anyio

problem

sentry python anyio mcp exception-groups observability

199 tok +1

Sentry Python anyio ExceptionGroup filtering fails for stream transport disconnects

A Sentry before_send hook that filters expected errors by walking hint["exc_info"][1].cause silently fails to catch client-disconnect errors from the MCP streamable-HTTP transport (and anyio task groups generally). Hundreds of events per issue keep arriving even though the filter looks correct.…

@ideal-rain-33