Design Critique
Structured design critique: usability, hierarchy, consistency, accessibility. Honest, but not cynical, like a good senior colleague.
Saves 1 to 2 hours per review round · Anthropic Plugin
The Collective Brain Claude skills collection.
The 56 Best Claude Skills
The most useful Claude skills for marketing, brand, design, product and sales. Drop them into Claude, build them into your own workflow, and go.
A Claude skill (also called an agent skill) is a small folder with a SKILL.md file: instructions, templates and knowledge that Claude loads automatically as soon as a task fits. As of June 2026 you find 56 vetted skills in 7 categories here, each with its triggers, install path and SKILL.md to download, all free.
Filter
01
Design & UX
Accessibility Review (WCAG 2.1 AA)
Full WCAG 2.1 AA audit: contrast, keyboard navigation, touch targets, screen readers. Before every launch.
Saves Replaces 4 to 6 hours of an external audit · Anthropic Plugin
UX Copy
Microcopy, error messages, empty states, CTAs, written without sounding like marketing.
Saves 30 to 60 minutes per component · Anthropic Plugin
User Research Synthesis
Turns 15 interview transcripts into 3 main themes, 5 hypotheses, and a backlog. Instead of 4 hours with sticky notes on a wall.
Saves A full workshop day · Anthropic Plugin
Design Handoff Spec
From mockup to dev spec with tokens, component props, interaction states, and edge cases, reliably ready to hand off.
Saves 2 to 3 hours per component · Anthropic Plugin
Design System Audit & Extend
Finds hardcoded values, inconsistent naming patterns, and drift in your design system. Plus: proposes new patterns that fit the architecture.
Saves 5 to 10 hours of inventory work · Anthropic Plugin
User Research Planning
From research goal to interview guide. Questions that aren't manipulative and answers that are worth something.
Saves 3 to 5 hours per study · Anthropic Plugin
Anthropic Frontend Design
Produces distinctive, production-ready UI layouts instead of generic templates.
Saves 1 to 2h per landing page · Anthropic
Vercel Web Design Guidelines
Audits web UIs against more than 100 heuristics covering UX, layout and accessibility.
Saves 1 to 3h per review · Community
Figma to Code
Translates Figma frames into clean HTML/CSS or React code with a clear structure.
Saves 3 to 5h per page · Collective Brain
Theme Factory
Apply one of 10 curated slide-deck themes (colors, fonts, layout tokens) or generate a custom theme from your brand colors. Palettes and font pairings included inline.
Saves 2 to 4h per design setup · Anthropic
UX Flow & Wireframer
Sketches user flows and low-fidelity wireframes as text layouts and diagrams.
Saves Saves 2 to 3 hours per feature · Community
02
Branding
Brand Voice Enforcement
Automatically applies your brand guidelines to every email, pitch deck, and social post. No more five different voices across the team.
Saves 2 to 3 hours per piece of content (no voice drift) · Anthropic Plugin
Brand Voice Guidelines Generator
Turns sales call transcripts, Notion docs, or a handful of examples into a binding voice guide, in 30 minutes instead of 30 days.
Saves 20 to 40 hours of workshop preparation · Anthropic Plugin
Discover Brand Materials
Autonomously searches Notion, Confluence, Google Drive, Figma, Gong, and Slack for everything that belongs to your brand, and delivers a sorted overview.
Saves 8 to 12 hours of searching through the platform mess · Anthropic Plugin
Brand Review
Before you hit send: does the text fit the brand? Catches brand drift, legal risks and clichés before they go out.
Saves Saves 30 minutes per asset · Anthropic Plugin
Anthropic Brand Application
Applies Anthropic brand standards to any artifact: colors, typography, visual language. Especially handy when you are building something for or with Anthropic.
Saves Saves 30 minutes per asset · Anthropic
Brandkit
Builds complete brand boards with logo ideas, a color world, typography and mockups.
Saves 4 to 6h per brand concept · Community
03
Product
Vercel React Best Practices
Reviews React/Next.js code against performance, DX and UX best practices.
Saves 1 to 2h per code review · Community
Website Builder (Landing Page Component System)
Generates complete landing pages from a component library and deploys them as a WordPress draft.
Saves 4 to 8h per landing page · Community
UX Research Interview Kit
Creates guides, scripts, and evaluation frameworks for structured UX interviews.
Saves Saves 2 to 4 hours per research wave · Community
Persona Workshop Facilitator
Helps derive and sharpen B2B personas from research and CRM data.
Saves Saves 3 to 4 hours per persona workshop · Community
B2B Value Proposition Mapper
Structures customer problems, solutions, and proof points into clear value propositions.
Saves Saves about 2 hours per product · Community
Founder Pitch Deck Coach
Structures B2B pitch decks and improves the storyline, slides, and graphics.
