Harness

Build and operate AI products.

Engineering guides, interactive labs, and worked examples for the decisions behind a real system.

Engineering tracks

Choose the decision you’re working on.

Map boundaries, data flows, and API contracts.

Search, ranking, scheduling, memory, and deterministic control.

Design for deployment, retries, and recovery.

Experiments, incrementality, prediction, and optimisation.

Coding agents, tools, memory, orchestration, and evaluation.

Featured case · Preview

Follow a reporting request from its API contract to the results. Use sample data to see how a system can make incomplete reports useful.

Publication

Explore the evidence behind decisions in growth, marketing, and how AI products reach people.

Skills

Explore reusable skills, agents, plugins, and tools, with setup and availability for each.