AI Workflows & Agentic Architecture Directory

Google's newly open-sourced MCP Toolbox unifies 16 database engines under a single MCP server protocol. Build a production multi-DB agent workflow that queries PostgreSQL, BigQuery, Redis, MongoDB, Elasticsearch, and more through one consistent tool interface.

OneCLI (YC S26, 88 HN points) launched an open-source sandboxed agent harness for teams. This workflow builds the same architecture: Docker-isolated agent sandboxes, a shared tool registry for team-wide reuse, and per-developer agent budgets for fair resource allocation.

A developer built a 1.3M-line agent-native OS in Rust while homeless — the HN story captured the imagination of the agent community. This workflow breaks down the architecture and shows how to build your own agent-native operating system: scheduling, memory isolation, and tool access control for autonomous AI.

Ghidra MCP (356 HN points) brought 110 reverse engineering tools to Claude Desktop. This workflow builds a production-grade binary analysis pipeline: connect Ghidra's decompiler, disassembler, and data flow analyzer to any MCP client for AI-assisted vulnerability discovery.

Moltis (131 HN points) showed the world what an AI assistant with memory, tools, and self-extending skills looks like. This workflow builds the same architecture — a LangGraph agent that creates its own tools, grows its skill set, and persists everything across sessions.

A real-world AI agent in 2026 ran a DN42 scan loop that bankrupted its operator's cloud account in hours. This workflow builds a self-healing cost control system that enforces token budgets, detects cost anomalies, and circuit-breaks runaway agents before they burn cash.

Pipelex (122 HN points) introduced a declarative language for repeatable AI workflows. This build walks through creating production-ready declarative agent pipelines — define your workflow in YAML, run it with a single command, and reuse pipelines across any agent task.

Goose (53,000+ GitHub stars) is an open-source extensible AI agent that goes beyond code suggestions to install dependencies, execute commands, edit files, and run tests autonomously. Build a LangGraph workflow that extends Goose with custom tools and multi-model orchestration.

NanoBot (47,000+ GitHub stars) is the ultra-lightweight, self-hosted AI agent framework in Python with WebUI, tools, memory, MCP, and multi-agent orchestration. Build a LangGraph workflow that extends NanoBot with persistent memory and MCP tool chaining.

Headroomlabs' Headroom compresses tool outputs, logs, files, and RAG chunks before they reach the LLM — achieving 20% fewer tokens for coding agents and 60-95% fewer for structured data. Build a LangGraph workflow that wraps any agent pipeline with Headroom compression for instant cost and latency savings.

WebLLM by mlc-ai runs 27B parameter models entirely in-browser via WebGPU. Build a LangGraph agent workflow that processes sensitive data clientside with zero server costs and zero data egress.

Google's Gemini 3.8 Flash Cyber scored 863 points on Hacker News with its cyber-security-first architecture. Build a LangGraph workflow that autonomously scans codebases, enriches CVE data, and generates verified patches.