I read a post this week where someone connected three MCP servers to one agent and watched it casually request the same access it'd need to hit production. The comment thread was full of "yeah, that's the whole problem with MCP" takes, and I almost scrolled past it — I don't run three servers, I run one. Then I actually opened server.py to check, and realized my one server has the exact same shape of problem, just folded into a single file instead of spread across three.
server.py is a FastMCP server with 8 tools split across two unrelated jobs: GitHub profile/repo reads, and DEV.to article reads and writes. Both credentials get loaded the same way, at import time, into the same process environment:
def load_env(path=".env"):
try:
with open(path) as f:
