# Tools > Every listed resource, editors’ picks first. The filters below can be combined. - Search: append `?q=` to the URL. Separate several keywords with spaces; all of them must match. Matches name, repository, tags, professions, description and README. - Filter by type: append `?type=` to the URL. - Filter by profession: append `?profession=` to the URL. Separate several ids with commas; a resource matches when it suits any of them. Ids are listed at https://hebbmind.com/api/v1/professions - Filter by tag: append `?tag=` to the URL. Separate several tags with commas; a resource must carry all of them. Tags are listed at https://hebbmind.com/api/v1/tags Type Skill, Resources for Frontend or ML / AI or Data analysis or Security: 279 items. > - Frontend: Web and mobile-web interfaces: building, debugging and performance tuning. > - ML / AI: Model training, evaluation and LLM application development. > - Data analysis: Querying, statistical analysis, reporting and visualization. > - Security: Code audits, vulnerability triage, penetration testing and compliance. - [Superpowers](https://hebbmind.com/skill/superpowers.md): [Skill] A full development methodology for coding agents: brainstorm a design, break it into an implementation plan, dispatch subagents to build and review each task, with mandatory TDD and systematic debugging. Installed as a plugin, it injects its bootstrap automatically. - [Skills For Real Engineers (Matt Pocock)](https://hebbmind.com/skill/mattpocock-skills.md): [Skill] Matt Pocock's engineering skills: grill-me interrogates you to align on requirements, to-spec turns discussion into a spec, to-tickets breaks it into tickets, plus tdd, diagnosing-bugs, code-review and more. Run setup-matt-pocock-skills once per repo first. - [Skill Creator](https://hebbmind.com/skill/skill-creator.md): [Skill] Guides the agent through writing or improving a skill: clarify intent, draft SKILL.md, run scored evals with and without the skill, then tune the description so it triggers accurately. Official Anthropic skill. - [Frontend Design](https://hebbmind.com/skill/frontend-design.md): [Skill] Has the agent commit to a visual direction before building or redesigning an interface, making deliberate choices on color, type and layout instead of generic, templated AI UI. Official Anthropic skill. - [Browser Use](https://hebbmind.com/skill/browser-use.md): [Skill] Controls your local Chrome over CDP to navigate, click, type, take screenshots and scrape data, reusing logged-in sessions. Official browser-use skill; install the browser-use CLI with uv first. - [Scientific Agent Skills](https://hebbmind.com/skill/scientific-agent-skills.md): [Skill] 166 research skills maintained by K-Dense (formerly Claude Scientific Skills), spanning bioinformatics, cheminformatics, clinical research, materials and physics, including unified access to 78 public databases such as PubChem and UniProt. Works with Claude Code, Codex and Cursor. - [Trail of Bits Skills](https://hebbmind.com/skill/trailofbits-skills.md): [Skill] Skills from security firm Trail of Bits: 40+ plugins for code auditing, CodeQL and Semgrep static analysis, differential review, smart-contract and cryptography audits, fuzzing and more. Also installable as a Claude Code or Codex plugin marketplace. - [Writing Plans](https://hebbmind.com/skill/writing-plans.md): [Skill] Once requirements or a spec exist and before touching code, writes multi-step work as a fine-grained implementation plan listing the files, interface signatures and tests to verify each step. A core Superpowers skill. - [Systematic Debugging](https://hebbmind.com/skill/systematic-debugging.md): [Skill] A four-phase root-cause debugging method: investigate the root cause, compare against working examples, test one hypothesis at a time, then fix the root cause. Guessing at code changes before locating the cause is not allowed. From the Superpowers workflow. - [Verification Before Completion](https://hebbmind.com/skill/verification-before-completion.md): [Skill] Requires the agent to run the full verification commands and read the output before claiming work is done, fixed or passing, backing claims with evidence and ruling out unverified success reports. From the Superpowers workflow. - [Using Git Worktrees](https://hebbmind.com/skill/using-git-worktrees.md): [Skill] Sets up an isolated workspace before feature work: uses the agent's built-in worktree tool