api-design
3 free lessons tagged api-design across AI, Computer Science. Each one is a short sequence of focused steps with narration and a five-question quiz at the end — take them in any order, no signup required.
Bedrock: One Door to Many Models
Amazon Bedrock's pitch is that model choice becomes a configuration value instead of a rewrite. This lesson takes that claim apart: the four API dialects Bedrock exposes over the same models, what the unified Converse API actually normalises, what it cannot normalise, and the inference and governance machinery that decides cost and blast radius.
Tool Use Patterns: Schema Design, Structured Output, and Validation Loops
A deep dive into designing tool schemas that LLMs actually call correctly — covering parameter naming, description quality, structured output via response schemas, output parsing, and error message design that drives self-correction.
Idempotency
Why "the same request twice should produce the same result" is one of the most useful properties you can give an API, the standard patterns for implementing it (keys, dedupe tables, natural idempotency), and what goes wrong when you don't.