Open source. Open possibilities.

A library of 166 ready-to-use Agent Skills plus 100+ scientific database integrations that turn AI coding agents into research assistants for biology, chemistry, medicine, drug discovery and data analysis.

Ponytail is an AI coding-agent skill/plugin that nudges agents toward minimal, necessary code using a seven-rung decision ladder, plus review/audit commands. It supports Claude Code, Codex, Copilot CLI, Gemini, OpenCode, and many other coding tools via plugin installs or ruleset files.

Open-source library of 388 production-ready AI coding agent skills, plugins, and personas. Works with Claude Code, OpenAI Codex, Gemini CLI, Cursor, and 9 more tools across engineering, marketing, product, compliance, C-level advisory, and research domains.

An Agent Skills-compatible skill that turns natural language, code, Terraform/K8s, SQL, OpenAPI, AsyncAPI, Protobuf and GraphQL into editable, tested draw.io architecture diagrams with incremental sync, multi-view projection, drift diff, CI architecture tests, and interactive HTML/PPTX/Mermaid exports.

Web of Flaws is a structured, markdown-first catalog of web security vulnerabilities and secure code replacements designed for developers, security engineers, and AI coding agents.

A curated directory of 1000+ production-ready Claude Skills and plugins for enhancing AI agent productivity across Claude.ai, Claude Code, Cursor, Codex, Gemini CLI, and more.

A multi-harness agentic plugin marketplace offering 94 plugins, 202 agents, 183 skills and 105 commands, generated from one Markdown source for Claude Code, Codex CLI, Cursor, OpenCode, Antigravity CLI and GitHub Copilot.

A command-line interface for Google Workspace that dynamically generates commands from the Google Discovery Service to manage Drive, Gmail, Calendar, and other APIs.

Reactive Resume is a free, open-source resume builder with 15 templates, live preview, and PDF/JSON/DOCX export. It supports self-hosting, AI integration, and multi-language, with no tracking or ads.

39 editorial diagram types as self-contained HTML+SVG for AI coding assistants like Claude Code and Codex. Brand-matched, accessible, no build step. Import from draw.io, Mermaid, or Excalidraw.

Curated list of Claude Code resources—official Anthropic guides, tutorials, skills, plugins, hooks, MCP integrations, subagents, status lines, security and observability tooling, alternative clients, and agent orchestration examples.

A community-curated collection of custom agents, instructions, skills, hooks, workflows, and plugins for GitHub Copilot, with a searchable website, Learning Hub, and installable plugin marketplace.

Agent skill for OpenClaw and DeepSeek Harness enabling intelligent A-share stock selection, quantitative analysis, and stock pool management.

Retentioneering is an open‑source Python toolkit that provides reproducible product analytics on clickstream and event‑log data. It offers chainable data processors, interactive Jupyter widgets, a DuckDB‑backed Eventstream, and an MCP server that lets LLM agents run and validate analyses, producing shareable HTML reports.

Handoff is an agent skill for repositories where work continues across multiple AI-agent sessions. It keeps a shared HANDOFF.md ledger, audits apparently unfinished entries against Git history, code, tests and ownership, and offers a terminal progress dashboard plus a local agent message channel.

A curated directory of 5,300+ community-built skills for OpenClaw, a locally-running AI assistant. Skills are filtered from the official ClawHub registry and organized by category.

Open-source playbook pack for AI coding tools (Cursor, Claude Code, Codex CLI, Gemini CLI) with 145+ agent skills, 57 slash commands and MCP templates, automating full development workflows from onboarding to shipping, tuned for React/Next.js/Supabase.

Agent-facing tooling for Clics, a privacy-friendly, cookieless web analytics platform, providing MCP servers and a CLI for AI assistants.

Cadence generates video programmatically via Lua, using a seek-not-playback model. It compiles .lua files to MP4 via LÖVE and ffmpeg, with agent-friendly verification and linting.

OpenDesign is an open-source, local-first desktop alternative to Claude Design. It is agent-native, supports 25+ coding CLIs including DeepSeek Harness, generates prototypes, decks, images, videos with brand-grade DESIGN.md systems, and exports to HTML/PDF/PPTX/MP4 under Apache 2.0 license.