Cult UI — AI agent patterns collection

A GitHub collection (by @nolly-studio) of 92+ copy-paste-ready AI agent patterns built on the Vercel AI SDK — “a library of recipes you can mix and match,” explicitly not a new SDK. Covers the canonical agent architectures (ReAct, plan-and-solve, retrieval-augmented) plus real-world building blocks (web search, code execution, database queries), each as a self-contained snippet with “minimal dependencies — just plain code you can adapt.” Ships full-stack templates (ecommerce multi-agent, RAG platforms) and example apps (competitor research, data analysis, WCAG accessibility audit).

Why it matters here

It’s the recipe-library point on the agent-structure spectrum: where a harness bakes structure into a runtime, Cult UI hands you the structure as portable, frameworkless patterns to paste into your own stack. That’s a concrete, code-level instance of building-effective-agents‘s thesis — start from simple, composable patterns (ReAct, prompt-chaining, routing) rather than reaching for a heavy framework. It also sits on the “agent = composition” thread: the value is the catalogued patterns and their fit to a task, not a monolithic agent product.

Tier

T3 — secondary tech-roundup writeup (opensourceprojects.dev) of the first-party GitHub repo; the repo itself is the primary. The pattern count and “framework-free recipes” framing are the source’s; not independently benchmarked.

Related

building-effective-agents · agentic-coding-harness · agent-orchestration · spec-driven-development · langchain-custom-harness