# Tools

> Every listed resource, editors’ picks first. The filters below can be combined.

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Type Skill, Resources for QA or ML / AI or Security or Design: 208 items.

> - QA: Functional testing, test automation and quality assurance.
> - ML / AI: Model training, evaluation and LLM application development.
> - Security: Code audits, vulnerability triage, penetration testing and compliance.
> - Design: Interface, interaction, visual and brand design.

- [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.
- [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.
- [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.
- [Test-Driven Development](https://hebbmind.com/skill/test-driven-development.md): [Skill] Forces red-green-refactor: write a test and watch it fail, then write the minimum code to pass. Any code written without a verified failing test gets deleted and redone. From the Superpowers workflow.
- [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.
- [Slack GIF Creator](https://hebbmind.com/skill/slack-gif-creator.md): [Skill] Makes GIFs that follow Slack's recommended size, frame rate, color and length for emoji (128x128) and message GIFs (480x480), with animation tips and tools to assemble and validate them. Built on Python and Pillow. 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.
- [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.
- [Theme Factory](https://hebbmind.com/skill/theme-factory.md): [Skill] Ten built-in color and font themes to apply to slides, documents, reports and HTML landing pages, or generate a new theme on demand. Official Anthropic skill.
- [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.
- [Canvas Design](https://hebbmind.com/skill/canvas-design.md): [Skill] Develops a design philosophy first, then draws posters, illustrations and other static visuals in code, exporting PNG or PDF. Emphasizes original work rather than copying existing artists. Official Anthropic skill.
- [Algorithmic Art](https://hebbmind.com/skill/algorithmic-art.md): [Skill] Creates generative art such as flow fields and particle systems with p5.js and seeded randomness: first writes an algorithmic design philosophy, then outputs an interactive HTML viewer with tunable parameters. Official Anthropic skill.
- [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.
- [gstack](https://hebbmind.com/skill/gstack.md): [Skill] Skill pack from YC president Garry Tan: slash commands such as /office-hours, /plan-ceo-review, /review, /qa and /ship play CEO, engineering manager, designer, QA and release engineer. Needs Git and Bun; clone the repo and run ./setup as the README describes.
- [Image Gen](https://hebbmind.com/skill/imagegen.md): [Skill] Generates or edits images: photos, illustrations, textures, game sprites, product mockups and transparent assets. A built-in Codex system skill using the image_gen tool, no install needed; with approval it can use a bundled CLI script that needs OPENAI_API_KEY. By OpenAI.
- [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.
- [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.
- [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.
- [HyperFrames Skills](https://hebbmind.com/skill/heygen-com-skills.md): [Skill] HeyGen's official HyperFrames skill set: lets agents write deterministic MP4 videos in HTML, CSS and animation, with workflows for promo videos, explainers, captions and beat-synced music. Needs Node.js 22+ and FFmpeg.
- [Diagram Design](https://hebbmind.com/skill/diagram-design.md): [Skill] Generates self-contained HTML+SVG diagrams in an editorial style: architecture, flowcharts, sequence, swimlane, Gantt and dozens more types. Can match brand colors from a website and redraw imported Mermaid, draw.io and Excalidraw sources.
- [Conversion Rate Optimization (CRO)](https://hebbmind.com/skill/cro.md): [Skill] Conversion rate optimization skill from the marketingskills collection: give it a homepage, landing page, pricing page or form and it diagnoses value proposition, headlines, CTAs, trust signals and friction, returning quick wins, high-impact changes, A/B test ideas and alternative copy.
- [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.
- [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.
- [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.
- [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 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.
- [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.
- [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.
- [Find Skills](https://hebbmind.com/skill/find-skills.md): [Skill] When a user asks whether a skill exists for some task, searches the skills.sh ecosystem with the skills CLI, then recommends and installs a fit. Maintained by Vercel Labs and shipped in the skills CLI repo.
- [Anthropic Cybersecurity Skills](https://hebbmind.com/skill/anthropic-cybersecurity-skills.md): [Skill] Community-maintained cybersecurity skill library: 800+ skills across 34 domains including threat hunting, incident forensics, penetration testing and cloud security, mapped to MITRE ATT&CK and NIST CSF. Not by Anthropic; offensive skills are for authorized testing only.
- [Web Design Guidelines](https://hebbmind.com/skill/web-design-guidelines.md): [Skill] Reviews UI code against Vercel's Web Interface Guidelines, covering accessibility, focus, forms, animation, typography, dark mode and more, listing issues as file:line. Fetches the latest rules before each review. Maintained by Vercel.
