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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. 79 600 files from 1 763 authors, of which 61 947 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.

61 947
unique skills
out of 79 600 files found on GitHub
17 653
are copies
same content, someone else's repository
1 739
tokens, median
what a typical skill costs you in context
7 890
name collisions
two skills with one name cannot sit side by side

39 301–39 360 of 61 947

page 656 of 1 033
App Growth Playbook
by robertguss

Generate platform-specific, actionable growth playbooks for mobile apps. Use when planning a Product Hunt launch, creating TikTok/Reels content strategies, setting up Apple Search Ads campaigns, preparing App Store featuring submissions, building referral loops, designing email/push re-engagement campaigns, writing Reddit launch posts, or creating content marketing plans for app growth. Provides templates, scripts, timing guides, and step-by-step processes — not generic advice.

10k tokens
App Review Analyzer
by robertguss

Systematically analyze app reviews for competitor research or own-app reputation management. Categorize reviews by sentiment and themes (bugs, missing features, UX complaints, pricing objections, praise, support issues), identify actionable patterns, produce structured analysis reports, and draft professional review responses. Use when the user says "analyze app reviews", "review analysis", "competitor reviews", "respond to reviews", "app review report", "what are users complaining about", "review sentiment analysis", "draft review responses", or wants to understand user feedback patterns for any iOS App Store or Google Play app.

5k tokens
Ebook Discovery
by robertguss

Surface ebook ideas you didn't know you had. Use when ready to discover what ebooks might be hiding in your content, expertise, or thinking. Supports both content-rich creators (blog posts, videos, newsletters) and those with unpublished expertise. Produces a curated list of ebook candidates ready for Concept Development. Handles multi-session discovery with living documents.

24k tokens
App Creator
by robertguss

Orchestrate iOS/macOS app scaffolding and optional skill adoption for existing projects. Use when users want a guided wizard that can scaffold with XcodeGen and optionally install xcode-makefiles and simple-tasks.

15k tokens scripts
App Store Opportunity Research
by robertguss

Full-pipeline iOS App Store opportunity research. Discovers underserved niches, analyzes competitor gaps, estimates revenue, produces scored top-3 opportunity reports, and writes MVP PRDs — all through browser and web research. Use when the user wants to find profitable iOS app ideas, research App Store charts, analyze competitor apps (ratings, reviews, revenue, gaps), generate opportunity reports, or write MVP PRDs. Triggers on "find app opportunities", "app store research", "what app should I build", "research this app category", "find a gap in the app store", "ios app ideas".

15k tokens
Simple Tasks
by robertguss

Install a fast local task workflow for single-project planning with `scripts/task.sh` (claim, done, status, reporting) backed by `tasks/TASKS.md` and optional `tasks/details/` notes. Use for lightweight in-progress task coordination, not full team issue tracking.

7k tokens scripts
Book Architect
by robertguss

Design the structural and emotional architecture for nonfiction books. Use when an author has a validated book concept and needs to create the blueprint before drafting. Triggers include requests to structure a book, create a chapter outline, design a table of contents, map the reader's journey, or plan book organization. Requires upstream documents from book-ideation (Book Concept Document) and optionally from idea-validator (Validation Report) and market-research (Market Research Report).

24k tokens
Paywall Pricing Optimizer
by robertguss

Design effective paywalls, structure subscription tiers, and optimize pricing for mobile apps. Covers monetization model selection, paywall screen design, pricing psychology, A/B testing strategy, and RevenueCat/StoreKit/Google Billing integration. Use when the user wants to monetize an app, design a paywall, choose between subscription vs one-time purchase, set pricing tiers, improve conversion rates, plan pricing experiments, or integrate in-app purchases. Triggers on "design my paywall", "how should I price my app", "subscription tiers", "monetization strategy", "paywall copy", "free trial length", "RevenueCat setup", "improve paywall conversion".

7k tokens
Book Idea Validator
by robertguss

Stress-test book concepts against existing research before committing to architecture. Use when the user has a Book Concept Document ready for validation, wants to verify their thesis is defensible, needs to understand the competitive intellectual landscape, or wants honest assessment of their idea's strengths and weaknesses. Produces a Validation Report that informs the Go/No-Go decision. Nonfiction only.

