fin-hub/.claude/rules/stack-and-commands.md

## Stack

- **Language:** Python 3.12+
- **Package manager:** uv
- **Key deps:** hub-core (generic hub primitives), pydantic, httpx

## Dev Commands

```bash
# Install dependencies
uv sync

# Run tests
uv run pytest

# CLI — runway projection
uv run finhub runway --balance 12000 --monthly-burn 2100,2200,2000

# CLI — import cost CSVs
uv run finhub import-cloud tests/fixtures/cloud-costs.csv
uv run finhub import-anthropic tests/fixtures/anthropic-billing.csv
uv run finhub import-hosteurope tests/fixtures/hosteurope.csv

# CLI — ledger (SQLite at .fin-hub/ledger.db)
uv run finhub ledger set-balance 12000
uv run finhub ledger import cloud tests/fixtures/cloud-costs.csv
uv run finhub ledger summary

# CLI — scheduled evaluation (cron/systemd friendly)
uv run finhub evaluate --emit

# CLI — dogfood evidence artefact
uv run finhub evidence --seed-fixtures

# HTTP read API
uv run finhub serve
# GET http://127.0.0.1:8080/runway/summary
# GET http://127.0.0.1:8080/runway/monthly-burn

# CLI — emit cross-hub signals (requires STATE_HUB_API)
uv run finhub runway --balance 12000 --monthly-burn 2100 --emit
```