# 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 QA or ML / AI or Data analysis or Design: 226 items. > - QA: Functional testing, test automation and quality assurance. > - ML / AI: Model training, evaluation and LLM application development. > - Data analysis: Querying, statistical analysis, reporting and visualization. > - 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. - [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. - [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. - [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. - [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. - [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. - [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. - [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. - [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. - [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. - [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. - [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. - [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. - [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. - [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. - [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. - [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. - [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. - [Performance Report](https://hebbmind.com/skill/performance-report.md): [Skill] Turns campaign or channel data into weekly, monthly or quarterly marketing reports: executive summary, key metrics and period-over-period trends, wins and misses, and next-period priorities. Connect analytics tools or just paste tables or key numbers. From Anthropic's knowledge-work-plugins. - [people-report](https://hebbmind.com/skill/people-report.md): [Skill] Generates people analytics reports from employee data: headcount snapshots, voluntary and involuntary attrition, diversity metrics, spans of control and flight risk, with findings and recommendations for leadership. Needs an uploaded employee CSV or a connected HRIS. Official from Anthropic. - [SQL Queries](https://hebbmind.com/skill/sql-queries.md): [Skill] Anthropic's official data skill that guides agents to write, translate and optimize SQL across Snowflake, BigQuery, Databricks, PostgreSQL and other warehouse dialects, including CTEs, window functions and analytical aggregations. - [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. - [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. - [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 Ads API Account Performance Diagnostics](https://hebbmind.com/skill/google-ads-api-account-diagnostics.md): [Skill] Google's official skill that queries account data through the Google Ads MCP server to diagnose conversion drops, falling leads and impression share lost to bids, budgets or ad rank. Needs a Google Ads account, API credentials (developer token and OAuth) and Python 3.12. - [BigQuery Basics](https://hebbmind.com/skill/bigquery-basics.md): [Skill] Manages BigQuery datasets, tables and jobs with the bq and gcloud CLIs, runs SQL queries and loads data, with references for client libraries, MCP and Terraform. Google's official skill; requires a Google Cloud project. - [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. - [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. - [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. - [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. - [lark-base (Lark Base)](https://hebbmind.com/skill/lark-base.md): [Skill] Official Lark (Feishu) skill for Lark Base: create tables, add fields, add and edit records, build views, forms and dashboards, or apply ready-made templates, good for sign-ups, asset registers and trackers. Needs lark-cli on a machine with Node.js, plus app setup and authorization. - [lark-sheets (Lark Sheets)](https://hebbmind.com/skill/lark-sheets.md): [Skill] Official Lark (Feishu) skill to create and edit Lark Sheets: formulas, charts and pivot tables, conditional formatting and filters, plus import and export of local Excel/CSV, for summaries, budgets and reports. Needs lark-cli on a machine with Node.js, plus app setup and authorization. Next page: https://hebbmind.com/tools.md?page=2&type=skill&profession=qa%2Calgorithm%2Cdata%2Cdesign