when available, otherwise falls back to git worktree, then installs dependencies and runs baseline tests to confirm a clean start. From Superpowers. - [Brainstorming](https://hebbmind.com/skill/brainstorming.md): [Skill] Before writing code, asks questions one at a time to clarify intent, constraints and success criteria, turning a vague idea into a reviewable design; implementation starts only after you approve it. A core Superpowers skill. - [Requesting Code Review](https://hebbmind.com/skill/requesting-code-review.md): [Skill] Before finishing a task or merging, dispatches an independent reviewer subagent over a git commit range to check the work against the plan and requirements, then handles feedback by severity: critical, important, minor. Part of obra/superpowers. - [tdd](https://hebbmind.com/skill/tdd.md): [Skill] Test-driven development in vertical slices: agree on test seams with the user first, verify behavior only through public interfaces, and avoid listed anti-patterns such as implementation coupling and tautological tests. From Matt Pocock's skills collection. - [Diagnosing Bugs](https://hebbmind.com/skill/diagnosing-bugs.md): [Skill] A disciplined process for hard bugs and performance regressions: build a reliable reproduction loop, reproduce and minimize, form hypotheses, instrument to verify, then fix and add a regression test, redacting secrets in output. By Matt Pocock. - [Karpathy-Inspired Claude Code Guidelines](https://hebbmind.com/skill/andrej-karpathy-skills.md): [Skill] Behavior guidelines drawn from Karpathy's observations of how LLMs go wrong when coding: think before acting, keep it simple, make surgical changes only, and drive work by verifiable goals. Can also be used directly as a CLAUDE.md. - [MCP Builder](https://hebbmind.com/skill/mcp-builder.md): [Skill] Guides agents in building quality MCP servers: research the protocol and target API, design tools, implement with Python (FastMCP) or the TypeScript SDK, and write evaluation questions to test the result. Official Anthropic skill. - [XLSX](https://hebbmind.com/skill/xlsx.md): [Skill] Creates, edits and analyzes Excel spreadsheets: formulas, formatting, charts and data cleaning, plus conversion between CSV, TSV and other tabular formats. The official Anthropic skill behind Claude's document features; source-available, not open source. - [webapp-testing](https://hebbmind.com/skill/webapp-testing.md): [Skill] Drives local web apps with Python Playwright scripts to verify features, debug the UI, take screenshots and read browser logs. Includes helper scripts to start and stop dev servers. Official Anthropic skill. - [Web Artifacts Builder](https://hebbmind.com/skill/web-artifacts-builder.md): [Skill] Builds multi-component web pages that need state or routing with React, Tailwind CSS and shadcn/ui, using bundled init and build scripts, then packs them into a single HTML file for a claude.ai Artifact. Official Anthropic skill. - [Claude API](https://hebbmind.com/skill/claude-api.md): [Skill] Reference for the Claude API and Anthropic SDK: model selection and pricing, streaming, tool use, prompt caching, Managed Agents and more, plus workflows for model migration and prompt audits. Official Anthropic skill. - [Ponytail](https://hebbmind.com/skill/ponytail.md): [Skill] Has the agent follow a 'don't write it if you can avoid it' ladder: ask if it's needed, then reuse existing code, the standard library, platform features and installed dependencies, writing only the minimum while keeping validation, error handling, security and accessibility. - [next-dev-loop](https://hebbmind.com/skill/next-dev-loop.md): [Skill] After code changes, has the agent check routes, errors and page behavior in the running Next.js app via /_next/mcp and agent-browser to confirm the change really works. Maintained by Next.js; needs Next.js 16.3+ (Turbopack) and agent-browser. - [Next.js Cache Components Optimizer](https://hebbmind.com/skill/next-cache-components-optimizer.md): [Skill] Drives a Next.js route to instant navigation under Cache Components: writes a failing @next/playwright instant() e2e test, pushes Suspense boundaries down to grow the static shell until it passes, and keeps the test as a regression guard. Requires Next.js 16.3+ with cacheComponents. - [UI UX Pro Max](https://hebbmind.com/skill/ui-ux-pro-max-skill.md): [Skill] UI design knowledge base skill: looks up UI styles, palettes, font pairings, charts