# Constitution: SDD-Native Python Project

**Philosophy**: Intent is the source of truth. Specifications generate code.

## Article I: Intent over Implementation
The specification is the authoritative source of truth. Implementation details MUST NOT override intended behaviors defined in the spec.

## Article II: Test-First Imperative
This is NON-NEGOTIABLE: All implementation MUST follow TDD.
No implementation code before:
1. Unit tests written.
2. Tests validated and approved.
3. Tests confirmed to FAIL (Red phase).

## Article III: Pythonic Rigor
- Use Python 3.12+ features.
- Strict typing with `mypy`.
- Formatting with `ruff`.
- Dependency management via `uv`.

## Article IV: Simplicity & Anti-Abstraction
Prefer clear, readable code over complex abstractions. Do not introduce generic patterns unless explicitly requested in the spec.

## Article V: Library-First Design
Develop core logic as modular libraries. CLI or GUI interfaces are consumers of these libraries.

## Article VI: Integration-First
Features are not complete until they pass integration scenarios defined in the `quickstart.md`.

## Article VII: Atomic Baby Steps™
Every change must be the smallest meaningful unit of progress. Verify EACH step before proceeding.