Tons of Skills
425 plugins, 2,810 skills, 200 agents for Claude Code. Open-source marketplace at tonsofskills.com with the ccpi CLI package manager.
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What is Tons of Skills?
Tons of Skills is the largest open-source marketplace for Claude Code plugins and agent skills, offering 431 plugins with 2,769 auto-activating skills across 28 categories including DevOps, security, testing, data, AI/ML, and SaaS integrations. The platform extends Claude Code (and compatible tools like Cursor, Codex, and Gemini CLI) with new capabilities through AI instruction files (SKILL.md), MCP servers, slash commands, and specialized AI agents that activate automatically based on conversation context.
Key features include the ccpi CLI package manager for instant plugin installation, SaaS skill packs with 24-30 deep-integration skills per platform (Supabase, Vercel, Sentry, Cursor, OpenRouter, Groq, LangChain, PostHog, and 34+ more), curated plugin collections like DevOps Essentials and Security Toolkit, and comprehensive documentation with 24 guides covering installation, building plugins, publishing to the marketplace, and schema references. The platform supports Model Context Protocol (MCP) servers for exposing external tools and APIs to Claude, lifecycle hooks for automated behaviors, and includes 200 specialized agents for multi-step autonomous workflows.
This tool is for developers, DevOps engineers, data scientists, and AI practitioners who use Claude Code and want to extend its capabilities without building from scratch. It serves teams needing production-ready agent workflows, individuals looking for SaaS platform integrations, and open-source contributors who want to publish their own plugins. The MIT license allows inspection, modification, and contribution to any plugin.
Tons of Skills pricing
Pricing model: Freemium
All plugins and skills are completely free under MIT license. The marketplace offers 431 packages on npm with 14,130 total downloads at no cost. SaaS skill packs (Supabase, Vercel, Sentry, Cursor, OpenRouter, Groq, LangChain, PostHog, and 34+ more) are free to install via /plugin install [pack-name] or npm i @intentsolutionsio/[pack-name]. No paid tiers, subscriptions, or premium features exist. Live screen-share training with creator Jeremy Longshore for plugin development and workflow optimization may be paid but details are not publicly listed.
Tons of Skills pros
- 431 plugins with 2,769 auto-activating agent skills
- 28 categories covering DevOps, security, testing, data, AI/ML
- 106 SaaS integration packs with 24-30 skills each
- ccpi CLI enables one-command plugin installation
- Skills activate automatically based on conversation context
- 100% open source under MIT license
- Comprehensive documentation with 24 guides and schema references
- Supports MCP servers for external tool integration
- 200 specialized agents for autonomous multi-step workflows
- Works with Claude Code, Cursor, Codex, and Gemini CLI
- Regular weekly updates with new plugins added
- Curated collections like DevOps Essentials and Security Toolkit
- No configuration needed after plugin installation
- Slash commands provide direct control over specific capabilities
- Community-driven with contribution welcome
- Dynamic context injection for SKILL.md files
- Live screen-share training available from creator Jeremy Longshore
Tons of Skills cons
- Requires Node.js package manager (pnpm/npm/yarn/bun) for CLI installation
- Claude Code v2.1.80+ required for some plugins like slack-channel
- Learning curve for building custom plugins and SKILL.md files
- Some plugins marked as research preview with potential instability
- No built-in GUI for plugin management beyond website browsing
- Relies on external npm registry for plugin downloads
- SaaS packs require API credentials for platform integrations
- MCP server plugins require TypeScript knowledge to build
Frequently asked questions about Tons of Skills
What are Claude Code plugins?
Claude Code plugins are packages you install that contain skills, commands, and agents. Think of them like extensions for VS Code—each one adds new capabilities to Claude. When you install a plugin, Claude automatically gets new skills with no configuration needed. Plugins extend Claude Code with new capabilities through AI instruction files (SKILL.md), MCP servers, and SaaS skill packs.
How do skills work?
Skills are instructions that activate automatically based on conversation context. When you ask Claude to do something a skill covers, it kicks in without you doing anything extra. For example, excel-analyst-pro auto-invokes when xlsx files are in the conversation. You install a plugin, ask Claude anything normally, and Claude detects the right skill for the job and uses it for better results with zero extra effort.
How do I install plugins?
There are two methods. Option A (CLI recommended): Run 'pnpm add -g @intentsolutionsio/ccpi' (also works with npm, yarn, or bun), then 'ccpi install <plugin-name>'. Option B (inside Claude Code): Run '/plugin marketplace add jeremylongshore/claude-code-plugins' to add the full marketplace, then '/plugin install <name>' for individual plugins. Installation takes about 60 seconds.
What's the difference between plugins, skills, and agents?
Plugins are packages you install containing skills, commands, and agents. Skills are auto-activating instruction sets (SKILL.md files) that give Claude domain expertise and kick in based on context. Agents are specialized AI personas with capabilities, tool restrictions, and autonomous multi-step workflows defined in agents/*.md files. Commands are slash commands you type explicitly like /audit or /deploy for direct control.
Are there paid plugins or subscriptions?
No. All 431 plugins and 2,769 skills are completely free under MIT license. The marketplace is 100% open source. You can inspect, modify, and contribute to any plugin. SaaS skill packs for platforms like Supabase, Vercel, and Sentry are also free to install via npm or the CLI.
What SaaS platforms have integration packs?
There are 30+ vendor packs including Supabase (30 skills), Vercel (30 skills), Sentry (30 skills), Cursor (30 skills), OpenRouter (30 skills), Kling AI (30 skills), Retell AI (30 skills), Perplexity (30 skills), Windsurf (30 skills), FireCrawl (30 skills), Groq (24 skills), LangChain (24 skills), PostHog (24 skills), Clerk (24 skills), Linear (24 skills), Apollo (24 skills), and 34 more. Each pack has 24-30 skills covering authentication, operations, debugging, and production best practices.
Can I build and publish my own plugins?
Yes. The platform provides complete guides for building Claude Code plugins from scratch, covering plugin.json configuration, commands, skills, agents, directory structure, validation, and testing. There are step-by-step tutorials for writing SKILL.md files, creating MCP server plugins in TypeScript, and publishing to the marketplace. The process includes requirements, marketplace.extended.json setup, sync-marketplace, enterprise validation, submission process, and versioning.
What is the ccpi CLI?
ccpi is the CLI package manager for Claude Code plugins. Install it with 'pnpm add -g @intentsolutionsio/ccpi' (works with npm, yarn, or bun too). Commands include install, list, search, upgrade, validate, and diagnose Claude Code plugins from your terminal. It connects to the Tons of Skills marketplace to browse and install the 2,800+ agent skills.
What are MCP servers in Claude Code plugins?
MCP (Model Context Protocol) servers are TypeScript servers that expose external tools, data sources, and APIs to Claude through a standardized protocol. They let plugins integrate with external services like Kobiton's real-device cloud via remote MCP. Building an MCP server plugin involves TypeScript project setup, tool implementation, building executables, .mcp.json configuration, and testing.
How do I get help or contribute?
The community is available to help through GitHub discussions. You can join the Discussion on GitHub for questions or when stuck. The platform is open source with MIT license, so you can contribute plugins to the marketplace, file issues, and join discussions. Every plugin includes comprehensive docs, examples, and usage guides. There's also a weekly newsletter with deep-dives on agent skills, new plugin drops, and workflow tips.