# install deps + dev tools
uv sync --dev

# run tests (13 tests covering all tools)
uv run pytest -q

# run as an MCP server over stdio (used by MCP clients)
uv run portfolio_data_mcp.py

# run over SSE for local HTTP testing
uv run portfolio_data_mcp.py --transport sse --port 8765

# register the server so an MCP client can connect
uv run mcp install portfolio_data_mcp.py --name "portfolio-data"

echo 'channel,spend,conversions
social,3500,210
search,4200,330
display,3800,95
email,1100,180' | uv run python -c "
import asyncio, portfolio_data_mcp as m
asyncio.run(m.main())  # starts stdio server
"

tools: load_csv(name="x", csv_text=...)   -> schema
       summary(name="x")                  -> statistics
       top_rows(name="x", column="spend", n=3)

python-portfolio/
├── portfolio_data_mcp.py   # the MCP server (tools + logic)
├── tests/
│   └── test_portfolio_mcp.py   # 13 passing tests
├── pyproject.toml
└── README.md