and UX guidelines by product type and generates a full design system, covering 22 stacks including React, SwiftUI and Flutter. Needs Python 3 locally. - [shadcn/ui](https://hebbmind.com/skill/shadcn.md): [Skill] Official shadcn/ui skill: uses the shadcn CLI to read project config and component docs, then adds, searches, composes and fixes components following styling, form and accessibility rules. Can also start new projects from presets. - [Migrate Radix to Base UI](https://hebbmind.com/skill/migrate-radix-to-base.md): [Skill] Migrates React projects and shadcn components from Radix UI to Base UI, one component at a time or the whole project on request. Prefers the shadcn CLI's base variants merged with user customizations, typechecks every step, and writes a per-component report in .migration/. From the shadcn/ui repo. - [Agent Skills (Addy Osmani)](https://hebbmind.com/skill/addyosmani-agent-skills.md): [Skill] Engineering skill collection spanning define, plan, build, verify, review and ship, with /spec, /plan, /build, /test, /review and /ship commands, including TDD, code review and web performance audits. By Addy Osmani. - [Code Review and Quality](https://hebbmind.com/skill/code-review-and-quality.md): [Skill] Reviews code changes before merge across five axes: correctness, readability, architecture, security and performance. Works on code and PRs from you, other agents or other people, judged by whether they improve overall code health. Part of Addy Osmani's agent-skills. - [Taste Skill](https://hebbmind.com/skill/taste-skill.md): [Skill] Helps agents build frontends that don't look templated: picks a design direction first, then tunes layout variance, motion intensity and information density. Also includes redesign audits, minimalist and brutalist styles, and design reference generation. - [Impeccable](https://hebbmind.com/skill/impeccable.md): [Skill] Frontend design polish skill: one skill with 24 commands such as polish, audit, critique and typeset, plus 61 deterministic rules that catch typical AI-generated UI problems, with live iteration in the browser. Works with Claude Code, Codex, Cursor and others. - [SEO Audit](https://hebbmind.com/skill/seo-audit.md): [Skill] Diagnoses website SEO issues: checks crawling and indexing, Core Web Vitals, metadata and on-page content, and gives prioritized, actionable fixes. From the marketingskills collection. - [Chrome DevTools](https://hebbmind.com/skill/chrome-devtools.md): [Skill] Teaches agents to use the Chrome DevTools MCP efficiently: snapshot first to get element uids, screenshot only when needed, paginate and filter large output, inspect CSS and test browser extensions. Needs chrome-devtools-mcp configured; maintained by the Chrome DevTools team. - [Statistical Analysis](https://hebbmind.com/skill/statistical-analysis.md): [Skill] Guides agents to the right statistical method for research data: t-tests, ANOVA, chi-square, regression and Bayesian analysis, checking assumptions, computing effect sizes and power, and reporting results in APA format. Python-based (pingouin, statsmodels); by K-Dense. - [Database Lookup](https://hebbmind.com/skill/database-lookup.md): [Skill] Unified database lookup skill from K-Dense's scientific collection: reproducibly queries about 80 public database APIs such as PubChem, UniProt, ChEMBL, ClinicalTrials.gov and FRED, returning traceable results with endpoints, parameters and count checks. Some need API keys. - [Scanpy Single-Cell Analysis](https://hebbmind.com/skill/scanpy.md): [Skill] Teaches agents standard single-cell RNA-seq analysis with Scanpy: QC, normalization, PCA/UMAP, clustering, differential expression and plots, with ready-to-run pipeline scripts and guidance on converting Seurat and other R objects to h5ad. Needs Python 3.12+; by K-Dense. - [Agentic Awesome Skills](https://hebbmind.com/skill/agentic-awesome-skills.md): [Skill] Collection of 2,400+ installable SKILL.md skills across development, security, cloud and ops, AI, marketing and more, with the AAS Core local MCP and an installer that help agents search, pick skills and preview install plans. Formerly antigravity-awesome-skills. - [Skills For Designers and Engineers](https://hebbmind.com/skill/emilkowalski-skills.md): [Skill] Design engineering skills by Emil Kowalski, author of Sonner and Vaul: choose animation easing and durations, review and improve motion, apply Apple design principles, make