9k tokens
Mobile App Launch Checklist
by robertguss

Comprehensive step-by-step launch checklist for shipping mobile apps to the iOS App Store and Google Play Store. Covers pre-submission preparation, store asset creation, build and submission, launch day execution, and post-launch monitoring. Use when the user wants to launch a mobile app, prepare for App Store or Google Play submission, create a launch plan, review submission requirements, or ensure nothing is missed before releasing an app. Triggers on "launch checklist", "app submission", "prepare for launch", "app store submission", "google play submission", "ready to ship", "pre-launch review", "launch day plan".

9k tokens
Xcode Makefiles
by robertguss

Install strict Xcode Makefile tooling for iOS/macOS projects, including build/run/test scripts with AGENT_NAME-based per-agent isolation under build/. Use when a project needs reproducible local CLI builds without full app scaffolding.

7k tokens scripts
Book Ideation
by robertguss

Develop raw book ideas into structured nonfiction book concepts. Use when the user wants to develop a book idea, has brainstorm documents to refine into a book concept, wants to articulate a book's thesis/promise/reader/transformation, or needs to prepare a book concept for validation and market research. Nonfiction only. Produces a Book Concept Document with all elements needed for downstream skills (idea-validator, market-research, book-architect).

5k tokens
Book Market Research
by robertguss

Assess commercial viability of book concepts for Amazon KDP self-publishing. Use when the user has a Book Concept Document and wants to understand market demand, competition, pricing, and positioning before committing to write. Produces a Market Research Report with viability scorecard and Go/No-Go recommendation. Works standalone (commercial analysis only) or after idea-validator (integrated assessment). Nonfiction only.

5k tokens
Book Research Assistant
by robertguss

Plan, orchestrate, and validate deep research for nonfiction books. Use when an author has completed book architecture and needs to fill research gaps before outlining chapters. Triggers include requests to plan research, generate research prompts, validate research quality, or prepare for drafting. This skill does everything around deep research—planning, prompting, validating, synthesizing—but the actual research execution happens externally via Claude and Gemini deep research. Requires upstream documents from book-architect (Research Gaps Document, Master Architecture Document, Section Blueprints) and book-ideation (Book Concept Document).

40k tokens
Chapter Architect
by robertguss

Plan and architect a single chapter at beat-level granularity. Use when you have a chapter from the Architecture Document and need to create a detailed outline before drafting. Produces a Chapter Outline Document for use by draft-coach or ghostwriter.

20k tokens
Ghost Writer
by robertguss

Produce first drafts that match a writer's authentic voice using their Voice DNA Document. Consumes DNA documents from writing-dna-discovery skill. Generates 2 meaningfully different drafts with headlines, confidence assessment, decision notes, and DNA refinement suggestions. Collaborative partner that evaluates, pushes back, and advocates for quality. Handles blog posts, essays, newsletters, and more.

52k tokens
Writing Dna Discovery
by robertguss

Capture a writer's voice DNA through collaborative interview and sample analysis. Use when someone wants to document their writing voice for use with a ghost writer skill. Produces a Voice DNA Document with patterns, anti-patterns, and actionable guidance. Handles one register/mode per session, supports refinement over time.

30k tokens
Narrator AI CLI
by NarratorAI-Studio

>- Create AI-narrated film/drama commentary videos via CLI. Two workflow paths (Original & Adapted narration), 93 movies, 146 BGM tracks, 63 dubbing voices in 11 languages, 90+ narration templates. Use when creating narration videos, film commentary, short drama dubbing, or video production.

5k tokens
Langfuse
by avivsinai

Debug AI agents and LLM applications via Langfuse MCP. Use when investigating traces, exceptions, slow generations, sessions, prompt versions, datasets, or evaluation sets. Triggers on "langfuse", "traces", "debug AI", "find exceptions", "what went wrong", "why is it slow", "datasets", "evaluation sets".

