Graphs in Production in Graph Engineering

Lessons in this section

1. Composing Patterns

   Real graphs combine patterns. Build a review graph from parallel audits, a verifier join, a router, a fixer loop and a human gate, and grade it on a scorecard over 40 tickets.

2. Observability and Replay

   When a graph run goes wrong, compare it with a run that worked. Find the first node that differs, read per-node tokens and verdicts, and see where the money goes.

3. Human Gates

   Put a person on the risky path: auth, payments and data migrations stop for approval, with the diff, the tests and the reason shown. Leave the quick path alone, so approvals stay real.

4. Capstone

   Build one of three graphs for your project: a risk-routed issue graph, a codebase migration graph, or a review-and-fix graph. Grade it on 40 tickets, keep it no bigger than needed, and export a graph pack for your tools.