publishing skills all cost nothing, and skills remain under their authors' original licenses.
How do I install or submit a skill?
Install with the one-line MCP server (claude mcp add skillmds -- npx -y skillmds) and ask your agent by name, or download the SKILL.md directly. To contribute, use Submit a Skill: paste a SKILL.md or GitHub URL and it goes live after review.