Wattage: A token-spend profiler and cost-regression gate for AI agents

Wattage is a token-spend profiler and cost-regression gate designed for AI agents, functioning like a "Kill-A-Watt meter." It analyzes traces to identify where tokens are being used or wasted, prices these patterns in real dollars, and suggests fixes. The tool can also fail CI processes if a change increases an agent's cost. An example shows a trace with "Token Efficiency: A (100)" and a total cost of "$0.0602," with a breakdown of token categories including "input" and "output."