walkinglabs/learn-harness-engineering

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Learn Harness Engineering A project-based course on building the environment, state management, verification, and control mechanisms that make AI coding agents work reliably. 🌍 This course is available in 15 languages : English, 简体中文, 繁體中文, 日本語, 한국어, Español, Français, Русский, Deutsch, العربية, Tiếng Việt, Oʻzbekcha, Türkçe, Portuguese (BR), Українська. Choose your language from the badges above. 🆕 What's New — August 2026 Graph Engineering Update — 1 new lecture, 1 new project What Details Lecture 14 From Single Loops to Graph Engineering — Why a single loop grows into a graph: the four stacked layers (prompt → context → loop → graph) and where harness sits in that stack, the four parts of a graph (nodes, edges, shared state, routing), why in-loop checkpoints can't fix the three structural failures at scale (Goodhart, blindness upward, conflict), a framework-agnostic six-step walkthrough for building your first graph, graph vs. workflow, anchors, which open-source "graph engineering" projects existed before the name vs. after it, the orchestration tax, and when a graph is actually worth drawing. Project 08 Draw Your Workflow as a Graph — Three progressive experiments: draw your…

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