# Phase 12-01 Plan: Validation Gate

## Metadata

- wave: 1
- autonomous: true
- depends_on: []
- requirements: [VALID-01, VALID-02, VALID-03]
- files_modified: []

## Objective

Formal verification gate confirming the zero-error baseline established in Phase 11.
No file changes are required — this phase only runs the three validation commands
and records the results.

## Must-Haves

- VALID-01: `uv run ruff check .` exits 0 with zero violations printed
- VALID-02: `uv run mypy src/` exits 0 with zero errors printed
- VALID-03: `uv run pytest -v` exits 0 with all tests passing

## Tasks

### Task 1: Run all three validation commands

1. Run `uv run ruff check .` — confirm exit code 0, zero violations
2. Run `uv run mypy src/ --no-error-summary` — confirm exit code 0, zero errors
3. Run `uv run pytest -v --tb=short` — confirm exit code 0, all tests pass

Record results in SUMMARY.md.