- [Compliance Tracking](https://hebbmind.com/skill/compliance-tracking.md): [Skill] Compliance skill from Anthropic's official operations plugin: maps controls, owners and evidence for SOC 2, ISO 27001, GDPR, HIPAA and PCI DSS, schedules audits, runs gap analyses, and outputs audit-readiness checklists and evidence collection plans. Have legal or compliance experts review.
- [synthesize-research](https://hebbmind.com/skill/synthesize-research.md): [Skill] Synthesizes user feedback from interview notes, surveys and support tickets into themes ranked by frequency and impact, and outputs structured insights and roadmap recommendations. Can pull data from knowledge bases or meeting transcripts. From Anthropic's official product-management plugin.
- [Huashu Design](https://hebbmind.com/skill/huashu-design.md): [Skill] Have an agent produce high-fidelity clickable prototypes, editable slides, timeline animations (exportable to MP4/GIF) and infographics in HTML from one sentence. Proposes three design directions first and includes a five-dimension design review. By Huashu, MIT licensed.
- [Google Agent Skills](https://hebbmind.com/skill/google-google-skills.md): [Skill] Google's official skill library, focused on Google Cloud: 100+ skills for gcloud, Cloud Run, GKE, BigQuery, IAM, monitoring and logging, and the Well-Architected Framework, plus Ads and Analytics.
- [Agent Skills for Context Engineering](https://hebbmind.com/skill/agent-skills-for-context-engineering.md): [Skill] Context and harness engineering skills: context fundamentals, degradation diagnosis and compression, multi-agent architectures, memory systems, tool design, LLM-as-judge evaluation and self-improvement loops. Focused on principles and design patterns, not tied to any agent platform.
- [ARIS (Auto-claude-code-research-in-sleep)](https://hebbmind.com/skill/auto-claude-code-research-in-sleep.md): [Skill] Lets Claude Code push ML research forward unattended: literature review, topic selection, experiment deployment, cross-model review loops and paper writing through rebuttal, in 80+ skills. Codex acts as the independent reviewer by default; other model pairings work too.
- [lark-whiteboard](https://hebbmind.com/skill/lark-whiteboard.md): [Skill] Official Lark (Feishu) skill to view, export and edit whiteboards in Lark docs: write Mermaid, PlantUML or SVG into a board for flowcharts or org charts, or export boards as images or SVG. New boards are created with lark-doc. Needs lark-cli, Node.js and auth; install with lark-shared.
- [GSAP AI Skills](https://hebbmind.com/skill/gsap-skills.md): [Skill] GSAP's official animation skills: teach agents to use the core API, timelines, ScrollTrigger and plugins correctly, including React, Vue and Svelte integration and animation performance. Maintained by GreenSock; all plugins are free.
- [Prompt Master](https://hebbmind.com/skill/prompt-master.md): [Skill] Writes precise prompts for a specific AI tool: identifies the target tool, extracts your intent, asks at most three questions if details are missing, then outputs a lean, paste-ready prompt. Covers dozens of tools including ChatGPT, Claude Code, Cursor, Midjourney and Sora.
- [Localization Review](https://hebbmind.com/skill/localization-review.md): [Skill] FormatJS's official localization review skill for software translators: read-only checks of UI strings and translations for ICU syntax, placeholders, terminology consistency and locale formats for dates, numbers and currency, listing issues with evidence and minimal fixes. Never edits files.
- [Playwright CLI](https://hebbmind.com/skill/playwright-cli.md): [Skill] Companion skill for the official Playwright CLI: short commands to open pages, click and fill forms, take snapshots and screenshots, and write and debug Playwright tests, using less context than the MCP approach. Maintained by Microsoft; needs Node.js.
- [AI Research Skills](https://hebbmind.com/skill/ai-research-skills.md): [Skill] Nearly 100 skills spanning the AI research workflow: ideation and literature review, fine-tuning and post-training, distributed training, inference serving, evaluation, interpretability and paper writing, tied together by an autoresearch orchestration skill.
- [Garden Skills](https://hebbmind.com/skill/garden-skills.md): [Skill] ConardLi's skill collection: turn articles or scripts into web presentations you can screen-record as videos (23 themes, optional voiceover), lay out material as shareable long-form web pages, search local knowledge base folders, web design, and GPT-Image-2 image generation with 79 templates.
- [Kami](https://hebbmind.com/skill/kami.md): [Skill] Document layout skill by tw93 with eight templates (resume, one-pager, long doc, formal letter, portfolio, slides, research report and more) that render polished PDF, PNG or editable PPT and check layout and content gaps. Supports English, Chinese, Japanese and Korean. Needs Python (WeasyPrint).
- [Hugging Face LLM Trainer](https://hebbmind.com/skill/huggingface-llm-trainer.md): [Skill] Lets agents fine-tune language and vision models with TRL or Unsloth on Hugging Face Jobs cloud GPUs, supporting SFT, DPO, GRPO and reward models, and convert results to GGUF for local use. Requires an HF Pro or higher paid plan. Maintained by Hugging Face.

Next page: https://hebbmind.com/tools.md?page=2&type=skill&profession=qa%2Calgorithm%2Csecurity%2Cdesign
