A collection of 177 validated scientific skills for AI agents, covering biology, chemistry, medicine, and data analysis, plus 100+ scientific database references.
Agent harness system of skills, agents, hooks, rules, memory, and security scanning for Claude Code, Codex, Cursor, and other AI coding tools.
An open, structured graph of 1,616 primary-school micro-topics with prerequisite dependencies and curriculum standards alignment.
A repository of official Cursor plugins for developer tools and workflows, plus the plugin specification they follow.
Modular SKILL.md instructions that ground AI agents in Android development best practices from developer.android.com.
Port of Poteto's pstack, a set of opinionated agent workflow skills, translated for Claude Code, Codex, Copilot, Pi, OpenCode, and Gemini.
A multi-harness collection of plugins, agents, skills, and commands for AI coding tools like Claude Code, Codex CLI, and Cursor.
A design skill for Claude Code, Cursor, and Codex that generates UI deliberately avoiding generic AI-generated aesthetics.
A 21-lesson Microsoft course teaching how to build generative AI applications, with code examples in Python and TypeScript.
A curated list of LLM APIs that offer permanent free tiers for text inference, with base URLs, models, and rate limits.
A curated list of open-source video games and open-source remakes of commercial games, grouped by genre.
A free Vibe Coding course that teaches beginners to build and launch AI-assisted products from plain-language descriptions.
An open, bilingual Chinese-language book-guide on lifelong learning in the AI era, covering English study, AI learning, real projects, and personal recovery.
An open-source, animated, illustrated tutorial on data structures and algorithms with runnable code in many languages.
A collection of Agent Skills for Claude Code, Cursor, Codex and other AI coding agents covering web design, retrieval, image prompting and video.
Curated list and one-command installer for 750+ open-source intelligence and security tools across 50 categories.
A curated reference of Claude Code best practices covering subagents, commands, skills, hooks, memory, and workflows.
A large curated guide covering self-hosting tools, hardware, and setup walkthroughs for running software on your own servers.
A collection of Go-specific agent skills covering language, testing, security, and observability for AI coding assistants.
Open-source mini quadruped robot built on an ESP32, with 3D-printable parts, 8 servos, and an OLED face.
Example notebooks and guides showing how to accomplish common tasks with the OpenAI API.
A collection of 42+ runnable Jupyter notebooks, each tutorial covering an advanced technique for Retrieval-Augmented Generation systems.
Agent Skills collection that teaches AI agents how to build on Cloudflare Workers, the Agents SDK, and the Developer Platform.
A collection of examples, tutorials, and apps for building with Liquid AI's open-weight LFM models and the LEAP SDK on laptops, mobile, and edge devices.
Open-source LaTeX textbook teaching introductory systems programming in C on Linux and POSIX, used in UIUC's CS 341 course.
A curated Markdown list of search engines for security work, covering servers, vulnerabilities, exploits, leaks, and threat intelligence.
A community-written guide covering methods and test cases for security testing web applications and web services.
Source repository for the docs.github.com documentation site, including its Markdown content and TypeScript site code.
Nix flake packaging AI coding agents and developer tools, with packages updated automatically every day.
A beginner curriculum teaching the Model Context Protocol (MCP) with hands-on code examples in C#, Java, JavaScript, Rust, Python, and TypeScript.
Developer hub with training recipes, cookbooks, datasets, and end-to-end examples for building with NVIDIA's open Nemotron models.
Public domain JSON dataset of 800+ exercises with images, plus a searchable Vue frontend for browsing it.
A free book teaching the foundations needed to write an operating system from scratch on x86_64.
Collection of dozens of minimal bare-metal x86 operating system examples for learning low-level system programming, tested in QEMU and on real hardware.
Scripts and Makefile flow that run RTL-to-GDSII physical design end to end using the OpenROAD toolchain.
Community-maintained set of Microsoft Intune configuration baselines for Windows devices, built from CIS, NCSC, ACSC and Microsoft guidance.
Official SharePoint developer documentation covering SharePoint Framework, SharePoint Embedded, list formatting, and site scripts, published to Microsoft Learn.