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COMPLETE COURSE · 2026

🕸️ Graph Engineering

Of isolated loops a agent graphs. The course starts from scratch—what a node is, what an edge is—and ends with you drawing, running, and debugging a real agent graph. With an antidote to the hype along the way.

Four-stage infographic. (1) Simple loop: a red circle spinning over a single person icon, with the labels 1 task, 1 metric, 1 goal. (2) Harnesses and skills: four boxes — tools, memory, prompt, validation. (3) Orchestrator: a central brain connected to planning, routing, state, and checklist. (4) Agent graph: a golden mesh with research, data, execution, analysis, validation, observability, and shared memory, all interconnected. Below, the Why graphs? section — parallelism, dependencies, multiple metrics, scalability — and the final banner: Loop Engineering (isolated, fragile, optimizes 1 metric) versus Graph Engineering (orchestrated, resilient, balances the system).
What to look at: the progression from left to right is the entire course in one image. Stage 1 (red) is the loop: a task, a metric, one goal — and Track 2 shows exactly why that “one” is the limit. Stages 2 and 3 are what you hang around the loop to help it handle more (harness, orchestrator). Stage 4 is the graph. Notice the bottom band: the promise isn’t “faster,” it’s balance the system instead of optimizing just one number.
5
Tracks
15
Modules
90
Topics
~10h
Duration

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The sentence that holds up through the hype

“A loop already is a graph — a graph whose path returns to a previous node.”

You don't if condition from loops to graphs. You composes loops in graphs when one loop is no longer enough—and pays for it in prompts, in state schema and new failure modes. Get the loop right first; build the graph when the work calls for it.

LOOP agent plan · act · verify 1 context · 1 metric · sequential compose LOOP GRAPH back edge: “rejected, try again” plan orchestrator research writing data review output

What to look at: the two diagrams have in nodes e edges — the difference isn’t conceptual; it’s in the structure. On the left, a single edge that loops back to the same node: everything happens in one context, one step at a time. On the right, the same work split into four nodes that run at the same time, each with its own clean context, plus a red edge going back (the reviewer rejected it). Each light-blue box inside is still a loop.

What you will know how to do by the end

✓ You'll leave here able to

  • ✓Read and draw a graph (nodes, edges, direction, weight) without getting overwhelmed
  • ✓Design a loop with a stopping condition and a verifier that works
  • ✓Decide, based on clear criteria, between a standalone agent, a loop, and a graph
  • ✓Break a task into nodes with clean context, then fan out / fan in
  • ✓Write the state schema between nodes and predict new failure modes
  • ✓Use ready-made prompts to design the graph and turn it into executable code

✗ What this course does NOT do

  • ✗It doesn’t claim that “the loop is dead.” The loop isn’t dead—it’s become the graph’s node
  • ✗It doesn’t force you to adopt any framework to learn the concept
  • ✗Don't repeat marketing numbers without a source (there's a whole module for that)
  • ✗Don't confuse them knowledge graph / GraphRAG with graph engineering
  • ✗It doesn't mean you should turn every agent into a distributed system

The 5 tracks

Who it’s for (and what you need to know first)

Prerequisites

No knowledge of graph theory required. If you’ve used an AI agent (Claude Code, Codex, any bot) and know what a prompt is, you’re ready. Track 1 defines each technical term the first time it appears.

Who it’s for

Anyone building with agents who has already hit the ceiling of a single agent: developer, PM, founder, automation builder. And anyone who saw “graph engineering” in a tweet and wants to understand it before dropping everything.

💡 How to study

Mark each section as read—that’s how your progress moves forward. Select a passage to highlight or annotate. Mark “I have a question” without hesitation: it all comes back in the panel My journey.