More Tools Made AI Worse

Something strange happened in late 2025. Engineers at Anthropic noticed that their AI agents were choking on their own capabilities. The more tools they connected, the worse their systems performed. A typical setup linking five common enterprise services (GitHub, Slack, Sentry, Grafana, and Splunk) consumed roughly 55,000 tokens just in tool definitions before the agent had even read a single user request. One internal deployment devoured 134,000 tokens on tool descriptions alone, leaving the mo...