Triad: A TypeScript Framework That Unifies API Spec, Implementation, Validation, and Testing
By
justhamade
Toasted golden, schmeared with insight. Top of the rack.
Summary
Triad is a TypeScript/Node.js framework that unifies API specification, implementation, validation, and testing into a single source of truth. Developers write TypeScript once using a declarative DSL, and the framework automatically generates OpenAPI specs, AsyncAPI docs, BDD tests, Gherkin scenarios, database schemas, and validation logic — eliminating the need for separate, manually-maintained files that can drift out of sync. The framework is designed to be AI-friendly, making it easier for AI coding assistants to work with the codebase.
Key quotes
· 3 pulledTriad is a TypeScript-first API framework built on the idea that an API's specification, implementation, validation, and tests should never drift apart, because they are the same thing.
You write TypeScript once using Triad's declarative DSL, and you get: No codegen round-trips. No hand-maintained OpenAPI YAML. No duplicate Zod + OpenAPI + test-fixture schemas that fall out of sync.
Triad's north star is that an AI coding a
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