hcd.ai
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Repositories

Recommended GitHub repositories for AI tools, agent frameworks, and open-source implementations.

Last updated: 1 August 2026

agent-skills

20 production-grade engineering workflows packaged as structured skills across the dev lifecycle (Define, Plan, Build, Verify, Review, Ship).

SKILL.md specification

Open standard for portable, reusable AI agent skills.

claude-skills

192+ reusable production skills for Claude Code.

claude-code

Agentic coding tool that lives in your terminal.

claude-code-action

GitHub Action for running Claude Code in CI/CD pipelines.

modelcontextprotocol

Model Context Protocol specification and reference implementations.

claude-cookbooks

Official Anthropic cookbook: runnable notebooks covering tool use, RAG, evaluation, multi-agent patterns, and production guardrails.

awesome-claude-skills

Comprehensive collection of Claude Code skills across domains.

crewAI

Framework for orchestrating role-playing autonomous AI agents with task delegation, memory, and collaborative intelligence.

github/awesome-copilot

Official GitHub repository of community-contributed instructions, agents, skills, and configurations for GitHub Copilot — a practical reference for agentic coding workflows.

f/prompts.chat

Community prompt library (fka Awesome ChatGPT Prompts) covering Claude, Gemini, GPT and more. Self-hostable for org-wide privacy.

Shubhamsaboo/awesome-llm-apps

100+ runnable AI agent and RAG applications covering diverse use cases — clone, customise, and ship.

PatrickJS/awesome-cursorrules

Curated collection of .cursorrules configuration files that tailor Cursor AI editor behaviour across languages and frameworks.

elizaOS/eliza

TypeScript framework for building autonomous agents deployable across Discord, Telegram, Slack and other platforms, with plugin and RAG support.

heygen-com/hyperframes

Write HTML, render video — a TypeScript framework for agent-driven video generation using GSAP, Puppeteer, and ffmpeg.

haystack

Open-source AI orchestration framework for building production-ready LLM pipelines and agent workflows with explicit control over retrieval, routing, memory, and generation.

langgraph

Graph-based orchestration layer from the LangChain team for building stateful, multi-actor agent workflows with fine-grained control over cycles and branching.

mastra

TypeScript-first framework for building AI agents and applications, with built-in evals, MCP support, and workflow primitives — from the team behind Gatsby.

MemoriLabs/Memori

LLM-agnostic agent-native memory infrastructure that turns agent execution and conversation into structured, persistent state for production multi-agent systems.

obra/superpowers

Agentic skills framework and software-development methodology providing reusable shell-based skill primitives for AI coding agents.

punkpeye/awesome-mcp-servers

Curated directory of MCP servers spanning databases, browsers, file systems, and developer tools — the de facto community index for the Model Context Protocol ecosystem.

llama_index

LlamaIndex is a production-grade data framework for building LLM-powered agents and RAG pipelines, with connectors for hundreds of data sources and a modular query engine.

adk-python

Google Agent Development Kit for Python: code-first toolkit for building, evaluating, and deploying multi-agent systems with native A2A protocol support.

timesfm

Pretrained time-series foundation model for zero-shot forecasting.

awesome-claude-code

Curated list of skills, hooks, commands, and agent patterns for Claude Code.

langchain

Framework for building applications with large language models.

dify

Production-ready platform for agentic workflow development: visual pipelines, RAG, model routing, observability.

mem0

Universal memory layer for AI agents: episodic, semantic, and procedural memory stores with retrieval.

autogen

Microsoft's multi-agent conversation framework: define agents with roles, tools, and memory; orchestrate via conversation patterns.

openai-agents-python

OpenAI Agents SDK for building agentic AI applications in Python.

openai-cookbook

Official OpenAI cookbook: example code and guides for GPT models, Assistants, function calling, embeddings, evaluations, and Responses API.

paperclip

Open-source orchestration framework for zero-human companies.

dspy

Framework for programming — not prompting — language models. Declarative modules, compiled prompts, optimisers.