Claude Skills
The open format is called Agent Skills and works in Claude Code, Codex, Cursor and other agents — most people know it as Claude Skills.
Every Agent Skill we could find on GitHub, deduplicated by content. 86 696 files from 2 113 authors, of which 68 413 are unique — the rest is the same skill repackaged into someone else's repository. For each one: what it weighs in tokens, whether it ships runnable scripts, and which MCP servers it needs.
Creates professional infographics with Nano Banana Pro AI and smart iterative refinement, using Gemini 3 Pro for automated quality review and an optional Perplexity Sonar research phase for accurate, sourced data — supports 10 infographic types, 8 industry styles, and colorblind-safe palettes. Use when the request is for an infographic, data-story graphic, statistical poster, comparison chart, timeline, process/how-to visual, or list/social graphic that pairs a designed layout with figures. Use alterlab-scientific-schematics instead for technical flowcharts, CONSORT/PRISMA, pathways, or architecture diagrams; alterlab-generate-image for non-infographic illustrations. Part of the AlterLab Academic Skills suite.
Writes Markdown documents and text-based Mermaid diagrams (flowcharts, sequence, class, ER, gantt, state, and more) with full style guides, 24 diagram-type references, and 9 document templates. Use when authoring a scientific document, report, analysis, or README, or when a diagram should be expressed as version-controllable Mermaid/Markdown text rather than a rendered image. For AI-rendered publication schematics use scientific-schematics instead. Part of the AlterLab Academic Skills suite.
Creates publication-quality scientific diagrams with Nano Banana 2 AI and smart iterative refinement, using Gemini 3.1 Pro Preview for quality review and regenerating only when quality falls below the document-type threshold. Use when the request is for a technical or scientific diagram — neural-network architectures, system/block diagrams, flowcharts, biological pathways, circuits, or other complex scientific visuals. For general photos, illustrations, or artwork use generate-image, for text-based Mermaid diagrams use mermaid. Part of the AlterLab Academic Skills suite.
Orchestrates matplotlib, seaborn, and plotly with opinionated publication styles to produce journal-ready figures. Use when preparing journal-submission figures that need multi-panel layouts with bold panel labels, statistical significance annotations, error bars, colorblind-safe palettes (Okabe-Ito), or specific journal formatting (Nature, Science, Cell). Does NOT cover raw low-level plotting or fine-grained control of individual plot elements; for building custom plots from scratch or tuning every artist and rcParam prefer alterlab-matplotlib instead. Part of the AlterLab Academic Skills suite.
Builds statistical plots with the seaborn Python library and pandas DataFrame integration, on attractive matplotlib-based defaults. Use for quick exploration of distributions, relationships, and categorical comparisons — box plots, violin plots, swarm/strip plots, KDE/histograms, pair plots, joint plots, regression plots, correlation heatmaps, and faceted small multiples (relplot/displot/catplot/lmplot). For interactive/hover/zoom charts defer to alterlab-plotly; for exact journal/manuscript styling (column widths, point fonts, CMYK, vector export) defer to alterlab-scientific-viz; for low-level custom matplotlib figures defer to alterlab-matplotlib (seaborn integrates with it for fine-tuning). Part of the AlterLab Academic Skills suite.
Prepares academic career documents and professional-development materials for faculty and researchers. Use when drafting academic CVs, research statements, teaching philosophies, diversity statements, faculty-position cover letters, tenure dossiers, promotion narratives, academic portfolios, or mentorship statements, and when planning conference-networking strategy, building academic web presence, setting up ORCID profiles, or understanding impact metrics. Part of the AlterLab Academic Skills suite.
Formulates structured, testable hypotheses from experimental observations using a scientific-method framework — derives predictions, proposes mechanisms, and designs experiments to test them, then renders a LaTeX report. Use when turning observations or data into falsifiable, mechanistic hypotheses, competing-explanation sets, testable predictions, or experimental designs. For a standalone systematic literature review or evidence synthesis (not a means to hypotheses) use alterlab-literature-review; to evaluate an existing manuscript use alterlab-peer-review. Part of the AlterLab Academic Skills suite.
