Four routes, four capabilities
One domain. Each route introduces exactly one new idea and builds on the one before it.
POST /v1/triageStructured outputs
The model's output contract is your type system
POST /v1/resolveTool use
Claude queries your systems and shows its work
POST /v1/draftStreaming
Token-by-token delivery over SSE, with real cost accounting
POST /v1/estimateToken counting
Know the bill before you pay it
The scenario is a real place
Northwind Outfitters is invented, and you can still walk into it. Browse the gear, read the warranty you are about to make a claim against, then file a support ticket and watch your own words get classified by the same schema Lab 2 has you edit.
The labs
Roughly four hours end to end. Solutions included.