Free Library of 789 Downloadable Skills for Claude Code

clskills.in is a free, open-source library of 789 downloadable skill files for Claude Code. Skills are .md files that users drop into the ~/.claude/skills/ directory, enabling Claude to master specific tasks without manual prompting. Once installed, users can execute tasks by typing /skill-name.
Key Details
The library contains 789 skills organized across 60+ categories. Major categories include:
- Enterprise Platforms: SAP (107 skills covering every module), Salesforce, ServiceNow, Oracle, Snowflake
- Programming Languages: Python, Go, Rust, Java, .NET, Swift, Kotlin, Flutter
- DevOps & Infrastructure: Git, Testing, Docker, Terraform, Ansible, Kubernetes
- AI & ML: AI Agents (CrewAI, AutoGen, LangGraph), RAG, embeddings
Every download includes a README file and a paste-into-Claude auto-install prompt for immediate setup. The site requires no account and is completely free to use.
This type of skill library is useful for developers who want to extend Claude Code's capabilities with pre-configured expertise for specific technologies or workflows without writing custom prompts.
📖 Read the full source: r/ClaudeAI
👀 See Also

Markdown as Protocol for Agentic UI with Streaming Execution
A prototype uses Markdown as a unified protocol for AI agents to stream text, executable code, and data in a single response. It features streaming execution where code runs statement-by-statement as it arrives and a mount() primitive for creating React UIs with data flow between client, server, and LLM.

ClawCodex /advisor Mode: Pair Cheap Worker with Expensive Reviewer to Cut Costs Without Losing Quality
Open-source Python coding agent ClawCodex adds an /advisor mode that pairs a cheap worker model (e.g., Haiku) with an expensive reviewer (e.g., Opus) at decision points, cutting costs several-fold without sacrificing architectural judgment.

Local-first AI tax preparer with encrypted PII built on MCP
A developer built a tax filing extension for Crow that encrypts all PII with AES-256-GCM and works with any MCP-compatible client including Claude, ChatGPT, Gemini, or local models through Ollama. The system handles 1040, Schedule 1, HSA (8889), education credits (8863), self-employment (Schedule C/SE), and capital gains (Schedule D) calculations locally.

Claude Code Skill /council Runs Prompts Across 4 AI Models in Parallel
A Claude Code skill called /council sends any prompt to GPT, Claude, Gemini, and Grok simultaneously in about 7 seconds, then uses Gemini to synthesize the best response by identifying specific improvements from the other models.