8k tokens
Pbi Modelo Review
by xperiun

Audita modelo Power BI (PBIP) e gera relatório priorizado com anti-patterns, score 0-100 e recomendações acionáveis. Use quando o usuário pedir "audita esse modelo", "revisa esse power bi", "tá bem feito?", "manda ver no review", ou apontar uma pasta PBIP pra análise crítica.

20k tokens
Pbi Doc
by xperiun

Documenta projeto Power BI (PBIP) inteiro em markdown estruturado + HTML navegável (mini-site de doc). Use quando o usuário pedir "documenta esse projeto", "gera doc do power bi", "explica esse modelo", "preciso entregar handoff", ou apontar uma pasta PBIP pra mapeamento descritivo (não auditoria).

22k tokens
Pbi Dax Create
by xperiun

Cria medida DAX a partir de descrição em PT, respeitando o modelo Power BI existente (colunas reais, naming convention, padrões DAX). Use quando o usuário pedir "cria medida pra X", "preciso de DAX que faça Y", "quero calcular Z", "uma fórmula pra...", ou qualquer pedido pra gerar nova medida em projeto PBIP aberto.

9k tokens
Pbi Report Builder
by lukasreese

[power-bi] Power BI PBIR Report Builder with IBCS Visuals. Generates Power BI report pages, visuals, and IBCS-compliant variance charts by writing PBIR JSON files directly into PBIP project folders. Use this skill EVERY TIME the user asks to: create a Power BI report page, add visuals to a report, generate KPI cards, create charts or tables in Power BI, build a dashboard layout with visuals, create IBCS variance charts, create actual vs plan visuals, or programmatically create Power BI visuals. Also trigger when the user mentions 'PBIR', 'IBCS', 'variance chart', 'variance table', 'actual vs plan', 'actual vs comparison', 'create visuals', 'add a page', 'build a report', 'KPI cards', 'place visuals', or wants to generate Power BI report content through code. If the user mentions any combination of Power BI + visuals/page/report/KPI/chart/table/IBCS/variance + create/build/generate/add, use this skill.

184k tokens
Pbi Requirements Gathering
by lukasreese

>

18k tokens
Pbip Dependency Analyzer
by lukasreese

Power BI PBIP Dependency Analyzer. Analyzes all Power BI Project (.pbip) files, TMDL exports, and semantic model definitions to map dependencies between measures, columns, tables, M/Power Query, relationships, and report visuals. Use this skill EVERY TIME the user asks to: find unused measures or columns, analyze dependencies, clean up a data model, check what would break if something is deleted, perform impact analysis, identify orphaned objects, audit model quality, or asks 'what can I delete'. Also trigger when the user uploads .pbip files, model.bim files, TMDL exports, or report.json files and wants to understand their structure or dependencies. Trigger phrases include: 'analyze dependencies', 'find unused', 'what can I delete', 'clean up model', 'impact analysis', 'dependency check', 'unused measures', 'unused columns', 'orphaned objects', 'model audit', 'PBIP analysis'.

3k tokens
Weaviate Cookbooks
by weaviate

Use this skill when the user wants to build AI applications with Weaviate. It contains a high-level index of architectural patterns, 'one-shot' blueprints, and best practices for common use cases. Currently, it includes references for building a Query Agent Chatbot, Data Explorer, Multimodal PDF RAG (Document Search), Basic RAG, Advanced RAG, Basic Agent, Agentic RAG, and optional guidance on how to build a frontend for each of them.

26k tokens
Weaviate
by weaviate

Search, query, and manage Weaviate vector database collections. Use for semantic search, hybrid search, keyword search, natural language queries with AI-generated answers, collection management, data exploration, filtered fetching, data imports from PDF/CSV/JSON/JSONL files, create example data and collection creation.

