# data_registry.py
import pandas as pd

class DataRegistry:
    def __init__(self):
        self._data={}

    def add_path(self, path: str):
        if path.endswith(".csv"):
            self._data[path]=pd.read_csv(path)
        # future: add PDF/TXT/MD parsing

    def get(self, name: str):
        return self._data.get(name)

    def names(self):
        return list(self._data.keys())