An open-source plugin/skill/agent marketplace for Claude Code, featuring 423 plugins, 2,849 skills, 177 agents, a CLI package manager, and a browsable website.
Tons of Skills is an open-source plugin marketplace for Anthropic's Claude Code, maintained by Jeremy Longshore (Intent Solutions IO) under the MIT license. Built as a pnpm monorepo at version 4.28.0, it aggregates 1,146 commits from 16 contributors.
Core assets include 423 plugins spanning 18 categories (AI/ML, API Development, DevOps, Security, Databases, etc.), 2,849 SKILL.md skill definitions, 177 installable agents, and 106 SaaS skill packs (each containing 24-30 skills covering 42+ platforms including Supabase, Vercel, Shopify, and Stripe). Plugins come in two types: AI instruction-based (Markdown) that inject domain knowledge into Claude Code, and MCP server-based (TypeScript) that enable external API calls via the Model Context Protocol.
Distribution is available through four channels: the ccpi CLI (@intentsolutionsio/ccpi with search/install/list/update/validate commands), Claude Code built-in command integration, standalone npm packages (26 published packages), and Cowork ZIP downloads. The data pipeline flows from marketplace.extended.json (source of truth with featured/mcpTools/pricing metadata) through sync-marketplace to generate a CLI-compatible marketplace.json, then distributed via GitHub Pages to CLI local caches.
The marketplace website is built with Astro 5, deployed on GitHub Pages (tonsofskills.com), using a 6-step build pipeline (discover skills → extract README sections → sync catalog → Fuse.js unified search → build Cowork ZIPs → Astro build) with a performance budget of ≤40 MB gzipped bundle, <30s build time, and 2,800-4,000 routes. Quality assurance includes a Python validator v5.0 (Standard/Enterprise tiers) and a testing stack of Vitest + Playwright. CI/CD is handled via GitHub Actions covering validation, publishing, and daily stats refresh.