The Problem You deploy an MCP server. Agents start calling tools. Something breaks. How do you know? Right now, you don't. Most MCP servers are black boxes. No metrics. No error rates. No latency tracking. No alerts when a tool starts failing silently. I run 95 MCP tools across multiple projects. When a tool started returning empty results instead of errors, I didn't notice for three days. The agent just quietly worked around it, producing subtly wrong output. No crash, no log, no alert. That's when I built MCPWatch. What MCPWatch Does MCPWatch wraps any FastMCP server with a single line of code and gives you full operational visibility: from vigil import MCPWatch watch = MCPWatch ( server ) Enter fullscreen mode Exit fullscreen mode That's it.…