Creates professional research posters in LaTeX using beamerposter, tikzposter, or baposter — handles layout design, color schemes, multi-column formats, figure integration, and poster-specific visual-communication best practices. Use when building a conference or academic poster in LaTeX. For PowerPoint/PPTX poster output prefer pptx-posters instead. Part of the AlterLab Academic Skills suite.
Manages citations for academic research — searches Google Scholar and PubMed for papers, extracts accurate metadata, validates citations, and generates properly formatted BibTeX entries. Use when finding papers, verifying citation information, converting DOIs to BibTeX, checking reference accuracy in scientific writing, or building a bibliography. Part of the AlterLab Academic Skills suite.
Conducts comprehensive, systematic literature reviews across multiple academic databases (PubMed, arXiv, bioRxiv, Semantic Scholar), with PRISMA flow tracking, study screening (title/abstract and full-text), evidence-table extraction, and risk-of-bias assessment, producing professionally formatted markdown documents and PDFs with verified citations in multiple styles (APA, Nature, Vancouver). Use when running a systematic literature review, meta-analysis, research synthesis, or broad literature search, building a PRISMA flow diagram, screening studies, extracting an evidence table, or assessing risk-of-bias across biomedical, scientific, and technical domains. Part of the AlterLab Academic Skills suite.
Converts academic papers into promotional and presentation formats — interactive websites (Paper2Web), presentation videos (Paper2Video), and conference posters (Paper2Poster) from LaTeX or PDF sources. Use when disseminating a paper, preparing for a conference, building an explorable academic homepage, generating a video abstract, or producing a print-ready poster from a paper. Part of the AlterLab Academic Skills suite.
Writes structured, checklist-based manuscript and grant peer reviews — assesses methodology, statistical validity, reporting-standards compliance (CONSORT/STROBE/PRISMA), and gives constructive feedback. Use when writing a formal reviewer report, responding to a journal/grant review invitation, or revising a manuscript against reviewer criteria. For evaluating claims/evidence quality prefer alterlab-scientific-thinking; for a multi-reviewer mock-panel verdict use alterlab-paper-reviewer; for quantitative rubric scoring use alterlab-scholar-eval. Part of the AlterLab Academic Skills suite.
Creates research posters in HTML/CSS with responsive layouts and easy visual integration, exportable to PDF or PPTX. Use ONLY when the user explicitly requests a PowerPoint/PPTX/PPT poster, an HTML/web-based poster, or a poster they will edit in PowerPoint, or when LaTeX is unavailable. For a standard/conference research poster with no format named, use alterlab-latex-posters instead; for a slide deck/oral-talk presentation, use alterlab-scientific-slides. Part of the AlterLab Academic Skills suite.
Writes competitive research grant proposals for NSF, NIH, DOE, DARPA, and Taiwan NSTC — applies agency-specific formatting and review criteria, prepares budgets, and drafts broader-impacts, significance statements, and innovation narratives that comply with submission requirements. Use when drafting or revising a grant proposal, aligning a proposal to a funding agency's review criteria, or preparing grant budgets and compliance sections. For Turkey's TÜBİTAK 1001/1002-A national proposals use alterlab-tubitak-proposal; to write a reviewer's critique of someone else's proposal use alterlab-peer-review; for a journal manuscript use alterlab-scientific-writing. Part of the AlterLab Academic Skills suite.
Evaluates scholarly work with the ScholarEval framework, producing structured assessment across research-quality dimensions (problem formulation, methodology, analysis, and writing) with quantitative rubric scores and actionable feedback. Use when scoring or grading a paper, thesis, or research output against rubric-style criteria, or benchmarking publication readiness across revisions. For checklist-based narrative reviewer reports prefer alterlab-peer-review; for evidence/claim quality and argument soundness use alterlab-scientific-thinking. Part of the AlterLab Academic Skills suite.
Builds slide decks for research talks in PowerPoint and LaTeX Beamer, providing slide structure, design templates, timing guidance, and visual validation. Use when making conference presentations, seminar talks, research presentations, thesis-defense slides, or any scientific talk deck. Part of the AlterLab Academic Skills suite.
Writes scientific manuscripts in full flowing paragraphs (never bullet points) via a two-stage process — section outlines with key points using research-lookup, then conversion to prose — applying IMRAD structure, citations (APA/AMA/Vancouver), figures/tables, and reporting guidelines (CONSORT/STROBE/PRISMA). Use when drafting or revising research papers, journal submissions, or any manuscript section (abstract, introduction, methods, results, discussion), or professional/technical reports. For a specific venue's LaTeX template and house style use alterlab-venue-templates; to build a BibTeX bibliography or verify reference metadata use alterlab-citation-mgmt. Part of the AlterLab Academic Skills suite.
Simple Pomodoro timer for focused work sessions with session tracking and productivity analytics. Use when users request focus timers, ask about productivity patterns, or want to track work sessions over time. Demonstrates the System Skill Pattern (CLI + SKILL.md + Database).
Use when grading, reviewing, rewriting, or approving a Hermes Agent SOUL.md. Uses the SOUL.md field-guide research artifacts as the only normative source for what makes a good SOUL.md.
| Schedules and performs root-level Gradle operations for inspecting and operating existing builds. ## Positive Triggers (when to activate) ## Negative Triggers (when NOT to activate)
| Visually verifies Compose UI components and previews by rendering them to images from the JVM runtime. ## Positive Triggers (when to activate) ## Negative Triggers (when NOT to activate)
| Authors and modifies Gradle build definitions, project structure, build logic, and delivery wiring, including dependencies and catalogs, convention plugins, custom tasks, build lifecycle, Kotlin DSL, managed types and providers, toolchain and Java builds, configurations and variants, binary plugin development, Kotlin compiler options, publishing via the Central Portal, CI, locking, build scans, Worker API, continuous builds, and advanced configuration such as service injection, build services, value sources, and project isolation. ## Positive Triggers (when to activate) ## Negative Triggers (when NOT to activate)
| Provides a persistent JVM/Kotlin REPL for executing and probing project logic within the full classpath context. ## Positive Triggers (when to activate) ## Negative Triggers (when NOT to activate)
Review Kafka schema changes (Avro, Protobuf, JSON Schema) for compatibility and evolution best practices using the Lenses MCP server. Detects breaking changes, missing defaults, schema drift and naming issues. Use when user says "review schema changes", "check schema compatibility", "will this schema break consumers" or asks about schema evolution. Do NOT use for creating new schemas from scratch or registering them in the cluster.
Analyse Kafka consumer group lag using the Lenses MCP server. Diagnoses lag causes (throughput bottlenecks, rebalancing, partition skew, stalled consumers) and suggests remediation. Use when user says "check consumer lag", "why are consumers slow", "lag report" or asks about consumer group health or offset progress. Do NOT use for resetting offsets or managing consumer groups.
Review Kafka Connect connector configurations for common misconfigurations using the Lenses MCP server. Checks error handling, DLQ setup, converters, transforms, task count and task health. Use when user says "review connectors", "check connector configs", "why is my connector failing" or asks about Kafka Connect configuration. Do NOT use for creating, deploying or controlling connectors.
Generate a TestContainers Java test class that spins up ShadowTraffic in-process to populate a Kafka topic with synthetic data during tests. Invokes the kafka-shadowtraffic skill to build the ShadowTraffic config, then adapts it for a containerized test network and scaffolds a JUnit 5 test class with Kafka, optional Schema Registry, and ShadowTraffic containers wired together. Use when the user says "set up a Java TestContainers test with ShadowTraffic", "write a Java test that generates Kafka data", "create a TestContainers test for my Kafka consumer", "I want to test my Kafka consumer with synthetic data in Java", or "scaffold a ShadowTraffic Java test". Do NOT use for non-Java projects, standalone Docker setups (use kafka-shadowtraffic instead), or creating Kafka topics.