41k tokens scripts
Humanizer Zh Next
by Hyacehila

| 去除中文文本中由人工智能生成的痕迹。在编辑或审阅通用中文,以及论文、学位论文、审稿回复、 基金申请等中文学术文本时使用,使文字更自然,同时保留事实、学术语体、论断与证据的关系。 本技能基于 op7418/humanizer-zh、blader/humanizer 与 AIScientists-Dev/academic-humanizer, 遵循“改写而非删除、等量覆盖”原则;学术体裁须加载专门 reference。

23k tokens zh
Nemo Relay Debug Runtime Integration
by NVIDIA
vendor

Use this skill when NeMo Relay is installed or imported but application-side runtime behavior is missing or incorrect, including load failures, inactive scopes, missing events, and plugin or adaptive wiring problems.

6k tokens
Nemo Relay Get Started
by NVIDIA
vendor

Use this skill when first-time NeMo Relay users want to try Relay, choose the least-complex supported quick start, or verify initial value through the CLI, a maintained integration, or direct Python, Node.js, or Rust instrumentation before production setup.

14k tokens
Nemo Relay Install
by NVIDIA
vendor

Use this skill when choosing or running NeMo Relay installation for the CLI, Python, Node.js, Rust, OpenClaw, Hermes, or maintained framework integrations before runtime configuration or quick-start setup.

12k tokens
Nemo Relay Instrument Calls
by NVIDIA
vendor

Use this skill when an application owns tool or LLM/provider call sites and needs to wrap them with NeMo Relay scopes and managed execution APIs for lifecycle events, middleware, or guardrails.

5k tokens
Nemo Relay Instrument Typed Wrappers
by NVIDIA
vendor

Use this skill when adding NeMo Relay typed wrappers, domain types, or provider codecs while preserving JSON middleware semantics and caller-visible behavior.

6k tokens
Nemo Relay Instrument Context Isolation
by NVIDIA
vendor

Use this skill when concurrent requests, async tasks, threads, workers, goroutines, or agents need independent NeMo Relay scope stacks and correct ancestry propagation.

5k tokens
Nemo Relay Migrate From Flow
by NVIDIA
vendor

Use this skill when migrating applications, examples, integrations, documentation, manifests, or repository code from NeMo Flow to NeMo Relay across Python, Rust, Node.js, Go, C FFI, CLI, configuration, and observability surfaces.

11k tokens scripts
Nemo Relay Plugin Adaptive Tuning
by NVIDIA
vendor

Use this skill when baseline NeMo Relay instrumentation exists and the user wants to configure or evaluate adaptive plugin behavior, including telemetry, state, adaptive_hints, tool_parallelism, ACG, hint consumption, or measured rollout.

10k tokens
Nemo Relay Plugin Build
by NVIDIA
vendor

Use this skill when building or packaging reusable NeMo Relay runtime behavior as a configuration-activated plugin with deterministic validation and rollback-safe registration.

6k tokens
Nemo Relay Plugin Observability
by NVIDIA
vendor

Use this skill when choosing or configuring NeMo Relay 0.6 or 0.7 observability through the built-in plugin, subscribers, or exporters, including raw ATOF events, ATIF trajectories, OpenTelemetry, OpenInference, or custom event handling.

16k tokens
Contribute Docs
by NVIDIA

Contribute documentation or example changes that stay aligned with NeMo Relay public behavior

723 tokens
Draft Release Notes
by NVIDIA

Compare NeMo Relay release branches and draft or update the documentation-site release notes. Use when preparing a release-notes update under docs/about-nemo-relay/release-notes, reviewing release-to-release changes, or gathering evidence for a current release summary.

2k tokens scripts
Add Middleware
by NVIDIA

Add a new guardrail or intercept type to the NeMo Relay middleware pipeline

1k tokens
Maintain CI
by NVIDIA

Maintain and review NeMo Relay GitHub Actions workflows with explicit per-job permissions, pinned action SHAs, deterministic caching, reusable workflow permission boundaries, and local validation

1k tokens
Contribute API
by NVIDIA

Contribute a new NeMo Relay public API surface safely, with binding parity and docs in mind

260 tokens
Contribute Integration
by NVIDIA

Contribute a new or updated third-party framework integration for NeMo Relay

286 tokens
Add Binding Feature
by NVIDIA

Add or change a public NeMo Relay API surface across the core runtime and every affected binding

1k tokens
Karpathy Guidelines
by NVIDIA

Behavioral guidelines to reduce common LLM coding mistakes. Use when writing, reviewing, or refactoring code to avoid overcomplication, make surgical changes, surface assumptions, and define verifiable success criteria.

