---
phase: 01-foundation
plan: 01
subsystem: infra
tags: [python, ruff, pre-commit, hatchling, pytest]

# Dependency graph
requires: []
provides:
  - Python project structure with src layout
  - pyproject.toml with hatchling build backend
  - ruff linting and formatting configuration
  - pre-commit hooks for code quality
  - pytest configuration with async support
affects: [02-bot-core, all-future-phases]

# Tech tracking
tech-stack:
  added: [python-telegram-bot, sqlalchemy, httpx, aiosqlite, pytest, pytest-cov, pytest-asyncio, ruff, pre-commit, hatchling]
  patterns: [src-layout, editable-install]

key-files:
  created:
    - pyproject.toml
    - .pre-commit-config.yaml
    - src/moai/__init__.py
    - src/moai/bot/__init__.py
    - src/moai/bot/handlers/__init__.py
    - src/moai/core/__init__.py
    - tests/__init__.py
  modified: []

key-decisions:
  - "hatchling as build backend (modern, works well with uv/pip)"
  - "src layout with tool.hatch.build.targets.wheel.packages configuration"
  - "ruff-pre-commit v0.14.13 with --fix flag for auto-corrections"
  - "pre-commit-hooks v5.0.0 for standard file hygiene"

patterns-established:
  - "src layout: all source code under src/moai/"
  - "Module docstrings: required on all __init__.py files"
  - "Version in __init__.py: moai.__version__ for programmatic access"

issues-created: []

# Metrics
duration: 8min
completed: 2026-01-16
---

# Phase 1, Plan 1: Project Scaffolding Summary

**Python project scaffolding with pyproject.toml (hatchling), ruff linting, pre-commit hooks, and src layout structure**

## Performance

- **Duration:** 8 min
- **Started:** 2026-01-16T15:00:00Z
- **Completed:** 2026-01-16T15:08:00Z
- **Tasks:** 3
- **Files created:** 7

## Accomplishments
- Created pyproject.toml with all dependencies and tool configurations
- Configured pre-commit with ruff linting/formatting and standard hygiene hooks
- Established src layout package structure matching SPEC.md architecture

## Task Commits

Each task was committed atomically:

1. **Task 1: Create pyproject.toml** - `39b1781` (build)
2. **Task 2: Create pre-commit configuration** - `5856e6b` (chore)
3. **Task 3: Create src layout and package structure** - `44e2322` (feat)

**Plan metadata:** (pending)

## Files Created/Modified
- `pyproject.toml` - Project metadata, dependencies, ruff/pytest config
- `.pre-commit-config.yaml` - Pre-commit hooks configuration
- `src/moai/__init__.py` - Package root with __version__
- `src/moai/bot/__init__.py` - Bot subpackage marker
- `src/moai/bot/handlers/__init__.py` - Handlers subpackage marker
- `src/moai/core/__init__.py` - Core subpackage marker
- `tests/__init__.py` - Test package marker

## Decisions Made
- Used hatchling with explicit `packages = ["src/moai"]` for src layout (required for editable install)
- Selected ruff-pre-commit v0.14.13 (latest stable as of 2026-01-16)
- Used pre-commit-hooks v5.0.0 for standard hooks

## Deviations from Plan

### Auto-fixed Issues

**1. [Rule 3 - Blocking] Added hatch build configuration for src layout**
- **Found during:** Task 1 (pyproject.toml creation)
- **Issue:** Hatchling couldn't find package without explicit src layout config
- **Fix:** Added `[tool.hatch.build.targets.wheel] packages = ["src/moai"]`
- **Files modified:** pyproject.toml
- **Verification:** pip install -e ".[dev]" succeeds
- **Committed in:** 39b1781 (Task 1 commit)

---

**Total deviations:** 1 auto-fixed (blocking issue), 0 deferred
**Impact on plan:** Auto-fix was necessary for hatchling to work with src layout. No scope creep.

## Issues Encountered
None - all tasks completed successfully after the hatchling configuration fix.

## Next Phase Readiness
- Project scaffolding complete, ready for Phase 1 Plan 2 (database models)
- All tooling in place: ruff, pre-commit, pytest
- Package importable and version accessible

---
*Phase: 01-foundation*
*Completed: 2026-01-16*