Scaffold a production-ready Python Kafka producer and consumer using `confluent-kafka-python`, with Schema Registry, graceful shutdown, idempotent producer, tests and a complete project layout. Discovers the target topic, partition count and registered JSON Schema directly from the live cluster via any attached Kafka MCP server (Lenses MCP, Confluent's MCP, Aiven's, custom) before asking the user. Use when user says "build a Python Kafka consumer", "scaffold a Kafka client in Python", "add Kafka to my Python service", "consume from `<topic>` in Python" or "write a Kafka producer". Do NOT use for Kafka Connect connectors, schema-evolution reviews or non-Python clients.
Review Kafka producer and consumer performance configurations in both the live cluster (via Lenses MCP) and the codebase. Flags un-tuned defaults, anti-patterns and missing best practices. Use when user says "review Kafka performance", "check producer configs", "tune Kafka settings" or asks about throughput, batching or compression. Do NOT use for cluster sizing or capacity planning.
Review dead letter queue implementations for completeness using the Lenses MCP server. Checks DLQ topic existence, configuration, monitoring, metadata preservation, retry logic, reprocessing paths and connector DLQ alignment. Use when user says "review dead letter queues", "check DLQ setup", "DLQ audit" or asks about error handling, message failures or reprocessing. Do NOT use for reprocessing DLQ messages or managing consumer offsets.
Audit Kafka security configuration across the codebase and live cluster using the Lenses MCP server. Checks authentication (SASL), encryption (SSL/TLS), authorisation (ACLs), secrets management and environment tier mismatches. Use when user says "audit Kafka security", "check security config", "is my cluster secure" or asks about authentication, encryption or credentials. Do NOT use for configuring certificates, creating SASL users or setting up ACLs.
Audit all Kafka topic configurations against production best practices using the Lenses MCP server. Checks replication factor, retention, partitions, compaction, naming conventions, orphaned topics and missing metadata. Use when user says "audit my topics", "check topic configs", "topic health check" or asks about retention, replication or partition settings. Do NOT use for creating, deleting or modifying topics.
Generate a ShadowTraffic configuration to populate a Kafka topic with realistic synthetic data. Discovers the target topic, its key and value schemas, and the correct serializers from the live cluster via any attached Kafka MCP server, then writes a ready-to-run `shadowtraffic-config.json` and Docker command. Use when the user says "populate my Kafka topic with test data", "set up ShadowTraffic for topic X", "generate synthetic events into my topic", "I need fake data flowing into Kafka", "seed my topic with data", or "mock data for my Kafka topic". Do NOT use for creating topics, reviewing schemas, or building Kafka consumers.
Route research tasks between a cost-conscious agentic search workflow, You.com Research API scripts, and managed or payment-aware MCP fallback.
Use You.com MCP tools for current web search, URL content extraction, cited web synthesis, and x402-aware web access.
Use test-driven development for behavior-changing feature or fix work, and whenever the user mentions TDD, test-first, red-green-refactor, tracer bullets, integration tests, or public-interface behavior tests. Skip for docs-only, path-only rename, formatting-only, or purely mechanical chores unless explicitly requested.
Interview the user relentlessly about a plan or design until reaching shared understanding, resolving each branch of the decision tree. Use when user wants to stress-test a plan, get grilled on their design, or mentions "grill me".
Route finance questions to an existing local script, a new You.com Finance Research API call, or an MCP payment-aware fallback.
Route You.com integration planning through the you-discover MCP tool, Docs MCP, and direct API options.
Use the free You.com MCP profile for unauthenticated basic web search with `you-search` only.
Personal research-paper radar. Fetches the latest papers and code repos for the user's keyword subscriptions across arXiv, Crossref (IEEE/ACM), Semantic Scholar, GitHub, HuggingFace, Papers with Code and RSS; deduplicates against history; then YOU (the assistant) expand the queries, filter for computer-science relevance, write Chinese summaries, detect hot sub-fields, and emit a Markdown + HTML digest (optionally emailed). Use when the user asks to "run my paper radar / 文献雷达", "check for new papers", "what's new in my topics", "今天有什么新论文 / 最新文献", "today's research digest", or to configure their keyword subscriptions / sources / schedule.
