TDD Workflow

Core Principle

Never write implementation code before a failing test exists for that behavior.

Execution Flow

1. Setup

LANG = config_read("tech_stack", "unknown")
If LANG == "unknown": detect from project files (package.json → TypeScript, Gemfile → Ruby, go.mod → Go, pyproject.toml → Python)
If LANG == "unknown": AskUserQuestion("What language/framework?")

RUNNER = lookup LANG in [references/language-configs.md]
If LANG in [ruby]: delegate to `rspec-coder` or `minitest-coder` skill for runner details