Saves Saves 3 to 6 hours per deck · Community
GitHub Actions: Minuten sparen
Stop blocked deploys and burned CI budget. This skill diagnoses the Actions limit, sets up the right budget, and slims down your workflow (cancel-in-progress, paths-ignore, timeout, fast npm ci).
Saves Unblocks stalled deploys immediately and cuts minute consumption by roughly 50 to 70 percent · Collective Brain
04
Visual
Canvas Design
PNG and PDF designs grounded in design philosophy: posters, business cards, artwork. Always original, never copied.
Saves Saves 1 to 3 hours per design · Anthropic
DIVI WordPress Editing
Edit, optimize, and migrate DIVI sites: layouts, modules, templates, child themes, performance, and DIVI 5 migration.
Saves Saves hours to days depending on the project · Community
imagegen-frontend-mobile
Delivers mobile app screens as mockups for convincing product previews.
Saves 2 to 3h per pitch deck · Community
Algorithmic Art
Create standalone generative art with p5.js, from algorithmic philosophy to an interactive viewer. Seeded randomness, flow fields, and particle systems produce reproducible, parametrically controllable works without copying anyone's templates.
Saves 3 to 5 hours per project · Anthropic
05
AI & Automation
Skill Creator
Creates, improves, and tests your own Claude skills. Includes an eval suite and description optimization for better triggering.
Saves Saves several hours per new skill · Anthropic
Create Cowork Plugin
Walks you through building your own Cowork plugin, from the first idea to the finished .plugin file.
Saves Saves days of initial plugin setup · Anthropic Plugin
Customize Cowork Plugin
Adapts an existing plugin to your organization's tools, wording, and workflows, without forking the plugin.
Saves Saves half a day to a full day per adaptation · Anthropic Plugin
Schedule Tasks
Run recurring tasks automatically: a briefing every morning, a weekly plan every Monday, an inbox check every hour.
Saves Saves 5 to 10 minutes per run, multiplied across every repeat · Anthropic
Setup Cowork
Guided onboarding: install role-matched plugins, connect your tools, and try a first skill.
Saves 1 to 2h of trial and error inside the tool · Anthropic
Google Ads Performance Analyzer
Analyzes Google Ads data, builds pivot tables, and delivers optimization suggestions.
Saves Saves 1 to 2 hours per reporting cycle · Community
VopixSounds
Makes Claude Code audible. One sound when Claude is waiting for your approval or input, a different one when a task is finished. Keep working in another window and never miss the moment Claude needs you.
Saves No more dead waiting in front of an unnoticed prompt · Vopix
Claude API Referenz
Build LLM applications directly against the Anthropic SDK instead of guessing from memory. Current model IDs, pricing, parameters, streaming, tool use, MCP, agents, caching, and token counting in one place.
Saves 30 to 60 minutes per integration · Anthropic
MCP Builder
Build high-quality MCP servers that connect LLMs to external APIs and services through well-designed tools. This skill guides you through research, design, and implementation in Python (FastMCP) or Node/TypeScript (MCP SDK).
Saves 4 to 8 hours per MCP server · Anthropic
06
Content & Marketing
Campaign Plan
Turns a marketing goal into a 12-week plan with channels, content calendar and dependencies. No spreadsheet lasagna.
Saves Saves 1 to 2 days of planning marathon · Anthropic Plugin
Content Creation
Blog posts, social media, newsletters, landing pages, case studies. Channel-specific, SEO-aware, without the LinkedIn madness.
Saves Saves 2 to 4 hours per piece of content · Anthropic Plugin
Email Sequence
Drip sequences with timing, branching, exit conditions, and A/B test suggestions.
Saves Saves one workday per sequence · Anthropic Plugin
SEO Audit
Keyword gaps, on-page issues, content gaps and a competitor comparison, delivered as a prioritized action list, not an 80-page PDF.
Saves Saves 10 to 20 hours of external audit · Anthropic Plugin
SEO / GEO / AEO Website Audit
Audits any website across three visibility layers: SEO (Google, Bing), GEO (Perplexity, ChatGPT Search, Gemini, Google AI Overviews) and AEO (featured snippets, voice). Delivers scores plus a prioritized action list as Word and PDF.
Saves Saves 5 to 10 hours per audit (Quick 1 to 2 min, Full 5 to 10 min) · Community
Competitive Brief
Five competitors, compared side by side on messaging, visuals, pricing signals and open market niches.
Saves Saves 6 to 10 hours of research · Anthropic Plugin
Performance Report
Translates marketing data into an executive story, with wins, misses and recommendations for the next period.
Saves Saves 4 to 6 hours of reporting marathon · Anthropic Plugin
AI Marketing Team
Simulates a small marketing team with roles such as strategist, copywriter and analyst.
Saves 2 to 3h per campaign concept · Community
Keyword Strategy Planner
Turns a keyword CSV into a prioritized content and SEO strategy with intent mapping.
