# Codebase Analysis Progress

Project: FilaOps Core (`C:\repos\filaops`)
Started: 2026-06-17
Session: `codex-20260617-codebase-analysis`
Branch: `codex/codebase-analysis`

## Status

- [x] Phase 1: Discovery & Architecture
- [x] Phase 2: Component Analysis
- [x] Phase 3: Documentation & Recommendations

## Working Notes

### Phase 1: Discovery & Architecture

Status: Complete

- Read `AGENT_POLICY.md`.
- Confirmed repository role: FilaOps Core, open-source standalone ERP.
- Confirmed branch workflow: analysis work is on `codex/codebase-analysis`.
- Initial top-level structure observed: `backend`, `frontend`, `docs`, `scripts`, CI/config files, root Playwright package.
- Mapped backend stack: FastAPI, SQLAlchemy, PostgreSQL, Alembic, Pydantic settings, pytest/Ruff/mypy.
- Mapped frontend stack: React 19, Vite, React Router, Tailwind, Vitest, Storybook, Playwright.
- Counted size signals: 264 backend app Python files, 149 backend test files, 338 frontend source files, 51 frontend tests, 75 migrations, 55 docs markdown files.
- Reviewed app composition, API router registry, settings, DB session setup, auth dependencies, UOM config, frontend routing, API clients, tests, CI, and docs layout.

### Phase 2: Component Analysis

Status: Complete

- Analyzed backend composition/plugin boundary in `backend/app/main.py`.
- Analyzed API routing in `backend/app/api/v1/__init__.py`.
- Analyzed auth/session dependencies in `backend/app/api/v1/deps.py`.
- Sampled key domain services:
  - sales/order-to-cash: `sales_order_service.py`, `quote_service.py`
  - inventory/UOM/material flow: `inventory_service.py`, `uom_config.py`
  - manufacturing/scheduling: `production_order_service.py`, dispatch/scheduling services
  - MRP/procurement: `mrp.py`, `purchase_order_service.py`, buy list/supply netting
- Analyzed frontend routing/admin shell/API access patterns in `App.jsx`, `AdminLayout.jsx`, `apiClient.js`, `useApi.js`, and `api/axios.js`.
- Recorded pre-existing observations in Aeonyx:
  - Oversized backend/frontend modules that exceed repo file-size policy thresholds.
  - Mixed frontend API access patterns (`useApi`, legacy `api/axios`, and direct `fetch`).

### Phase 3: Documentation & Recommendations

Status: Complete

- Created comprehensive analysis at `docs/codebase-analysis.md`.
- Recommendations focus on:
  - behavior-preserving decomposition of oversized modules
  - frontend API client standardization
  - UOM/inventory invariant protection
  - Core/PRO boundary preservation
  - separating PDF/document rendering from lifecycle services
  - restoring small smoke E2E coverage
  - standardizing backend dependency imports
  - keeping generated references current after endpoint/model/migration changes

## Next Session Handoff

- Primary output: `docs/codebase-analysis.md`.
- Progress tracker: `codebase-analysis-progress.md`.
- Branch: `codex/codebase-analysis`.
- Current git status before final checks included pre-existing untracked `.claire/`; leave it untouched.
- This session intentionally did not change application code.
- If continuing into implementation, pick one recommendation and claim only the files involved before editing.