web apps feel native on phones, and help pick UI libraries and prototype multiple versions. - [Open Code Review](https://hebbmind.com/skill/open-code-review.md): [Skill] Drives Alibaba's open-source ocr CLI to review Git changes (working tree, a commit or a branch diff), grouping line-level comments by severity and fixing them on request. Needs an LLM endpoint (Anthropic, OpenAI and other protocols); installs the CLI if missing. By Alibaba. - [agent-browser](https://hebbmind.com/skill/agent-browser.md): [Skill] Companion skill for the agent-browser CLI: has the agent load usage matching the installed version to navigate, fill forms, take screenshots and run exploratory tests, and can also drive Electron desktop apps. Install the agent-browser CLI first; from Vercel Labs. - [daisyUI Install](https://hebbmind.com/skill/daisyui-install.md): [Skill] Installation guide for daisyUI 5: requires Tailwind CSS 4 without tailwind.config.js, installs via npm and adds the plugin in CSS, covers the CDN setup, and links framework guides for Next.js, Vue, SvelteKit, Laravel and more. Part of the official daisyUI skill. - [daisyUI](https://hebbmind.com/skill/daisyui.md): [Skill] Official daisyUI skill: the agent uses daisyUI 5 component classes, semantic colors and themes whenever it writes HTML or JSX, picking components by intended function, reading their guides and following their exact structure. Includes install, usage, config and color guides. Built on Tailwind CSS 4. - [daisyUI Config](https://hebbmind.com/skill/daisyui-config.md): [Skill] Configuration reference for daisyUI 5: how to set enabled themes, the default and prefers-dark theme, root selector, included or excluded modules, class prefix and console logs in the CSS plugin block, with full examples. Part of the official daisyUI skill. - [daisyUI Colors](https://hebbmind.com/skill/daisyui-colors.md): [Skill] Color rules for daisyUI 5: explains semantic names such as primary, base-100 and error with their -content foregrounds, says to prefer them over fixed Tailwind colors and never add dark: to them, and shows how to enable, create and override themes. Part of the official daisyUI skill. - [daisyUI Usage](https://hebbmind.com/skill/daisyui-usage.md): [Skill] Usage rules for daisyUI 5: combine component, part and modifier classes, add Tailwind utilities when needed and the ! override only as a last resort, use the default variant unless asked, make layouts responsive, and follow Refactoring UI for design choices. Part of the official daisyUI skill. - [GDPR Data Handling](https://hebbmind.com/skill/gdpr-data-handling.md): [Skill] EU GDPR compliance skill covering lawful bases, consent management, access and deletion requests, data retention and breach notification, with checklists and sample code so legal and engineering can review privacy together. No account or API key; have a lawyer check conclusions. - [wshobson/agents](https://hebbmind.com/skill/wshobson-agents.md): [Skill] The 180+ skills bundled with the 90+ plugins in the wshobson/agents marketplace, covering development across many languages and frameworks, testing, ops, security, data and LLM apps. Install individually with npx skills or gh skill; skills only, without subagents or commands. - [audit-xls](https://hebbmind.com/skill/audit-xls.md): [Skill] Official Anthropic finance skill that checks Excel for formula errors like #REF!, numbers hardcoded in formulas, sum ranges that miss rows and mixed units; on full models it also checks the balance sheet balances and cash ties. Lists issues and fixes and asks before changing anything. - [clean-data-xls](https://hebbmind.com/skill/clean-data-xls.md): [Skill] Official Anthropic skill for cleaning messy Excel exports: trims spaces, standardizes case and dates, converts text numbers, dedupes, and flags mixed types, garbled text and errors. Keeps originals via helper-column formulas and confirms each step. Works in Claude for Excel; local files need Python. - [Awesome GitHub Copilot](https://hebbmind.com/skill/awesome-copilot.md): [Skill] Community collection maintained under GitHub's official org with hundreds of skills following the Agent Skills spec, plus custom agents, instructions and plugins across many languages, frameworks and workflows. Content is third-party; install single skills with gh skills install. Next page: https://hebbmind.com/tools.md?page=2&type=skill&profession=frontend%2Calgorithm%2Cdata%2Csecurity