Your LLM just decided to delete a production alert rule. You didn't ask it to. The approval gate puts a human between the decision and the execution — not for every tool call, but for the ones where 'undo' is a support ticket.
We ran 5,300 measurements across 6 scenarios to benchmark MCP Hangar's parallel tool execution. The headline is 19.6× speedup. The actual findings are more interesting: stdio isn't serial, the framework costs nothing, and a hardcoded '4' was silently capping your concurrency.
MCP is exploding. Everyone's plugging random servers into their LLMs. Nobody's asking who's accountable when something goes catastrophically wrong. This is an enterprise nightmare waiting to happen, and you're sleepwalking into it.
Alerting on raw logs is the observability equivalent of payday loans: quick, easy, and financially ruinous. Here is why you need to stop treating text search as a reliability signal.