657 tokens
Maintain Dynamic Plugins
by NVIDIA

Maintain NeMo Relay dynamic plugin loaders, manifests, Rust native SDKs, gRPC worker protocol, Python worker SDK, docs, tests, and release workflow coverage

869 tokens
Maintain Optimizer
by NVIDIA

Maintain or extend the NeMo Relay adaptive surface across config, plugins, docs, and bindings; use this when users still say optimizer

571 tokens
Prepare Code Freeze
by NVIDIA

Prepare a NeMo Relay code freeze by creating the release branch, updating nightly alpha branch config, bumping main to the next version, and opening the required PR

885 tokens
Maintain Observability
by NVIDIA

Maintain or extend NeMo Relay observability surfaces across ATIF and typed OpenTelemetry projections

739 tokens
Maintain Packaging
by NVIDIA

Maintain NeMo Relay package metadata, module paths, generated artifacts, and release-facing build surfaces

536 tokens
Rename Surfaces
by NVIDIA

Perform a coordinated repository, package, crate, module, or symbol rename across NeMo Relay

426 tokens
Prepare Pr
by NVIDIA

Prepare, open, create, publish, update, or edit a NeMo Relay pull request or PR body with the right tests, docs, contributor hygiene, and repository pull request template

1k tokens
Review Doc Style
by NVIDIA

Review documentation, examples, and docs-heavy changes for NVIDIA technical writing style, terminology, and repo accuracy

7k tokens
Test Go Binding
by NVIDIA

Build and test the NeMo Relay Go binding; use this for go/nemo_relay changes or Go-facing integration checks

592 tokens
Test Python Binding
by NVIDIA

Build and test the NeMo Relay Python binding and worker plugin SDK; use for python/nemo_relay, python/plugin, or crates/python changes

930 tokens
Test Ffi Surface
by NVIDIA

Build and test the NeMo Relay FFI surface; use this for crates/ffi changes, header generation, or ABI-facing validation

439 tokens
Update Project Version
by NVIDIA

Update the NeMo Relay project version across Cargo, Node, and lockfiles without leaving release surfaces out of sync

1k tokens
Small Fix
by NVIDIA

Make a small, reviewable NeMo Relay bug fix without widening scope unnecessarily

261 tokens
Test Node Binding
by NVIDIA

Build and test the NeMo Relay Node.js binding; use this for crates/node changes or Node-facing integration checks

513 tokens

Claude Skills — questions

Answers built from the skills we actually parsed.

What is a Claude Skill?
A folder with a SKILL.md file: instructions that teach an agent to do one thing well, optionally with scripts and reference files alongside. The format is open and called Agent Skills — Claude Code, Codex and other agents read the same files. It is not a program you run; it is knowledge the agent loads when the task calls for it.
How is a skill different from an MCP server?
A server gives the agent new abilities — it connects to something and exposes tools. A skill gives the agent knowledge: how to use what it already has. They combine, and often literally: 11 352 of the skills here declare which MCP servers they need to work.
Why are there fewer skills here than in other catalogues?
Because we deduplicate by content. Of 79 600 files found on GitHub, 61 947 are unique — the rest is the same skill copied into someone else's repository, word for word. Catalogues that count files rather than skills show every copy as a separate entry.
What does the token count mean?
A skill is loaded into the model's context when it is used, so its size is a running cost on every request that touches it. We measure the whole folder, not just SKILL.md: one official skill is 377 tokens, another drags 83 files of fonts behind it.
How do I install a skill?
Copy the skill folder into ~/.claude/skills for personal use, or into .claude/skills inside a project. The agent picks it up by the name in the SKILL.md header — which is worth checking: 7 890 skills here share a name with another skill, and two of them cannot sit side by side.