Generate and validate Pangolin Newt blueprint configurations in YAML or Docker Labels format. Use when creating Pangolin resource configurations, proxy resources, client resources, authentication settings, or Docker Compose blueprints.
Create professional SVG logos from descriptions and design specifications. Generates multiple logo variations with different layouts, styles, and concepts. Produces scalable vector graphics that can be used directly or exported to PNG. Use this skill when users ask to create logos, brand identities, icons, or visual marks for their designs.
Create new GitLab stack projects from templates with proper directory structure, git configuration, validation hooks, and documentation. Use when initializing new Docker stack projects that follow GitLab stack patterns.
Manages Docker secrets for GitLab stack projects, ensuring secrets are never in .env or docker-compose.yml, properly stored in ./secrets directory, and securely integrated with Docker secrets. Use when users need to create secrets, migrate from environment variables, validate secret configuration, audit secret usage, or ensure secrets are never committed to git.
Comprehensive Docker and Docker Compose validation following best practices and security standards. Use this skill when users ask to validate Dockerfiles, review Docker configurations, check Docker Compose files, verify multi-stage builds, audit Docker security, or ensure compliance with Docker best practices. Validates syntax, security, multi-stage builds, and modern Docker Compose requirements.
Validates GitLab stack projects before deployment, ensuring proper architecture patterns, directory structure, secrets management, .env configuration, and Docker best practices. Use when users ask to validate a stack, check stack configuration, verify stack architecture, audit stack setup, or ensure stack deployment readiness.
Generates service-specific configuration files for GitLab stack projects in ./config directory, using .env as the primary configuration source. Creates nginx, PostgreSQL, Redis, and custom service configs with strict validation for secrets, paths, and Docker best practices. Use when setting up service configurations, creating config templates, or ensuring configs follow stack patterns.
Comprehensive design architecture review for Python backend applications. Use this skill when users ask you to review, analyze, or provide feedback on backend architecture designs, system design documents, or Python application architecture. Covers scalability, security, performance, database design, API design, microservices patterns, deployment architecture, and best practices.
Comprehensive design review for websites and desktop applications with extensive accessibility analysis. Use this skill when users ask you to review UI/UX designs, wireframes, mockups, prototypes, or deployed interfaces for usability, accessibility (WCAG compliance), visual design, interaction patterns, responsive design, and best practices for web and desktop applications.
Create and refactor HTML5/JavaScript web designs from specifications or descriptions. Generates complete, accessible, responsive web designs with modern frameworks. Automatically verifies designs using Playwright MCP for accessibility and functionality testing. Use this skill when users ask to create web designs, mockups, landing pages, web applications, or refactor existing HTML/CSS/JS designs.
Create comprehensive business context profiles through guided interview. Use when the user wants to build or update their business profile, needs help defining their offerings, positioning, or brand identity.
Create comprehensive how-to guides and tutorials. Use when the user needs step-by-step instructional content, tutorials, documentation, or educational guides.
Create compelling social media bios for any platform. Use when the user needs bios for Twitter/X, Instagram, LinkedIn, TikTok, YouTube, or any social platform.
Create engaging LinkedIn posts that drive engagement and build authority. Use when the user wants to write LinkedIn content, needs posts for their LinkedIn strategy, or wants to repurpose content for LinkedIn.
Generate high-performing Substack notes that drive engagement and newsletter growth. Use when the user wants to create Substack notes, needs content ideas for notes, or wants to repurpose content into note format.
Create detailed Ideal Client Profile through guided interview. Use when the user needs to define their target audience, understand their customers' problems and language, or build an ICP for content targeting.
Create high-converting email sequences for sales, launches, and nurture campaigns. Use when the user needs email sequences, drip campaigns, launch emails, or automated email workflows.
Optimize LinkedIn profile sections for maximum impact and conversions. Use when the user wants to improve their LinkedIn headline, about section, experience descriptions, or overall profile strategy.
Create thought leadership content including long-form articles, essays, and opinion pieces. Use when the user needs authoritative content, wants to establish expertise, or needs to articulate a unique perspective on industry topics.
Claude Skills — questions
Answers built from the skills we actually parsed.