Saves Saves 3 to 5 hours per keyword project · Community
UX Copy Refiner
Optimizes microcopy for forms, modals, CTAs, and error messages to improve clarity.
Saves Saves about 1 hour per UI flow · Community
Sales Enablement Pack
Creates one-pagers, battlecards, and objection handling based on product information.
Saves Saves 3 to 5 hours per sales pack · Community
Doc Co-Authoring Workflow
Walks you through a structured workflow for writing documentation together with Claude. You gather context, build each section iteratively, and test at the end whether the text works for real readers.
Saves 2 to 4 hours per document · Anthropic
Interne Kommunikation
Write internal communications in the formats your company likes. From status reports and leadership updates to newsletters, FAQs, and incident reports, this skill delivers the right templates and the right tone.
Saves 30 to 60 minutes per communication · Anthropic
07
Office & Data
PDF Workflows
Create, read, merge, split, OCR and fill out forms in PDFs, without an Adobe subscription.
Saves Saves 30 minutes to 2 hours per task · Anthropic
Word Document Creation
Word documents with a table of contents, headers, page numbers and a letterhead, generated programmatically.
Saves Saves 1 hour per document (vs. formatting by hand) · Anthropic
Excel Spreadsheets
Read and write Excel files, with formulas and charts. Even for the spreadsheets nobody wants to clean up anymore.
Saves Saves 2 to 6 hours per model · Anthropic
PowerPoint Presentations
Slide decks from an outline, data, or a story. With layouts, speaker notes, and on-brand charts, ready for the pitch.
Saves Saves 3 to 6 hours per deck · Anthropic
Notion Ops Connector
Reads and updates Notion databases for content plans, roadmaps, and wikis.
Saves Saves 30 to 60 minutes per week · Community
Nothing found
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Which skill for which task?
The fastest shortcut: find your task, pick the matching skill.
| Your task | Matching skill | Saves you |
|---|---|---|
| You are writing a pitch and need the CB tone of voice. The skill reads your voice guide and checks the text. | Brand Voice Enforcement | 2 to 3 hours per piece of content (no voice drift) |
| Before presenting 3 logo routes to the client, a self-check. | Design Critique | 1 to 2 hours per review round |
| The BFSG has applied since 28 June 2025: quickly bring a mid-market website up to AA. | Accessibility Review (WCAG 2.1 AA) | Replaces 4 to 6 hours of an external audit |
| Weekly founder LinkedIn post | Content Creation | Saves 2 to 4 hours per piece of content |
| B2B SMB site before the next content sprint: SEO + AI search readiness in a single audit | SEO / GEO / AEO Website Audit | Saves 5 to 10 hours per audit (Quick 1 to 2 min, Full 5 to 10 min) |
| A custom skill for a recurring team workflow | Skill Creator | Saves several hours per new skill |
Your task is not in the list? We build custom skills for exactly your workflow, from the analysis to the team rollout.
How to install
Skills are small Markdown files with instructions that Claude activates automatically on the right triggers. Three ways:
01 · Claude Code
Plugin system
Install the plugin in your terminal. The skill is available in every Claude Code workflow.
claude code plugins install <plugin>02 · Cowork & Desktop
Plugin marketplace
Install the plugin from the marketplace in the Cowork sidebar. Active in every session.
Settings → Plugins → Browse03 · Manual
Drop in the SKILL.md
Copy or download it from the detail page and place it in your skills folder.
~/.claude/skills/<name>/SKILL.mdCommon questions about Claude skills
What are Claude skills and how do they work?
A Claude skill (also called an agent skill) is a small folder with a SKILL.md file: instructions, templates and knowledge that Claude loads automatically as soon as a task fits. You do not have to call the skill, Claude recognises from your prompt when it is needed.
How do I install a Claude skill?
In Claude.ai in the browser you upload skills under Settings, Capabilities. In Claude Code you drop the SKILL.md into the ~/.claude/skills/ folder or install the matching plugin from the marketplace. In Cowork and Claude Desktop you find skills in the plugin marketplace in the sidebar.
Are Claude skills free?
Yes, all 56 skills listed here are free and come from open sources (Anthropic and the community). You only need a Claude account; skills that produce files require a plan with code execution.
What is the difference between skills, projects and MCP connectors?
Skills are reusable instructions that Claude loads when needed. Projects bundle knowledge and files for one topic inside the Claude interface. MCP connectors link Claude to external systems such as databases or tools. Skills and connectors complement each other: the skill describes the approach, the connector provides the access.
Can I build a custom skill for my team, or have one built?
Yes. Simple skills you build yourself: one folder, one SKILL.md with a name, a description and instructions, done. Rule of thumb: whatever you have explained to Claude three times belongs in a skill. For skills with company workflows, data connections or a team rollout, we build it with you.
Build your own skill?
If a workflow keeps coming back on your team, a custom skill pays off. We help you build it, or turn your way of working into a Claude plugin you distribute yourself.