Resources

Deep-dive guides, tutorials, and practical documentation for the AI tools you use every day.

140 resources across 66 tools

24 results

reference

Ai Ml Education

GeneralReferenceBeginner3 min read

Awesome Free University AI/ML Course Notes

A curated GitHub index of official, free, written AI and machine-learning course notes from universities, filtered for prose quality and primary-source links.

Ai Ml Education
Micrograd Autograd Engine Reference
GeneralReferenceBeginner5 min read

Micrograd Autograd Engine Reference

A source-backed guide to Andrej Karpathy’s micrograd repository, a tiny educational autograd engine and neural-network library with a PyTorch-like API.

Ai Development
RealReplicaBench
GeneralReferenceAdvanced3 min read

RealReplicaBench

RealReplicaBench: Benchmarking Long-Horizon Agents in High-Fidelity, Stateful, and Reproducible Replicas of Real Online Services OpenTools classifies it as an AI-agent evaluation resource for builders testing realistic long-horizon workflows.

General
Google Agent Skills Reference
GeneralReferenceIntermediate5 min read

Google Agent Skills Reference

A source-backed guide to Google’s public Agent Skills repository for Google Cloud, Gemini, Agent Platform, GKE, BigQuery, RAG, monitoring, logging, and agent operations.

Google Agent Skills
Cloudflare Agent Skills Reference
GeneralReferenceIntermediate3 min read

Cloudflare Agent Skills Reference

A source-backed guide to Cloudflare Skills, Cloudflare’s public skills repository for teaching agents how to build on Cloudflare’s developer platform.

Cloudflare Skills
Enterprise System Design Reference for AI Systems
GeneralReferenceAdvanced4 min read

Enterprise System Design Reference for AI Systems

A practical reference for engineers designing reliable production systems, including AI systems, inference, serving, agents, memory, security, reliability, cloud, HPC, and edge architecture.

Ai Systems
Claude SEO Skill Reference
GeneralReferenceIntermediate3 min read

Claude SEO Skill Reference

A source-backed guide to claude-seo, a Claude Code skill collection for technical SEO, E-E-A-T, schema, GEO/AEO, backlinks, local SEO, Google APIs, and reporting.

Claude Seo
awesome-mcp-servers
GeneralReferenceBeginner3 min read

awesome-mcp-servers

A collection of MCP servers. OpenTools treats it as a practical MCP discovery resource for builders, with source-backed usage and verification notes.

General
Human Writing Skill Reference
GeneralReferenceIntermediate3 min read

Human Writing Skill Reference

A source-backed guide to human-writing, a Chinese writing and editing skill that helps AI-generated Chinese text read like a specific person rather than generic model prose.

Human Writing
Claude Plugins Community: Marketplace for Claude Code Plugins
OrganizationReferenceBeginner2 min read

Claude Plugins Community: Marketplace for Claude Code Plugins

Claude Plugins Community is Anthropic’s read-only mirror of the community plugin marketplace for Claude Cowork and Claude Code, including the install source for approved community plugins.

Anthropic
Awesome Free LLM APIs Reference
GeneralReferenceBeginner1 min read

Awesome Free LLM APIs Reference

A reference guide to the awesome-free-llm-apis list of permanent free LLM API providers and OpenAI-compatible endpoints.

Llm Apis
OpenAI Plugins Example Repository
OrganizationReferenceIntermediate2 min read

OpenAI Plugins Example Repository

A curated OpenAI repository showing Codex plugin examples, manifests, skills, app integrations, commands, hooks and MCP-backed workflow patterns.

Openai
System Prompts and Models of AI Tools Reference
GeneralReferenceIntermediate2 min read

System Prompts and Models of AI Tools Reference

A high-signal GitHub reference collection for studying system prompts, internal tool specs, and model patterns across popular AI products.

Ai Developer Resources
Claude Cookbooks: Official Recipes and Notebooks by Anthropic
ToolReferenceIntermediate5 min read

Claude Cookbooks: Official Recipes and Notebooks by Anthropic

Anthropic's official collection of Jupyter notebooks and code recipes demonstrating practical Claude usage patterns including agents, tool use, RAG, and multimodal capabilities.

Claude Code
Agent Skills Specification
GeneralReferenceIntermediate3 min read

Agent Skills Specification

Agent Skills is an Apache-2.0 specification and documentation project for packaging reusable AI-agent capabilities as portable skill folders.

Ai Agent Skills
Awesome GitHub Copilot - Custom Agents, Skills & Plugins Collection
ToolReferenceIntermediate12 min read

Awesome GitHub Copilot - Custom Agents, Skills & Plugins Collection

A community-created collection of custom agents, instructions, skills, hooks, workflows, and plugins to supercharge your GitHub Copilot experience. 31K+ GitHub stars.

Github Copilot
OpenAI Cookbook - Examples and Guides for the OpenAI API
ToolReferenceBeginner45 min read

OpenAI Cookbook - Examples and Guides for the OpenAI API

The official OpenAI Cookbook is a comprehensive collection of examples, guides, and best practices for using the OpenAI API. Covers GPT-4, ChatGPT, embeddings, fine-tuning, and more.

Openai
Model Context Protocol Servers Reference
GeneralReferenceIntermediate2 min read

Model Context Protocol Servers Reference

The official Model Context Protocol servers repository, useful as a reference catalog for MCP server implementations and integration patterns.

Ai Resources
Claude Code Plugins Official Directory
ToolReferenceBeginner3 min read

Claude Code Plugins Official Directory

A practical guide to Anthropic's official Claude Code plugin directory, its repository structure, install command, trust model, and use cases.

Claude Code
Awesome Copilot: Community Instructions, Agents and Skills
ToolReferenceBeginner5 min read

Awesome Copilot: Community Instructions, Agents and Skills

Community-contributed collection of GitHub Copilot instructions, agents, skills, and configurations to help you get the most out of GitHub Copilot in your workflow.

Github Copilot
Google Gemma Cookbook
LLMReferenceIntermediate3 min read

Google Gemma Cookbook

Google Gemma Cookbook is a collection of examples, guides, and notebooks for working with Google’s Gemma open model family.

Gemma 4 26b A4b
Awesome AI Apps Project Collection
GeneralReferenceIntermediate2 min read

Awesome AI Apps Project Collection

A curated reference to Arindam Majumder’s awesome-ai-apps repository, a large collection of practical RAG, agents, voice, MCP, memory, and workflow examples.

Ai Development
Awesome Claude Code Subagents: 100+ Ready-to-Use Agent Configs
ToolReferenceBeginner6 min read

Awesome Claude Code Subagents: 100+ Ready-to-Use Agent Configs

A curated collection of 100+ specialized Claude Code subagent configurations covering code review, testing, DevOps, database, security, and more.

Claude Code
reference

Ai System Prompts

GeneralReferenceIntermediate3 min read

System Prompts Leaks Reference Collection

A public GitHub reference collection of extracted system prompts from major AI tools, useful for studying prompt design, agent behavior, and safety patterns.

Ai System Prompts