Hermes Agent Ships Tool Search for MCP: Anthropic Evals Show 49% to 74% Accuracy Gain on Opus 4 - MarkTechPost

MCP gave us the plumbing, but Hermes Agent just proved the bottleneck isn't the wire—it's the dial tone. Shipping Tool Search for MCP, Anthropic’s evals show a 49% to 74% accuracy jump on Opus 4. That isn’t noise; it’s a seismic re-calibration of what agentic reliability looks like. Why does this matter? Because context windows are finite, but tool ecosystems are frantic. Instead of stuffing every function definition into the prompt—burning tokens and blurring focus—we now search the namespace. This is the shift from brute-force memory to surgical retrieval. It signals a new arms race in agent infrastructure: not raw FLOPs, but semantic routing. The 74% ceiling isn't just a metric; it's a blueprint. It proves that raw compute is wasted if the model can't find the right wrench in time. We are pivoting from "smart