Phase 1: Test-Driven AI Development · 50 min · Python · pytest
Spec-First Development with AI Assistants
The spec is the contract. The tests are the evidence. The AI is the implementer.
Real-world application: Engineers who practice spec-first development with AI assistants demonstrate the ability to define behavioral requirements before implementation -- a skill that becomes critical when AI generates the implementation and the spec is the only source of truth for correctness.
What you will learn
- Write behavioral specifications from natural language requirements
- Translate specifications into pytest test cases with edge cases
- Generate code from tests by prompting AI assistants with spec + tests
- Handle ambiguous specifications where the AI fills in gaps incorrectly
Introduction
Spec-First Development with AI Assistants
Objective
Write a behavioral specification for a function, generate pytest tests from it, build an AI prompt, and use an AI assistant to generate code that passes all tests.
The spec is the contract. The tests are the evidence. The AI is the implementer.
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