# 3 Years of Graph Engineering with LangGraph

> Sydney Runkle and Harrison Chase on why production agents need cycles not DAGs, how LangGraph nodes evolved from code to full agents, and when graphs are the wrong abstraction. 65M+ downloads/month validate the approach.

Canonical URL: https://kravhal.kcsatish.com/insights/week-41
Edition: Article 19 · July 2026
Tags: Agents, LangGraph, LLMs
Reading time: 8 min read

---

This is a mirror of an article first published in the AI & Automation Chronicle.

Full text with the original formatting: https://chronicle.kcsatish.com/posts/week-41
Markdown of the original: https://chronicle.kcsatish.com/posts/week-41.md
Structured JSON of the original: https://chronicle.kcsatish.com/api/v1/posts/week-41.json

Cite the Chronicle as the publication of record for the research claims in this article.